Give Your Review Here:


Recent Reviews

★★★★★ Written by Sgt Brenton M. Kirk on July 17th, 2024

I’m in the United States Army in South Korea. If you work in the process improvement unit, you've no doubt heard of the Six Sigma Green Belt exam. Don't let this exam become an obstacle! I made it.
This examination can be completed with proper preparation. When I get out the US Army after I retire one day I see myself being a Warehouse Operations Manager.
This is a step toward my goal. Thank you Six Sigma Institute family for their service.

Sgt Brenton M. Kirk, Supply NCO, 560th MCGA
★★★★★ Written by John Ferns on July 17th, 2024

Great Course! Easy to follow and worth the time to take!

John Ferns, US Army Recruiter
★★★★★ Written by Christian Jackson on July 17th, 2024

Great experience!

Christian Jackson, Amazon Staffing Coordinator
★★★★★ Written by Dr. Guido Bose on July 17th, 2024

Thanks, Great Certification and Training!

Dr. Guido Bose, Dr. Ingenieur Luft und Raumfahrt - Airbus
★★★★★ Written by Marquis Fowler on July 17th, 2024

Great Course and Platform that prepares you to excel. Awesome Training that helped me learn and plethora of knowledge.

Marquis Fowler, U.S. Army
★★★★★ Written by Treviaus James on July 17th, 2024

Overall fantastic course!

Treviaus James, U.S. Army, Senior Logistics Manger
★★★★★ Written by Timothy Leaks on July 17th, 2024

The Certified Six Sigma Green Belt course was simply amazing. Very good learning material to follow. Yeliz Obergfell is the best. I can highly recommend the International Six Sigma Institute.

Timothy Leaks, Logistician, US Army
★★★★★ Written by Lafir Ali on July 17th, 2024

Excellent institution to learn and get accredited for Six sigma certification. Reading material provided is very clear and easy to understand. 5 stars

Lafir Ali
★★★★★ Written by Ahmed Altuwaijri on June 18th, 2024

It was a wonderful experience, and I want to praise the professional work carried out by the organization at all levels, whether from academic subjects, methods of dealing, and all the way to the quality of the website itself. All of this was wonderful.

Ahmed Altuwaijri
★★★★★ Written by Pedro Momodu on June 5th, 2024

A fantastic course and great certification.

Pedro Momodu, Head, Operations, Correco Int. Serv.
★★★★★ Written by Dr. Josue Benitez on May 21st, 2024

Excellent Exam Platform! Keep up the great work!

Dr. Josue Benitez, Senior Project Manager, Johns Hopkins Medicine
★★★★★ Written by Faouzi Azoaugh on May 18th, 2024

I had an excellent experience with International Six Sigma Institute. They were highly knowledgeable and explained complex concepts clearly and accessibly. Their passion for the subject was evident and motivating. The instructor was patient, answered all questions, and encouraged discussion and deeper understanding. The interactive teaching methods and practical examples made the material engaging and easier to grasp. I highly recommend International Six Sigma Institute for anyone seeking a high-quality and inspiring learning experience.

Faouzi Azoaugh, Secuur
★★★★★ Written by Ahmed Abouelnaga on May 15th, 2024

Highly recommended to learn and get certified from the Six Sigma Institute.

Ahmed Abouelnaga, PMO Consultant
★★★★★ Written by Bryan Manuel on May 11th, 2024

This website is great. They let you study and work at your own pace. Then you can test when you are ready. You will have full access to the book and plenty of time to ready yourself.
Highly recommend this website and their program for Six Sigma belts.

Bryan Manuel
★★★★★ Written by Angel on May 5th, 2024

Great study material & certification, and vey affordable price.

Angel, ICQA Data Analytics
★★★★★ Written by Eric on April 22nd, 2024

Great training and course for self improvement.

Eric, Retired Military, US Army
★★★★★ Written by Jose Alfaro on April 17th, 2024

The course is easy to understand and provides very helpful information.

Jose Alfaro, U.S. Navy
★★★★★ Written by Elizabeth Newman on April 4th, 2024

I recently took the Six Sigma Green Belt Certification. I was very pleased with the robust and comprehension curriculum and the supporting study materials. The exam was challenging and fair based on the course material. I wholeheartedly recommend this program.

Elizabeth Newman
★★★★★ Written by Ericson Mendoza Manimtim, Cm, Com, Cssmbb, Mba on March 27th, 2024

I had a fantastic experience with International Six Sigma Institute™. The course material was well-organized and easy to follow, and the instructors were knowledgeable and helpful. I feel like I learned a lot and am confident in my ability to apply Six Sigma principles in my work. I would definitely recommend International Six Sigma Institute™ to anyone looking to enhance their skills and knowledge in process improvement.

Ericson Mendoza Manimtim, Cm, Com, Cssmbb, Mba, Plant Coordinator
★★★★★ Written by Meriem Amri on March 25th, 2024

Very good training material and exam experience.

Thanknyou for your guidance and availability.

Meriem Amri, Certufucation manager
★★★★★ Written by Rod Alves on March 9th, 2024

For those considering certification, I highly recommend International Six Sigma Institute as they offer top-notch education and support. Thanks to Yeliz Obergfell for her invaluable support throughout my journey. From my initial inquiry about the online training course to her comprehensive response, her dedication to excellence and commitment to supporting aspiring Six Sigma professionals like myself have been truly inspiring.

Rod Alves, Quality & Process Improvement Manager
★★★★★ Written by Fawaz Jamaan on March 7th, 2024

I found the course to be immensely beneficial, and I am grateful for the knowledge and skills I have gained as a result of your efforts and expertise. The site's features were particularly helpful, and the smoothness of the test-taking process made the learning experience even more enjoyable and efficient.

Fawaz Jamaan, Business Operations Lead
★★★★★ Written by Marco Rivera on March 6th, 2024

I express my gratitude for the opportunity to participate in the Six Sigma Green Belt program.

Marco Rivera, Manager, Nova Software
★★★★★ Written by Toufik Beytour on February 28th, 2024

Very simple learning method straight to the point, and makes you ready to pass the exam

Toufik Beytour, Project manager
★★★★★ Written by Renay Shandu on February 22nd, 2024

Really seamless way to attain my Black Belt Certification award and the cost of the lifetime certification is truly affordable. The study is really end to end, with key information readily available. truly happy with my decision.

Qill come back to attain the Project Management Trainer cert later in the year.


Renay Shandu
★★★★★ Written by Arjun Bali on February 19th, 2024

The course material is very well laid out. The Six Sigma Book is a worthwhile and a very intuitive read. The videos and support documentation is very helpful to help ace the certifications.

Arjun Bali, Vice President, Operational Excellence
★★★★★ Written by Georgios Karampatos on February 10th, 2024

I am very satisfied.

Georgios Karampatos, Energy & New Technologies Supervisor, AB Vassilopoulos Single Member S.A.
★★★★★ Written by Carlos Martinez on January 21st, 2024

Great learning, material, examination. Recommended.

Carlos Martinez, DBA and IT Operation
★★★★★ Written by Ishmael Cofer on January 19th, 2024

Great skills for my toolbox!

Ishmael Cofer, Supply NCOIC
★★★★★ Written by Rajalingam Rajesh on January 13th, 2024

Thanks, Great Certification and Training!

Rajalingam Rajesh, Quality Manager
★★★★★ Written by Ionut Vaida on January 10th, 2024

Great experience! Thank you.

Ionut Vaida
★★★★★ Written by Konstantinos Athanasopoulos on January 9th, 2024


Konstantinos Athanasopoulos, GREECE
★★★★★ Written by Hoo Lin on January 7th, 2024

Good and professional program at affortable budget.

Hoo Lin
★★★★★ Written by Alex Mbabaali on January 6th, 2024

Most affordable and easy way to teach yourself for all belts! Look no where but trust lnternational Six Sigma Institute. Awesome!!

Alex Mbabaali
★★★★★ Written by Devon on January 5th, 2024

It was an easy read. I understood everything that was being explained. Highly recommend this course to everybody.

★★★★★ Written by Jihen Sassi on December 30th, 2023

Je suis très contentée d'avoir ma certification merci beaucoup et bonne continuation.

Jihen Sassi, Iset mahdia
★★★★★ Written by Kelly Lyons on November 30th, 2023

Six Sigma Institute makes completing certifications straightforward! The study material was very comprehensive and really helped with preparing for the test!

Kelly Lyons, Quality Director - PRIDE Industries
★★★★★ Written by Emin Khalilov on November 26th, 2023

The courses were very helpful, easily understandable, and provided a thorough understanding of Six Sigma principles.

Emin Khalilov, Warehouse supervisor
★★★★★ Written by Shakir Taylor on November 16th, 2023


Shakir Taylor, U.S. Military
★★★★★ Written by Saden on November 3rd, 2023


★★★★★ Written by Miroslav Jaščur on November 1st, 2023

Thx for professional and qualified methods for getting the certification.

Miroslav Jaščur, Process Engineering at KAMAX
★★★★★ Written by Fernando B. Custodio on October 21st, 2023

5 Stars! Great experience, thank you.

Fernando B. Custodio, Sr Equipment Engineer
★★★★★ Written by Joey Ortega on October 20th, 2023

Certifying as Six Sigma Black Belt was a great learning experience with Six Sigma Institute. It is a trustworthy brand, good and clear study material. After achieving my Green Belt certification few years ago this is a next level of achievement in my career to expand my knowledge and apply continuos improvement concepts. I am happy with the entire process, which helped me achieve my career goals and also enhance my skills.

Joey Ortega, Mfg Equipment Maintenance Planner JNJ
★★★★★ Written by Megan Ibanez on October 17th, 2023

This was great to follow along at your own pace. Wonderful content.

Megan Ibanez, Information Technology
★★★★★ Written by Tg on October 10th, 2023

I highly recommend sixsigma-institute.

★★★★★ Written by Vishal on October 7th, 2023

The exam structure is great. I was already a black belt and was looking for Master Black Belt Certification. I came across this organisation, I am glad to inform you that I cleared my MBB exam in first attempt. I definitely recommend this institute to everyone. They have very reasonable and pocket friendly price.

Vishal, Manager
★★★★★ Written by Tonn Chomrouen on September 20th, 2023

All great during the training. Case studies have been also really perfect!

Tonn Chomrouen
★★★★★ Written by Fobah Ethy on September 14th, 2023

Really Great program

Fobah Ethy
★★★★ Written by Abdulrahman Al Alhasaniyyah on September 12th, 2023

Good course.
I really liked it.

Abdulrahman Al Alhasaniyyah, SDAIA
★★★★★ Written by Tywan Mcdavid on September 7th, 2023

I appreciate International Six Sigma Institute and the Quality of all there programs. Learning material is easy to follow and prepares you for the test. Overall Great!

Tywan Mcdavid, Project Manager
★★★★★ Written by Bernadette Hilario on August 1st, 2023

Nice work.

Bernadette Hilario
★★★★★ Written by Scott Perrotta on July 25th, 2023

I enjoyed the certification process and couple that with my studies and history using Six Sigma I was excited to complete this certificate.

Scott Perrotta, Vice President Operations
★★★★★ Written by Keith on July 22nd, 2023

Excellent course and great training to prepare.

Keith, Production Manager
★★★★★ Written by Akin Isaac Osa Eloh on July 21st, 2023

This is so amazing as the Training on Lean Six Sigma Black Belt was demystified by the Talented well to do trainers. Thanks

Akin Isaac Osa Eloh, Oil Mill Maintenance Engineering Manager
★★★★★ Written by Fabrice Vumba Malale on July 10th, 2023

I have found very interesting!

Fabrice Vumba Malale, Mining operations foreman
★★★★★ Written by Cristian on July 8th, 2023


Cristian, Project Manager
★★★★★ Written by Daniel Akpan on July 4th, 2023

Supportive staff, efficient system, resourceful course content, and at affordable prices.

Daniel Akpan, Business Analyst
★★★★★ Written by Kyo Ueyama on July 1st, 2023

5 stars for Institute

Kyo Ueyama, Audit Division General Manager
★★★★★ Written by Mohammad Faisal Salapuddin on June 28th, 2023

This is a an exceptionally well designed program especially for full time employees. We can definitely explore and venture on professional development programs with such courses. Now, it has widen my knowledge on six sigma processes and be confident in using it in our future projects!

Mohammad Faisal Salapuddin, Nursing Quality
★★★★★ Written by Georgios Karampatos on June 26th, 2023

I am very satisfied about this course.

Georgios Karampatos, Energy & New Technologies Supervisor, AB Vassilopoulos Single Member S.A. (Ahold Delhaize Group)
★★★★★ Written by Ilija on June 18th, 2023

Easy, Straightforward and well-explained process. You get 100% assistance on your way and its worth every minute.

Ilija, WFM
★★★★★ Written by Olamzy Hill on June 9th, 2023

Good book/training material. Ideas are well presented compared to other training institutions out there. Overall, freat content! Excellent value for money paid. I took CSSGB Certification at a relatively cheaper price compared to other Certification bodies out there.

Olamzy Hill
★★★★★ Written by Shekhar Kumar on June 5th, 2023

Great Course! Easy to follow and worth the time to take!

Shekhar Kumar, ishwar raj beverages pvt ltd
★★★★★ Written by Regidor Role on June 3rd, 2023

This is awesome experience for me, a challenge and great deal as part of SSI family I feel blessed because the time when I passed the CSSBB, that's sign of next positive journey in my career as a QC Manager. SSI is a highly recommended for your professional certification needs. Thank you!

Regidor Role
★★★★★ Written by Josue Ngiesu on June 2nd, 2023

It’s a good experience to learn and get this six sigma certificate, I will encourage others to do and learn here, it's easy and qualified.

Josue Ngiesu, Operational excellence General manger assistant
★★★★★ Written by Michael Yeo on May 26th, 2023

Great exposure to Six Sigma process improvement and DMAIC. Definitely a good exposure to knowledge in project management. Thumbs up!!

Michael Yeo
★★★★★ Written by Cristian Monge on May 21st, 2023

Excellent course

Cristian Monge, Project Manager
★★★★★ Written by Michel on May 16th, 2023

Very good course with high quality course material. The certification exam is demanding but there is enough time to complete and anyone who has practiced diligently can pass it.

★★★★★ Written by Muhammad Hunain on May 10th, 2023

Course structure is great I recommend everyone to get enrolled in this institute for six sigma certification.
Thank you

Muhammad Hunain
★★★★★ Written by Animesh on May 7th, 2023

Excellent and easy to understand study material provided by the insititue. The examination and certification process is speedy and best. I would recommend this to everyone who needs advancement in their professional career.

★★★★★ Written by Kyo Ueyama on May 7th, 2023

International Six Sigma Institute’s Training is a Very Good program.

Kyo Ueyama, Audit Division General Manager
★★★★★ Written by Anupam Kumar Mishra on April 29th, 2023

Great course. Gave complete insight of the process

Anupam Kumar Mishra, Factory Manager, Olam International
★★★★ Written by Christopher Leroux-gagnon on April 23rd, 2023

Quick, easy and affordable, with a very welcoming platform and integral experience, from study to post-certification referencing.

Christopher Leroux-gagnon, Operator
★★★★★ Written by Tara Hurd on April 22nd, 2023

This was an enriching and awesome experience. I have completed 2 certifications through them and would highly recommend anyone wanted to do so to use their services.

Tara Hurd
★★★★★ Written by Seaon on April 22nd, 2023

Great courses and great materials!!

★★★★★ Written by Chris Arriaga on April 21st, 2023

Great course with a lot of valuable info.

Chris Arriaga
★★★★★ Written by Yacoub on April 15th, 2023

The way they take care of users or others whom are interested in their courses is something appreciated; this not my first course with this institute and won’t be the last, these courses can be an added value to anyone who’s interested; also can add new knowledge to anyone who wants to develop himself.
Thanks for the team behind this institute,

★★★★★ Written by Gabriel Neagu on April 11th, 2023


Gabriel Neagu, Sr Software Developer & Country QM
★★★★★ Written by Dr. Isam Ateig on April 4th, 2023

As a physician Consultant Pathologist and Quality, Safety and Risk management Consultant, I did really benefited from the Six Sigma Revealed Training Book. The book is written in a very clear, simple, easy to understand language with excellent and practical examples. The content of the book covers all areas of Six Sigma.
Thanks to the International Six Sigma Institute and special thanks to Yeliz Obergfell for her continuous support and encouragement.
Dr. Isam Ateig.

Dr. Isam Ateig, Healthcare Consultant
★★★★★ Written by Luis Jimenez on March 29th, 2023

Great certification program that will open doors for future work opportunities.

Luis Jimenez
★★★★★ Written by Mohammed Amin Saeed on March 25th, 2023

Very positive and easy to move with the course.

Mohammed Amin Saeed
★★★★★ Written by James Kim on March 18th, 2023

The structure of the International Six-Sigma Program is well-organized and easily comprehensible, making it accessible to anyone seeking certification and wanting to learn the program.

James Kim, President
★★★★★ Written by Vladislav Gvozdev on March 17th, 2023

Everything is totally fine

Vladislav Gvozdev
★★★★★ Written by Mk Youngblood on March 12th, 2023

Great program and easy to follow!

Mk Youngblood, ACRT Pacific LLC
★★★★★ Written by Madhu M on March 10th, 2023

Your website did a great guidance, connecting you people & make my work so easy.
Always i do remember your support. Once I want to say you thanks a lot "Yeliz Obergfell".

Madhu M, Sr Executive human resouces, Moog Technology Center
★★★★★ Written by Sondos Euchi on February 27th, 2023


Sondos Euchi, Head of supplier quality management
★★★★★ Written by Wesley on February 23rd, 2023

This is very helpfull platform for learning and growing up in your career.

★★★★★ Written by Sean Westbrook on February 15th, 2023

I have a background in six sigma and this black belt course gave me new insights into the six sigma process. I feel even more confident in leading future projects with my consulting business now. Highly recommend International Six Sigma Institute to get the knowledge and background essentials you need to be a six sigma expert !!

Sean Westbrook, Founder of Westbrook Warehouse Solutions
★★★★ Written by Mohammad Minhazur Rahman on February 14th, 2023

It is good and help us for improvement

Mohammad Minhazur Rahman
★★★★★ Written by Hacer Aydogdu on January 30th, 2023

It has been a great pleasure to have this course as it is well-summarized content with concentrating on the most critical and strategical decision making/interpreting systems.
Thanks for this opportunity that enabled me interpreting the information and experience which i have gained in years.

Hacer Aydogdu, DXC Luxoft
★★★★★ Written by Mirza Manirajah Bin Abdullah on January 24th, 2023

I have been working for the past 28 years in US based multinational companies in Malaysia. I was holding the position of a “Head of Production, Operations and Manufacturing Excellence”. As a Head of Production, Operations and Manufacturing Excellence, I am in-charge of overall production activities and Lean-Six Sigma initiatives. I was a Black Belt at early stage of my career and became a Lean-Six Sigma Coordinator or so-called Champion while working for this multinational companies. I have almost about 24 years of Lean-Six Sigma experience. I have done many cost saving projects and saved millions of UDS$ for the companies that I worked for. Getting a MBB certification from your organization is a great experience for me. Currently I am a consultant, trainer and Lecturer and have almost 7 years of experience.

Mirza Manirajah Bin Abdullah, Consultant, Trainer & Lecturer, RiverBank Academy
★★★★★ Written by Dominic on January 22nd, 2023

Lean six sigma gives the platform to build project and work in a simple and relax way for profitability.

Dominic, Anglogold Ashanti Iduapriem Mine
★★★★★ Written by Danil on January 17th, 2023

Six Sigma Institute is a learning platform that provides effective way to develop key areas of expertise.

★★★★★ Written by Dave Lapradd on January 5th, 2023

Class is affordable. Exam is not difficult but very thorough. I would definitely recommend.

Dave Lapradd
★★★★★ Written by Aleh Akel on January 1st, 2023

Fantastic program!!!

Aleh Akel, Retail management
★★★★★ Written by Steven Dinata, Nse, Macp, Edge Ai., Csswb, Cssyb, Clsswb, Clssyb, Cprm. on December 30th, 2022

Thank you six sigma institute for providing six sigma certification services. Today is my happy day because I successfully passed the CSSGB (Certified Six Sigma Green Belt) certification exam. The teaching material is really high quality and really spurred me on in exploring six sigma.

Steven Dinata, Nse, Macp, Edge Ai., Csswb, Cssyb, Clsswb, Clssyb, Cprm.
★★★★★ Written by Eric Musungayi on December 28th, 2022

Excellent and simple.

Eric Musungayi
★★★★★ Written by Oswald Sahabandu on December 22nd, 2022

I have over two decades of work experience in the financial services trade and has hold number of senior positions in the afore said trade.
I am a professional in my streem and clams for a MBA and number of other Higher Diplomas relavent to Marketing and Management, also a Certified Professional Marketer in Asia.
I was very much keen on enhansing my present knowledge on Six Sigma creteria and to become a certified Six Sigma Professional. While I, was hesitantly perusing through all the avenues conveniant for me to follow the Six Sigma Certification, due to my LUCK I, came to know about the INTERNATIONAL SIX SIGMA INSTITUTE, which was some thing like a blessing in disguise.
I got the book let of the Institute pertaining to SIX SIGMA course studies and it was a wounderful piece of litreture which was included everything needed to enhance the know how on SIX SIGMA process. It was a fantastice book that really inspired me more on the programe.
I think, SIX SIGMA INSTITUTE is the best place for any one who is interested in following the course and the support they extend is excellent.
Oswald W. Sahabandu.
Six Sigma Student at International Six Sigma Institute.

Oswald Sahabandu, Consultant part time
★★★★★ Written by Alireza Naderi on December 15th, 2022

Very clear and straightforward. Perfect references and material contents. Keep the good services going.

Alireza Naderi
★★★★★ Written by David Baiphisi on December 14th, 2022

Great study materials and wonderful learning experience

David Baiphisi
★★★★★ Written by Johnny on December 3rd, 2022

The course materials were valuable and easy to understand for the six sigma Certification. Awesome.

★★★★★ Written by Ojore Solomon A on December 2nd, 2022

The most amazing institute

Ojore Solomon A
★★★★★ Written by Abdoulie on November 25th, 2022

Great course content, excellent student support and an amazing career booster to me! Can't thank you enough!

Abdoulie, Manager
★★★★★ Written by Craig Jutte on November 22nd, 2022

Fantastic course highest honors

Craig Jutte, Yes
★★★★★ Written by Louis on November 12th, 2022

Fantastic program!!!

★★★★★ Written by Maurece Harris on November 1st, 2022

Awesome Training and Great Certification

★★★★★ Written by Loris Mansiamina on October 24th, 2022

5-Star Programs and Company!

Loris Mansiamina, Personal
★★★★★ Written by Aqsa Khan on October 22nd, 2022

Awesome. Thanks.

Aqsa Khan, Tata Consultancy Services
★★★★★ Written by Aqsa Khan on October 22nd, 2022

Glad to get CSSMBB™ Certified. Thanks.

Aqsa Khan, Tata Consultancy Services
★★★★★ Written by Aqsa Khan on October 22nd, 2022

Glad to get CSSBB™ Certified. Thank you.

Aqsa Khan, Tata Consultancy Services
★★★★★ Written by Aqsa Khan on October 22nd, 2022

It's awesome. Thank you...

Aqsa Khan, Tata Consultancy Services
★★★★★ Written by William Aimes on October 18th, 2022

This training is excellent. I am glad to have had this experience with a phenomenal institute.

William Aimes
★★★★★ Written by Dirit on October 18th, 2022

Extremely lengthy information provided in a simplified manner.

★★★★★ Written by Raul Alfonso Suarez Lira on September 29th, 2022

Six Sigma Institute offer a value added process to get Six Sigma Know-how in a Simple and High Effective Manner.
I sincerely appreciate this channel to express my entire satisfaction and recognition to the International Six Sigma Institute.
Best Regards Raul Alfonso Suarez Lira

Raul Alfonso Suarez Lira, Quality Manager, Panasonic Automotive
★★★★★ Written by Aqsa Khan on September 27th, 2022

I would like to thank Yeliz Obergfell for the guidance and support in achieving this amazing Certified Six Sigma Green Belt (CSSGB™) Certification from International Six Sigma Institute™.

Aqsa Khan, IT Analyst, Tata Consultancy Services
★★★★★ Written by Boma Egesi on September 22nd, 2022

Amazing learning experience. Here one gets value for your money.
Please keep it up. After all the waste of time and resources I found your institute.
Thank you for making my transition to IT very smooth. Very impressed!

Boma Egesi
★★★★★ Written by Ramon Peros on September 22nd, 2022

Mrs. Yeliz Obergfell is very active in terms of attending to my request and inquiries which has given me the feeling of VIP treatment.

Ramon Peros, R&D Manager, Steam Box Corporation
★★★★★ Written by Ashfaque Ahmed on September 21st, 2022

Amazing, and no stress!

Ashfaque Ahmed, CEO, AK Khan Penfabric Company Ltd.
★★★★★ Written by Babatunde D0lapo on September 6th, 2022

I am very glad to have started this programme now!

Babatunde D0lapo, Packaging Official Eterna Plc
★★★★★ Written by Harjot Gill on September 6th, 2022

Informative and fast!

Harjot Gill
★★★★★ Written by Rajavel S on September 3rd, 2022

It's a very result-oriented and focused syllabus to reach business goals, increase productivity and reduce wastes of all orgazations. I wish all business leaders completed your programs and learnt from you.

Rajavel S, Head Manufacturing
★★★★★ Written by Jared F. on September 2nd, 2022

Very good experience. Plenty of information for a promising test result. I will return for more certifications right here at the Six Sigma Institute!

Jared F., General Foreman
★★★★★ Written by Babatunde Dolapo on September 1st, 2022

I joined this Institute. Very satistified with the training and certification test.

Babatunde Dolapo, Packaging assistant Eterna Plc
★★★★★ Written by Nikki Bell on August 30th, 2022

The materials were easy to understand and I felt prepared to take the Green Belt test. I passed on the first try and was able to start work on a Black Belt right away.

Nikki Bell, Solutions Engineer, Certn
★★★★★ Written by Surya on August 22nd, 2022

Good Knowledge and extraordinarily helpful concepts for careers.

Surya, Consultant
★★★★★ Written by Mustafa Hashash Bana on August 13th, 2022

It is a great course

Mustafa Hashash Bana, Trainer
★★★★★ Written by Marlon Mohammed on August 2nd, 2022


Marlon Mohammed
★★★★★ Written by Ayoub El Bahmani on July 30th, 2022

Great organization and professionals!

Ayoub El Bahmani, Continuous Improvement Manager
★★★★★ Written by Marlon Mohammed on July 28th, 2022

Excellent I will be using this institute training in the future again.

Marlon Mohammed, Toylin Limited
★★★★★ Written by Peter Monsivais on July 28th, 2022

Course was all online and self paced, easily completed in my own time and at my desk. I recommend to all my peers.

Peter Monsivais, US Army
★★★★★ Written by Heather Khan on July 26th, 2022

Easy to understand. Excellent course

Heather Khan
★★★★★ Written by Shailesh K R on July 24th, 2022

I appreciate the work put in by International Six Sigma Institute and Yeliz Obergfell towards helping people like me to get Certified Six Sigma Master Black Belt with affordable price and in quick time.

Thank you. God bless.

Shailesh K R, Manipal Institute of Technology
★★★★★ Written by Asma Ahmed Ibrahim Al Balushi on July 7th, 2022

Six sigma gives a clear understanding how element errors occurred in the organization and how to improve the process to satisfy the customer and increase the profit…thank you for sharing six sigma E book it is a useful book to improve the students skills and the easiest way to share knowledge with colleagues.

Asma Ahmed Ibrahim Al Balushi, Bank Muscat
★★★★★ Written by Guilherme Silva on July 5th, 2022

This was my 2nd certification with you guys and I it will not be the last one. Thanks for all the support you provide along the way.

Guilherme Silva, Service Desk Manager
★★★★★ Written by Walid Kerbaje on July 4th, 2022

Six Sigma Institute had been wonderful with great material and amazing learning experience!! Next Black Master...

Walid Kerbaje
★★★★★ Written by Carl Evens Plaisimond on July 4th, 2022

Just amazing !!!

Carl Evens Plaisimond
★★★★★ Written by Asma Ahmed Al-balushi on July 3rd, 2022

That was the most useful training I’ve ever attended, and I learned lotz from this course! Thank you Yeliz Obergfell and the tram- you are amazing!

Asma Ahmed Al-balushi, Marketing and business analytics assistant
★★★★★ Written by Jibin Kolathu Mathews on June 22nd, 2022

I was fortunate to find good and reputable Institute who dedicated to your sucess and commercially drive businesses to next level in Quality Management and Lean processes.

Jibin Kolathu Mathews, Director of Maintenance
★★★★★ Written by Madellene Peñaflor on June 15th, 2022

Six Sigma Institute is really a great platform. It is easy to learn and very practical. It is also very affordable. During the journey of the learning, as I go through their book/manual, it really makes me appreciate the usefulness of this topic, not just for me individually, but to every organization in general as well. Thanks Six Sigma Institute and to Ms. Yeliz Obergfell ✨ =) <3

Madellene Peñaflor
★★★★★ Written by Alejandro Lazala on June 12th, 2022

Great Experience!

Alejandro Lazala, Managing Director
★★★★★ Written by Chinedum on June 10th, 2022

Straight to the point preparation

★★★★★ Written by Casey Rivens on May 30th, 2022


Casey Rivens
★★★★★ Written by Saman Mendis on May 28th, 2022

Thank you for the great learning opportunity

Saman Mendis
★★★★★ Written by Giancarlos on May 28th, 2022

Website is awesome! There’s plenty of study material and extra help that the website provides. The process wasn’t complicated and it was easy to work with. Loved it !!

★★★★★ Written by Muhammad Waseem Irshad on May 27th, 2022

Very detailed trying material. Easy to follow instructions and exam process was smooth.

Muhammad Waseem Irshad, Quality Manager
★★★★★ Written by John Wilson on May 26th, 2022

Simply marvellous!

John Wilson
★★★★ Written by Dellion on May 22nd, 2022

Great course, and easy to follow!

★★★★★ Written by Kyembe Steve on May 18th, 2022

Six sigma is a robust methology of management… learning through this program is effective for good mastery… One word : A.W.£.$.O.M.€…

Kyembe Steve
★★★★★ Written by Melchiorre Chiarenza on May 17th, 2022

It was an amazing experience and the course information was amazing. Concise, clear course ware and information made preparing for the exam stress free.

Melchiorre Chiarenza, Director of Emergency Response Management
★★★★★ Written by Walter on May 17th, 2022

Is the best way to get certified

★★★★★ Written by Terrill Tyler on May 16th, 2022

Great program and I can't wait to learn the next level of Six Sigma.

Terrill Tyler
★★★★★ Written by Samanth Tiwari on May 14th, 2022

My journey with the Six Sigma Institute had been wonderful, amazing learning experience!!

Samanth Tiwari, Agile Business Analyst
★★★★★ Written by Eduardo Roberto Batista on May 13th, 2022

Great course. The traiing book and other materals are very useful and practical.

Eduardo Roberto Batista, course coordinator
★★★★★ Written by Chigozie Otuonye on May 6th, 2022


Chigozie Otuonye, Logistics team leader
★★★★★ Written by Tebogo Baeng on April 6th, 2022

Absolutely amazing training materials and certification programs!

Tebogo Baeng
★★★★★ Written by Chigozie Otuonye on April 2nd, 2022

Great experience

Chigozie Otuonye, SGT (p) A CO,Section NCO
★★★★ Written by Vishnu Prabhu Kathirvel on March 12th, 2022

good experience

Vishnu Prabhu Kathirvel
★★★★★ Written by Gregory W. on March 12th, 2022

This affordable course provided me with a foundation of understanding of Six Sigma principles and tools so that I will be ready to apply them to projects in the future. This was a painless and valuable way to obtain my CSSGB and add value to my resume and toolkit.

Gregory W., Training Supervisor
★★★★★ Written by Dedi Suhendi on March 9th, 2022

Great Experience

Dedi Suhendi, Maintenance
★★★★★ Written by Jorlan Mercado on March 8th, 2022

That was a great and informative program!

Jorlan Mercado, Trainer
★★★★★ Written by Ashaki Sorrell on March 3rd, 2022

The training equipped me to lead projects that will impact my organization's productivity and process, which in turn impacts the bottom-line. I appreciated the straightforward, thorough materials.

Ashaki Sorrell, Project Manager
★★★★★ Written by Hicham on February 8th, 2022

Great experience! Service was user-friendly and convenient.

★★★★★ Written by Santosh Shelar on February 7th, 2022

I am Mechanical Engineer by profession. I have completed recently Six sigma Master Black belt certification from International Six Sigma Institute. Format of course is very structured & study material is easy to understand fundamentals.

Thanks to Mrs. Yeliz Obergfell and her team for supporting with all required information.

Santosh Shelar, Mechanical Engineer
★★★★ Written by Trenthony Simms on February 6th, 2022

Great Service and everything was user-friendly and convenient….

Trenthony Simms
★★★★ Written by Rahul Ghimire on February 2nd, 2022

It was effective and is a great program for any management position person.

Rahul Ghimire
★★★★★ Written by Derick Opoku on February 1st, 2022

It was a good call to do this program! Thank you for building such an effective service which is clearly the most affordable in its segment.

Derick Opoku
★★★★★ Written by Anthony Mannarino on January 29th, 2022

This was a very straightforward and pleasant experience. The program sticks to what is important for your knowledge base and avoids the superfluous items often found in other institutions. If you are self motivated this program is for you. You get what you need efficiently and concisely. This is the Six Sigma Program that actually follows the Six Sigma principles. What you need for the job and nothing else!

Thanks for your dedication to bringing Six Sigma to many of us.

Anthony Mannarino, Physician
★★★★★ Written by Christopher on January 29th, 2022

Great process and it was very straightforward. The study material helped me learn a lot.

★★★★★ Written by Ali Abouabbas on January 28th, 2022

Indeed, this is a good opportunity for our students and we provide them excellent skills in Six Sigma and other relevant Lean Six Sigma domains. Keep up the great work!

Ali Abouabbas, CEO of Canadian Development Center for Immigrants
★★★★★ Written by Dean Haughton on January 24th, 2022

An amazing organization with phenomenal team members. I truly appreciate your help and will be back for further certifications.

Dean Haughton, Customer Experience Executive
★★★★★ Written by Rey on January 23rd, 2022

Great course, it took some time but it’s worth it!

★★★★★ Written by Heather Marks-hall on January 23rd, 2022

The International Six Sigma Institute made it soooooooo effortless to gain Certification in Lean Six Sigma Green Belt (despite my busy schedule)...looking forward to joining and taking their Lean Six Sigma Black Belt Program!

Heather Marks-hall
★★★★★ Written by Paul Mcnair on January 22nd, 2022

Took me awhile to finally focus on this opportunity but now I am glad i did it

Paul Mcnair, Supervisor, US Navy
★★★★★ Written by Volkan Yildirim on January 21st, 2022

Amazing organization with awesome team members. I truly appreciate your help and will be in touch for further certifications.

Volkan Yildirim, Financial Analyst
★★★★★ Written by Mohamed Ibrahim on January 20th, 2022

Thanks for helping me to take the Six Sigma certificate.

Mohamed Ibrahim, Production manager
★★★★★ Written by Ammar Ammar on January 20th, 2022

Great study materials and thought-provoking and real-life-oriented examination to certify. Amazing service and totally recommended.

Ammar Ammar, Operations manager at ICS pre stressing expand metal components mnfg
★★★★★ Written by Tchabassi Yannick Rostand on January 18th, 2022

Thank you for giving me this opportunité to express myself. Training on the six sigma black belt will be very useful in my work environment. As technologies evolve today, maritime costs increase, competition takes to hold the cost of production and the selling price does not change.

The question today is how to anticipate the Vision.

And International Six Sigma Institute has been doing a great job to serve its audience. Totally appreciated!


Tchabassi Yannick Rostand, Head of equipment maintenance group
★★★★★ Written by Hilbert David Kwedi on January 17th, 2022

Fantastic certification programs!

★★★★★ Written by Iyanu Adesuyan on January 4th, 2022

Amazing experience

Iyanu Adesuyan, WACOT Ltd (Deputy Quality Manager)
★★★★★ Written by Oriloye Olumide on December 31st, 2021

Great Programs! Totally Recommended…….

Oriloye Olumide, Manager
★★★★★ Written by Ashish Bharti on December 26th, 2021

I'm moving to the United States in a few months. So I researched different organizations offering Six Sigma Certifications. I found that International Six Sigma Institute really stands out due to their very affordable and globally recognized certification options. Payment, exam and getting the certificate was very straightforward. I highly recommend International Six Sigma Institute to anyone who is looking for getting Six Sigma certifications.

Ashish Bharti, Deputy Manager, Bharat Heavy Electricals Ltd.
★★★★★ Written by Roberto Villavicencio on December 24th, 2021

Truly appreciate all the kind support provided by Yeliz, i can just say excellent program.

You do deserve 5 Stars!

Roberto Villavicencio, Senior Coach - BPO industry
★★★★★ Written by Ravinder Singh on December 20th, 2021

I have found this certification course is great for career ahead.

Ravinder Singh, csbp
★★★★★ Written by Manojlo Vujanovic on December 18th, 2021

Excellent Course! Thank you.

Manojlo Vujanovic
★★★★★ Written by Sunadi on December 16th, 2021

I'am really bery happy learning from Six Sigma Institute, and which great success to everyone with the International Six Sigma Institute.

Sunadi, Quality Assurance Manager
★★★★★ Written by Ahmed R Sakti on December 9th, 2021


Ahmed R Sakti, Sr Engineer
★★★★★ Written by Ambar Gupta on December 9th, 2021

Before commencing on my journey for a Six Sigma Black Belt Certification, I browsed through many sites, got in touch with many institutions and finally zeroed in on International Six Sigma Institute finding the first step ie an ebook on Six Sigma which everybody can download, read it and know what Six Sigma is all about. Its a detailed, more than a 500 page ebook which helps a first timer like me to understand the subject and make a decision. This book is free for all which helps people who are eager to learn but might be short of resources and....After a detailed study and in the meantime I kept on receiving regular updates and mailers in my Gmail account and the related offers. I responded to one of those mails from Yeliz Obergfell requesting for help on the pricing and immediately received a response with a link to register myself which I did and completed the assessment test with the result and the soft copy of the Certificate along with the badge which can be shared on your social media accounts.

The overall process with International Six Sigma Institute was so smooth, particularly the ebook which has its second edition now and you can read it thoroughly to understand the subject before taking the assessment and related certification.

I recommend everyone to read their ebook and make their Six Sigma Certification with the Six Sigma Institute,

Happy learning!

Ambar Gupta
★★★★★ Written by Poonam M on November 24th, 2021

Excellent course!

Poonam M
★★★★★ Written by Justin Milam on November 23rd, 2021

Great information and its not rushed. You’re given your time to learn and take your exam.

Justin Milam
★★★★★ Written by Davide Morelli on November 17th, 2021

Corso ben strutturato, argomenti chiari e coerenti

Davide Morelli, HSE Manager _ RSPP
★★★★★ Written by Imran Shariff on November 15th, 2021

If you check on the internet, you will find 100s of sites offering sixsigma certification. And you wont find an option for cheap 100s & 1000s of $. The quality of training vary, but you wont be sure to invest huge capital. There is plenty of resources and videos available but certification is too expensive and you risk losing the money. The complexity of the assesment is almost the same. Another fact is that you are investing so much money with no assurance of ROI or jobs. This ISSI certificate assesment costs under $100 & their material is quite detailed to pass any BB assesment. However, dont stop at this material or this certificate, continue researching, pick projects, apply tools then you will get mileage of this value for money certificate. Internationl Six Sigma Institute is highly recommended!

Imran Shariff
★★★★★ Written by Robert Burgos on November 15th, 2021

Great Program

Robert Burgos, Instructor at the Naval Undersea Medical Institute
★★★★★ Written by Oksana Ismayilova on October 24th, 2021

Super! I am obliged to you for your great work!

Oksana Ismayilova, Customer Experience Professional
★★★★★ Written by Ana M Pérez Gordillo on October 24th, 2021

Thanks so much for give this opportunity to people like me !! Very easy way to get certified , very useful materials to get it done !! The way is presented is the best kept it up! I am going for my next step now Green Belt !!

Ana M Pérez Gordillo, Human Services Program Analyst , Florida Department of Heslth
★★★★★ Written by Chandra Sekhar Rao Nakka on October 6th, 2021

Excellent, one of the best in the world of its kind and support globally with effective communication and greatest deal of humanity!

Chandra Sekhar Rao Nakka
★★★★★ Written by John Paul on September 25th, 2021

Well written, informative, and easy to understand curriculum. I would definitely recommend to others trying to learn about the world of six sigma and to get certified.

John Paul
★★★★★ Written by Oshane on September 16th, 2021

I appreciate the fact that reading material was provided that can tremendously help you with your studies and you will always have access to it to refresh your memory. Great course!

Oshane, Supply Chain Management
★★★★★ Written by Byron on September 6th, 2021

This is a great organization that helped me invest in my career and future. It is very affordable, flexible and convenient! I definitely recommend them.

★★★★★ Written by Rahul Shankar on September 2nd, 2021

Excellent course for building your career with extensive knowledge.

Rahul Shankar, Manager, Fidelity International
★★★★★ Written by Pritam Kumar Panda on August 18th, 2021

Thanks to International Six Sigma Institute and Yeliz Obergfell for providing such an excellent course to be now capable enough to transit to industries/companies (Ph.D.'s/researchers like me). The course was excellent and able to learn a lot of ability to drive process thinking to identify and fix opportunities, define critical performance measures, and improve overall performance. I think I am now ready to swiftly shift/transit to industries.

Pritam Kumar Panda, PhD Student, Uppsala University
★★★★★ Written by Hemin Saeed on August 10th, 2021

I would like to say Thanks to six sigma institute for providing free training materials really helped me to pass the exam and learn new knowledge and update my skills

Hemin Saeed, System Admin Operations Manager
★★★★★ Written by Taha Al-amour on August 9th, 2021


Taha Al-amour, IPC Manager
★★★★★ Written by Zhafran Aizat Zakaria on August 8th, 2021

Flexible! Low cost! No bureaucracy!

Zhafran Aizat Zakaria
★★★★★ Written by Manoj Balakrishnan on July 31st, 2021

I recommend International Six Sigma Institue to my friends. Unlike others, they offer the Training and certification at an affordable price and the Certficates never expire.

Manoj Balakrishnan, Sr.QAQC Engineer
★★★★★ Written by Samanth Prasad Tiwari on July 22nd, 2021

CSSGB Course is awesome, loved every bit of it.

Samanth Prasad Tiwari, Senior Project Manager
★★★★★ Written by Algrish Williams on July 22nd, 2021

The process to start and conclude this course was fantastic. The Six Sigma Institute was with me every step of the way, their material was very understandable to follow and ensured my success with the exam.

Algrish Williams, City Manager/Senior Advisor
★★★★★ Written by Suresh D on July 13th, 2021


Suresh D
★★★★★ Written by Mohamed on July 7th, 2021

Thanks 6 sigma Institute
Good experience

★★★★★ Written by Nicholas Tancredi on July 7th, 2021

Excellent!!! I have taken three certifications from the Six Sigma Institute, and plan to take more.

Nicholas Tancredi
★★★★★ Written by Nahal Islam on July 2nd, 2021

Love the material. Great examples and to the point. Great course overall!

Nahal Islam, Quality Manager, Defender Safety
★★★★★ Written by Stefan Kaelin on June 21st, 2021

Thank you Erkan Sutculer, This was a great program! I really appreciate your efforts for the training.

Stefan Kaelin
★★★★★ Written by Dedy Kwartono on June 19th, 2021

This is first time for me to joint online examination since the COVID-19 pandemic. After the exam, I got an email from Yeliz that I passed the exam results, I'm very satisfied with my results, because I haven't taken the exam for a long time, especially online like now.

Dedy Kwartono, Continuous Improvement Manager
★★★★★ Written by Vivek Yadav on June 12th, 2021

Excellent Training material and easy steps to complete the registration process and examination.

Vivek Yadav
★★★★★ Written by Anisul Ansari on June 11th, 2021

The entire plan, framework, superb training and certification program worth getting five stars.

Anisul Ansari, Top Form International Limited
★★★★★ Written by Md Mahmud Akhter on June 9th, 2021

Hi I am Akhter, Bangladeshi. I have been working in Vietnam as Engineering Manager for more than 3.5 years with renowned MNC. CSSBB makes me confident to apply DMAIC which is a step by step systematic mathematical approach. The practical problem converted to statistical problem, then apply DMAIC right tool(s) to analyze or Hypothesis test to decide reject or fail to reject H0, and finally statistical problem convert to practical solution. The book is helpfull, besides this Six Sigma Institute has a big panel from where can be get help while implementing Six Sigma approach to the workplace. I recommend the personnel who are especially related to manufacturing, can obtain the certificate and start add value to your organization.

Thank you!
Mahmud, Industrial Engineerining
Crytal Martin (Vietnam) Company Ltd, Vietnam

Md Mahmud Akhter, Manager, Industrial Engineering, Crystal Martin (Vietnam) Company Ltd., Vietnam
★★★★★ Written by Naveen Nandi on June 6th, 2021

Very Professional yet simple

Naveen Nandi, Director (Quality)
★★★★ Written by Michael on June 4th, 2021

The course material is great and I'm sure I'll refer to the text for future guidance as the need arises. The price was good compared to alternatives. The real value stems from the material, price and exam.

★★★★★ Written by Praveen Kumar D on June 2nd, 2021

It’s Great for affordable price and the Materials cover all details and up-to-date contents.

Praveen Kumar D, Project Manager
★★★★★ Written by Alexa Hathazi on June 1st, 2021

Clearly 5 Stars!

Alexa Hathazi, HR expert
★★★★★ Written by Kennedy Ochieng on May 10th, 2021


Kennedy Ochieng, QMS Officer
★★★★★ Written by Ali Alhassan on May 8th, 2021

The training materials and certification tests have been very enriching. Thank you very much for your great support and service.

Ali Alhassan
★★★★★ Written by Trichy Madhavan Sridharan on May 7th, 2021

Great course, nice coverage of topics. Very nice. Recommended or everyone!

Trichy Madhavan Sridharan
★★★★★ Written by Brandy on May 3rd, 2021

Great option for those seeking Six Sigma certification. I looked at different sites and companies for certification. This site offered an affordable route without the extreme sales pitch. Six Sigma certification is good no matter where you get it. Don’t be fooled by expensive priced training courses elsewhere. You’ll regret spending more somewhere else when everyone is getting it done here.

★★★★★ Written by Sathidpong Permrit on April 28th, 2021

Very interesting program!
Very great and exciting experience! The training is expertly tailored to give you everything you need to know in an amazingly simple manner- Concise and direct approach. I really love the whole experience! Everything is pure class.

Sathidpong Permrit, QA Manager
★★★★★ Written by Uzma on April 14th, 2021

It's an enabler of your career!!

★★★★★ Written by Sai Aditya Lingam on April 13th, 2021

This is a great learning institute and their work is awesome... The way courses and training are designed are amazing... Supercool institute...

Sai Aditya Lingam, SQA Engineer
★★★★★ Written by Sai Aditya Lingam on April 13th, 2021

This is a great learning institute and their work is awesome... The way courses and training are designed are amazing... Supercool institute...

Sai Aditya Lingam, SQA Engineer
★★★★★ Written by Mohammed Imran Ilmy on April 12th, 2021

I really love this method where you don't need to spend hours sitting in a class room for your certifications. The training material is awesome and provides you insight to be above a Master Black Belt. I too refer to contents from the Six Sigma Book for the training. It's great to be a part of International Six Sigma Institute, and Greetings.

Mohammed Imran Ilmy, Consultant, Manufacturing development and Continuous improvement
★★★★★ Written by Varshini Murali on April 8th, 2021

Thank you, Great Certification Program and Course Materials!

Varshini Murali, Treasury Analyst at Flex
★★★★★ Written by Dwight Wallace on April 2nd, 2021

Full support and amazing effort from Six Sigma Institute to teach Six Sigma and facilitate our way to get six sigma certifications. I am very glad to have joined as a member in International Six Sigma Institute’s community, contribute disscusions and share experiences, backgrounds and lessons learnt from countless professionals all around the world. Thank you

Dwight Wallace, Management Analysts Defense Contract Management Agency (DCMA)
★★★★★ Written by Austin Onyegbule on March 24th, 2021

Six Sgma Institute has worked assiduously and tenaciously to ensure the success of her students. This has been achieved through the "Six Sigma Revealed" book and the excellent support services rendered to the students...nothing could be better.

Austin Onyegbule, Supera Engineering Services & Consulting
★★★★★ Written by Mutaz Alabdulkarim on March 22nd, 2021

Amazing program , I really recommend it

Mutaz Alabdulkarim, CEO, Saudi Blockchain
★★★★★ Written by Tina Huffman Cerullo on March 22nd, 2021

I found the study materials, pricing and exams to be very thorough and absolutely fair. I had held a SSGB for many years and really needed a flexible well organized program to ensure my success. I would highly recommend the program.

Tina Huffman Cerullo, Director MD Anderson
★★★★★ Written by Olga Snarske on March 14th, 2021

Great book and training!!

Olga Snarske
★★★★★ Written by Lester on March 6th, 2021

Outstanding experience

★★★★★ Written by Oscar Arellano on March 2nd, 2021


Oscar Arellano, Professor
★★★★★ Written by Hussain Al Tawat on March 1st, 2021

It was a very special experience

Hussain Al Tawat
★★★★★ Written by Nugroho Adhi Susanto on February 28th, 2021

Great Certification, Great experience! Thanks

Nugroho Adhi Susanto, Production Manager, Indonesian Pharmaceutical Industry
★★★★★ Written by Jhon Leonardus Lantang on February 27th, 2021

I heard and I knew Six Sigma (DMAIC) for a long time but I haven’t had a chance to implement it in a real life project. After this training with clear guidance, methodology, directiion and step by step process with 6 days coaching from the team, I saw that these tools are very powerful in any kind of business situations. They can be aplied to improve and sustain all types of project in all industries.
Six Sigma Revealed book provided clear and simple guidance to understand and practice the Six Sigma framework.

Jhon Leonardus Lantang, Engineering Manager
★★★★★ Written by Edgar Wameyo on February 23rd, 2021

Great certification!

Edgar Wameyo, GPHBSL
★★★★★ Written by Nena Ostrogovic on February 15th, 2021

User friendly and useful

Nena Ostrogovic, ADNOC Distribution
★★★★★ Written by Lampros Kaitatzis on February 13th, 2021

Impressive service and delivery!

Lampros Kaitatzis, -
★★★★★ Written by Saifur Rahman Bhuiyan on February 8th, 2021

Excellent supportive Professional Learning Institute.

Saifur Rahman Bhuiyan, General Manager
★★★★★ Written by Dr. Aniket Saxena on February 6th, 2021

International Sis Sigma Institute, Switzerland is much beyond just an " institution "...It actually denotes a "Culture"...Culture of excellence, empowerment, & enrichment. It was an honor to receive the prestigious "Certified Six Sigma Master Black Belt" from this world class institute. Being a part of this great institution, I felt blessed. It was an awesome experience.

Dr. Aniket Saxena
★★★★★ Written by Suraweera Arachchige Chandana Jayanath on February 2nd, 2021

Its a grate thing to have chance to study to get improved knowledge and experience! It’s great thing.

Suraweera Arachchige Chandana Jayanath, PRODUCTION DIRECTOR, NEW WORLD FASHION
★★★★★ Written by Oscar Arellano on January 30th, 2021

Thank you for your support, the courses are updated and I really like the attention they provide.

Oscar Arellano, Professor
★★★★★ Written by Jorge Lara on January 26th, 2021

Examen algo difícil pero vale la pena el esfuerzo me ha servido mucho (Black Belt)

Jorge Lara, Director TI
★★★★★ Written by Geralyn Sinnette on January 24th, 2021

The process was easy and material was relevant.

Geralyn Sinnette, Accountant
★★★★★ Written by Samuel on January 9th, 2021

Thank you for providing this service and providing all necessary documentation required!
I needed to get up and running quickly on Six Sigma and the online training & testing came very usefully. I received 3 certifications in one day, and I learned a lot.

Samuel, Major Incident Manager at SCC
★★★★★ Written by Angelica Espinosa on January 2nd, 2021

Estan muy atentosy recomiendan una linea profesional de estudios a seguir.

Se comprende el material perfectamente.

Angelica Espinosa, Gerente de Gobierno de la Informacion
★★★★★ Written by Khairil Ikhsan on December 24th, 2020


Khairil Ikhsan
★★★★★ Written by Beverley on December 7th, 2020

Very interesting class. Passed the exam allowing me to be a CSSGB. Pretty cool.

★★★★★ Written by Pacôme Assi on November 28th, 2020

Support available. Effective coaching Good plateforme. Cost of certifications very accessible!

Pacôme Assi
★★★★★ Written by Edgar Wameyo on November 26th, 2020

I will recommend the training, it has all aspects of quality design, project management

★★★★★ Written by Kattia Ortiz on November 16th, 2020

Its great course!

Kattia Ortiz, Amazon
★★★★★ Written by Francisco J on November 10th, 2020

Great Experience! Best decision ever!

Francisco J, Manager
★★★★★ Written by Maryoto on November 1st, 2020

Full support and amazing effort from Six Sigma Institute to facilitate our way to get six sigma certificate. I hope we can join in the community in six sigma institute member to sharing disscusion and sharing experience with thousand background from a difference country. Thank you

Maryoto, Food Safety, QA and SHE Senior Manager
★★★★★ Written by Beverley on October 31st, 2020

Very interesting program!

★★★★★ Written by Ashok Hegde on October 22nd, 2020

Nice material and course..

Ashok Hegde
★★★★★ Written by Eduardo Carranza on October 21st, 2020

This course was excellent the resources we received were excellent and I felt really prepared when it was time for the examination, great job putting this together and I hope to take it to the next level and achieve black belt!

Eduardo Carranza, PWD Department Sergeant Major
★★★★★ Written by Eng. Turki on October 19th, 2020

I get my master black belt certification and I am very pleased!

Eng. Turki
★★★★★ Written by Roedolf Coetzer on October 19th, 2020

Great course!

Roedolf Coetzer, COO
★★★★★ Written by Keshia Nowden on October 19th, 2020

This is the first time I've gotten any type of certification. I'm glad I took it through the Six Sigma Institute.

Keshia Nowden, None
★★★★★ Written by Dr Ahlam on October 17th, 2020

Excellent experience!!!

Dr Ahlam
★★★★★ Written by Kristo Rano Keles on October 15th, 2020

Highly recommended! Such a great investment, to upskill and boost your career

Kristo Rano Keles, Head of Operations Excellence
★★★★★ Written by Everet Taylor on October 11th, 2020

The process is very convenient, and the team quickly responds to requests for information and they exceed expectations.

Everet Taylor, Principal
★★★★★ Written by Uzoma Aligasim on October 7th, 2020

Very great and exciting experience! The training is expertly tailored to give you everything you need to know in an amazingly simple manner- Concise and direct approach. I really love the whole experience! Everything is pure class. If you study the guide very well and pay attention to details, the certification will be quite rewarding.

Uzoma Aligasim, Globacom Limited
★★★★★ Written by Omar on October 3rd, 2020

Great resource to further your career.

Omar, SMDR
★★★★★ Written by Anila Krishantha Warnachinthaka on October 1st, 2020

It is a wonderful experience to explore the world of Six Sigma process management, Implementation and Improvements.

Anila Krishantha Warnachinthaka, Manager
★★★★★ Written by Mohamed Salah Khodary on September 30th, 2020


Mohamed Salah Khodary, Quality control packaging material lead in EEPI
★★★★★ Written by Titus Hixon on September 30th, 2020

This was a great class. I passed my test the first time.

Titus Hixon
★★★★★ Written by Abiola Ogundele on September 17th, 2020

Great job!

Abiola Ogundele
★★★★★ Written by Achraf Harras on September 15th, 2020

Lots of thanks to The Six Sigma Institute for their valuable programs which helped me upskill while getting certified.

Achraf Harras, Director of Operations - Multisites
★★★★★ Written by Jhonatan Lorenzo Lugo on September 15th, 2020

Very good traning, really appreciated and took its benefits!

Jhonatan Lorenzo Lugo, mechanical Planner
★★★★★ Written by Hussein Borham on September 14th, 2020

it was really a good experience in green belt course and certificate. The course, the materials, the instructor and finally the exam were amazing. I will continue with the Black belt and the project management accredited certifications! Well done really. All the best

Hussein Borham, Founder of WWTIS enterprises
★★★★★ Written by Pam on September 9th, 2020

I just started reviewing the materials and so far they are very straight forward and easy to follow along. I'm preparing to take my exam in the next few weeks and feel that the course materials will have prepared me.

★★★★★ Written by Jennie Franco on September 9th, 2020

As an Industrial Engineer I understand the value and importance of principles like Six Sigma, Lean and SPC. Obtaining certifications for these are very pricey and require in class training. The feasibility and cost for these Six Sigma Institute’s certifications are amazing. I am grateful there are people willing to help others all around the world understand important material such as this, that is beneficial to companies, business and individuals. Thank you for your efforts and hard work!! I appreciate it dearly!!

Jennie Franco, Data Analyst and Engineer
★★★★★ Written by N'guessan Bernard on September 7th, 2020

I greatly appreciated the practical and scientific nature of the six sigma methodology. I can't wait to get to work to put my know-how at the service of companies that express the need. There is no better place for certification in this area than the Internation Six Sigma Institute platform. I would recommend it to everyone around me ...

N'guessan Bernard, Logistics Operations Manager
★★★★★ Written by Dr. Ashwin Vyas on September 7th, 2020

Great Job! Amazing programs!

Dr. Ashwin Vyas, Concept Medical Inc
★★★★★ Written by Jeremy Naidoo Preng on September 5th, 2020

A great way to get certified at your own pace and at an affordable price compared to other institutions. I appreciate the book as well which provides a very good overview of Six Sigma for future reference.

Jeremy Naidoo Preng, Senior Chemical Process Engineer
★★★★★ Written by Krishnaji Kannan on September 5th, 2020

I thoroughly enjoyed learning six sigma concept and thanks to International six sigma institute

Krishnaji Kannan
★★★★★ Written by Ashraf Ashour on September 2nd, 2020

I really enjoyed the course of the Six Sigma Green Belt and the book is very helpful, I also thank Yeliz Obergfell- for her patience and continuous support!

Ashraf Ashour, SAVOLA GROUP
★★★★★ Written by Kristina Rama on September 1st, 2020

Excellent training!

Kristina Rama, NA
★★★★★ Written by Anis Alnakhlihanafi on September 1st, 2020

The best regards to you and your team because that services and the way to registration is the easiest that I have ever seen.

Anis Alnakhlihanafi, ADF
★★★★★ Written by Florina Popirtac on August 28th, 2020

The materials offered by the Institute to support the individual study are very helpful, so what you all need to do is that that you study at your own pace and take the exam once you’re ready.

Florina Popirtac, Adecco, KAM
★★★★★ Written by Dr. Vijay Kumar Erol Kannan on August 27th, 2020

It was excellent experience. If you would like get certified through internationally recognized six sigma certifications then definitely go with

Dr. Vijay Kumar Erol Kannan, Chief operating officer
★★★★★ Written by Rodney Neville on August 26th, 2020


Rodney Neville
★★★★★ Written by Dave on August 23rd, 2020

International Six Sigma Institute provided excellent preparatory materials that helped me develop the knowledge necessary. I passed the Lean Six Sigma Black Belt exam the first time. Excellent investment! Thank you!

Dave, Chief Academic Officer
★★★★★ Written by Anila Krishantha on August 17th, 2020

It is excellent and easy way to get certification and knowledge, while at free time from anywhere in the world...

Anila Krishantha, Manager Garments Manufacturing Industry
★★★★★ Written by Paulo Roberto De Carvalho on August 13th, 2020


Paulo Roberto De Carvalho
★★★★★ Written by Eben Ofori on August 11th, 2020

Yeliz Obergfell- Thank you very much for the awesome customer service!

Eben Ofori
★★★★★ Written by Anil Kunala on August 9th, 2020

Awesome training material and excellent support and easy way of understanding concepts

Anil Kunala, Consultant at Verizon
★★★★★ Written by Syed Muhammad Taha on August 7th, 2020

Your course is excellent and book is very helpful in clearing the exam . I am glad to have done course with International Six Sigma Institute in very reasonable price.

Syed Muhammad Taha, Assistant Manager QC, Nissan Pakistan
★★★★★ Written by Joao Paulo Pereira on August 7th, 2020

To me, easy to learn! And with great support and material! Congrats!

Joao Paulo Pereira, UP Business Services
★★★★★ Written by Tommie Price on August 7th, 2020

I sent in a request for confirmation of my certificate and receied a reply back very quickly.

Thank you very much.

Tommie Price, Senior AV Engineer
★★★★★ Written by Jorge Jardon on August 6th, 2020

Amazing Experience!

Jorge Jardon
★★★★★ Written by Pankaj Ba6 on July 31st, 2020

Excellent training program

Pankaj Ba6, Co-founder RPABOTPRO
★★★★★ Written by Adriano on July 30th, 2020

Lean and quality!

★★★★★ Written by Rajesh Paleti on July 29th, 2020

In depth and detailed training material with good examples..

Rajesh Paleti, Manager
★★★★★ Written by Saravanan on July 29th, 2020

Despite having over 25 years of experience and a CMQOE certified quality professional, added with hands on improvement activities, I still decide to refresh my Six Sigma knowledge. At this hard time, the cheaper cost made it possible.

Saravanan, Trainer
★★★★★ Written by Julio César Rojas on July 25th, 2020

Excellent experience!

Julio César Rojas, Black Belt
★★★★★ Written by Clint Mobley on July 24th, 2020

Learned a lot in a short period of time.

Clint Mobley
★★★★★ Written by Mohammed Aldugish on July 19th, 2020

Excellent Course and material, thank you!

Mohammed Aldugish
★★★★★ Written by Didij Tri Hartono on July 18th, 2020

I am very proud and grateful for the black belt master certification that I got from the SIX SIGMA Institute. This is because the SIX SIGMA Institute is an institution that has excellent credibility and integrity and is recognized throughout the world.
I hope SIX SIGMA Institute can provide many benefits for professionals around the world to be able to have the ability and recognition of their competency. I wish all the success for SIX SIGMA Institute along with all team work. Thanks you very much!

Didij Tri Hartono, Senior Manager
★★★★★ Written by Rose Vincent on July 17th, 2020

I had an amazing learning experience. Thank you thank you!

Rose Vincent
★★★★★ Written by Kevin Poore on July 13th, 2020

Great experience!
Also I want to mention that I had an excellent support from Mrs. Yeliz Obergfell Thank you so much!

Kevin Poore, Poly Tech
★★★★★ Written by Marek Boguszewicz on July 12th, 2020

An excellent course, great material and very well structured.

Marek Boguszewicz, BI Analytics
★★★★★ Written by Zafar Abbas on July 12th, 2020

I had a few back & forth communications with Six Sigma Institute Team, specifically with Mrs. Yeliz Obergfell, and I must say I am very impressed with her responsiveness and willingness to assist for all of requests.
Its an excellent experience and I am very glad I made a decision to move forward for my certification. In fact I am suggesting all my immediate contacts in business to look at the options available at Six Sigma Institute.

Zafar Abbas, Managing Consultant
★★★★★ Written by Isaiah Kehibde on July 10th, 2020

My contact with the International Six Sigma Institute has been remarkably rewarding.
I have studied for so long elsewhere for my certifications with little result. However the Institute with the close support of Ms Yeliz followed up & motivated me all the way. The exams came & great success recorded.
I recommend the institute to everyone who is keen on moving to the highest level of accomplishments in the area of Continuous Quality Improvement.
I will be back soon for my SSMBB.
Thank you.

Isaiah Kehibde, Managing Consultant, PAMS International Consulting, Nigeria
★★★★★ Written by Yudha Witanto on July 4th, 2020

Excellent, thank you Six Sigma Training from Six Sigma Institute

Yudha Witanto
★★★★★ Written by Mohammad Salem Altayyar on June 30th, 2020

The exams were transparent and easy to understand.

Mohammad Salem Altayyar, System Consultant
★★★★★ Written by Blessy Mathew on June 26th, 2020

Excellent and supportive team to complete the course...

Blessy Mathew, Quality Officer
★★★★★ Written by Sarmistha Chakraborty on June 25th, 2020

I am glad to have done course with such a reputed institute.

Sarmistha Chakraborty, Director
★★★★★ Written by Ramakrishnan R on June 21st, 2020

Fastest and far more affordable exam rates when compared to other websites. Also the free materials that they provide was really useful and helpful for the certification.

Ramakrishnan R
★★★★★ Written by Jennifer Akpabio on June 17th, 2020

Excellent !!!

Jennifer Akpabio, Country Sales and marketing manager - Accor Hotels Nigeria
★★★★★ Written by Kevin D. on June 16th, 2020

I recently completed the Black belt training and I want to say that after researching numerous other training sites "Six Sigma Institutes" prices, along with the ease of training and testing was the best of any of the sites I researched.

Kevin D., Project Manager
★★★★★ Written by Nitin Mahale on June 14th, 2020

Excellent course material and Superb backoffice support!

Nitin Mahale, Quality Manager
★★★★★ Written by Mrityunjoy Bandyopadhyay on June 13th, 2020

It's really an excellent journey to get training from Six Sigma Institute. The depth of the study material is very well connected to industry.

Mrityunjoy Bandyopadhyay, G. M Operation
★★★★★ Written by Dr Mirza Athar Ali on June 9th, 2020

I'm very much satisfied with the way the Six Sigma Institute provided me Consultancy and guidance to achieve my goals. I strongly recommend this Six Sigma Institute to all my followers reading this post.

Dr Mirza Athar Ali, Health care Consultancy
★★★★★ Written by Barbara Matovu on June 9th, 2020

Fantastic experience, brilliant course material made for a fluid learning experience. Don't hold back - do it!

Barbara Matovu, Project Manager
★★★★★ Written by Syed Salahudddin Hussaini on June 6th, 2020

Excellent Coaching Techniques

Syed Salahudddin Hussaini, Regional Distribution Manager
★★★★★ Written by Venkatraman V on June 5th, 2020

Excellent Complete online certification program.

Venkatraman V
★★★★★ Written by Girishwaran on June 3rd, 2020

Thanks for help
its great learning

★★★★★ Written by Carol Ann on June 2nd, 2020

Thanks for the Excellent assistance from Ms. Yeliz. Will still continue to complete my Six Sigma training up to the highest level.

Carol Ann, Process Analytics Manager
★★★★★ Written by Jacqueline Shenouda on May 31st, 2020

Great experience!
Also I want to mention that I had an excellent support from Ms. Yeliz Obergfell Thank you so much!

Jacqueline Shenouda
★★★★★ Written by El Fatih Ali Mohamed on May 31st, 2020

It was excellent and useful course. I already recommended it to my friends and colleagues.


El Fatih Ali Mohamed, Senior Facilities Manager
★★★★★ Written by Michael Davison on May 31st, 2020

This was a great opportunity to take the my years of project management experience of workflow efficiencies through the elimination of wastes and to combine my practical knowledge with the certification offered with Six Sigma Institute.

Michael Davison, Manager of Engineering & Operations
★★★★★ Written by Youssouf Fofana on May 28th, 2020

Great experience. Very useful for all those who are looking for real time knowledge at a very competitive Price.

Youssouf Fofana, Senior Project Manager, Patrymonia Groupe, Canada
★★★★★ Written by Ninad Ghormade on May 27th, 2020

Excellent, Well Structured book and Six Sigma Certification, and easy to understand.

Ninad Ghormade, Student at RWTH Aachen, Germany
★★★★★ Written by Ahmed Mahmoud Abd Elmoaty on May 25th, 2020

Great experience!

Ahmed Mahmoud Abd Elmoaty, Inventory control
★★★★★ Written by Henry Nicol on May 22nd, 2020

Great learning process for improvement of teams

Henry Nicol, Faculty Advisor, US Navy Senior Enlisted Academy
★★★ Written by Ajit Rai on May 22nd, 2020

This is a great path where you increase your skills.

Ajit Rai, production assistanat
★★★★★ Written by Ahmed Kassem on May 21st, 2020

I have more than 19 years of experience in steel rolling operation and I have read some basics of six sigma but with the sixsigma-inistitute I had a professional experience with getting certified for Six Sigma Green belt.

Ahmed Kassem, Rolling Mill Operations Manger
★★★★★ Written by Rafael on May 21st, 2020

Great program and easy to understand, take time to read it and prepare yourself. Best investment I ever made, this is one more step towards my goals. Examination is very doable if you have the right preparation. Highly recommended..!!

★★★★★ Written by Jean Essam on May 17th, 2020


Jean Essam
★★★★★ Written by Chaimae El Mestour on May 16th, 2020

Excellent and detailed course.
Highly recommended.

Chaimae El Mestour
★★★★★ Written by Donald Chipisa on May 16th, 2020

One of the best investments I've ever made is through signing up with this International Six Sigma & Scrum Institute! They are very professional, transparent, honest, knowledgeable and very helpful. As a working professional trying to advance in my career and equip myself with professional certifications that would position me in a competitive light, it was a pleasure working with Yeliz. The study materials, mentoring and 24/7 support made this experience very rewarding for me. I was able to pace myself through my studies, but have all my questions answered during the process making it easy and preparing me for exam time. Then the opportunity to take the exam up to 10 ten times was a big comforter & a great differentiator of these programs. I'm now a Certified Scrum Master & Certified Six Sigma Black Belt. Thank You !!!

Donald Chipisa, Scrum Master
★★★★★ Written by Vikas Shukla on May 13th, 2020

The book content and examination questions was up to the parameters ...

Vikas Shukla, Project manager
★★★★★ Written by Omkar Bhosekar on May 11th, 2020

I recommend each & everyone to do all the belts, as they are going to be very helpful in your professional life, as they will give you excellent knowledge about six Sigma, and its different levels.
It will definitely make you stand out from the crowd in your organization. It helped me a lot in my career to achieve new heights and will surely help my organization too to improve its functionality & operations.

Omkar Bhosekar
★★★★★ Written by Rohit Mahajan on May 6th, 2020

It's beautiful experience to take my six sigma green belt from ISSI. Thank you to Yeliz Obergfell. She is so supportive.
They think about giving good education, not to earn money.

Rohit Mahajan, QA Engineer
★★★★★ Written by Bushan Yadhav on May 5th, 2020

Fantastic......notes ….
Brilliant certification.
Feeling proud...with International Six Sigma Institute

Bushan Yadhav, Freudenberg
★★★★★ Written by Yaneisy Rodriguez on May 4th, 2020

Six Sigma Institute offer excellent communication and support with Mrs. Yeliz Obergfell!

Yaneisy Rodriguez, Medical Underwriter
★★★★★ Written by Violeta on May 4th, 2020

Great Programs!

★★★★★ Written by Mitchel Dehesa Castillejos on May 3rd, 2020

I definitely recommend International Six Sigma Institute. I have 15 years working experience and some of them directly involved in quality and process improvement areas so I decided to formalize a certification by an examination of a worldwide-recognized organization so I choosed Six Sigma Institute. The study material is both extense and concrete at the same time. It was a quite hard study-time to get all the concepts reviewed and well conceptualized before taking the exams. Result was positive and I have to insist that effort always gives you a worthy recompense.

Mitchel Dehesa Castillejos
★★★★★ Written by Maurice Spann on May 2nd, 2020

My experience with my CSSMBB program was top notch. The exam was very thought provoking and made me think throughly many of the questions on the exam. Having 15 years of Six Sigma experience, I appreciated the information provided to prepare me for my Certified Six Sigma Master Black Belt (CSSMBB) certification exam. To put the icing on the cake, the customer service I received from the staff was excellent as well! Highly recommended!

Maurice Spann, CEO and Managing Director
★★★★★ Written by Ahmed Ali Sulaiman Alshehri on April 27th, 2020

Six Sigma Institute is a very competent, helpful and proactive training and certification provider compared to other Educational Provider I have worked with so far.
I highly recommend them to anybody who seek to learn Six Sigma methodologies. The Study Guide is an excellent masterpiece and the book makes it easy to understand such a complex subject like Six Sigma.

Ahmed Ali Sulaiman Alshehri, Senior Project Engineer
★★★★★ Written by Rafael on April 27th, 2020

Great experience, The material was very easy to understand and very well organized. I recommend you to get encouraged to do it. Many thanks and great work!

★★★★★ Written by Martianus Simamora on April 27th, 2020

Six Sigma Institute shows the world how Six sigma training must be done! Thank you!

Martianus Simamora, APP - Perawang Mill
★★★★★ Written by Saad Sentissi on April 24th, 2020

I liked the way International Six Sigma Institute welcomes and takes care of all persons who want to learn and grow in their careers!
In addition to that, Six Sigma Institute provides a very good price compared to other certification providers which even doesn’t offer a quarter of the value the Six Sigma Institute offers.
Great job and hats off for Six Sigma Institute!

Saad Sentissi
★★★★★ Written by George Sawertailo on April 23rd, 2020

Very informative and useful . Can't wait to apply my new knowledge I learned from Six Sigma Institute!

George Sawertailo, Senior Manager
★★★★★ Written by Michael Loquercio on April 23rd, 2020

Fair and reasonable! Really enjoyed the class - our instructor provided common sense applications to some challenging coursework materials (statistics). Nice blend of theory and practical application!
About the right content for the class duration. Fabulous tools with Minitab and Companion.

Michael Loquercio
★★★★★ Written by Ahmed Alshehri on April 22nd, 2020

Very well structure approach for SIX-SIGMA Green belt Methodologies. I recommend any researcher who has concerns about adopting TQM in his field, to go through Sigma Institute certifications.

Ahmed Alshehri, SASREF
★★★★★ Written by Theb on April 21st, 2020

Great website, great programs!

★★★★★ Written by Zubair Hashmi on April 20th, 2020

Excellent Platform that I have ever engaged with!!!

Zubair Hashmi, Compliance and Planning Engineer
★★★★★ Written by Reda Lasfar on April 19th, 2020

Thank you very much. I’m glad to get certification from Six Sigma Institute.

Reda Lasfar, Responsable Produit
★★★★★ Written by Britta Eriksen on April 18th, 2020

My experience with everyone from the Six Sigma Institute has been delightful. The excellent customer service set a foundation for a highly positive end user experience. Even after successful completing and passing my CSSGB exam, I received cheerful, and sincere congratulations form multiple members of the organization. Thank you so much for enabling and empowering me to continue reaching forward to my dreams and goals.

Britta Eriksen, Technology Implementation Senior Analyst
★★★★★ Written by David Humphries on April 17th, 2020

Study materials and support are awesome!!! Highly recomended

David Humphries
★★★★★ Written by David Humphries on April 14th, 2020

Everything was top tier! Materials, test, customer experience, and follow up.
Awesome experience! Was really easy to navigate and if you have questions they respond immediately. I will come back for my black belt!

David Humphries
★★★★★ Written by Hazel Vega on April 12th, 2020

Six Sigma Institute programs utterly exceeded my expecations. Great price/performance ratio has been delivered!
Their study book, Six Sigma Revealed, had all info I neeedd, not only to learn, but also to pass the test in my first attempt!

Hazel Vega, Program Manager
★★★★★ Written by Inayat Ullah on April 12th, 2020

International Six Sigma Institute’s team is highly appreciated, cooperative and supportive in every way possible. The Six Sigma training materials they provide are extremely valuble, informative and easy to undertsand. I'm really very happy the way they are doing their job and thank you once again.
Best Regards

Inayat Ullah, Mechanical Supervisor
★★★★★ Written by Solomon M on April 11th, 2020

Excellent, Transparent and systematic certification methodology.

Solomon M, Head HR
★★★★★ Written by Abhishek Singh on April 9th, 2020

Content: crisp & clear
Recognized: heavily
Leaders: very helpful
Exam: you can achieve it, just study the book, listen to the audiobook

Abhishek Singh, Senior executive
★★★★★ Written by Bassem Eleaba on April 7th, 2020

Thanks for your service. Great product!

Bassem Eleaba, Ethylene & Derivatives Co.
★★★★★ Written by Mahad Bouh Doualeh on April 3rd, 2020

I’m glad to get certification from Six Sigma Institute. Thank you!

Mahad Bouh Doualeh
★★★★★ Written by Mats Fernandes on March 31st, 2020

Material is very crisp, precise and the curriculum is totally practice oriented.

Mats Fernandes, Director, Kaizenxs Consulting
★★★★★ Written by Inayat Ullah on March 20th, 2020

I dont have words to thanks to six sigma institute for their feedback,support and help in this regard. Really I'm enjoying your service and keep it up same in the future. Thx, Inayat Ullah

Inayat Ullah
★★★★★ Written by Vijay Aminbhavi on March 10th, 2020

Excellent, awesome and valuable support extended by Yeliz. Thanks a ton, as always. Highly recommended!

Vijay Aminbhavi
★★★★★ Written by Barnabas Junior Mponda on March 7th, 2020

Best service I have received and I will not hesitate to refer anyone who want to advance career.

Barnabas Junior Mponda
★★★★★ Written by Tatjana Micic on March 6th, 2020

Excellent experience. The training is great..

Tatjana Micic, BPM & System Support Unit Supervizor, Eurobank, Serbia
★★★★★ Written by Shehu Idris on March 5th, 2020

The day I completed my certification, I started applying the Six Sigma DMAIC technique learnt from Six Sigma Institute, and the results has been great. This achievement has quickly attracted leaders from my Board of Directors. This is a great course (CSSGB), and I appreciate your great services!

Shehu Idris, Head of Finance and Accounts, Labana Rice Mills Ltd, Nigeria
★★★★★ Written by Gopalakrishnan Harikrishnan on March 2nd, 2020

Six Sigma Institute is an amazing place to learn Six Sigma. They go extra mile in terms of customer's satisfaction, prompt and competent response to all queries. Yeliz Obergfell ✨my instructor provided the expertise and guidance for me to successfully complete the program!

Gopalakrishnan Harikrishnan, Production Manager at Hufcor Maroshumi Sdn Bhd
★★★★★ Written by Stacey Lynn Smith on March 2nd, 2020

This was an amazing journey! The material was in-depth and the entire experience was first class. Thanks for this high quality, great service! I am looking forward to more certifications in the future.

Stacey Lynn Smith, Operations Manager
★★★★★ Written by Rana Riziq on February 15th, 2020

I would like to thank you so much for your great sessions you send it to us, and for your continues support on these, since they're really very great tools and useful framework. We're really glad to be follower for International Six Sigma institute..

Rana Riziq, Six Sigma Subject Matter Expert in Lean Manufacturing Industry
★★★★★ Written by Lavon Nicole Pettis on February 14th, 2020

Quality service, my instructor provided the expertise and guidance for me to successfully complete the program!

Lavon Nicole Pettis, Workforce Innovation and Opportunity Act Student
★★★★★ Written by Humberto Alonso Moreno Borjas on February 11th, 2020

Very good certification, very useful! I could easily finish it in a week by reserving one hour of study time every day. Thank you very much for this fantastic product!

Humberto Alonso Moreno Borjas
★★★★ Written by Gaurav Godbole on February 10th, 2020

I am glad to get this certification of black belt.

Gaurav Godbole, Team leader - Quality Assurance
★★★★★ Written by Reda Graiti on February 9th, 2020


Reda Graiti
★★★★★ Written by Anne Morrison on February 6th, 2020

This was one of the best Manuals for examination Six Sigma Black Belt preparation.

Anne Morrison, Wells Fargo
★★★★★ Written by Tahir on February 6th, 2020

Amazing service. Very helpful! Excellent training materials, easy online access and quick response to questions. Highly Recommended

★★★★★ Written by Nnaji Ifeanyi on February 5th, 2020

Great! So happy happy to be part of this family. I Cannot wait to finish preparation, take my Exam and obtain my Certificate.

Nnaji Ifeanyi, Quality Assurance Supervisor (Officer)
★★★★★ Written by Fernando Apolonio on February 4th, 2020

International Six Sigma Institute assured us to have right and certified talents in our Six Sigma teams.

Fernando Apolonio, Quality Supervisor
★★★★★ Written by Ziad on January 31st, 2020

Good service, prompt response, good value of money!

★★★★★ Written by Jo-ann Calcagno on January 30th, 2020

Strongly recommended! Knowledge gained has helped me provide my clients with better faster & stronger results!

Jo-ann Calcagno, IT Consulting
★★★★★ Written by Wael Alqadi on January 23rd, 2020

Excellent training materials, easy online access and quick response to questions.
I definitely recommend the International Six Sigma Institute Programs to enhance your problem solving skills.

Wael Alqadi, Nordam Group The
★★★★★ Written by Mathias Chesoli on January 22nd, 2020

Six sigma courses give the fundamentals for development at every level of project management and data analysis.

I found out that i am unique in presenting various skills while handling projects. And more so, I am able to proudly present my certificate from Six Sigma Institute for any unique & involving job that needs such skills!

Mathias Chesoli, Quality Assurance Manager
★★★★★ Written by Joseph Odunolu on January 19th, 2020

Six Sigma Institute is an amazing place to learn Six Sigma. They go extra mile in terms of customer's satisfaction, prompt and competent response to all queries.
You guys are very brilliant and Yeliz, your support has been amazing. Thanks!

★★★★★ Written by Charan Kamal Jeet Singh Sardar on January 18th, 2020

I had a great experience of six sigma institute and helped me to achieve green belt.

Charan Kamal Jeet Singh Sardar, Quality Analyst, NSEIT
★★★★★ Written by Patrick Sidler on January 8th, 2020

The SIX SIGMA book is very helpful to prepare the exam. However English is Not my native Language, to read the Book and prepared and pass the test was for me also a good English Training.

Patrick Sidler
★★★★★ Written by Francis Nkemnyi Mbunya on January 5th, 2020

Taking my Six Sigma Master Black Belt Exams was easy with the great support from the Internationals Six Sigma Institute.
Because of this great experience with this six sigma certification, I will strongly recommend them.

Francis Nkemnyi Mbunya
★★★★★ Written by Marek Boguszewicz on January 5th, 2020

Excellent course and unlike many six sigma courses very precise and very well presented .

Marek Boguszewicz, Executive Director
★★★★★ Written by Maurice Wilson on January 4th, 2020

International Six Sigma Institute is the excellent choice to learn Six Sigma.
Their material is easy to understand and full of practical use cases! Thank you for the quality of your service!

Maurice Wilson, Anniston Army Depot
★★★★★ Written by Hany Barakat on December 27th, 2019

It is exciting to me to gain this knowledge and join the FAMILY.

Hany Barakat, Senior Welding Engineer / JACOBS
★★★★★ Written by Fernando Alonso Romero on December 26th, 2019

I am very satisfied with all the experience I had from the moment you choose which certification suits for you, the payment process, the certification exam, the high quality certificate and above all the great support and the great resources you are bringing to anyone interested in these certifications.
It was the best decision chosing Six Sigma

Fernando Alonso Romero, Field Service Engineer, ASP
★★★★★ Written by Asbai Ramirez on December 24th, 2019

As a leader, these skills I have learned from International Six Sigma Institute have greatly impacted how I look at things. Thank you!

Asbai Ramirez, US Army
★★★★★ Written by Joseph Singleton on December 20th, 2019

These programs is an awesome way to get certified in areas that pertain to my field and make me more marketable in the civilian sector when I transition after 20 years in the Service.
I think these programs from International Six Sigma Institute are the only financially friendly education solution to Military members.

Joseph Singleton, 920A Property Book Officer
★★★★★ Written by Erdogan Sengezer on December 20th, 2019

Thanks for all great documents and sharing valuable knowledge.
I couldn't believe when I saw your shared documents. They are perfect sources for us.
Thank you very much for all.

Erdogan Sengezer, Consultant
★★★★★ Written by Elice on December 18th, 2019

I found out about Six Sigma Institute during my research for a certification. Sincerely, I do not regret it. The document provided for preparation was of highly quality (I have compared it with other books available about the subject). Very important also is that the payment option is flexible and adaptable to my case. The overall experience is great.

Elice, Line manager
★★★★★ Written by Haribabu Thanakala on December 18th, 2019

International Six Sigma Institute is an excellent education provider. None of the providers that I have worked are even close to their calibre! Thank you very much!

Haribabu Thanakala, Account Manager - Commercial Lines
★★★★★ Written by Freedom Osatohanmwen on December 17th, 2019

I like it and enjoyed every bit of the material, constructively arranged.

Freedom Osatohanmwen
★★★★★ Written by Abdur Rakib on December 17th, 2019


Abdur Rakib, Quality Assurance Officer
★★★★★ Written by Dr. Nicole Francis on December 16th, 2019

Excellent experience and the training book stays at my desk!
Great resource for Six Sigma Master Black Belt. This is the most economical and quality course around.
I made a great choice with International Six Sigma Institute.

Dr. Nicole Francis
★★★★★ Written by Antony on December 15th, 2019

These programs from Six Sigma Institute are absolutely worth to take them to bring your career forward!

Antony, Quality Lead
★★★★★ Written by Ahmed Mohamed Ali Abo Helwa on December 10th, 2019

Six Sigma has been already adding value for me and my company.
I use most of the methods and tools I learnt from Six Sigma Institute in my job.

Ahmed Mohamed Ali Abo Helwa, EZDK
★★★★★ Written by Oscar Hurtado on December 5th, 2019

Six Sigma works!!!
Every person in the world must learn the basic guidelines of six sigma. Change is the only constant we must keep. Improving is part of our DNA !!!

Oscar Hurtado, CEO Lean Seven
★★★★★ Written by Bacem Romdhane on November 23rd, 2019

I am very glad to be certified as Six Sigma Master Black Belt with the opportunity given by the Six Sigma Institue.

Bacem Romdhane, Lean Six Sigma Consulting
★★★★★ Written by Noor Yea-amin on November 23rd, 2019

Thanks to everyone. For supporting me. Thank you very much. I have learned many things from the text book. The journey of this study has been awesome .

Noor Yea-amin, Senior Officer, Beximco Pharmaceuticals Ltd.
★★★★★ Written by Nsikan Udo on November 23rd, 2019

The material was very helpful. All that is needed to pass the exam is contend there in. I will strongly recommend. Big thanks

Nsikan Udo
★★★★★ Written by Thomas on November 16th, 2019

Quick, direct and efficient course.

Thomas, Director of Field Operations
★★★★★ Written by Jonathan Session on November 16th, 2019

Great course and information!!

Jonathan Session, United States Military
★★★★★ Written by Larhonda Nolen on November 15th, 2019

This process illuminates the complications that one can return into while trying to get their certifications.
I appreciate the process and thank to International Six Sigma Institute for enabling to take the test from home and becoming certified in hours.

Larhonda Nolen, Warehouse Operations Supervisor
★★★★★ Written by Fco Javier Rivera-garcia Cigala on November 5th, 2019

I would like to thank the Six Sigma Institute for all your support to obtain my Master Black Belt Certification.
I appreciate your always prompt responses during my training process.
fco javier rivera-garcia cigala

Fco Javier Rivera-garcia Cigala, Director of Operations
★★★★★ Written by Cheng Siong Bong on November 5th, 2019

SSI (International Six Sigma Institute) provides an effective and rewarding way of continuing professional development.

Cheng Siong Bong
★★★★★ Written by David Heidler on October 24th, 2019

I took this course at MicroTrain, who partnered with the International Six Sigma Institute and used the institutes book "Six Sigma Revealed”.
Everything you need to know to learn and understand Six Sigma is indeed contained in this book.
It is clear, concise, and well thought out. I highly recommend it.

David Heidler
★★★★★ Written by Girishwaran on October 24th, 2019

Very excited and happy that I had completed my Six sigma green belt from International Six Sigma Institute.
It’s been a year I had been planning to write the test. I cleared the exam in first attempt with 48/50 points. I really did not expect this would come out.
Thanks you so much once again for teaching me Six Sigma so well!

★★★★★ Written by Andrés Torres on October 18th, 2019

Hi there, I received enough material to obtain the yellow belt certification, a very good customer service and a complicated exam but it was a very good challenge, now I go ahead for the green belt.

Andrés Torres, CEO
★★★★★ Written by Manjunatha on October 17th, 2019

Great Programs! Before attending exam, please make sure you have enough knowledge. Any certifications will have value only when you know how to apply in the industries.
Good luck to the new joiners of Six Sigma Institute. You will for sure enjoy and profit from this amazing learning and certification experience!

Manjunatha, Lead manufacturing engineer
★★★★★ Written by Basem Elbahrawy on October 12th, 2019

It is the first time to deal with your organisation hoping to be not the last for further program and I will tell all my friends about you based on your service level, I need to be part of your success in gaining certified six sigma black belt through this cooperative team.
Basem Elbahrawy

Basem Elbahrawy, Head of quality team NTA
★★★★★ Written by Lee on October 11th, 2019

Excellent program. Easy to use. I absolutely recommend to anyone who wants to learn Six Sigma!

★★★★★ Written by Elias Abu Jarour on October 9th, 2019

It is a great experience, I recommend programs from International Six Sigma Institute to everyone who wants to improve themselves and progress in their work environment!

Elias Abu Jarour, Manager
★★★★★ Written by Mike on October 8th, 2019

My experience so far has been outstanding and the response time is phenomenal.
Will keep you updated as I progress.
You will be totally pleased with Six Sigma Institute.

Mike, Director of Quality
★★★★★ Written by Victoria on October 7th, 2019

Great experience. I highly recommend everyone to go to their programs with International Six Sigma Institute.

★★★★★ Written by Mubasher Cheema on October 7th, 2019

A very smooth and efficient certification process. This is axactly what is offered by the Six Sigma Institute, a true value of time and money invested.
I must acknowledge Yeliz Obergfell's regular informative e-mails, which helped refresh the six sigma knowledge.
I believe Six Sigma Institute offers value beyond the certification process. Well done!

Mubasher Cheema, Project Manager
★★★★★ Written by Shaju on October 7th, 2019

Good questions on the test, toptics covering all segments of the Scrum framework, student friendly processes and user support!

Shaju, Concentrix
★★★★★ Written by Devendra Sharma on October 5th, 2019

The International Six Sigma Institute’s book on Six Sigma learning is very useful and all matter has been explained in a excellent way with required examples.
Six Sigma Institute is really helping to develop Managements and Engineering skills through it's verious learning programs.

Devendra Sharma, Vice President - Projects, Lloyd Insulations India Limited
★★★★★ Written by Eric on October 3rd, 2019

The Six Sigma Institute was very helpful, user friendly and very informative. I would recommend to anyone.

★★★★★ Written by Danny Horn on September 23rd, 2019

Clear study content, approachable and proactive leadership, affordable, helpful, creative, practical. :-)

Danny Horn
★★★★★ Written by Praveen Barathi on September 19th, 2019

Six Sigma Institute institutionalizes the required knowledge on Six Sigma with all the efforts and initiatives taken to consolidate and provide effective information. This is a phenomenal effort in collating information of both analytical and emprical value connecting all the horizons of project management with Six Sigma Quality Improvement framework .

Praveen Barathi
★★★★★ Written by Umar Zafar on September 16th, 2019

To begin with, I was looking for online study material of six sigma certification but they were all paid and expensive. Then I came across this link which took me to your website. I have been provided with a free book which includes all the contents required and necessary to prepare for the six sigma certification. I got mails from Ma'am Yeliz Obergfell, the VP of Six Sigma Institute guiding me through. I even got multiple replies to my mails which has been very kind and supportive from Yeliz. Thank you for all the help and guidance for helping me. I appreciate all your help. Keep up the good work and thank you once again!

Umar Zafar, Monitoring and control engineer (Construction Industry)
★★★★★ Written by Max Vargas Sanchez on September 16th, 2019

Everything is perfect. Great platform. The information is on time. Recomended 100% to other collegues.

Max Vargas Sanchez, Company Owner
★★★★★ Written by Jee on September 14th, 2019

Six Sigma Institute provides great program to learn. The team over there and quality of their programs met my expectations above and beyond.

★★★★★ Written by Daniel Kiramathypathy on September 8th, 2019

Great programme. Globally Recognised. Excellent Training!!!

Daniel Kiramathypathy, Amazon
★★★★★ Written by Delrick Proshay on September 8th, 2019

Awesome institute and they really are recognized globally.

Delrick Proshay, Vectrus
★★★★★ Written by Stephenson Agbobli on September 4th, 2019

Study guide from Six Sigma Institute was easy to understand and it was extremely to the point… I really liked it.

Stephenson Agbobli, JNC International Ltd
★★★★★ Written by David Hernan Tardini on September 2nd, 2019

Excellent training and high quality study material!

David Hernan Tardini
★★★★★ Written by James Nduba on August 26th, 2019

Very helpful, easy to follow guide and affordable fees.

James Nduba, Branch Manager - Hill and Delamain
★★★★★ Written by Mahmoud Alkhatib on August 24th, 2019

Great support during the communication before going deeper into the material & the exam.
The questions were not easy but clear. Training materials are absolutely brilliant.
I am extremely pleased about my overall experience with International Six Sigma Institute. Thanks!

Mahmoud Alkhatib, Agile Scrum Master, Senior IM
★★★★★ Written by Ingrid Jhuboo on August 23rd, 2019

Great Programs from Six Sigma Institute!

Ingrid Jhuboo, Product specialist
★★★★★ Written by Rishee Chandran on August 13th, 2019

Amazing program! Totally worth it!

Rishee Chandran, Analyst
★★★★★ Written by Bonire Olarotimi on August 9th, 2019

The second edition of the Six Sigma Training material was so understandable and practical.
I really appreciate being a member of the International Six Sigma Institute.
Your approach to career development was smart and helpful.
Thanks for all the feedbacks, explanations, mails and responses.

Bonire Olarotimi, IDMON Engineering & Construction Company Limited
★★★★★ Written by Sum on August 9th, 2019


★★★★★ Written by SGM Richard Riccio on August 5th, 2019

A little over a year ago, I was given a link by a United States Army colleague for the Six Sigma Institute. This link was sent to many of us in hopes that we would take advantage of the opportunity. I looked into the programs and found them extremely user-friendly and very practical.

As a result, I decided to start with the Certified Six Sigma Yellow Belt (CSSYB) and Certified Six Sigma Green Belt (CSSGB) certification programs. From there, I eventually completed the other certifications as well.

Several months ago, while attending a military course at Fort Knox, one of the main instructors took about 20 minutes to explain these programs to the students in the class. He had also achieved Six Sigma certifications.

The main instructor explained to the class that: After he completed his Certified Six Sigma Black Belt certification program from Six Sigma Institute, he received numerous job offers that include a prestigious position at Amazon Incorporation.

It is no secret that the United States Army utilizes Six Sigma Certification Programs from International Six Sigma Institute™ on a regular basis.

It is cost-effective and gets straight to the point. I often tout this program to peers, and I will continue to do so.

SGM Richard Riccio
353d Civil Affairs Command
Staten Island NY, US Army

SGM Richard Riccio, 353d Civil Affairs Command, Staten Island NY, US Army
★★★★★ Written by Stanley Odiase on August 4th, 2019

Six Sigma Institute offers amazing services. Absolutely brilliiant!

Stanley Odiase, Self Employed
★★★★★ Written by Abraham Iduh on August 2nd, 2019

International Six Sigma is a very helpful and competent organization. I am planning to get my sigma certifications from you guys. Best regards and Thanks for this opportunity!

Abraham Iduh
★★★★★ Written by Ricardo Venegas on August 2nd, 2019

Excellent portal to learn Six Sigma.

Ricardo Venegas, HOSPITAL VELMAR
★★★★★ Written by Alex M on August 1st, 2019

I was trained as a black belt by a fortune 100 company back in 2009 and have been utilizing the knowledge I gained throughout my career. However, I never received my certification. So in finding six sigma institute, I was ecstatic because the workbook was and will continue to be a great resource for me and I got to freshen up on my black belt skills - but most importantly, I finally received my certification.

Alex M, Principal
★★★★★ Written by Leroy Northam on July 31st, 2019

Presented Concepts of Six Sigma well. I felt prepared for the exam questions.

Leroy Northam, Chief Information Officer
★★★★★ Written by Terry Carter on July 30th, 2019

The International Six Sigma Institute is a phenomenal organization. The knowledge acquired in this class is invaluable.

Terry Carter
★★★★★ Written by Prasit Homroed on July 28th, 2019

This 6Sigma Institute has a very strong leader support and service. They never give up to help you get certified.

Prasit Homroed, Project & Supply Develop Director
★★★★★ Written by Abdeljalil Laamimi on July 25th, 2019

It has been an excellent experience to know about Six Sigma institute. It 's a pleasure to me to have received a response and solution. They show their commitment to assisting students as well as providing a great credited institute with easy to use and understand course materials. I will definitely recommend your web site and certifications.
Abdeljalil Laamimi

Abdeljalil Laamimi, Expertview
★★★★★ Written by Rohitash Dubey on July 24th, 2019


Rohitash Dubey, Self Employed
★★★★★ Written by Samson Adebayo on July 23rd, 2019

International Six Sigma Institute is the way to go for International certifications. They help with best of materials and best prices.

Samson Adebayo, Quality Assurance/Quality Control, Nigerian Agip Oil Company
★★★★★ Written by Daniel Tata on July 23rd, 2019


Daniel Tata, Smith & Nephew Switzerland
★★★★★ Written by Ricky Jamerson on July 23rd, 2019

This was definitely a great experience and I feel like it helped me reach my career goals much faster.

Ricky Jamerson, 1968
★★★★★ Written by Tissa Jayasekera Jayasekera Arachchige on July 21st, 2019

I registered for three courses with $50 discount from Six Sigma Institute. Then I slowly studied during the past months whilst i was available to do so. I gave my exams for Yellow, Green & Black belts. I was successful and I am now a certified six sigma belt holder! You should be the next one and you shouldn’t miss the chance to work with such a quality institute.

Tissa Jayasekera Jayasekera Arachchige
★★★★★ Written by Kevin Hackett on July 21st, 2019

It has excellent experience to know about Six Sigma institute. I contacted six sigma institute with questions and concerns and within less than 24 hours I received a response and solution. Shows their commitment to assisting coustomers as well as providing a great credited institute with easy to use and understand course materials. I will definitely recommend your web site and certifications.

Kevin Hackett, DoD
★★★★★ Written by Molatedi Walter Ramotlopi on July 19th, 2019

The material is understandable. Straight to the point the material makes you to fall in love with Sixsigma. The exam is thought-provoking and interesting.

Molatedi Walter Ramotlopi, Quality Assurance Specialist DTC/Botswana
★★★★★ Written by Samuel Andoh on July 17th, 2019

I contacted six sigma institute and within less than 24 hours I had already registered. Their responses and customer services are on point. They are top notch when it comes to serving customers.

Samuel Andoh, Valco
★★★★★ Written by Antony Atkin on July 16th, 2019

I have worked and been involved a lot with Six Sigma projects previously and as I work from home I wanted a good online and simple to use training platform which did not cost the earth. I have been pleased with the training material provided and the ease of use with the examination.

Antony Atkin, Chartered Energy Manager
★★★★ Written by Birat Rai on July 16th, 2019

Learning for lean management. Long waited my dream course too.

Birat Rai, River Nepal P. Ltd/ Leadthe globe P Ltd
★★★★★ Written by Sergio Santos on July 15th, 2019

Very nice material, organized and very useful. The test as expected..

Sergio Santos
★★★★★ Written by Muhammad Asif on July 15th, 2019

It has excellent experience to know about Six Sigma institute. They delivered me wonderful and useful gift (Six Sigma Revealed book) which helped me fully learn and digest Lean and Six Sigma.

Muhammad Asif, Country QA head
★★★★★ Written by Bolaji Bankole on July 14th, 2019

Great Value with smooth study, good program.
Excellent material for study.
I will definitely recommend your web site and certifications
Everything about the exam was also good.

Bolaji Bankole, Senior Information and Cyber Forensic Consultant
★★★★★ Written by Nipu Nath on July 11th, 2019

I am quite happy to see such competitive offerings by International Six Sigma Institute™ for various Six Sigma certifications. I was coordinating with this institute to resolve few queries that I have for the certification programs and I am immensely satisfied with the excellent customer service provided by this institute to address my queries. I am excited to join couple of Six Sigma certification programs from this institute in near future. Keep up the good work.

Nipu Nath, Manager, Publishing
★★★★★ Written by Melissa López on July 11th, 2019

Great service!!

Melissa López, Account Lead, DXC Technology
★★★★★ Written by Claudia Cely on July 3rd, 2019

This is an excellent institute. Your certification path is amazing and the resources to actually accomplish the same is wonderful.
Thanks you for all the assistance, I have never felt so accompanied on a certification before!
Keep it like it is because you are helping so many professionals now.

Claudia Cely, Project Manager
★★★★★ Written by Paul on July 2nd, 2019

It was exciting to learn and the concepts are details outlined in a comprehensive manner, easy to understand

★★★★★ Written by Maksym on June 27th, 2019


Maksym, PwC
★★★★★ Written by Christine Franz on June 25th, 2019

The course was very thorough and I value the the formal concepts and processes that I was able to learn and take with me from this course and certification and I look forward to the exciting opportunities my certification will afford.

Christine Franz
★★★★★ Written by Ravish Kumar on June 23rd, 2019


Ravish Kumar, Self Employed
★★★★★ Written by Nataraj V G on June 16th, 2019

Great Programs!

Nataraj V G
★★★★★ Written by Rayna Ilieva on June 12th, 2019

Great program! Thank you!

Rayna Ilieva
★★★★★ Written by Oluranti Fagbenro on June 11th, 2019

The whole process is awesome

Oluranti Fagbenro
★★★★★ Written by Jason Nazarenko on June 10th, 2019

I had great experience with the Six Sigma Institute! The exam prep and test were well laid out, easy to understand and simple to use!

Thank you!

Jason Nazarenko, Senior Operations Manager
★★★★★ Written by Martins Onoriode on May 28th, 2019

Six Sigma Institute has a user friendly website/porter and the prompt response from Ms Yelis is another huge motivation for me. So far, I have reasons to stay connected to Six Sigma Institute .

Martins Onoriode, Regional Head- Security services, Abuja Electricity Distribution Company (AEDC PLC) FCT Abuja, Nigeria.
★★★★★ Written by Mauro Suca on May 26th, 2019

Very impressive!

Mauro Suca, Manufacturing Manager, CCBA ID Mozambaique
★★★★ Written by Salokya Tummala on May 25th, 2019

It was fantastic!

Salokya Tummala
★★★★★ Written by Isaac Rajendran on May 23rd, 2019

My Certified Six Sigma Green Belt (CSSGB) Certification is getting great attention, and helping me in my job search.

Isaac Rajendran, Consultant
★★★★★ Written by Eric on May 23rd, 2019

Great experience!! Strong program!!

★★★★★ Written by Dipanjan Basu Basu on May 20th, 2019

Excellent service. Worth spending on six GB certification. I will now prepare for my bb.

Dipanjan Basu Basu, Senior Manager
★★★★★ Written by Bernacchi Andrea on May 17th, 2019

One word....Great

Bernacchi Andrea
★★★★★ Written by Jonathan Zimmer on May 12th, 2019

Best way to certify without any hassle! Thank you team for leading this certification program! Highly recommended!

Thank you!

Jonathan Zimmer, Senior Operations Manager (US Army)
★★★★★ Written by Tissa Jayasekera Jayasekera Arachchige on May 10th, 2019

Voice of Customer. Institute provides everything a person needs to advances his or her carrier by knowledge & certification the employer needs!

Tissa Jayasekera Jayasekera Arachchige
★★★★★ Written by Shehu Idris on May 9th, 2019

Your certification, which is backed by qualified tutors and rich reading materials is unmatched.

Shehu Idris, President/CEO - Shaderix Systems and Strategy Consulting Nigeria.
★★★★★ Written by Mohammed Mohsin Ahmed Al Mohaisin on May 9th, 2019

Very Good Service! I strongly recommend to others!

Mohammed Mohsin Ahmed Al Mohaisin, NaGEL eXPRESS
★★★★★ Written by Sanjeev Kumar, Cssbb, Cpc on May 1st, 2019

Very useful resource for Six Sigma aspirant and professional..

Sanjeev Kumar, Cssbb, Cpc, Sr. Quality Analyst
★★★★★ Written by Christopher Mcdermott on April 21st, 2019


Christopher Mcdermott, Bank of America
★★★★★ Written by Terje Nymark Olsen on April 18th, 2019

Excellent value for money. As a Six Sigma practitioner I can help in improving the quality of products and services delivered by organizations to customers. This is a great addition to my other certifications!

Terje Nymark Olsen, Project Manager
★★★★★ Written by Tunde Adeyanju on April 18th, 2019

Six Sigma is very helpful to me and I have been applying it to by day to day activities, expecially in my work. Thank you

Tunde Adeyanju, Nigerian Communications Commission
★★★★★ Written by Syed Khan on April 17th, 2019

Outstanding content

Syed Khan, Assistant
★★★★★ Written by Rajat Gupta on April 17th, 2019

Very good course with in-depth knowledge and topics.

Rajat Gupta, Assistant Manager
★★★★★ Written by Kamaldeep Singh on April 13th, 2019

Excellent value for money. Entire team of Six Sigma Institute have been very helpful.

Kamaldeep Singh
★★★★★ Written by Professor Dr Peter Harrison on April 12th, 2019

All businesses compete on Price, Quality, Delivery and Safety. For my training experience with the Six Sigma Institute, I had a chance to very closely observe that the International Six Sigma Institute excels in all of these dimensions. Certainly gives value and care for its students.. Professor Dr Peter Harrison Chartered Quality Professional.

Professor Dr Peter Harrison, Director
★★★★★ Written by Franklin Pascua on April 8th, 2019

Yeliz was very helpful, I needed some assistance with my Black Belt Certification and she provided the tools I needed.

Franklin Pascua
★★★★★ Written by Deepanshu on April 4th, 2019


Deepanshu, Awal
★★★★★ Written by Raymond P on April 3rd, 2019

Outstanding class and information.

Raymond P, Scrum Master USAA
★★★★★ Written by Sunil Varma on April 3rd, 2019

Hi Team,
Thank you for providing online study kit. After reading few pages, I got some confident.
Anyway great learning experience and easy access for the exam also.
Regards, Sunil

Sunil Varma
★★★★★ Written by Sir Walter on April 2nd, 2019

Great course, very beneficial in the civilian sector.

Sir Walter, US ARMY
★★★★★ Written by Tissa Jayasekera on April 2nd, 2019


Tissa Jayasekera
★★★★★ Written by Miroslav on April 2nd, 2019

Straight to the point of free preparation training, also an excellent book that follows it. The value for money exceeds my expectation.

★★★★★ Written by Nimer Najajreh on March 30th, 2019

Very good

Nimer Najajreh
★★★★★ Written by Md. Mostafizur Rahman on March 28th, 2019

Very good useful and implementation for the organization.

Md. Mostafizur Rahman, Sr. Manager
★★★★★ Written by Ahmed Sayed Sayed on March 28th, 2019

You doing a greet job guys!
Wish you all the best

Ahmed Sayed Sayed, Account manager Etisalat UAE
★★★★ Written by Contayon Comlan William on March 27th, 2019

Great book !!!

Contayon Comlan William
★★★★★ Written by Dora Georgila on March 25th, 2019

Excellent book, well organised follow-up. Thank you!

Dora Georgila, Chief Integration Officer
★★★★★ Written by Selman Ozyesil on March 25th, 2019

Excellent material for study. Perfect way of self-improving!

Selman Ozyesil, Engineering Manager
★★★★★ Written by Mesfin on March 25th, 2019

Grateful for sharing the training book, and appreciate responsiveness of your people.

Mesfin, Consultant, ACTS
★★★★★ Written by Shazana on March 21st, 2019

Thank you for the opportunity and free book and trainings for the review. Now I know a comprehensive knowledge of the concepts in Six Sigma. I will aim for another tier soon, InshaAllah I will have a good score. My sincerest thank you.

★★★★★ Written by Vaidyanath on March 20th, 2019

Amazing program of Six Sigma, with excellent material for study.

Vaidyanath, Six Sigma Expert
★★★★★ Written by Elkhaer Badr Eddine on March 18th, 2019

I cannot be MORE satisfied with your services, you make daily learning very easy and efficient.
Big thanks!

Elkhaer Badr Eddine, Industrialization specialiste
★★★★★ Written by Deborah Smith on March 17th, 2019

I find the Institute a wonderful resource.

Deborah Smith, Consultatnt
★★★★★ Written by Kessiane Silva on March 13th, 2019

Amazing program of Six Sigma, with excellent material for study.

Kessiane Silva, Geologist
★★★★★ Written by Florin on March 12th, 2019

A very good way to improve your knowledge!

★★★★★ Written by Tomas Repka on March 11th, 2019

Perfect way of self-improving.

Tomas Repka
★★★★★ Written by Addi Effendi on March 9th, 2019

Great Value with smooth study.

Addi Effendi
★★★★★ Written by Christine Labarbe on March 8th, 2019

All certifications have been realized with International Six Sigma Institute and I was never disappointed. Thank you very much!

Christine Labarbe, Conseillere strategique en methodologies agile
★★★★★ Written by Esther M on March 4th, 2019

I like the mini lessons and tips provided via email every week.

Esther M
★★★★★ Written by Ahmed Mohamed Mahmoud Ibrahem on March 3rd, 2019

International Scrum Institute assisted me to gain valuable certifications in Agile Scrum. Their Project Management and Six Sigma offerings are also great. I also find their Testing Institute's curriculum to be valuable to my employees.
Scrum Institute and their affiliated entities really puts you in a different league.

Ahmed Mohamed Mahmoud Ibrahem, Student
★★★★★ Written by Alvin Abuke on March 3rd, 2019

Practical approach to Six Sigma! Free resources emailed to subscribers or interested individuals!

Alvin Abuke, IT
★★★★★ Written by Shatha Maskiry on March 3rd, 2019

It was a great and smooth experience.

Shatha Maskiry, protiviti
★★★★★ Written by Fco Javier Rivera-garcia Cigala on March 1st, 2019

Thank so much all of you for your technical support in order to do my activities in the university. Now my job is more complete attending advanced students relating six sigma topics.

Fco Javier Rivera-garcia Cigala, Industrial Engineering Professor, Nogales Institute of Technology.
★★★★★ Written by Gül Öner on March 1st, 2019

There are many quality programs that improve your career. In particular, the six sigma certification programs provide the relevant unity of practitioner standards. There are amazing ingredients on six sigma. By learning Six Sigma and applying methodologies, you can have an unimaginable impact on your future. To be successful in programs, you can open the doors of progress. Also increase your chances of finding an excellent job with another employer.

Gül Öner, ME Technical University
★★★★★ Written by Joanne Downey-hayward on February 28th, 2019

I have found the webinars, the tools and training material to be very useful and beneficial as I try to grow my knowledge and support continuous improvement initiatives within our organization.

Joanne Downey-hayward, Mgr. Business Process Improvement
★★★★★ Written by Asanka Lakmal on February 28th, 2019

Even though I am marketer by profession, I am a science graduate. Statistics was one of my favorite subjects even today. I really enjoyed your continuous helpful emails and all great content on your web portal. I read all your material.Thank you for your commitment to teach and help others!
Wish you all the success for your institute.
Thank you and Best Regards,
Asanka Lakmal

Asanka Lakmal, Senior Marketing Executive
★★★★★ Written by Dr.Viraj Atre on February 28th, 2019

My experience with International Six sigma institute was the best when it came to get myself certified in master black belt and championship. Exams were conviniently placed considering participants at the centre, sufficient time was given as well as the ease of answering the options was exercised. Certification also was processed quite fast (immediately) thereby giving the participant full satisfaction.
Overall a very nice experience. I wish ISSI, Yeliz and her amazing team good luck ahead.
Dr.Viraj Atre.
FACULTY - Operations & Quality Mgmt. India.

Dr.Viraj Atre, Faculty of Operations & Quality Mgmt / Engineering @ iFEEL Karla. Pune.
★★★★★ Written by SGM Richard Riccio on February 27th, 2019

I have taken all 6 certifications with this institute. I can say the I have really enjoyed the experience. The institute is not just about making money. It's not just about you paying for exams. The exams are not expensive for one. The institute constantly provides feedback, updates and training tips. They also provide links to seminars and other useful and amazing training opportunities on a constant basis. This is a gem that I hope many other people take advantage of.

SGM Richard Riccio, 353d Civil Affairs Command, Staten Island NY, US Army
★★★★★ Written by David on February 27th, 2019

Amazing materials on six sigma. Have learned a lot that helps me in my line of productivity consultancy.

David, Productivity Officer
★★★★★ Written by Addi on February 27th, 2019


★★★★★ Written by Sherry Guirgis on February 26th, 2019

A really useful experience, I learnt a lot!

Sherry Guirgis, Engineering Student
★★★★★ Written by George on February 25th, 2019

Great study material and good program.

★★★★★ Written by Oheji Okwoche on February 23rd, 2019

Heard it a true interesting way of learning which am hoping i have an opportunity to go through as well

Oheji Okwoche, Zone Manager WWHCL
★★★★★ Written by Evelyn on February 15th, 2019

I am so grateful to choose Six Sigma Institute (, they are very supportive and prompt in responding during the course of study. A very awesome learning site. Thank you so much.

★★★★★ Written by Reema Mathew on February 14th, 2019

Thank you so much for the awesome learning opportunity..

Reema Mathew
★★★★★ Written by Rupam Das on February 8th, 2019

Awesome guidance to practice actual six sigma techniques along with lean DMAIC tool .

Rupam Das, Celloplast
★★★★★ Written by Henry Foss on February 7th, 2019

Its awesome finding out the International Six Sigma Institute and their outstanding support team who are always there to point you to your directions to a quick and easy road to achieving success as a Six Sigma professional.
More awesome is the Institute's free e-book, 'Six Sigma Revealed', an easy and simple to follow guide for all to passing the certification exams in few hours.
Nothing can be more exciting when you get maximum value and satisfaction for your money. With the Six Sigma Institute bottom rock fees and follow ups, I was able to earn my Green and Black belt Certifications in less than 72 hours. I have also just learnt something very important that: 'Specifications have their place, and only their place'
Remarkably, this is one of my best on-line certification experiences that is worth sharing with other professional colleagues and friends.

Henry Foss, LensView Consulting Services
★★★★★ Written by Mohamed Mostafa Adam on February 7th, 2019

We are delighted to be a training organization in our local community which cooperates with International Six Sigma Institute. We see that your Institute is an important gate for a lot of our students which are interested in quality engineering & management field. You support our students to become better educated and certified in Six Sigma Methodology to be able to overcome upcoming challenges in their careers, so they successfully apply their knowledge in projects, process & products to increase efficiency and reliability of their products & services!

Mohamed Mostafa Adam, Egyptian Academy Training Manager
★★★★★ Written by Hemant Kumar on February 7th, 2019

Knowledge never ends if you will share it with others. International Six Sigma Institute offers best online platform for learning managerial and leadership skills in Six Sigma. I am really glad that many people are taking the benefits of these wonderful Six Sigma Certification Programs and develop themselves.
Thanks for your outstanding services and continuous guidance.

Hemant Kumar, Active Doctors Online, Manager
★★★★★ Written by M. Bounit on February 7th, 2019

I want to thank you for your wonderful web portal. I’m very happy with the clarity and simplicity of your certification process. Your portal is user friendly with concrete and actionable information.
I learnt how to use all the process and quality improvement tools in a very clear and simple way. Your guidance brought significant efficiency increase to my business. Thanks to International Six Sigma Institute, by using all these tools I was able to create a much more motivating project environment for my team. Although my team members knew more or less about the tools before their study with Six Sigma Institute, they were not able to properly identify when to use which tool with clear roles and duties defined for the entire team.
Your outstanding Six Sigma training content helped myself and my team, and you gave us continuous support to understand Six Sigma Methodology. Most of my associates became certified for green belt and black belt, and some showed their passion for statistics and we began in-depth training sessions to empower them with knowledge.
Your program gave us a lot of self confidence and a noticeable pulse to start our new Six Sigma projects.

M. Bounit, Almapack Lecarton, Industrial Production Director
★★★★★ Written by Florian Hayes on February 1st, 2019

First of all I want to thank for your site that I learnt quite a lot. I think, your content is very complete and gave us enough support to comprehend Six Sigma Methodology. Nowadays I am implementing Six Sigma Methodology in my project, and thanks to your training program I quickly realized where I am doing good, where I can further improve. Your program contributed huge benefit to my knowhow and experience.

Florian Hayes, Toyota
★★★★★ Written by Jill R. Hamel on January 13th, 2019

Wanted to thank your organization for providing this service!
I needed to get up and running quickly on Six Sigma and the online training and testing came very useful. I received all six certifications in one day, and I learned a lot.

Jill R. Hamel, Program Manager and Six Six Sigma Champion, Panasonic
★★★★★ Written by Jakob P. Denison on December 21st, 2018

Six Sigma is our in-house quality enhancement methodology, and it is the one nominated by most of our customers all over the world. As a consultancy & training enterprise, we have chosen International Six Sigma Institute to reinforce our own Six Sigma training programs. The strategy, of having such an excellent international partner like International Six Sigma Institute, has been proved as being the correct one to win more accounts and increase our customer satisfaction.

Jakob P. Denison, Chief Trainer, Infosec Consulting Services
★★★★★ Written by Ralph Dillman on November 18th, 2018

Overall, this is my best online certification experience so far!
The lifetime valid Six sigma Certifications from your Institute is really simple, easy and worth to its online registration, reading material and the test. The text and diagrams explain all aspects of Six Sigma very clearly leaving no room for doubts.
I got a thorough overview of the concepts which I'm rather sure of retaining (for lifetime!) and could relate to the real-projects well. As Consultants we have been doing projects along similar lines. The concepts tie these activities and roles into a Six Sigma Methodology that is more appreciated by the industry.
I wish International Six Sigma Institute many more such achievements in the future. Everything exceeded my expectations. I would definitely recommend International Six Sigma Institute to others who want to either complement their experience with certification or begin Six Sigma projects after certification.

Ralph Dillman, Senior Principal Diagnostics Devices Engineering and Six Sigma Green Belt, Roche AG
★★★★★ Written by David K. Maloney on October 9th, 2018

Six Sigma is a highly efficient methodology to keep the teams always focused on the overall quality objectives and quality of project deliverables, and to drive the everyday tasks of quality management processes in line with the business objectives. International Six Sigma Institute assured us to have right and certified talents in our Six Sigma teams.

David K. Maloney, Vice-President, Six Sigma Deployment Leader, BP
★★★★★ Written by Amanda J. Zentelis-coatos on September 13th, 2018

Thanks for such a great online Certification Program at a reasonable price! It wasn't easy to find a tailored Six Sigma Certification Program which lets me prove my professional experience and personal education in Six Sigma era.

Amanda J. Zentelis-coatos, Six Sigma Champion and Quality Assurance Manager, UBS
★★★★★ Written by Veronica K. Kos on September 1st, 2018

You have a great website and to complete the certification is a breeze. The material is great, registration is easy and the test is very thought provoking.

Veronica K. Kos, Porsche
★★★★★ Written by Peter Kon on August 27th, 2018

The learning content on your web site is really good, easy to understand and learn. It helped a lot to quickly comprehend the concepts. I will definitely recommend your web site and certifications to my colleagues and friends. Everything about the exam was also good.

Peter Kon, Bank of America
★★★★★ Written by Andy R. Rieckh on August 13th, 2018

It has been a pleasure working with International Six Sigma Institute. They supported us to develop and certify our Six Sigma knowhow rapidly and cost-efficiently.

Andy R. Rieckh, Sony
★★★★★ Written by Thomas A. Ward on July 29th, 2018

Licensing as Certified Six Sigma Master Black Belt from International Six Sigma Institute is one of the most reasonable choices I have ever done. It lets me convince and win my clients. In return I help them to truly understand, digest and apply Six Sigma.

Thomas A. Ward, Freelance Certified Six Sigma Master Black Belt
★★★★ Written by Bragadeesh Ramani on July 15th, 2018

Acquiring Certified Six Sigma Yellow Belt Certification has met and exceeded my expectations. I would have no hesitation to recommend International Six Sigma Institute’s Six Sigma Certification Programs to any other company or individual.

Bragadeesh Ramani, Alstom
★★★★ Written by Fernando Williams on July 1st, 2018

Although we called it "Six Sigma", our old process has been heavily customized for the working habits of my project leaders and subject matter experts. After having hired our new Six Sigma Experts certified from International Six Sigma Institute, we had an outstanding capacity to first start using Six Sigma methodology as it is and then iteratively customize and adapt it to our own business goals and needs.

Fernando Williams, BMW
★★★★ Written by Olusola Fadahunsi on June 23rd, 2018

I'm a finance and management professional with over 12 years work experience, based in Lagos, Nigeria. My career used to be plateaued in the last couple of years, so I decided to give it a boost by going to business school (which was a like "marathon") and then I needed a "sprint" - a qualification to give my career a quick boost - so I opted for the six sigma certification, and went in search of an online provider.
The value proposition of the International Six Sigma Institute is the most impressive among industry, so my wife has also taken the exam too. Registering for my exam was seamlessly easy, and the Six Sigma Revealed text has been very helpful. Overall this was an outstanding education and certification experience with Six Sigma Institute.

Olusola Fadahunsi, First Bank of Nigeria, Marina, Lagos
★★★★★ Written by Fawaz Abdullah on June 12th, 2018

First of all I want to thank your organization for your efforts to provide a clear, understandable and yet free of charge book. And many thanks for your outstanding, quick and competent customer service department which enabled for me a delightful student journey with you guys.
During these days Six Sigma knowledge carries heavy credits in my professional achievements and thank you International Six Sigma Institute for teaching me key tools and techniques to accomplish my Six Sigma projects. Well done!

Fawaz Abdullah, SPM/Najran at Saudi Oger Construction Ltd.
★★★★★ Written by Manish Kumar on May 4th, 2018

I completed my Six Sigma Master Black Belt certification. It was a great learning experience with Six Sigma Institute. It is a simple process to take admission, trustworthy brand, good and clear study material and most importantly the most cost effective certification in the entire Six Sigma Education market. I am happy with the entire process, which helped me achieve my career goals and also enhance my hands-on skills and knowhow.

Manish Kumar, Continual Business Solutiosn Pvt. Ltd., Founder, Managing Director
★★★★★ Written by Lloyd Bumanglag on April 23rd, 2018

I have taken the Scrum Master and Product Owner, Six-Sigma certification courses, and more recently the Project Management certification. I passed all the exams the first time, thanks to the awesome instructions and organized materials. I believe the quality of the course outline, greatly helped me to prepare for the type of questions on the exam. Certifications are a very good way of ensuring everyone reaches a common level of understanding. At the end of the day, it basically comes down to certifications being an internationally recognized credential. If you can put that on your resume, you'll have a competitive edge over another individual who doesn't have it. Thank you for preparing me for these exams and for your encouragement and support to succeed! I highly recommend taking your certification courses to anyone wishing to advance in the corporate ladder!

Lloyd Bumanglag, Guthy Renker, LLC, California USA
★★★★★ Written by Joel Oosthuizen on March 13th, 2018

International Scrum Institute assisted me to gain valuable certifications in Agile Scrum. Their Project Management and Six Sigma offerings are also great. I also find their Testing Institute's curriculum to be valuable to my employees.
Scrum Institute and their affiliated entities really puts you in a different league.

Joel Oosthuizen, Senior Consultant: Agile, Deloitte