Official Six Sigma Certifications

Six Sigma Institute™ AI Assistant

The World’s First and Only Six Sigma AI Assistant

Ask about Six Sigma and see how the Six Sigma Institute™ AI Assistant can help.

Meet Six Sigma Institute™ Guide, Your AI Assistant Across the Site

Have a question about Six Sigma or wondering which certification fits your goals? Ask Guide. It can explain concepts, find the right training, and walk you through registration or exam access. If you need our team to step in, Guide can send us a support ticket for you.

If Guide is minimized, click or tap its icon in the bottom right corner to open it.

For example: How do I choose the right Six Sigma process improvement tools?

Use up to 128 characters.

The AI assistant provides general information. Its answers do not replace advice from a trained Six Sigma professional.

Six Sigma Revealed, Second Edition

Your Free Premium Training

Get Six Sigma Revealed, Second Edition

Renowned business and people leaders, Six Sigma coaches, mentors, experts, and authorities across major industries created this training. Every visitor can use it through the Free Book and Free Premium Training links in the top menu.

International Six Sigma Institute™ owns the copyright. We make the materials freely available to everyone because sharing our expertise helps Six Sigma professionals and advances the field.

Your certification exam uses multiple-choice questions. Studying the training will give you the knowledge to pass and earn your certification. We guarantee that you’ll pass your Six Sigma certification exam with our free premium online training.

Your Path to Certification

Take the Next Step

  1. 01

    Register Online

    Choose your Accredited certification and complete your registration.

  2. 02

    Receive Your Access Code

    Your personal exam access code is delivered instantly by email.

  3. 03

    Prepare & Take Your Exam

    Study your free training and answer your 50 multiple-choice questions online.

  4. 04

    Earn Your Lifetime Credential

    Receive your worldwide-valid certificate and verifiable digital badge.

Register for Certification
Sample Certified Six Sigma Green Belt™ (CSSGB™) Certification

Our Student Community

Your Certifications Have Helped Hundreds of Thousands of People Succeed

Leading organizations trust the official Six Sigma certifications from International Six Sigma Institute™.

Organizations represented in the Six Sigma Institute community
MicroTrain Technologies training and certification community

Celebrating MicroTrain Technologies

We congratulate our outstanding partner MicroTrain Technologies in Chicago, United States, and its valued trainees on their successful Certified Six Sigma Green Belt (CSSGB) training and certification programs.

We’re proud that their success story was featured on LinkedIn.

Read Their Success Story
Agile Alliance corporate member

Agile Alliance Corporate Member

International Six Sigma Institute™ is part of the professional community represented by this corporate membership.

Chosen by Professionals at Leading Companies

Professionals from these organizations choose our certification programs.

  • NVIDIA
  • Apple
  • Microsoft
  • SpaceX
  • Alphabet
  • Meta
  • Tesla
  • Netflix

Hear from the People Who Chose Us

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, Six Sigma Black Belt, Toyota

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 Sigma Champion, Panasonic

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

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

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

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