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International Six Sigma Institute™ is part of the professional community represented by this corporate membership.
OFFICIAL SIX SIGMA CERTIFICATION
Solve process problems and lead departmental and cross-functional improvement projects with Six Sigma.
Take your online, multiple-choice certification exam on your own computer, wherever you are in the world.
Your examination and certification cost $69 USD in total. No hidden costs or fees. Answer at least 60% of the questions correctly to pass and earn your certification.
YOUR PATH TO CERTIFICATION

See how other professionals benefit from our worldwide-recognized Six Sigma certifications. Read our industry feedback and meet our certification owners.
Have more questions? Explore the Frequently Asked Questions. You can also view our sample certification test questions to see what your examination questions look like.
Register for CertificationWe provide a 100% money-back guarantee. Yes, you read that correctly.
If you do not pass during your first attempts, we will reactivate your exam access code up to 10 times at no charge. You can retake your examination without any additional fees.
If you still do not pass your last attempt, we will refund your full registration fee, hassle-free and without asking questions.
Your examination and certification are all included for $69 USD. No hidden fees. Ever.
YOUR FREE PREMIUM ONLINE TRAINING
We created your training with a consortium of renowned business and people leaders, Six Sigma coaches, mentors, experts and authorities from all major industries. Everyone visiting International Six Sigma Institute™ can access it. Find the materials through Your Free Six Sigma Book and Your Free Premium Six Sigma Training in the top menu.
These materials are the copyrighted intellectual property of International Six Sigma Institute™. We share them freely with everyone because sharing our expertise serves Six Sigma professionals and helps the field develop.
Your Certified Six Sigma Green Belt™ (CSSGB™) Certification examination uses multiple-choice questions. Read your online training to gain the know-how to pass your examination and earn your Certified Six Sigma Green Belt™ (CSSGB™) Certification.
We guarantee that your free premium online training will make you pass your Certified Six Sigma Green Belt™ (CSSGB™) Certification Exam!
For you, your employers and your clients.
Certified Six Sigma Green Belts are practitioners skilled in solving most process problems. They are usually selected from process leaders, process owners, professional staff, operational specialists, managers and executives. They understand business processes thoroughly, combine leadership skills with an awareness of profit and savings, and apply statistical analysis.
They typically work on Six Sigma projects with an estimated profit increase or cost reduction of at least USD 50,000 and can complete as many as five such projects a year. They lead departmental, internal business-unit and cross-functional improvement projects that do not require extremely complex process analysis or statistics.
They teach and support Six Sigma teams and other employees in applying Six Sigma tools and strategies. They discover, test and sponsor new tools, methods, techniques and strategies for process improvement and problem solving, and identify opportunities for new Six Sigma projects.
Choose your Accredited certification and complete your registration.
Your personal exam access code is delivered instantly by email.
Study your free training and answer your 50 multiple-choice questions online.
Receive your worldwide-valid certificate and verifiable digital badge.

International Six Sigma Institute™ is part of the professional community represented by this corporate membership.
Professionals from these organizations choose our certification programs.
Six Sigma education and certification should be accessible to everyone, in developed and developing countries alike. That is why we built innovative, economical, fully online programs for you.
We have been asked thousands of times why our programs start at just $49 USD despite our worldwide popularity, authority and credibility. The answer is simple: $49 USD is at least a day’s wage in three quarters of the world’s countries. We can only help the world and fulfill our purpose by keeping our programs affordable for you and everyone else.
More than 673,400 people have earned our accredited Six Sigma certifications, with worldwide credibility and acceptance.
Your success stories tell us what that recognition means: getting hired, doing outstanding work with a new team, building multimillion-dollar companies and everything in between. Read Our Reviews and Success Stories.
A consortium of selected Six Sigma teams, practitioners, experts and authorities developed these programs. They bring international recognition from every industry and all leading organizations that use modern, advanced Six Sigma and DMAIC methods to improve quality and solve problems.
We built personalized programs around your career goals and ambitions. We are your partner in developing new skills and credentials.
No queues, schedules or appointments. Take your rapid, online certification exam from your own computer, anywhere and anytime. Simple, quick and powerful. Just what a busy life needs.
No mandatory classroom training. Other certification programs have required professionals to attend expensive classroom courses. We value classroom learning, and we also value knowledge gained through reading, self-study, other learning methods and experience. You do not have to attend classroom training before earning your Six Sigma certification with us.
Join the largest and fastest-growing Six Sigma community, with over 673,400 holders of Certified Six Sigma Green Belt™ (CSSGB™) Certification, Certified Six Sigma Black Belt™ (CSSBB™) Certification, Certified Six Sigma Master Black Belt™ (CSSMBB™) Certification, Certified Six Sigma Champion™ (CSSC™) Certification, Certified Six Sigma Deployment Leader™ (CSSDL™) Certification, Certified Six Sigma Yellow Belt™ (CSSYB™) Certification, Certified Six Sigma Trainer™ (CSSTRA™) Certification and Certified Six Sigma Coach™ (CSSCOA™) Certification.
We are committed to supporting you and your community with unique content, expert tips and real-life recommendations on Six Sigma and DMAIC quality improvement, problem solving and quality assurance subjects that matter to you.
Worried about failing your exam? We provide a 100% money-back guarantee. Yes, you read that correctly.
If you do not pass during your first attempts, we will refund your full registration fee, hassle-free and without asking questions.
Your certifications are valid for life and recognized worldwide. No renewal fees or redundant subscriptions that do not serve you.
Other programs issue certificates that expire after a few years or less and treat renewal as an easy source of income. We believe the fundamentals at the core of Six Sigma do not change in ways that justify continuous exams to revalidate your proficiency.
Six Sigma offers endless ways for companies to tailor its practices or combine them with other project, process, quality improvement, development and engineering frameworks to fit their needs and environment. That flexibility should not be confused with an evolution of Six Sigma itself.
A high-quality, premium online certification experience at the world’s most reasonable and economical Six Sigma certification prices.
Your premium online training is free on this portal. It helps professionals like you build the knowledge to pass your exams and earn your accredited certifications.
We guarantee you will pass your certification exam with your free premium online training.
You love Six Sigma. So do we. We also love what we do: serving you and your community unconditionally.
Your community has told us, time and again, that people feel our passion and loyalty in every online and personal interaction. We work to make every interaction perfect and give you an outstanding certification experience.
We do everything in our power, 365 days a year, to provide the world’s best Six Sigma certification experience. Every day, we go the extra mile to make it even better.