3 Six Sigma Certification Providers and Award Types in 2026

Six Sigma certification needs an issuer's name beside it. The same belt colour can sit on awards with different entry rules and assessments. Compare what you must show, what is tested and who awards the credential before choosing a course. A course or certificate does not guarantee a job or higher pay.

The short answer

The three routes here serve different needs. ASQ has professional certification rules tied to its named belt awards. The Council for Six Sigma Certification has its own exam routes and advanced project-based levels. ExpertRating provides a first learning option and its own certificate.

They are not interchangeable awards. A provider's description of recognition does not show that every employer accepts it. If a vacancy names ASQ, ask for the exact credential instead of substituting another Green Belt award.

This comparison uses current official pages, Checked November 2026. The selection basis is award type and rules.

Our top 3 picks

1. 1. ASQ: named professional credentials with belt-specific entry rules.
2. 2. Council for Six Sigma Certification: its own exam and advanced-level routes.
3. 3. ExpertRating: introductory learning and an ExpertRating-issued certificate.

Sources: ASQ Green, ASQ Yellow, ASQ renewal, Council Green and ExpertRating course terms.

ASQ lists the CSSYB exam fee at $434, with $100 off the initial fee for members. A retake is $234. Training and membership cost extra. Source: ASQ Yellow Belt fees. Checked November 2026.

ASQ lists the CSSGB exam fee at $483, with $100 off the initial fee for members. A retake is $283. Training and membership cost extra. Source: ASQ Green Belt fees. Checked November 2026.

1. ASQ certification route

Best fit: a learner whose intended work or employer requirement calls for a given ASQ credential, and who can meet its conditions. The main limit is that training enrollment does not show certification entry rules.

ASQ's Certified Six Sigma Yellow Belt (CSSYB) has no education or experience requirement. Its Certified Six Sigma Green Belt (CSSGB) requires three years of relevant full-time paid work. ASQ says there is no education waiver for Green Belt. A degree or short course cannot simply replace that requirement.

The application and exam belong to ASQ. Training can be bought separately from ASQ or another provider. But any preparation needs to match the current body of knowledge. A course title alone is not evidence that its syllabus matches the exam version you will take.

ASQ's credential pages list computer-delivered and other exam details. Read the rules for your chosen delivery. Check reference material and ID rules too. Open book describes which reference materials the exam permits.

Cost and continuing obligations

ASQ's checked pages list initial exam fees of $434 for CSSYB and $483 for CSSGB, with member savings listed separately. Optional books, courses and retakes are not the same expense as initial exam entry. Source: Yellow and Green fee sections, Checked November 2026.

ASQ lists Yellow and Green as lifetime certifications. They have no recertification rules. Black Belt is different and has a three-year cycle. Check the maintenance rules for the exact belt you intend to earn.

What to check before applying

Write down the exact award name and why it fits your purpose. Compare your experience with the body's rules. Then list the knowledge gaps that preparation should address. If the entry rules gap is real work experience, another exam-prep purchase does not close it.

View at ASQ. Start from the credential page rather than a training advertisement. Keep its current eligibility and body-of-knowledge documents with your planning record.

2. Council for Six Sigma Certification route

Best fit: someone choosing a Council-issued award after comparing its assessment with the intended use. Its standard Green Belt and advanced Level II route need to be read as different awards.

The Council's standard Green Belt page states that there are no entry requirements and no project requirement for that certification. It offers a standard exam and a self-study exam path. The page also names advanced Level II as a separate route with project participation rules.

The standard exam is described as a single open-book assessment against the Council's body of knowledge. The self-study path uses chapter exams and can award levels as the learner progresses. Those formats place different demands on preparation and scheduling. Do not assume that a choice between them is only a price choice.

Source: Council Green Belt routes, Checked November 2026. The issuer's path descriptions, attempt limits and time conditions govern the chosen route.

Knowledge evidence and project evidence

Passing the standard Green Belt assessment is evidence of that provider's tested knowledge. Because the standard route has no project requirement, it should not be described as proof that every holder completed an assessed live project. The difference matters if an employer or sponsor wants practical project evidence.

If you want advanced project assessment, read the Level II conditions separately. Identify what project participation means and who must verify it. A simulation can teach the process. It need not meet an advanced award's evidence rules.

Cost and renewal limits

The Council's page lists different paid paths and free self-study materials. Its displayed price summaries and a broken price field elsewhere on the page make the exact chosen checkout terms worth checking directly. Check the Council's current exam options for the route you choose.

The Council says its certifications have no expiration date. It also provides a verification register. That is its own policy. It does not show employer acceptance equal to an ASQ credential. Nor does it prove a holder's practical knowledge stays current for life.

View at Council for Six Sigma Certification. Choose the exact path, then check its exam and advanced-award conditions.

3. ExpertRating learning and its own certificate

Best fit: a learner seeking a lower-cost first course in the method, while keeping professional certification separate. ExpertRating Six Sigma Green Belt Certification is the provider's own course and certificate. It is not ASQ CSSGB.

The current syllabus is organised around DMAIC. It starts with process definition, measurement and analysis. Improvement and control follow.

The programme page lists online courseware, examples and a final multiple-choice exam. Those facts show an introductory learning product. They do not show independent recognition by another issuer.

ExpertRating's own page states a clear limit. Its credential is not affiliated with, approved by or equivalent to ASQ or IASSC certification. That limitation should remain visible whenever the course is compared with those awards. The word certification in the product name does not transfer another body's credential.

Source: ExpertRating Green Belt syllabus and award terms, Checked November 2026.

Current fee and inclusions

The official page lists $99.99 for the initial course and provider exam. It lists a $20 retake charge and a $30 renewal option after one year. An optional hard copy costs extra. These are ExpertRating's published terms, Checked November 2026, not a fee for ASQ certification.

Count those items according to what you actually need. An optional hard copy is not a required professional exam. A retake is a possible later cost instead of a charge every learner necessarily pays. Check any extra charge before adding it to your budget.

Its useful place in a plan

Use a first course to learn vocabulary and methods you can practise. For example, a learner might want to understand a process map before participating in a team discussion. That is a more specific purpose than treating a short certificate as proof of project leadership.

If the intended job requires ASQ, return to ASQ's entry rules and exam route. If the purpose is a project, name the actual work and access needed. A first course can help you learn without completing either of those separate tasks.

Factors to consider when choosing an issuer

Name the award you actually need

Start with the employer, project or learning requirement. If it says ASQ CSSGB, keep that exact name in the plan. An employer may ask for general process-improvement knowledge. Compare content and assessment. Do not assume a given issuer is mandatory.

Ask employers in your target field which awards they accept. A provider can describe its syllabus and award conditions. Check the relevant employer's own requirement for acceptance. A claim that a credential is globally recognised does not replace it.

Compare assessment rather than colour

Write down whether the route tests knowledge, assesses a project or does both. Check the current exam format and body of knowledge. Then ask what evidence you will have at the end. A completed course and a verified project should not share an unlabeled evidence field.

For a beginner, an exam with no experience prerequisite may be possible while a relevant-work route remains unavailable. That does not mean the beginner has the same work evidence as an experienced applicant. Keep entry rules and practical readiness separate.

Check training and total cost

Some routes charge separately for teaching and assessment. Others bundle a course with the provider's exam. Compare tuition, exam, materials, software and renewal as separate cost items. Count a voucher only once and check its expiry conditions.

Do not call an amount you still need to check free. A complete total needs every required charge, while a known subtotal can be useful if missing items are listed. A low first-course price should not be compared with a full professional route without those differences stated.

Check verification and currency

Keep the issuer's verification route with the award record. It helps distinguish a provider's genuine certificate from a claim in a résumé. Verification shows the award status reported by that issuer. It does not prove every workplace skill.

Also record the body-of-knowledge or syllabus version used. A non-expiring certificate and current skills are different questions. Study may need updating even when the issuer does not charge a renewal fee.

Put the decision in writing

A short comparison note can prevent a mistaken purchase. Record the intended use, exact award and issuer, then the rules you meet. Add the missing evidence, assessed work and full fee components. If the intended use is simply introductory learning, state that instead of assigning a professional credential you do not need.

Imagine a employer asks specifically for ASQ CSSGB. An introductory course with a similar belt name may still teach useful concepts. But it does not satisfy that stated award requirement. The applicant needs the ASQ route or a clarification from the employer, not a renamed course certificate.

Imagine instead a team member wants to understand DMAIC before joining discussions. A first course may serve that learning goal without being presented as an external professional award. The difference is the purpose, not a claim that one provider is best for every situation.

Keep any later change in the plan explicit. If the target role or issuer changes, recheck entry rules and assessment. Do not carry forward an assumed voucher, project requirement or renewal policy from the old route.

The full award name should remain visible in the final comparison record, with no implied external equivalence.

Check what you can show after completion

Imagine writing the award in a work application. You should be able to name the issuer and explain the assessment without relying on a broad claim of recognition. If the route involved a knowledge exam, say that. If it involved a live project, explain your part and the assessment actually completed.

A course record can also be described accurately. You can say which subjects you studied and which exercises you completed. There is no need to rename the result as another body's credential or invent a project to make the study sound worthwhile.

This is especially useful when the same colour appears across providers. The colour is a shorthand. The issuer and evidence explain the achievement. An employer can then assess that record against its own work instead of guessing what Green Belt means in the particular case.

Decide what to leave out of the comparison

A provider testimonial cannot tell you what you would earn or save. Compare the course work and award rules, then ask target employers which skills and credentials they need.

Read the course syllabus and look at the support offered before choosing how to study. The useful published evidence is the syllabus, assessment, support and terms of the actual route. Ask the provider about any term that affects your choice. Choose the route that meets your learning needs and the role's entry rules.

Compare belt and training routes

Return to the Six Sigma guide to choose the relevant belt and learning path. That guide explains the method first and links to the belt-specific and training comparisons.

The practical sequence is issuer, entry rules, assessment and then preparation. If the purpose is learning instead of a named award, say so. That keeps a first course useful without overstating what it certifies.

Questions about recognition

Is every Green Belt certificate equivalent?

No. Providers can use the same colour while applying different entry requirements, exams and project rules. Name the issuer and exact award. If an employer specifies one credential, another provider's similar title is not proof that it meets the requirement.

Does ExpertRating award ASQ certification?

No. ExpertRating issues its own certificate. Its page states the difference from ASQ and IASSC. Introductory learning can help with the subject. But the ASQ professional credential remains subject to ASQ's application, experience and exam rules.

Is a project always required?

No. Requirements depend on the exact provider and level. The Council's standard Green Belt route has no project requirement, while its advanced Level II route does. ASQ Black Belt has project evidence routes. Check whether your chosen award requires a project before paying for preparation.

How do I check employer acceptance?

None is treated here as universally accepted. Check the intended employer's stated requirement and compare the actual award. Six Sigma certification should describe what a named issuer assessed. Name the credential accurately on an application.