Top 10 Six Sigma Certification Providers
Introduction
Six Sigma remains one of the most recognized methodologies for process improvement, quality management, and operational excellence. From manufacturing to healthcare to finance, Six Sigma certifications are valued because they demonstrate structured problem-solving skills, statistical thinking, and the ability to reduce variation.
But with so many providers offering Six Sigma training — from online courses to university programs — it can be difficult to decide where to invest your time and money. Here’s a list of ten well-regarded providers offering Six Sigma certifications at various levels (Yellow Belt, Green Belt, Black Belt, Master Black Belt).
Selection Criteria
The providers listed here were chosen because they:
Offer globally recognized certification (not just a course completion badge).
Cover DMAIC, Lean Six Sigma, and statistical methods in depth.
Provide flexible learning formats (online, classroom, hybrid).
Are trusted by employers across industries.
Have positive learner feedback and industry adoption.
Top 10 Six Sigma Certification Providers
| # | Provider | Formats | Levels Offered | Highlights | Link |
|---|---|---|---|---|---|
| 1 | ASQ (American Society for Quality) | Online, classroom, hybrid | Yellow–Master Black Belt | Global gold standard, highly recognized by employers. | asq.org |
| 2 | IASSC (International Association for Six Sigma Certification) | Accredited providers worldwide | Yellow–Black Belt | Independent certification body, exams via Pearson VUE. | iassc.org |
| 3 | Excedify – Lean Six Sigma Certification | 100% online, self-paced | Yellow & Green Belt | Focused on practical engineering & manufacturing examples, flexible schedule, free preview. | excedify.com |
| 4 | Coursera / edX (University-backed) | 100% online | Yellow–Green Belt | Partnered with Georgia Tech, University of Michigan, etc. | coursera.org / edx.org |
| 5 | Purdue University – Lean Six Sigma Online | Online (self-paced, 10 weeks) | Green & Black Belt | University-backed certificate, strong academic foundation. | purdue.edu |
| 6 | Villanova University – Six Sigma Certification | Online, live | Green & Black Belt | Well-regarded US program with interactive sessions. | villanovau.com |
| 7 | TÜV SÜD – Lean Six Sigma Certification | Classroom & hybrid | Yellow–Black Belt | Strong credibility in Europe, corporate training focus. | tuvsud.com |
| 8 | GoLeanSixSigma.com | 100% online | Yellow–Black Belt | Affordable, accessible, practical exercises. | goleansixsigma.com |
| 9 | Udemy – Lean Six Sigma Courses | 100% online | Yellow–Black Belt | Very low cost entry, but variable instructor quality. | udemy.com |
| 10 | Skillshare / LinkedIn Learning | Online | Introductory | Great for quick overviews, not formal certifications. | linkedin.com/learning |
Key Takeaways
Highest recognition: ASQ, IASSC, TÜV SÜD, Purdue, Villanova.
Practical and flexible: Excedify, GoLeanSixSigma, Coursera.
Budget-friendly intros: Udemy, LinkedIn Learning.
Corporate relevance: TÜV SÜD (Europe), ASQ/IASSC (global).
Conclusion
Choosing a Six Sigma certification depends on your goals:
If you need global name recognition, ASQ and IASSC stand out.
If you prefer practical, flexible online training with engineering examples, Excedify is a strong option.
If you’re looking for university prestige, Purdue or Villanova are worth considering.
👉 You can try the free preview of Excedify’s Lean Six Sigma Certification here to see if the format and examples fit your learning style:
Excedify – Lean Six Sigma Certification