The International Six Sigma Association Board is a professional certification body dedicated to advancing excellence in quality and process improvement worldwide.
Who We Are
The International Six Sigma Association Board (ISSAB) is a leading certification body providing world-class Lean Six Sigma education and credentials to professionals across all industries and geographies.
We believe that quality improvement is a universal language. Whether you work in healthcare, manufacturing, finance, technology, or any other field — the principles of Six Sigma apply, and our certifications reflect that universality.
To make world-class Six Sigma certification accessible to every professional globally — providing rigorous, industry-aligned credentials that are designed for professional recognition across industries.
A world where every organization has access to skilled Six Sigma professionals who drive continuous improvement, eliminate waste, and deliver measurable value — regardless of geography or industry.
Core Values
Every decision at ISSAB is guided by these principles — from curriculum design to how we support our students.
We hold our curriculum and credentials to the highest global standards, aligned with international best practices.
Quality education should be available to everyone — that's why we offer a completely free White Belt certification.
We don't just certify knowledge. We certify the ability to apply Six Sigma in real operational environments.
Our programmes focus on applying Six Sigma in real workplaces — because employers hire expertise, not generic knowledge.
Your certification is valid for life. No renewal fees, no recertification requirements — ever.
We provide responsive e-mail support, up to 5 exam attempts per belt, and clear rules at every step.
Certification Pathway
ISSAB offers a complete certification pathway from foundational awareness to strategic mastery — covering all 15 chapters of the Six Sigma body of knowledge.
Our Promise
When you choose ISSAB, you are choosing a certification body that puts your success first — at every step of your journey.
Every course is built on the internationally established Six Sigma body of knowledge.
Every certificate carries a unique ID that anyone can check instantly at issab.org.
No renewal fees. No recertification. Your credential is yours forever.
Included in every plan, with no additional fee for re-sits.
Our support team answers your account, access and certificate questions by e-mail.
ISSAB credentials reflect globally applicable knowledge and skills.
Start your professional journey with ISSAB.