The Green Belt Accelerator starts January 19. Enroll by October 31 for a free 30-minute project-scoping session with Doug or Marco.

Green Belt

Work Stream Academy Lean Six Sigma Green Belt certified badge

Green Belt Training

Green Belt training provides a deep dive into Lean Six Sigma tools and DMAIC methodology. Participants will complete a real-world improvement project with the support of a Master Black Belt Mentor. This course is ideal for professionals looking to lead improvement efforts within their departments.

Work Stream Academy

Green Belt Training at a glance

  • FormatLive instruction online or in person, with a hybrid option available, plus required project work
  • Length80 hours
  • Course accessLasts 6 months after completion
  • PrerequisiteNone; completing White or Yellow Belt first is encouraged
  • Project and mentorA real-world improvement project with 1:1 mentorship from a Master Black Belt
  • Who it's forProfessionals who want to lead improvement efforts within their departments
  • CertificationWork Stream exam, 80% to pass, two attempts

FAQ

Frequently asked questions

How long does Green Belt certification take?

The Green Belt course is 80 hours. You can take it live online or in person, with a hybrid option available, and it includes required project work, so you apply the tools on a real improvement project as you learn. Enrolling a team? Group discounts available.

Do I need Yellow Belt before Green Belt?

No. Green Belt has no prerequisite. We do encourage completing White Belt or Yellow Belt first, especially if you are new to Lean Six Sigma, because it makes the Green Belt material easier to apply.

Does Green Belt include a real project?

Yes. Every Green Belt participant completes a real-world improvement project that must demonstrate practical application of the tools. You are supported throughout by 1:1 mentorship with one of our Master Black Belts.

What does Green Belt training cover?

Green Belt provides a deep dive into Lean Six Sigma tools and the DMAIC methodology. It is ideal for professionals who want to lead improvement efforts within their departments.

How do I pass the Green Belt certification exam?

Work Stream runs its own certification exam. You need a score of 80% or higher to pass, and you get two attempts.

Is the training aligned with ASQ?

Work Stream's content follows ASQ guidelines and can be tailored to your organization's needs.

Do you offer group or team enrollment?

Yes. Group and team enrollment is available, with discounts available. Email info@workstreamconsulting.com to discuss options for your group or team.

Voices from Real Learners

  • I’ve taken other Six Sigma courses, but Work Stream’s White Belt training actually connected the dots to my daily responsibilities. Having access to a Master Black Belt, even at this level, made all the difference.
    Erica W. Quality Tech | Automotive Manufacturing
  • The Yellow Belt program was far from the typical ‘click-next’ kind of course. This training forced me to apply what I learned, and the mentorship from a Master Black Belt ensured I was doing it right, not just checking a box.
    Jordan P. Process Engineer | Aerospace & Defense
  • What sets Work Stream apart is the real-world accountability. During Green Belt training, my mentor pushed me to take on a project that actually improved a critical process in our facility. This is a certificate that drives real change.
    Michelle R. CI Manager | Industrial Equipment Manufacturing
  • Every module in the Green Belt course tied directly back to our operations. The Master Black Belt mentorship wasn't a nice-to-have, it was essential. I’ve never felt more confident applying Six Sigma tools on the job.
    Aaron F. Supplier Quality Engineer | Defense Industry
  • Work Stream’s programs don’t just teach, they transform. If you’re looking for another passive, online course, this isn’t it. But if you’re ready to work through real scenarios with expert guidance, this is the gold standard.
    Tanya S. Operations Lead | Aerospace Components
Projects Completed
5 K+
Clients Empowered
500 +
Cost Savings Delivered
$ 2 B+
Years of Experience
30 +
Professionals Trained
6500 +

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Cover of the guide Which Lean Six Sigma Belt Is Right for Your Team?

Not sure which Belt fits your team?

Our free guide compares every Belt side by side, with hours, projects and prerequisites, plus a 5-question self-check.

Ready to enroll?

We designed Work Stream Academy to help professionals not just earn their belts, but use them to drive improvement, solve problems, and advance their careers.

Questions first? Get in touch, call (781) 267-4387, or email info@workstreamconsulting.com Previous step: Yellow Belt training. Next step: Black Belt training. Download the Which Belt guide or compare all Belts in the Belt comparison table.

Inquire Now

Lean Six Sigma