I was very impressed with Sissel's Lean Six Sigma knowledge. She makes it easy to identify improvements and create results.
Daryl Powell
Research Manager, Sintef Manufacturing
Online Courses from GLSS
Lean Six Sigma Yellow, Green & Black Belt
Learn structured problem-solving that builds trust and culture - not just fixes processes.
#1 Rated • Learn By Doing • 24/7 Support • Trusted by 7,000+ Companies
Yellow Belt (GLSS)
This online course teaches you how to improve your own processes by:
- Defining clear goals
- Gathering information about root causes
- Implementing effective solutions
Green Belt (GLSS)
This online course teaches you to lead improvement projects that deliver significant results:
- DMAIC methodology (Define, Measure, Analyze, Improve & Control)
- Data analysis and process mapping
- Root cause analysis tools
Black Belt (GLSS)
This online course teaches you advanced methods to:
- Lead improvement programs
- Strengthen your leadership skills
- Perform statistical analysis
- Coach and support others
Black Friday offer
Full access to all courses and certification for 3 months (including new Leadership course)
(offer valid through November)
What Do You Get?
- Full access to all four certifications
- Study at your own pace
- Globally recognized certificates
- 3 months of access
Price Comparison
| Course | Price per year | Membership 3 months |
|---|---|---|
| Yellow Belt | $99 | ✓ Included |
| Green Belt | $599 | ✓ Included |
| Black Belt | $999 | ✓ Included |
| Total | $1,697 | $95 |
About GLSS and Ethical Efficiency
GLSS was founded by Karlo Tanjuakio with one vision: Lean Six Sigma that builds culture - not just fixes processes.
He calls it "Ethical Efficiency" - the balance between productivity and responsibility for people.
As he writes in his Forbes article:
"Let's not just do things right; let's do the right things."
What Do Organizations Say About GLSS?
"GLSS does a great job explaining Lean Six Sigma in an easy to follow format – and that's not an easy task."
- Scott Lamon, Continuous Improvement Manager, London Drugs
"With GLSS, we were applying the tools to a real project which solidified learning much better."
- Eunjoo Greenhouse, Deputy Director, King County
"What enabled us to reach our goals was the accessibility and user-friendly design of the GLSS platform—its remote learning model, self-guided structure, and overall affordability."
- David Welsh, Vice President of Operations, Radial
GLSS is chosen by Fortune 500 companies, government agencies, and over 3,000 universities worldwide.
