Courses
Courses
Online Lean courses
White belt (free!)
Yellow belt
Orange belt
Green belt
Black belt
Affordable Lean packages
Online Six Sigma courses
Lean Six Sigma White Belt
Lean Six Sigma Yellow Belt
Lean Six Sigma Orange Belt
Lean Six Sigma Green Belt
Lean Six Sigma Black Belt
Affordable Six Sigma packages
Classroom and in-company training

Lean.nl also offers classroom Lean and Lean Six Sigma training. We organize our day and evening courses throughout the Netherlands.

Read more
Online workshops

Don't immediately choose a course for you: just get the knowledge and tools that you can use right away.

Read more
How it works
Pricing
Companies
Knowledge
About
Contact
Start now or discover how Dmaic.com works
Log in Start now
Expand menu
Knowledge base

Try the demo and find out for yourself!

Would you like to get acquainted with our learning platform? You can experience what an online Lean training entails by trying out our demo training and discover how complete and versatile our online training courses are.

Try our free demo

When have I passed the Lean Green Belt course?

You have passed the Lean Green Belt course once you have completed all the lessons and successfully answered all the associated quiz questions. The Green Belt course includes a practical assignment that you complete during the Lean course. This ensures you are directly certified for practical application, without any additional costs or need for further guidance afterward.

Anend Harkhoe
Lean Consultant & Trainer | MBA in Lean & Six Sigma | Founder of Dmaic.com & Lean.nl
With extensive experience in healthcare (hospitals, elderly care, mental health, GP practices), banking and insurance, manufacturing, the food industry, consulting, IT services, and government, Anend is eager to guide you into the world of Lean and Six Sigma. He believes in the power of people, action, and experimentation. At Dmaic.com and Lean.nl, everything revolves around practical knowledge and hands-on training. Lean is not just a theory—it’s a way of life that you need to experience. From Tokyo’s karaoke bars to Toyota’s lessons—Anend makes Lean tangible and applicable. Lean.nl organises inspiring training sessions and study trips to Lean companies in Japan, such as Toyota. Contact: info@dmaic.com

Online Lean courses
100% Lean, at your own pace

Start now

Most popular article

Background

What is Lean?

What is Lean? An Exploration of Definitions When you Google “Lean,” you’ll find various definitions. Some refer to it as a type of...

Read more
Background

Mastering Lean Efficiency: Understanding and Eliminating the Eight Wastes (Muda)

  Understanding the Concept of Muda (Waste) in Lean What is Muda? Muda, a critical term in Lean methodology, refers to activities within...

Read more
Background

5S Method: Maximizing Workplace Efficiency

What is 5S? An Introduction to the Lean Methodology In the quest for continuous improvement in the workplace, the 5S method stands out...

Read more
Realization by Basticom