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Certified Lean Six Sigma Green Belt (2026) (Udemy.com)

Lean Six Sigma Green Belt training: DMAIC tools, Excel Templates, and Strategies to Solve Problems and Cut Waste

Created by: Ray Harkins

Last updated August 2026

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What you will learn

  • Beginner through intermediate Lean Six Sigma problem-solving strategies and concepts
  • Lean Manufacturing tools like Value Stream Mapping, OEE, Takt time, Cellular Manufacturing and SMED
  • Six Sigma tools like descriptive statistics, control charts, pareto analysis and capability analysis
  • Business finance tools like Breakeven Analysis, Cost of Quality, Economic Order Quantity, and Payback Period
  • Introductions to advanced strategies like Predictive Maintenance, Regression Analysis, Design for Assembly and Layered Process Auditing
  • Lots of downloadable Excel-based templates you can use at your own company
  • Advanced decision-making tools and approaches including Theory of Constraints, Change Management, Team Development and the value of Prototyping
  • A thorough overview of the best and most effective Lean Six Sigma Tools from a continuous improvement leader
  • Key concepts of Quality Engineering and Quality Management

How it compares

Against the other 1,210 rated Udemy courses in Business on CourseDuck:

  • Rating4.7 out of 5higher than 90% of them
  • Reviews1,414#367 of 1,211 by number of reviews
  • Length9.9 hourslonger than 87% of them
  • Last updatedAugust 2026more recently than 87% of them

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Course Description

In this newly updated 2026 edition, you’ll gain the essential Lean Six Sigma tools, concepts, and strategies needed to improve quality, eliminate waste, and drive measurable performance in your organization. Designed for manufacturing and continuous improvement professionals, this course takes you from foundational understanding to confident Green Belt-level application.

In 10 hours of video content across 90 lectures, you’ll learn how the Lean methodology reduces all forms of waste (“muda”) and improves process flow, while Six Sigma reduces variation, the true enemy of quality. Together, these methods provide a powerful, structured way to solve problems, lower costs, and increase profitability.

What You’ll Learn:

You’ll master practical techniques within the DMAIC framework—Define, Measure, Analyze, Improve, and Control—using clear explanations and hands-on Microsoft Excel demonstrations. Every concept is taught at a pace designed for professionals, with no prior statistical background required.

Course Highlights:

  • Learn to connect Lean Six Sigma projects to business objectives

  • Explore principles of project and change management

  • Gain insight into tools such as Pareto Analysis, Value Stream Mapping, Regression, Process Modeling, Capability Analysis, Control Plans and MANY OTHERS.

  • Understand how to measure and reduce the Cost of Poor Quality (COPQ)

  • Apply every major tool through downloadable Excel templates, ready for your next improvement project

New for 2026:

  • New lectures on Benchmarking, SMART Goals, Cost of Poor Quality, SWOT Analysis, and Process Flow Diagrams

  • Expanded material on Measurement Systems Analysis (MSA) and Overall Equipment Effectiveness (OEE)

  • Enhanced 5S module with new implementation examples

  • Many new Excel templates for immediate, real-world application

  • A 50-question practice exam to test your knowledge and reinforce key ideas

Your Instructor and Benefits:

Taught by Ray Harkins, a senior manufacturing professional and educator with over 30 years of experience and more than 120,000 students worldwide.

When you enroll, you’ll receive:

  • Lifetime access to all videos, templates, and future updates

  • Downloadable study guides and templates

  • A Certificate of Completion from Udemy

  • Responsive Q&A support within 48 hours

What Udemy students are saying about "Certified Lean Six Sigma Green Belt":

"Love the course! The instructor is very clear and explains all the concepts in detail." - Sarah B.

"Brilliant course without the time-consuming "filler" of most six sigma courses" - E. Duflo

"This course is very easy to understand." - Rohith A. "As expected, another great course form Ray!" - Sergio A.

"Loved the way 6 sigma was explained. I understand it now : )" – Eva A.

"Definitely would recommend it to anyone pursuing their lean six sigma certification journey." - Jithu B.

Plus hundreds of 5-star Reviews!!

Take your problem-solving and process improvement skills to the next level.

Enroll today and start building the expertise that drives real results with Certified Lean Six Sigma Green Belt (2026).

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Instructor Details

Ray Harkins

Ray Harkins is a senior manufacturing leader, educator, and founder of The Manufacturing Academy, with more than 30 years of experience in manufacturing engineering, quality engineering and management, and operations leadership. He currently serves as a General Manager in manufacturing, overseeing operations, quality, engineering, and continuous improvement while remaining actively engaged in solving the day-to-day challenges faced by manufacturers.

After beginning his career in manufacturing engineering, Ray expanded into quality and operations leadership, working alongside leading industry professionals throughout North America and Japan and touring hundreds of manufacturing facilities. These experiences shaped his belief that manufacturing professionals deserve practical training that they can immediately apply to improve quality, productivity, and their careers.

That philosophy has guided the development of more than 60 online courses covering Lean Six Sigma, Statistical Process Control, Supply Chain Analytics, Manufacturing Leadership, Reliability Engineering, and Operations Management. His courses are used by individual professionals and corporate training departments worldwide and have helped more than 140,000 students build practical skills and advance their careers.

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Reviews

4.7

1,414 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Vikanta on 9/12/2026

Too easy test but content is easy to understand. I hope you have a class that address for persons who would like to pass the GB exam certification.

By Pohl Julian Mofoka on 9/11/2026

Great course. I already am a LSSBB but just took it for fun and refresher. Still it was very useful due due to the nature of its practicality.

By Mustafa Abu Dhahriya on 9/2/2026

I would like to sincerely thank you for the effort, dedication, and clarity you brought to this course. Your teaching style made complex topics easy to understand, and the practical insights you shared will stay with me long after the course. very much appreciated

By Md Zahedur Rahaman on 8/13/2026

I am trying to understand

By Thamara GAILLARD on 8/12/2026

Très bon cours mais je trouve qu'il n'y a pas assez de fiches mémos pour les éléments présentés (c'est une formation assez longue avec beaucoup d'outils)

By Agnieszka Opyrchał on 7/15/2026

It's one of the best trainings I've attended so far. Very clear explanations, practical approach and the host is really making me interested and involved.

By Patricia Picasso on 7/11/2026

Very clear examples and a very good pace at teaching. I love the practical examples given to better illustrate concepts + the excel sheets to practice with.

By Susan Hendrick on 6/4/2026

I enjoyed the class and learned a great deal, despite not coming from a manufacturing background. I will consider other training courses from Ray and really appreciate his clear and concise instruction. The downloadable resources are also wonderful for practicing my skills and applying them when working on continual improvement projects at work. Thank you!

By Samuel Omar Ramirez on 3/18/2026

LAS HERRAMIENTAD DE CALCULO SON MUY IMPORTANTES PARA DETERMINAR LOS VALORES DE CADA COSA A MEJORAR

By Robert Dinkel on 3/16/2026

This course was perfect for achieving my Green Belt Certificate. It was recommended to me by a Lean Six Sigma Master Black. I encourage anyone interested in Lean Six Sigma to take this course. Good luck!

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Overall Score : 94 / 100