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Unlock the Full Potential of Lean Six Sigma

Training, certification and deployment services built around the LSSx.0 standard. Belt certifications from Yellow to Black, Lean Manager and Lean Practitioner programmes, on site or live online.
4,000+
professionals certified
Worldwide
Online & Corporate on-site
France, Belgium & Netherlands
In person & online

What is Lean Six Sigma?

A method for improving how work gets done, built from two approaches that answer different questions. Lean asks where time and effort go without producing anything the customer values. Six Sigma asks why results vary, and how to bring that variation under control.
Lean
Removes waste and shortens lead time.
Six Sigma
Reduces variation and defects.
Read the full explanation →
Lean removes waste and shortens the process; Six Sigma narrows variation. Together they make a process both fast and consistent. SIX SIGMA Reduce variation 3.4 defects per million LSL USL LEAN Remove waste, shorten lead time BEFORE 8 steps AFTER 5 steps shorter lead time

Your Certification Path

Pick a level — or click a segment to open it
Level
Lean Practitioner
Yellow Belt, includes previous levels
Green Belt, includes previous levels
Black Belt, includes previous levels
Master Black Belt, includes previous levels
Lean Manager
Business Process Mgmt
Design for Six Sigma
Total
Specialized
Standalone — no belt required
Lean management icon

Lean Practitioner

Foundation
2
days
For professionals who want to improve operations.
Develop practical Lean skills to assess operational performance, identify inefficiencies, improve flow, and reduce lead times.
Yellow belt icon

Yellow Belt Lean Six Sigma

Essential
4
days
For professionals leading DMAIC projects on simple problems.
Develop the skills to improve operational performance and solve simple problems (discernible) using Lean, LSSx.0, and DMAIC.
Builds on Lean Practitioner capabilities and adds structured DMAIC problem solving.
Green belt icon

Green Belt Lean Six Sigma

Intermediate
7
days
For professionals leading DMAIC projects on complex problems.
Develop the skills to improve operational performance and solve complex problems using Lean, LSSx.0, DMAIC, and statistical analysis.
Builds on Yellow Belt and extends problem-solving capability to complex problems requiring deeper analysis.
Black belt icon

Black Belt Lean Six Sigma

Advanced
10
days
For professionals tackling highly complex problems and advanced performance challenges.
Develop the skills to achieve advanced operational performance and solve highly complex problems using Lean, LSSx.0, DMAIC, and advanced statistical methods, including Design of Experiments.
Builds on Green Belt capabilities with advanced analytical methods to address the most demanding operational and quality challenges.
Master black belt icon

Master Black Belt Lean Six Sigma

Expert
13
days
For experts leading Lean Six Sigma deployment across the organization.
Develop the expertise to achieve the highest levels of operational performance using Lean, LSSx.0, DMAIC, and expert-level statistical analysis, while leading large-scale Lean Six Sigma deployments.
Builds on Black Belt capabilities with deeper statistical expertise and the ability to structure and lead Lean Six Sigma deployment across the organization.
Lean manager icon

Lean Manager

Specialized
2
days
For managers who need to structure and sustain operational performance.
Develop the managerial skills to structure, lead, and sustain Lean performance systems, aligning teams, daily management, and operational objectives.
Business process icon

Business Process Management (BPM)

Specialized
3
days
For professionals who need to align processes with strategy and performance.
Develop the skills to structure, design, and manage business processes, from strategy and process architecture to BPMN modeling and performance management.
Design for six sigma

Design For Six Sigma

Specialized
2
days
For teams designing new products, services, or processes for performance from the start.
Develop the skills to turn stakeholder requirements into innovative, high-performance products, services, and systems.
Your Certification Path
Lean management icon
Lean Practitioner
Foundation · 2 days
Process improvement
Waste reduction
Develop practical Lean skills to assess operational performance, identify inefficiencies, improve flow, and reduce lead times.
Yellow belt icon
Yellow Belt Lean Six Sigma
Essential · 4 days
DMAIC project management
Simple quality problem solving
Develop the skills to improve operational performance and solve simple problems (discernible) using Lean, LSSx.0, and DMAIC.

Builds on Lean Practitioner capabilities and adds structured DMAIC problem solving.
Green belt icon
Green Belt Lean Six Sigma
Intermediate · 7 days
Complex quality problem solving
Standard performance
Develop the skills to improve operational performance and solve complex problems using Lean, LSSx.0, DMAIC, and statistical analysis.

Builds on Yellow Belt and extends problem-solving capability to complex problems requiring deeper analysis.
Black belt icon
Black Belt Lean Six Sigma
Advanced · 10 days
Complex quality problem solving
Advanced performance
Develop the skills to achieve advanced operational performance and solve highly complex problems using Lean, LSSx.0, DMAIC, and advanced statistical methods, including Design of Experiments.

Builds on Green Belt capabilities with advanced analytical methods to address the most demanding operational and quality challenges.
Master black belt icon
Master Black Belt Lean Six Sigma
Expert · 13 days
Enterprise-wide deployment
World-class performance
Develop the expertise to achieve the highest levels of operational performance using Lean, LSSx.0, DMAIC, and expert-level statistical analysis, while leading large-scale Lean Six Sigma deployments.

Builds on Black Belt capabilities with deeper statistical expertise and the ability to structure and lead Lean Six Sigma deployment across the organization.
Lean manager icon
Lean Manager
Specialized · 2 days
Leading Lean Performance Systems
Develop the managerial skills to structure, lead, and sustain Lean performance systems, aligning teams, daily management, and operational objectives.
Business process icon
Business Process Management
Specialized · 3 days
Designing and Managing Business Processes
Develop the skills to structure, design, and manage business processes, from strategy and process architecture to BPMN modeling and performance management.
Design for six sigma
Design For Six Sigma
Specialized · 2 days
Designing Innovative, High-Performance Solutions
Develop the skills to turn stakeholder requirements into innovative, high-performance products, services, and systems.

Access the Programs

Choose how you train.
Access our full catalog online from anywhere in the world, or connect with our local teams in France or Belgium, or train with us from the Netherlands.
Online & Corporate on-site

Worldwide

Join our live instructor-led programs from anywhere in the world.
Private in-person training can also be organised at your organisation’s premises on request.
Explore our worldwide offering
In Person & Online

France

Open-enrolment in
For organizations
Corporate Training · Deployment Services
Speak to the team
+33 1 78 90 03 71
Explore our offering in France
In Person & Online

Belgium

Open-enrolment in
For organizations
Corporate Training · Deployment Services
Speak to the team
+32 2 206 10 82
Explore our offering in Belgium

They Trust Our Expertise

Professionals and organizations across industries rely on our expertise to build capabilities, solve complex operational challenges, and achieve higher levels of performance.

Concrete examples and the case study that allow you to really get a clear picture and directly apply well. Translated from French.

A
Amélie C.
Yellow Belt · CQHN · April 2026

François is a very good trainer, pedagogical and a good communicator. His explanations are clear which makes learning easier Translated from French.

E
Elisette M.
Black Belt · May 2026

Trainer very clear and knows the subject taught well, makes you want to participate and ensures that the methods are well assimilated. Translated from French.

C
Caroline B.
Ethias SA · September 2025

rich subject delivered in a didactic and dynamic way. Practical exercise enlightening and facilitates the understanding of the different concepts Translated from French.

B
Benoît R.
Lean Practitioner · ECOMINERO · June 2026

The fact that we were in a small group was pleasant. The instructor took the time to answer all our questions and give plenty of examples to illustrate the formulas. Translated from French.

R
Rama S.
Lean Practitioner · BUNSHA · April 2026

The second part of the training – I feel more concerned by this information, especially regarding the “improve” point and the 5S keys. Dynamic trainer! Translated from French.

C
Camille C.
Lean Practitioner · Les petits riens ASBL · October 2025

Exceptional teaching approach: visual, practical cases, level of detail and real-world feedback keeping attention, enabling very good understanding and better retention of the training content. Translated from French.

N
Noélise L.
AUCHAN RETAIL SERVICES · October 2025

The structure and completeness of the training, the dynamics, the trainer’s teaching style. Translated from French.

V
Véronique O.
Lean Practitioner · Ethias SA · September 2025

Dynamic trainer, very nice and warm. And with a command of the subject matter. Translated from French.

D
Dimitry B.
Yellow Belt · Ethias SA · October 2025

The info was clear and detailed. the trainer was always available to answer questions and finds very good field examples Translated from French.

W
William K.
Lean Practitioner · MUSTAD BELGIUM SA · September 2026

Super trainer, very pedagogical, perfectly masters his subject, explains well, listens, puts participants at ease so everyone participates and enriches the discussions. Translated from French.

J
Joanna C.
Lean Practitioner · SERVIER MONDE · July 2026

Very professional, completely answers questions, ensures participants’ understanding. Translated from French.

J
Jérémy D.
Green Belt · CQHN · September 2026

Start Your Certification Journey

From Lean Practitioner to Master Black Belt, choose the certification path that matches your goals and take your performance to the next level.
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