Unlock the Full Potential of Lean Six Sigma

Training, certification and deployment services built around the LSSx.0 standard.
4,000+
professionals certified

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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.
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
Paris · Lyon · Lille · Toulouse
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
Brussels · Liège · Gosselies
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.

The explanations were clear and the content interesting. With all the information retained, it was good to have breaks allowing us to reorganize our thoughts.

G
Ghita A.
Lean Practitioner · Coopération Pharmaceutique Française · March 2026

facilitation, concrete examples, floor given to the group, good structure and flow of the content

A
Amélie T.
Lean Practitioner · SEQENS · June 2026

I found this training course very interesting, it will allow me to apply the different processes in project management that of which I am in charge. This training course is fun and very helpful

M
Mélina F.
Lean Practitioner · SA FN Herstal · March 2026

Very high-performance and pleasant computer equipment to follow such a lively training course

J
Jean-Yves D.
Lean Thinking · OMRON ELECTRONICS · September 2025

Thanks to the trainer because it is not easy to present this subject .

S
Salima B.
Green Belt · NORTH ATLANTIC FRANCE · April 2026

Facilitation, flow and speech rate, clear explanation, adaptability to the production environment.

G
Guillaume G.
Lean Practitioner · VERBAU SA · March 2026

The content of the training course is of very high quality, clear. I really appreciated Simon’s performance: very educational, sharing of his experience, exceptional. This Yellow Belt module is an introduction to a robust methodology, where I look forward to learning the rest of it

A
Arnaud D.
Yellow Belt · IUT Amiens GMP · October 2025

friendly trainer and training content complementary to the first one and exercise linked to my profession, very useful for what comes next. i would recommend this training with interest.

M
Melanie C.
Yellow Belt · Pranarom International SA · October 2025

I really appreciated the quality of the discussions with Pascal, which were both relevant and enriching.

L
Lucie N.
Yellow Belt · QIMA Newtone · September 2025

Comprehensive training course, quite “to the point” with quality materials that allow a good understanding of the concepts covered.

M
Maxime D.
Lean Practitioner · SA FN Herstal · May 2026

Good balance between examples and theory. Dynamic course style and coach with experience. well satisfied overall!

H
Hong Phuc V.
Lean Practitioner · Centre for cybersecurity belgium · August 2025

The examples to illustrate the different concepts are relevant, he built a good team over these 2 days

S
Stéphane D.
Black Belt · ENGIE SA · November 2025

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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