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Lean Six Sigma Green Belt
with International Certification

Become the leader of improvement projects in your organisation. Full DMAIC programme, 5 days online live, delivered by Master Black Belt experts with experience across 32 countries.

ILSSI / IASSC / LSSIAP Certification 5 days online live Open & In-company 800 EUR all-inclusive Master Black Belt trainers
Enrol now View 2026 sessions
20+years Enviso experience
35,000+certified professionals
32countries delivered in
ILSSI & IASSC & LSSIAPglobally recognised certification

What does it mean to be a Lean Six Sigma Green Belt?

A Green Belt is a professional who leads medium-to-large process improvement projects using the DMAIC methodology (Define – Measure – Analyse – Improve – Control). Unlike a Yellow Belt, who participates as a team member, the Green Belt coordinates projects and applies advanced statistical tools to identify and eliminate root causes of problems.

In larger organisations, Green Belts manage projects with direct impact on cost, quality and customer satisfaction, working alongside or under the guidance of a Black Belt or Master Black Belt.

International Green Belt certification confirms that you have the competencies to lead Lean Six Sigma projects and deliver measurable results for your organisation.

Who should attend this programme?

The Lean Six Sigma Green Belt programme is ideal for:

  • Project managers who want to structure improvements using a globally recognised methodology
  • Specialists in quality, manufacturing, logistics, financial services or IT involved in optimisation projects
  • Yellow Belt professionals looking to advance to the next level
  • Internal or external consultants guiding teams in Lean Six Sigma implementation
  • Any professional seeking an internationally recognised certification for career advancement

No prior knowledge of statistics is required. The programme covers all necessary concepts from the ground up.

The DMAIC methodology — the backbone of Green Belt

The Green Belt programme covers in depth all 5 phases of the DMAIC cycle, with practical tools and exercises applied to real industry case studies.

D

Define
Problem identification, customer requirements (CTQ), project scope definition and Project Charter development.

M

Measure
Data collection, process mapping (SIPOC, VSM), process capability calculation and KPI identification.

A

Analyse
Root cause identification using Fishbone, 5 Whys, Pareto, regression, hypothesis testing and statistical analysis with Minitab.

I

Improve
Solution generation and selection, Design of Experiments (DOE), piloting and implementing changes with measurable impact.

C

Control
Results monitoring, control plans, control charts and solution standardisation for long-term sustainability.

What you will be able to do after the programme

On completing the Green Belt programme, you will be able to apply immediately in your organisation:

Lead Lean Six Sigma projects of medium to large complexity independently
Map and analyse processes using SIPOC, Value Stream Mapping and flowcharts
Collect and analyse data with statistical tools (Minitab, Excel)
Identify root causes through Fishbone, 5 Whys, Pareto analysis and regression
Calculate process capability and sigma level
Manage project teams and communicate results to management
Implement improvement solutions and monitor their sustainability through control charts
Sit the ILSSI, IASSC or LSSIAP international certification examination

How the programme is structured

The Green Belt programme is available in two formats, both including international certification in the price.

Open — public sessions

Sessions with participants from diverse industries

Participants from manufacturing, retail, financial services, pharma, logistics and IT work together. Cross-sector experience exchange is one of the most valuable aspects of the open programme.

  • 5 days training + 1 day review and examination
  • Online live, with trainer in real time
  • Sessions delivered in English
  • Price: 800 EUR (includes certification)
In-company — exclusively for your organisation

Programme customised to your company's real processes

Exercises and case studies are adapted to your industry and organisational context. The entire team participates together, building a shared language and a real pilot project.

  • Flexible duration and format
  • At client premises or online
  • Available in English, Romanian, French
  • Custom quote on request
Post-training coaching

Support in implementing your first project

Enviso offers individual or team coaching sessions after course completion, to guide application of the DMAIC methodology on a real project in your organisation.

  • Regular sessions of 1–1.5 hours
  • Online or on-site coaching
  • Master Black Belt certified trainer
  • Available for teams as well

Green Belt sessions available in 2026

All sessions are online live and include the international certification examination in the listed price.

SessionTraining (5 days)Review & ExamFormatPrice
Session 17 – 10 April 202611 April 2026Online live800 EUR
Session 211 – 14 May 202615 May 2026Online live800 EUR
Session 314 – 17 September 202618 September 2026Online live800 EUR
Session 426 – 29 October 202630 October 2026Online live800 EUR
Session 57 – 10 December 202611 December 2026Online live800 EUR

* 800 EUR includes full training, training materials and international certification examination (ILSSI, IASSC or LSSIAP, at your choice). VAT not included for companies. Dates subject to change — please check the updated calendar or contact us directly.

Which certification do you obtain

The Green Belt certification issued through Enviso is internationally recognised and confirms competence in applying the DMAIC methodology.

Recognised in over 30 countries

On successfully completing the examination, you receive the Lean Six Sigma Green Belt certification issued by ILSSI (International Lean Six Sigma Institute Cambridge), IASSC (International Association for Six Sigma Certification) or LSSIAP (Lean Six Sigma International Association of Professionals), at your choice.

All three bodies are internationally recognised and appear on your CV as concrete evidence of your process improvement competence.

Enviso is an Accredited Training Organisation (ATO) of ILSSI and LSSIAP — guaranteeing the validity and international recognition of the certificates issued.

Certification requirements

To obtain the Green Belt certification you must:

  • Attend all training days
  • Study the training materials provided
  • Sit the written examination (100 questions, 3 hours) on the dedicated day
  • Achieve a minimum score of 70%

The examination takes place on the last day of the programme. The examination fee is included in the course price.

Frequently asked questions

Do I need prior experience in Lean Six Sigma?

No prior experience is required for the Green Belt programme. If you already have Yellow Belt certification, you will find the first part of the programme consolidates what you know and the programme moves quickly to more advanced content. If you are starting fresh, all foundations are covered from the beginning.

What statistical software is used?

The programme uses Minitab for statistical analysis. Enviso provides a trial licence for the duration of the course. Basic Excel skills are sufficient to start — all statistical concepts are taught from scratch.

Is the certification valid internationally?

Yes. ILSSI, IASSC and LSSIAP certifications are recognised globally. ILSSI and LSSIAP certifications have no expiry date. IASSC certification is valid for 3 years.

Can I attend without an active improvement project?

Yes. The course exercises are based on real industry case studies, so you will learn in an applied way regardless of your current professional context.

What is the next step after Green Belt?

After Green Belt certification, the natural progression is the Lean Six Sigma Black Belt programme, which deepens advanced statistical techniques and prepares professionals to lead complex projects and mentor Green Belts in their organisation.

Ready to become a Green Belt?

Enrol on one of the 2026 sessions or request a customised in-company quote for your team.

Enrol now View full calendar
Or contact us directly: +40 736 12 13 14  |  info@enviso.org  |  Ask ADA — AI advisor
Andaluza Boncu – LSS Trainer & Consultant Enviso

Course Registration

Andaluza Boncu

Lean Six Sigma Trainer & Consultant · Enviso

info@enviso.org +40 724 502 372
🤖

Not sure which course is right for you? → Ask ADA — Enviso AI advisor for process improvement.