White, Yellow, Green, Black — four belts, one clear journey. See what each belt teaches, how they differ, and what you get — all recognised by the Council for Six Sigma Certification.
★★★★★ 4.9 · Joined by thousands of practitioners Start free with White Belt →
CSSC-recognised certificationEach belt builds on the last. Start wherever fits your experience — you don’t have to begin at White.
The short version: each belt takes you from understanding improvement, to supporting it, to leading it, to driving it across an organisation.
Who it’s for: Anyone brand new to Lean Six Sigma who wants to understand what it is and how it works.
Your role: A knowledgeable team member who understands improvement language and can support projects.
Who it’s for: People who want a real, recognised qualification and to actively support or run small improvement projects.
Your role: A capable project team member who can gather data, map processes and run root-cause analysis.
Who it’s for: Those ready to lead their own improvement projects and work confidently with data.
Your role: A project leader who can scope, analyse and deliver measurable improvements end to end.
Who it’s for: Experienced improvers who want to master advanced statistics and lead change across an organisation.
Your role: An expert who runs multiple projects, mentors Green Belts and reports to executive sponsors.
A side-by-side view of the four belts so you can pick the right starting point.
| White | Yellow | Green | Black | |
|---|---|---|---|---|
| Level | Beginner | Foundational | Intermediate | Advanced |
| Best for | Understanding the basics | Supporting & running small projects | Leading projects | Mentoring & leading at scale |
| Statistics depth | Awareness | Basic | Intermediate | Advanced |
| DMAIC | Overview | Full depth | Full + capability | Full + simulation |
| Signature tools | SIPOC, 5 Whys | Charter, VoC, MSA | Hypothesis tests, DOE intro | Advanced DOE, SPC, forecasting |
| Exam & certificate | Certificate of completion | Exam + certificate | Exam + certificate | Exam + certificate |
| CSSC-recognised | — | ✓ | ✓ | ✓ |
| Price | Free | £25 | £25 | £25 |
| Start → | View → | View → | View → |
One price includes the course, the exam and the certificate — no hidden charges, and lifetime access to every course.
SimplicityHub is a recognised training provider for the Council for Six Sigma Certification (CSSC) — one of the most widely referenced Six Sigma standards bodies. Our Yellow, Green and Black Belt certifications are recognised by the CSSC, so the qualification you earn carries genuine, independent weight.
You can verify the council independently at sixsigmacouncil.org.
The path runs White Belt (free introduction), then Yellow Belt (foundational practitioner), then Green Belt (project leader), then Black Belt (expert and mentor). Each belt builds on the one before it.
No. You can start at whichever belt matches your experience. The free White Belt is the ideal starting point if you’re new, but you can enrol directly on Yellow, Green or Black Belt.
Yes — SimplicityHub is a recognised training provider for the Council for Six Sigma Certification (CSSC), and the Yellow, Green and Black Belt certifications are recognised by the CSSC.
White Belt is free. Yellow, Green and Black Belt are £25 each, and that one price includes the course, the exam and the certificate — with no extra charges. You also get lifetime access to every course.
It’s fully self-paced. White Belt takes around 1–3 hours; the paid belts take longer as the material deepens, but there are no deadlines — you learn at your own pace with lifetime access.
Lean Six Sigma is a continuous improvement methodology that combines Lean (removing waste and improving flow) with Six Sigma (reducing variation and defects). In practice it helps you solve problems, cut inefficiency and improve quality — using a structured approach called DMAIC (Define, Measure, Analyse, Improve, Control).
Yellow Belt gives you the foundational tools and is ideal for supporting improvement projects. Green Belt covers the full DMAIC methodology and is designed for people who lead their own projects. Black Belt is the expert level — advanced analysis, statistics and mentoring others. Each one builds on the last.
Yes. When you complete a course and pass its exam you receive an official certificate — and for Yellow, Green and Black Belt that certificate is recognised by the Council for Six Sigma Certification (CSSC). It’s included in the price with no extra charge.
If you’re new, start with the free White Belt to learn the basics at no cost. Choose Yellow Belt if you want foundational tools to support projects, Green Belt if you want to lead your own improvement projects, and Black Belt if you’re experienced and want advanced, leadership-level expertise.
Just open the course page for the belt you want and follow the enrol steps. White Belt is free to start; Yellow, Green and Black Belt are £25 all-in (course, exam and certificate). You get lifetime access to every course you enrol on.
Begin with the free White Belt, or jump straight to the belt that fits where you are today.
