Lean Six Sigma

Lean Six Sigma is a proven business improvement method that combines Lean’s focus on speed and waste reduction with Six Sigma’s emphasis on quality and error reduction. Originally developed by Toyota and Motorola, these approaches are widely used across industries. When applied effectively, Lean Six Sigma offers a powerful, structured framework for enhancing organisational performance. 

Lean Six Sigma qualifications are structured across three levels: Yellow Belt, Green Belt and Black Belt. These levels are based on EU-funded research by the Lean Six Sigma Academy (LSSA), which aimed to establish a common standard and define the tools and techniques each Belt level should be competent in.

Why choose Althris for Lean Six Sigma

• APMG-accredited training provider with friendly, real-world trainers

• Yellow Belt and Green Belt pathways delivered live online, in-person, or blended

• Practical exercises, templates and examples you can use the next day

• Clear focus on value for money, timeboxing, MoSCoW, and stakeholder engagement

• Exam preparation woven into the course, not bolted on. All Agile PM courses include the official book and the exam 

Who is it

Our accredited Yellow Belt course and certification is ideal for professionals across operations, project, finance, HR, IT or change roles, and provides a solid grounding in Lean Six Sigma principles:

• People seeking foundational knowledge of Lean Six Sigma
• Team members contributing to improvement projects
• Continuous-improvement or change‑management professionals
• Team, operations, HR, IT, project, change, or finance managers involved in process enhancements

Learning Outcomes

By completing the Yellow Belt certification, candidates will:

• Understand the Lean Six Sigma philosophy and its benefits
• Gain awareness of Lean and Six Sigma tools for reducing waste, variation and defects
• Learn how to support Kaizen teams as effective contributors
• Build skills for facilitating continuous improvement in daily work
• Learn to identify inefficiencies and promote process stability

Training Format

• Typically delivered via 2-day classroom or virtual courses

• Our Lean Six Sigma courses are currently available online or in-person for groups of six or more learners – whether they are individuals grouped together or teams from the same organisation.

Exam Details

• • Format: 50 multiple‑choice questions
  • Duration: 60 minutes
  • Open‑book: Candidates may use the manual (LSSA publication) and a basic calculator. Exercise books or other resources are not permitted
  • Pass Mark: 32/50 (64%)

Certification Validity

The Yellow Belt certification does not expire. Once achieved, it remains valid indefinitely and may be displayed on business cards, CVs or as a verified Lean Six Sigma Yellow Belt digital badge.

Benefits & Career Impact

• Recognised globally, indicating structured process‑improvement capability
• Enhances analytical thinking, problem‑solving and stakeholder communication
• Enables contribution to Lean Six Sigma projects without leading them independently
• Ideal stepping stone toward Green or Black Belt levels with further training and experience

Why Learn with Althris?

• Established experts: Operating in Ireland since 2013, Althris are established experts in delivering high-quality training, with extensive experience supporting demanding public sector organisations, complex corporate environments and diverse academic institutions.
• Science-Based Delivery: Althris uses training methods grounded in modern learning science, ensuring that our sessions are interactive and practical, combining expert instruction with real-world examples that prepare learners to apply Lean Six Sigma tools immediately.
• Global standards: Althris is an APMG-accredited training provider, ensuring high-quality delivery aligned with global standards in Lean Six Sigma education.