Professionals who earn Six Sigma certification become key stakeholders in improving the quality of operations within their organizations. They strive to eliminate variation in manufacturing and business operations by implementing standard processes and establishing metrics that minimize the potential for defects.
Six Sigma Belt Levels
Many of today’s leading organizations synthesize Six Sigma standardization practices with Lean manufacturing methods that cut waste to make their organizations as efficient as possible. Some of the companies that have successfully put Lean Six Sigma (LSS) principles into action include 3M, Xerox, and BAE Systems. For businesses to achieve optimal results with these initiatives, experts trained in the applicable tools and techniques must guide enterprise-wide changes.

But what do Six Sigma belt levels mean? These certification levels indicate the roles that individuals are qualified to play in completing projects and promoting quality management practices. An online lean six sigma certificate program equips professionals to be active participants in optimizing their company culture and avoiding downtime.

Get to know each of the Six Sigma certification levels so you can build skills that will help your company function more smoothly and advance your career.

Six Sigma White Belt

Professionals are considered Six Sigma White Belts if they have not undergone a formal certification program or extended training. A single session with an overview of relevant methods and vocabulary for LSS shows workers at all levels of an organization how they contribute to efficient, reliable outcomes. With this basic grounding, White Belts participate in projects and problem-solving tasks related to quality management and waste reduction.

According to Lightcast, job titles that may require a Six Sigma White Belt include:

  • Transition Project Managers
  • Change Management Specialists
  • Integration Project Managers
  • Performance Test Leads

Six Sigma Yellow Belt

A Yellow Belt designation indicates an exposure to Six Sigma concepts that goes beyond the fundamentals provided for a White Belt. Yellow Belts may have attended training sessions over a day or two, developing the knowledge they need be assigned to a project as fully contributing team members. They may guide limited-scope projects and assist managers at higher belt levels. According to Lightcast, the median advertised salary for positions requiring a Six Sigma Yellow Belt is $85,200.

According to Lightcast, job titles that may require a Six Sigma Yellow Belt include:

  • Data Governance Analysts
  • Commissioning Engineers
  • Laboratory Operations Managers
  • Solutions Architects

Six Sigma Green Belt

Earning a Lean Six Sigma Green Belt certification requires professionals to attend a full course that introduces them to Six Sigma methods for developing and improving products, services and processes. They learn to apply problem-solving frameworks such as DMAIC: Define, Measure, Analyze, Improve and Control. This improvement cycle lays out a series of steps to understand the problems in a business process, set useful metrics for measuring changes, examine relevant data, implement solutions and then sustain the results over time. According to Lightcast, the median advertised salary for positions requiring a Six Sigma Green Belt Certification is $95,600.

Green Belt training is valuable for individuals in roles like project management, health care administration or financial management, giving them an understanding of performance metrics and tools like control charts and Failure Modes and Effects Analysis (FMEA). After certification, professionals are ready to take charge of projects, making the connections between LSS concepts and the goals of their organization. They can put leadership tools into action, find chances to eliminate waste and glean useful insights from data.

According to Lightcast, job titles that may require a Six Sigma Green Belt include:

  • Quality Engineers
  • Continuous Improvement Managers
  • Production Supervisors
  • Quality Managers

Six Sigma Brown Belt

While not officially recognized by most accreditation organizations, the Six Sigma Brown Belt is sometimes used to refer to a person who passed the Black Belt exam after earning a Green Belt, but has not fulfilled the requirement to complete a second Six Sigma project.

Six Sigma Black Belt

After completing their Green Belt courses, leaders may take their skills to next level by pursuing Six Sigma Black Belt certification. This advanced training requires previous knowledge of LSS strategies as professionals master the skills they need to plan, lead and explain more complex and expansive projects or organizational changes. Students in a Black Belt-level course acquire a rigorous understanding of how to drive organization-wide changes, analyze statistics, deploy Lean principles and supervise projects for a team of Green Belts. According to Lightcast, the median advertised salary for positions requiring a Six Sigma Black Belt is $120,200.

During a Black Belt-level course, professionals demonstrate what they’ve learned and gain hands-on experience by conducting a project for their employer or a nonprofit organization. By setting down a project charter, collecting data and employing Six Sigma tools in a real-world context, students develop the abilities they need to make their businesses more productive and increase customer satisfaction.

Holders of a Lean Six Sigma Black Belt go on to execute LSS projects, monitor results and manage team dynamics. They run quality improvement and Lean efforts with the potential to make a significant impact on company-wide productivity.

According to Lightcast, job titles that may require a Six Sigma Black Belt include:

  • Industrial Production Managers
  • General and Operations Managers
  • Management Analysts
  • Project Management Specialists

Six Sigma Master Black Belt

A seasoned Black Belt with strong leadership and problem-solving skills can go on to become a Master Black Belt in LSS. This designation indicates that an expert takes a broad view of strategy throughout a business, coordinating project teams across an organization. They often coach Black Belts and Green Belts, acting as an internal consultant for Six Sigma strategic direction.

According to Lightcast, job titles that may require a Six Sigma Master Black Belt include:

  • Architectural and Engineering Managers
  • Industrial Production Managers
  • Civil Engineers

Six Sigma Champion

A Champion is an upper-level manager who leads LSS strategy and deployment. Based on the objectives set by executive leadership, Champions ensure that all initiatives to lower waste and remove defects come together in alignment with a company’s needs for growth. Aided by Master Black Belts, these managers mentor the leaders involved in LSS implementation and track their progress.

Six Sigma Executive

A Six Sigma Executive functions at the organizational level by developing and communicating the overall focus of a Six Sigma program within an organization. They implement measurement strategies and develop management controls to ensure the success of the program.

About Purdue’s Online Lean Six Sigma (LSS) Certificate Program

Purdue University offers comprehensive online Lean Six Sigma (LSS) certificate programs designed for working professionals with varying levels of Lean Six Sigma experience. The online Lean Six Sigma certificate courses prepare professionals to satisfy the immense demand for Lean expertise, skills and certification.

Purdue offers the following courses 100% online:

Get Started Now


To learn more about Purdue University’s online Lean Six Sigma Training and Certification program and , fill out this form. You can also email us at or call us at (888) 390-0499 to speak to one of our program advisors.

Purdue University has engaged AllCampus to help support your educational journey. AllCampus will contact you shortly in response to your request for information. About AllCampus. Privacy Policy. You may opt out of receiving communications at any time.

* All Fields are Required. Your Privacy is Protected. Are you enrolling from outside the US? Click here.