The Six Sigma Yellow Belt Certification is perfect for candidates who are new to the world of Six Sigma and have a small role, interest or need to develop foundational knowledge. GreyCampus provides Online Six Sigma Yellow Belt Training and Certification. Yellow Belt is the entry-level certification of Six Sigma. Six Sigma is a step-by-step process of interventions and statistical tools that allows companies to interpret which business processes need attention, identify root causes of problems, and sustain gain in improvements. Register today for the course!