Lean Sigma Corporation | 1,314 followers on LinkedIn. Lean Six Sigma Training and Certification Provider | Lean Sigma Corporation, is a trusted leader in Lean Six Sigma certification and training, boasting a rich history of providing high-quality educational resources. With a mission to honor and maintain traditional Lean Six Sigma curriculum and certification standards, Lean Sigma Corporation has empowered thousands of professionals and organizations worldwide with over 5,100 certifications, solidifying its position and reputation in the industry as a go-to source for excellence through Lean Six Sigma methodologies.