Lean Start-Up is a new process for product development that replaces the stage gate process for developing products when there is high uncertainty in the market and/or technology – characteristics which typically occur in transformational and disruptive innovations. The lean start-up methodology had its beginnings in small companies (Eric Reis, The Lean Start-Up, Crown Publishing, 2011; Steve Blank, What the Lean Start-Up Changes Everything, HBR, May 2013). Large companies such as GE, Goodyear and Intuit have begun to adopt the process. As large companies are fundamentally different than start-ups, the methodology, practices, pitfalls, and lessons from small start-ups will have limited applicability to large companies. Accordingly, the purpose of this ROR has been to learn how lean start-up is actually used in large companies, which industries it might easily be applied to, and which industries need to modify and adopt the process. The team will report on the implementation methodology, best practices and lessons learned.