Introduction and overview to the lean process for startups. An evidence based approach to validate early hypothesis and develop a solid Business Model before launch. Involving Customer Development, Hypothesis testing, Minimum Viable Product, (MVP) to get to Product/ Market fit and ultimately A replicable scalable business model. This simple but disciplined approach takes the guess work out of taking an idea and turning it into a viable company. Based on Eric Reis, Steve Blank and Alex Osterwald's work with Lean Startup, Lean launchpad, customer development and Business Model Canvas. Now in practice by multiple Incubators, Accelerators, Universities and now the National Science Foundation through ICorp to validate business ideas with before investing.