This circle is designed to be a group for Budapest-based entrepreneurs and intrapreneurs who want to learn and share ideas about Lean Startup principles, Customer Development and Business Model Generation. Our mission is to spread these powerful approaches and help entrepreneurs learn faster about their customers. The new entrepreneurship era is all about customers and their problems. The #1 reason that startups fail is lack of customers, not product development failure . The Lean Startup is an approach that attempts to acknowledge this and create startup success. The Lean Startup is a collection of techniques built around maximizing validated customer learning through fast Build/Measure/Learn iteration loops. * The Lean Startup (http://theleanstartup.com/) is a trademark and service mark owned by Eric Ries (http://startuplessonslearned.com/).