David is a repeat entrepreneur, having founded or served on the founding team of six startups including Votizen (acquired by Causes.com), USA.gov (USA Today Site of the Year 2000), ArchRock (acquired by Cisco) and QFN (Intuit.com). He is a long-time member of the Lean Startup movement and has helped develop and promote many of its core concepts. He currently is focused on extending the Lean Startup approach to Fortune 500 companies with a particular emphasis on Innovation Accounting.