There has been a recurrent debate about the relative importance of age and experience in high- tech entrepreneurship where the uncertainty of the markets and products may render experience less critical than in established industries. Are the famous entrepreneurs in their early and mid- twenties exceptions? Some recent studies claim that the average age of entrepreneurs is closer to 40. We revisited the topic and analyzed not only the age of founders but also their roles when the company reached success and the links with geography, fields of business and venture capital.