Serial entrepreneur Kevin Ryan is sometimes referred to as the “Godfather” of NYC tech, and for good reason. After making a name for himself by growing digital advertising company DoubleClick from a startup to a public company that eventually sold to Google for $3.1 billion, Ryan co-founded a string of New York-based startups, including Business Insider, the online-shopping company Gilt Groupe, and the wedding-planning site Zola. READ MORE