Sponsormob recently opened a sales office in Austin, Texas. The U.S. base of operations will focus on expanding the client base and management of current North American clients. Founded in 2006, Sponsormob is a leading provider of mobile advertising in Europe working with clients around the world. The company has grown from a staff of three in 2009 to twenty-five full-time employees today and has doubled its profitability year on year since its founding.