11. Travis Kalanick

Co-founder and CEO, Uber

Travis Kalanick has become one of the brightest new stars of Silicon Valley this year thanks to Uber, the on-demand car service that he co-founded and leads.

The company raised an enormous $258 million round in August, bringing its valuation to $3.5 billion. Sometimes, Uber generates $20 million per week.

With a swelling user base and a host of crazy stunts like delivering cheerleaders, kittens, and Christmas trees to its users, Uber has become one of the most well-known and talked-about car services in the space with Kalanick at its helm.