Uber Co-Founder and CEO Travis Kalanick explains, “In the beginning, it was a lifestyle company. You push a button and a black car comes up. Who's the baller? It was a baller move to get a black car to arrive in 8 minutes." But what began in 2009 as a luxury car service in San Francisco is now valued at $3.76 billion and operates in more than 35 cities worldwide.