11. Ajaypal S. Banga
11. Ajaypal S. Banga
President and CEO, MasterCard Worldwide

Indian-born Banga took the top job at MasterCard last year after a stellar career at Citigroup. Today about a third of the world's credit cards bear the MasterCard brand, making it the second-­biggest card network after Visa. MasterCard has perhaps the strongest brand in its sector, and its stock price is up 49.5% in the past year. But Banga recently estimated that the company could face at least $500 million in liabilities relating to price-fixing suits currently pending against MasterCard and Visa.


By Richard McGill Murphy, contributor - Last updated November 17 2011: 5:58 PM ET