Want to run a big bank someday? Go work for Citigroup (C).
The third-largest U.S. bank has fallen on hard times in recent years, but its name still pops up with Ivy League frequency on the resumes of financial chief executives. Now that Citi-trained bankers have landed two prominent CEO jobs this fall, the bank's alumni run four of the country's biggest financial companies: JPMorgan Chase (JPM), Visa (V), MasterCard (MA) and Citigroup itself. The graduate network extends internationally; this summer, British bank Barclays (BCS) chose former Citi banker Antony Jenkins as its new CEO.