8. Bank of New York Mellon Corp.
Formed in July 2007 with the merger of The Bank of New York and Mellon Financial Corporation, the combined entity can trace its origins to the establishment of the Bank of New York in 1784 by Alexander Hamilton. It holds the title of being the oldest banking corporation in the United States.
2012: $300.197 billion
2008: $237.512 billion
TARP Bailout: $3 billion
Headquarters: New York City