People's United Financial, Inc., was an American bank holding company that owned People's United Bank. The bank operated 403 branches in Connecticut, southeastern New York State, Massachusetts, Vermont, Maine, and New Hampshire. It was the second-largest full-service bank in New England, one of the largest in the northeast, and the 46th-largest in the United States.

M&T Bank Corporation is an American bank holding company headquartered in Buffalo, New York. It operates 1,000+ branches in 12 states across the Eastern United States, from Maine to Northern Virginia. Until May 1998, the bank's holding company was named First Empire State Corporation.