Headquartered in Bridgeport, Conn., People's United Bank has been in business since 1842. The bank has more than 300 branches, serving communities in Connecticut, Maine, Massachusetts, New Hampshire, Vermont and Westchester County. This White Plains branch is located on Mamaroneck Avenue, right around the corner from Renaissance Plaza and Starbucks. It offers a variety of services, including an ATM, teller service, checking & savings accounts, investing, insurance, credit cards and more.