M&T Bank Corporation is making a splash in the mid-Atlantic region. It is the holding company of M&T Bank, which offers deposit, loan, trust, investment, brokerage, and insurance services to more than two million individuals and small- and mid-sized businesses. With about $123 billion in total assets and $92 billion in deposits, the bank operates more than 800 branches and 1,600 ATMs in New York, Pennsylvania and other eastern states and Washington, DC, in addition to Canada and the Cayman Islands. Its residential mortgage origination unit spans more than a dozen states in the South and West. The firm also manages a proprietary line of mutual funds, the Wilmington Funds.