People's United Bank, N.A. | 25,191 followers on LinkedIn. What know-how can do | On April 2, 2022, People’s United Bank, M.A. merged into M&T Bank. It is now part of M&T Bank and its former branches, and most services will operate as the People’s United division of M&T Bank until we complete the integration of our systems later in 2022. Founded in 1842, People’s United Bank is a premier, community-based, regional Northeast bank with more than 5,500 employees offering commercial and retail banking, as well as wealth management services.