Meridian Bancorp, Inc. is the holding company for East Boston Savings Bank. East Boston Savings Bank, a Massachusetts-chartered stock savings bank founded in 1848, operates 43 branches in the greater Boston metropolitan area, including 42 full-service locations and one mobile branch. It offers a variety of deposit and loan products to individuals and businesses located in its primary market, which consists of Essex, Middlesex, Norfolk and Suffolk Counties, Massachusetts.