Enterprise Bancorp, Inc. operates as the holding company for Enterprise Bank and Trust Company that provides various banking products and services primarily in the greater Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire. The company offers commercial checking, business and municipal savings accounts, term certificates of deposit, money market and business sweep accounts, interest on lawyers trust accounts, escrow management accounts, personal checking accounts, savings accounts, and individual retirement accounts, as well as checking and simplified employee pension accounts. It also provides commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit; and conventional residential mortgage loans, home equity loans and lines, residential construction loans on primary and secondary residences, and secured and unsecured personal loans and lines of credit, as well as equipment lease financing services. In addition, the company offers cash management services; various investment advisory and management services, including customized investment management and trust services to individuals, family groups, commercial businesses, trusts, foundations, non-profit organizations, and endowments; and insurance products, such as property and casualty, employee benefits, and risk-management solutions. As of January 26, 2017, it had 23 full-service branch offices located in the Massachusetts communities of Lowell, Acton, Andover, Billerica, Chelmsford, Dracut, Fitchburg, Lawrence, Leominster, Methuen, Tewksbury, Tyngsborough, and Westford; and the New Hampshire communities of Derry, Hudson, Nashua, Pelham, and Salem. The company primarily serves business entities, non-profit organizations, professionals, and individuals. Enterprise Bancorp, Inc. was founded in 1989 and is headquartered in Lowell, Massachusetts.