Enterprise Bancorp, Inc. (Enterprise) operates as the holding company of Enterprise Bank and Trust Company referred to as Enterprise Bank (the Bank). All of the Company’s operations are conducted through the Bank. The Bank is a state-chartered commercial bank. The Company principally is engaged in the business of attracting deposits from the general public and investing in commercial loans and investment securities. Through the Bank and its subsidiaries, the Company offers a range of commercial and consumer loan products, deposit and cash management products, investment advisory and management, trust and insurance services. The Company’s primary market area is the Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire. As of December 31, 2011, Enterprise had nineteen full-service branch banking offices. In February 2012, the Company opened a branch in Pelham, New Hampshire branch.