The Commerce Insurance Company, a property and casualty insurance subsidiary of MAPFRE U.S.A. Corp. (formerly The Commerce Group, Inc.), was founded in the town of Webster, Massachusetts in 1972. The company was founded to provide independent agents access to a company focused on agents and their customers' personal lines insurance needs. From its modest beginnings, The Commerce Insurance Company has grown to become the largest provider of private passenger automobile insurance in Massachusetts, insuring more than one of every four registered automobiles in the state. We offer Massachusetts drivers a variety of group automobile insurance discounts, including the tremendously popular AAA member discount. In addition, based on the most current available information, the company is leading provider of homeowners insurance and second leading writer of commercial automobile insurance in Massachusetts. All Commerce products are available through the more than 600 independent agents who represent the company. For information about our products, talk to any one of our agents. For the name of your nearest Commerce agent, consult the Agent Locator page on this website. Today, The Commerce Insurance Company writes nearly $1.6 billion in premium and employs more than 1,800 people at their Webster facilities. The Commerce Insurance Company ranks as the 18th largest personal automobile insurance group based on A.M. Best's 2010 report.