Founded in 1852, The Hanover Insurance Group offers a range of property and casualty products through an extensive network of independent agents. Its personal lines segment markets automobile, homeowners and ancillary coverage to individuals and families. Its commercial lines segment provides small- and medium-sized businesses with commercial liability, commercial automobile, workers compensation and other commercial coverage. The Hanover Insurance Group owns and operates The Hanover Insurance Company, Citizens Insurance Company of America, AMGRO, Opus Investment Management and Life Operations. The Hanover Insurance Group also offers trust and real estate investment management services, mutual funds, and education savings, executive bonus and payroll deduction plans. Headquartered in Worcester, Mass., The Hanover Insurance Group maintains a location in Portland, Maine.