The Hanover Insurance Group, Inc., through its subsidiaries, provides various property and casualty insurance products and services for individuals and businesses in the United States. It operates in four segments: Core Commercial, Specialty, Personal Lines, and Other. The company offers commercial multiple peril, commercial automobile, workers' compensation, and other core commercial coverage; and professional and executive lines, marine, and surety and other, as well as specialty property and casualty products comprising Hanover program business, excess and surplus business, Hanover specialty industrial, and specialty general liability business coverage. It also provides personal automobile; and homeowners and other personal lines, including residences and personal property, liability cl…