The Hanover Insurance Group, Inc., through its subsidiaries, provides various property and casualty insurance products and services in the United States. The company operates through three segments: Commercial Lines, Personal Lines, and Other. The Commercial Lines segment offers commercial multiple peril, commercial automobile, and workers' compensation insurance products, as well as management and professional liability, marine, specialty industrial and commercial property, monoline general liability, surety, umbrella, fidelity, crime, and other commercial coverages. The Personal Lines segment provides personal automobile and homeowner's coverages, as well as other personal coverages, such as personal umbrella, inland marine, fire, personal watercraft, and other miscellaneous coverages. The Other segment offers investment management and advisory services to institutions, pension funds, and other organizations. The company markets its products and services through independent agents and brokers. The Hanover Insurance Group, Inc. was founded in 1852 and is headquartered in Worcester, Massachusetts.