Hanover Insurance Group, Inc. THG

What this company does

The company's primary business operations are property and casualty insurance products and services. It markets its products and services through independent agents and brokers in the United States. In 2025, the company generated approximately $6.3 billion in net premiums written, an increase of 3.9% from the prior year. It conducts its business operations through four reporting segments: Core Commercial, Specialty, Personal Lines and Other. Its Core Commercial segment generated $2.4 billion, or 36.4%, of consolidated operating revenues and $2.3 billion, or 36.0%, of net premiums written, for the year ended December 31, 2025. Its Personal Lines segment generated $2.7 billion, or 40.6%, of consolidated operating revenues and $2.6 billion, or 41.2%, of net premiums written, for the year ended December 31, 2025. The Hanover Insurance Group, Inc. is a holding company organized as a Delaware corporation in 1995. The company traces its roots to as early as 1852, when The Hanover Fire Insurance Company was founded.

Written from the business description in HANOVER INSURANCE GROUP, INC.'s annual report to the U.S. Securities and Exchange Commission, filed 20 February 2026. Every sentence was checked against that document before publication.