OneBeacon Insurance Group is a specialty lines insurer with roots dating back to 1831 and the Potomac Fire Insurance Company. Through its subsidiaries

OneBeacon Insurance Group is a specialty lines insurer with roots dating back to 1831 and the Potomac Fire Insurance Company. Through its subsidiaries, OneBeacon offers a range of specialty insurance products sold through select independent agents, regional and national brokers, and wholesalers throughout the United States. The company's businesses include OneBeacon Professional Insurance, International Marine Underwriters, OneBeacon Entertainment, Specialty Accident and Health, OneBeacon Govern...

OneBeacon Insurance Group is a specialty lines insurer with roots dating back to 1831 and the Potomac Fire Insurance Company. Through its subsidiaries, OneBeacon offers a range of specialty insurance products sold through select independent agents, regional and national brokers, and wholesalers throughout the United States. The company's businesses include OneBeacon Professional Insurance, International Marine Underwriters, OneBeacon Entertainment, Specialty Accident and Health, OneBeacon Government Risks, OneBeacon Energy Group, A.W.G. Dewar (tuition refund), collector cars and boats written through Hagerty Insurance Agency, OneBeacon Technology Insurance, OneBeacon Financial Services, OneBeacon Specialty Property, Property and Inland Marine, OneBeacon Excess and Surplus Lines, and AutoOn