OneBeacon Insurance Group, Ltd., through its subsidiaries, provides specialty property and casualty insurance products and services. The company’s Specialty Products segment offers professional liability, employment practices liability, management liability, and other tailored products; tuition reimbursement insurance; excess property solutions; various multi-line package insurance solutions for specialty programs overseen by dedicated agencies; environmental risk solutions; a range of commercial bonds; and multiperil crop insurance and crop-hail products. Its Specialty Industries segment provides ocean marine products, such as commercial hull and marine liabilities, ocean and air cargo coverage, yachts, and other marine products; inland marine insurance solutions for builders' risks, contractors' equipment, energy, installation floaters, fine arts, motor truck cargo, transportation, miscellaneous articles floaters, and warehousemen's legal liability; property, general liability, business auto, commercial umbrella, workers compensation, international, technology errors or omissions, information risks, and communications liability products for the technology industry; and coverage for accidental death and dismemberment, occupational accident, sports accident, non-truckers liability, vehicle physical damage, and other accidents. This segment also offers professional liability protection for the entertainment, sports, and leisure industries; and property and casualty risks, as well as professional liability comprised of law enforcement, public officials, and employment practices liability coverages. OneBeacon Insurance Group, Ltd. sells its products through a network of independent agents, regional and national brokers, wholesalers, and managing general agencies in the United States. The company is headquartered in Hamilton, Bermuda. OneBeacon Insurance Group, Ltd. is a subsidiary of White Mountains Insurance Group, Ltd.