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Plymouth, Minnesota (Principal Executive Office)
Number of employees
OneBeacon Insurance Group, Ltd. ("OneBeacon") is a subsidiary of Intact Financial Corporation (TSX: IFC). OneBeacon’s underwriting companies offer specialty insurance products sold through independent agencies, regional and national brokers, wholesalers and managing general agencies.
2017- OneBeacon Acquired by Intact Financial Corporation
On September 28, 2017, OneBeacon Insurance Group, Ltd. was acquired by Intact Financial Corporation. The merger created a leading specialty insurer in North America, combining Intact’s leading commercial lines track record, deep data, claims and digital expertise with OneBeacon’s outstanding team and specialty lines capabilities.
2006- IPO & Specialty Niche
In 2001, the company had two specialty businesses—International Marine Underwriters and A.W.G. Dewar, ocean marine and tuition refund specialists, respectively. OneBeacon began forming additional specialty segments, starting with OneBeacon Professional Insurance (OBPI) in 2002.
In 2006, the company held its initial public offering (IPO), and began a full-specialization approach, starting new segments through teams of people or business acquisitions. Between 2009 and 2010, the company sold its nonspecialty commercial lines renewal rights and personal lines.
2001- White Mountains/CGU
On June 1, 2001, White Mountains Insurance Group, Ltd. acquired CGU’s U.S. operations and the company was renamed OneBeacon Insurance Group. Its name is derived from the company’s former “home town” address of 1 Beacon Street in Boston.
OneBeacon Specialty Businesses
Today, OneBeacon features multiple specialty units, and, through its underwriting companies, offers coverages in all 50 states.
The company’s specialty businesses include: A.W.G. Dewar, International Marine Underwriters, OneBeacon Accident & Health, OneBeacon Architects & Engineers, OneBeacon Entertainment, OneBeacon Environmental, OneBeacon Financial Institutions, OneBeacon Financial Services, OneBeacon Government Risks, OneBeacon Healthcare Group, OneBeacon Management Liability, OneBeacon Specialty Property, OneBeacon Surety Group and OneBeacon Technology Insurance.