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OneBeacon Insurance Group, Ltd.

OneBeacon Insurance

OneBeacon Insurance Group, Ltd. (OneBeacon) is a Bermuda-domiciled holding company, whose principal businesses are conducted through its U.S.-based property and casualty insurance subsidiaries. OneBeacon's operating companies provide a range of specialty insurance products and services sold through independent agencies, regional and national brokers, wholesalers and managing general agencies. OneBeacon's specialty insurance products are available nationwide.

OneBeacon's common shares are listed on the New York Stock Exchange under the symbol "OB". Market capitalization as of December 31, 2016 was $1.5 billion. White Mountains holds a 76% interest in OneBeacon.

OneBeacon's insurance operating subsidiaries consistently receive an "A" (excellent) rating from A.M. Best.

As of December 31, 2016, OneBeacon had $760 million in shareholders' equity and $1.1 billion in segment net written premium.


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