About Us

Ownership

White Mountains Re Ltd is a wholly owned subsidiary of White Mountains Insurance Group, a publicly traded (WTM-NYSE), Bermuda domiciled holding company with worldwide interests in both insurance and reinsurance.

Organization

White Mountains Re Ltd. (also domiciled in Bermuda) is the holding company for the operations of the Group's three reinsurance operating units:

• White Mountains Re America, headquartered in New York City
• White Mountains Re Bermuda, headquartered in Hamilton, Bermuda
• White Mountains Re Sirius, headquartered in Stockholm, Sweden

• White Mountains Re Solutions, Ltd., headquartered in Simsbury, Connecticut
• White Mountains Re Services LLC, headquartered in New York City

Offices

Principal underwriting offices are in Bermuda, Greenwich, Hamburg, Liege, London, Miami, New York City, Singapore, Stockholm, Toronto, and Zurich.

Business

• Lead capacity for property, casualty, accident & health and marine exposures
• Substantial multi-line capacity in all territories
• Disciplined, professional underwriting
• Superior risk evaluation and pricing technology