Rated "A" By A.M. Best.

About OneBeacon

Headquartered in Boston, Massachusetts, the companies comprising the OneBeacon Insurance Group provides property-casualty and select specialty insurance solutions. We provide superior insurance solutions that are backed by flexibility, responsiveness, financial strength and integrity.
 

A Specialty Insurance Provider

In addition to the wide range of personal and commercial products and services that we offer, OneBeacon provides a broad array of specialty insurance solutions for niche markets

Part of the White Mountain Insurance Group

OneBeacon is a subsidiary of the White Mountains Insurance Group. White Mountains' principal businesses are conducted through its subsidiaries and affiliates in the business of property-casualty insurance and reinsurance. The company is publicly traded on the New York Stock Exchange and Bermuda Stock Exchange under the symbol "WTM."

Local Expertise and National Coverage

OneBeacon's headquarters are in Boston, Massachusetts, and we have offices throughout the U.S. Our local presence means we are accessible to support our customers when they need us most - after suffering a loss - and allows us to develop close relationships with out independent agent partners.