White Mountains is an insurance holding company with business interests in property and casualty insurance and reinsurance. The company conducts its business through OneBeacon, White Mountains Re, Esurance, and White Mountains Advisors.
80 South Main Street
New Hampshire, United States
|2019-07-29||First Long Island Investors||Corporate Minority|
|2019-06-20||Noblr||Corporate Minority - II||Hudson Structured Capital Management, and Third Point Reinsurance|
|2019-06-03||Elementum Advisors||Corporate Minority|
|2018-04-02||NSM Insurance Group||Corporate Majority - II||$388M|