More Contact Info

Customer Service:

200 Hubbard Road Guilford, Connecticut 06437

(203) 458-5823

265 Franklin Street, 9th Floor Boston, Massachusetts 02110

(617) 725-7122

Customer Service Number:

(603) 640-2200

23 South Main Street, Suite 3B Hanover, New Hampshire 03755

Headquarters:

+1 441 278 3160

Fax:

+1 (441) 278 3170

Other Info

Other Info (opening hours):

Additional Fax Number:

Principal Executive Office +1 (603) 640 2250

Company Address

White Mountains Insurance Group, Ltd.

26 Reid Street

Hamilton ,

Bermuda

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