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Ark

Ownership Period:
2021 – Present

Headquarters:
London, United Kingdom

Sector:
P&C Insurance

Ark is a specialized property and casualty (re)insurance company that offers coverages across five major lines of business: property, specialty, marine & energy, casualty and accident & health.  Ark underwrites select coverages through Lloyd’s Syndicates 4020 and 3902 and Additional Central Settlement Number 3832 in the United Kingdom and Group Ark Insurance Limited in Bermuda.

Since December 2022, White Mountains has been the lead investor in WM Outrigger Re, an Ark-sponsored Bermuda-based segregated accounts company that provides collateralized reinsurance capacity for Ark’s Bermuda global property excess of loss catastrophe portfolio.

White Mountains Insurance Group, Ltd.
  • 26 Reid Street, Suite 601
    Hamilton HM 11, Bermuda

    441-278-3160

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

    603-640-2200

  • 265 Franklin Street, Suite
    901 Boston, Massachusetts 02110

    617-725-7122

  • 200 Hubbard Road
    Guilford, Connecticut 06437

    203-458-5823

[email protected]

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