On the Record · White Mountains Insurance Group
White Mountains Insurance Group subsidiaries, as it lists them
The subsidiaries White Mountains Insurance Group lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| ARK INSURANCE HOLDINGS LIMITED | BERMUDA |
| ARK INSURANCE HOLDINGS LIMITED | BERMUDA |
| ARK INSURANCE LIMITED | BERMUDA |
| HG GLOBAL LTD | BERMUDA |
| HG HOLDINGS LTD | BERMUDA |
| HG RE LTD | BERMUDA |
| HG SERVICES LTD | BERMUDA |
| PSC HOLDINGS LTD. | BERMUDA |
| WHITE MOUNTAINS HOLDINGS LTD | BERMUDA |
| WHITE MOUNTAINS INVESTMENTS (BERMUDA) LTD. | BERMUDA |
| WM HINSON (BERMUDA) LTD | BERMUDA |
| WM PAGET (BERMUDA) LTD | BERMUDA |
| AFSF V AIV PHOENIX AGGREGATOR LP | DELAWARE, USA |
| COPPER FUNDING, LLC | DELAWARE, USA |
| DISTINGUISHED, LLC | DELAWARE, USA |
| DISTINGUISHED CAPITAL, LLC | DELAWARE, USA |
| DISTINGUISHED GROUP, LLC | DELAWARE, USA |
| DISTINGUISHED PRIZE INDEMNITY, LLC | DELAWARE, USA |
| DISTINGUISHED PROGRAMS INS BROKERAGE, LLC | DELAWARE, USA |
| DISTINGUISHED PROGRAMS, LLC | DELAWARE, USA |
| DISTINGUISHED PROGRAMS RISK MANAGEMENT, LLC | DELAWARE, USA |
| DISTINGUISHED SPECIALTY INS. BROKERAGE, LLC | DELAWARE, USA |
| DISTINGUISHED SPECIALTY RISK MANAGEMENT, LLC | DELAWARE, USA |
| DP D&O MANAGEMENT , LLC | DELAWARE, USA |
| DP FINE ART AND COLLECTIBLES, LLC | DELAWARE, USA |
| DP INLAND MARINE MANAGEMENT, LLC | DELAWARE, USA |
| DP SURETY MANAGEMENT, LLC | DELAWARE, USA |
| DEPI HOLDINGS, LLC | DELAWARE, USA |
| IDP HOSPITALITY GROUP, LLC | DELAWARE, USA |
| IDP HOLDINGS, LLC | DELAWARE, USA |
| KUDU INVESTMENT HOLDINGS, LLC | DELAWARE, USA |
| KUDU INVESTMENT MANAGEMENT LLC | DELAWARE, USA |
| KUDU INVESTMENT US, LLC | DELAWARE, USA |
| PHOENIX INTERMEDIATE, LLC | DELAWARE, USA |
| PHOENIX MERGER PARENT, LLC | DELAWARE, USA |
| TK PARTNERS, LLC | DELAWARE, USA |
| WHITE MOUNTAINS ADVISORS LLC | DELAWARE, USA |
| WHITE MOUNTAINS CAPITAL, LLC | DELAWARE, USA |
| WHITE MOUNTAINS PARTNERS, LLC | DELAWARE, USA |
| WHITE MOUNTAINS SERVICES LLC | DELAWARE, USA |
| WM ADAMS HOLDINGS, INC | DELAWARE, USA |
| WM CLAY HOLDINGS, INC | DELAWARE, USA |
| WM JEFFERSON HOLDINGS, INC | DELAWARE, USA |
| WM LAFAYETTE HOLDINGS, LLC | DELAWARE, USA |
| WM LINCOLN HOLDINGS, LLC | DELAWARE, USA |
| WM MADISON HOLDINGS, INC | DELAWARE, USA |
| WM MONROE HOLDINGS, INC | DELAWARE, USA |
| WM MONROE BLOCKER GP, LLC | DELAWARE, USA |
| WM MONROE BLOCKER, L.P. | DELAWARE, USA |
| WM PHOENIX BLOCKER GP, LLC | DELAWARE, USA |
| WM PHOENIX BLOCKER, L.P. | DELAWARE, USA |
| WM PHOENIX PARENT, L.P. | DELAWARE, USA |
| WM PORTFOLIO HOLDINGS, LLC | DELAWARE, USA |
| WMP INVESTMENTS I, INC | DELAWARE, USA |
| WM TAYLOR HOLDINGS, INC | DELAWARE, USA |
| WM WEBSTER HOLDINGS, INC | DELAWARE, USA |
| TNUVA FINANCIT LTD | ISRAEL |
| WOBI INSURANCE AGENCY, LTD | ISRAEL |
| WHITE MOUNTAINS INVESTMENTS (LUXEMBOURG) S.A.R.L | LUXEMBOURG |
| ENTERPRISE ELECTRIC, LLC | TENNESSEE, USA |
| ACCIDENT & HEALTH UNDERWRITING LIMITED | UNITED KINGDOM |
| ACCIDENT & HEALTH CLAIMS LLP | UNITED KINGDOM |
| ARK CORPORATE MEMBER LIMITED | UNITED KINGDOM |
| ARK CORPORATE MEMBER NO. 2 LIMITED | UNITED KINGDOM |
| ARK CORPORATE MEMBER NO. 3 LIMITED | UNITED KINGDOM |
| ARK CORPORATE MEMBER NO. 4 LIMITED | UNITED KINGDOM |
| ARK SYNDICATE MANAGEMENT LIMITED | UNITED KINGDOM |
| KFO HOLDINGS LTD | UNITED KINGDOM |
| KWCP HOLDINGS UK LTD | UNITED KINGDOM |
| SYNDICATE ARK 4020 | UNITED KINGDOM |
| SYNDICATE NOA 3902 | UNITED KINGDOM |
| WM BIRKDALE LTD | UNITED KINGDOM |
| WM CAPITAL HOLDINGS LTD | UNITED KINGDOM |
| WM INTERNATIONAL HOLDINGS LTD | UNITED KINGDOM |
| WM REGENT, LTD | UNITED KINGDOM |
| RICHMOND RISK MANAGEMENT, INC | VIRGINIA, USA |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from White Mountains Insurance Group’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-27. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.