Private company

LIBERTY MUTUAL HOLDING Co INC.

Corporation registered in the United States, based in Boston, active since 2001. Summary from the record

Last updated Oct 21, 2026.

Overview

HeadquartersBoston, United States²
Legal formDomestic Benefit Corporation (including professional corporations)²
LEI549300GM9K6LH4B5UB57²
StatusActive²
LEI statusIssued and current²
Registered addressC/O Corporation Service Company, 02109 Boston, United States²
Registered withCorporations Division (Secretary of the Commonwealth's Office), 000805238²

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Corporate structure

LIBERTY MUTUAL HOLDING Co INC. sits at the top of its group. 61 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

LIBERTY MUTUAL HOLDING Co INC. Boston, Massachusetts, United States
- 5C Lending Partners Corp. Stake · Lutherville Timonium, Maryland, United States
- Fortress Private Lending Fund Stake · New York, New York
- OFFICE PROPERTIES INCOME TRUST Stake · Newton, Massachusetts
- Sound Point Direct Lending BDC Stake · New York, New York
- Willow Tree Capital Corp Stake · New York, New York
- America First Insurance Company Subsidiary · Boston, Massachusetts, United States
- AMERICAN FIRE AND CASUALTY COMPANY Subsidiary · Dover, New Hampshire, United States
- American States Insurance Company of Texas Subsidiary · Boston, Massachusetts, United States
- Arlington Insurance Company, Ltd. Subsidiary · Hamilton, Bermuda
- COLORADO CASUALTY INSURANCE COMPANY Subsidiary · Boston, Massachusetts, United States
- EMPLOYERS INSURANCE COMPANY OF WAUSAU Subsidiary · Boston, Massachusetts, United States
- EXCELSIOR INSURANCE COMPANY Subsidiary · Dover, New Hampshire, United States
- FIRST LIBERTY INSURANCE CORPORATION Subsidiary · Hoffman Estates, Illinois, United States
- Golden Eagle Insurance Corporation Subsidiary · Boston, Massachusetts, United States
- HAMILTON MANAGING AGENCY LIMITED Subsidiary · London, United Kingdom
- HAWKEYE-SECURITY INSURANCE COMPANY Subsidiary · Boston, Massachusetts, United States
- IRONSHORE HOLDINGS (U.S.) INC. Subsidiary · New York, New York, United States
- Ironshore Inc. Subsidiary · Boston, Massachusetts, United States
- Liberty Insurance Corporation Subsidiary · Boston, Massachusetts, United States
- Liberty Insurance Underwriters Inc. Subsidiary · Boston, Massachusetts, United States
- Liberty International Insurance Limited (利寶國際保險有限公司) Subsidiary · Hong Kong, Hong Kong
- Liberty Metals & Mining Holdings, LLC Subsidiary · Boston, Massachusetts, United States
- Liberty Mutual Fire Insurance Company Subsidiary · Boston, Massachusetts, United States
- Liberty Mutual Group Asset Management Inc. Subsidiary · Boston, Massachusetts, United States
- Liberty Mutual Insurance Company Subsidiary · Boston, Massachusetts, United States
- and 27 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); stakes of 5% or more it reported on Schedules 13D and 13G (5 companies). Each entity in the chart links to its source.

Timeline

Nov 28, 2001Founded LIBERTY MUTUAL HOLDING Co INC. is founded²

Stakes it holds

LIBERTY MUTUAL HOLDING Co INC. has told the SEC it owns more than 5% of 5 companies, latest first (Schedules 13D and 13G).

5C Lending Partners Corp.SCHEDULE 13G/A Nov 25, 2024 to Oct 1, 2026³
Willow Tree Capital CorpSCHEDULE 13G/A Nov 18, 2024 to Oct 1, 2026⁴
OFFICE PROPERTIES INCOME TRUSTSCHEDULE 13G Jul 10, 2026⁵
Sound Point Direct Lending BDCSCHEDULE 13G/A Apr 1, 2026 to Jul 9, 2026⁶
Fortress Private Lending FundSCHEDULE 13G Sep 5, 2025⁷

Sources

The numbers on this page point here. Each one links to the record it came from.