Gallagher Bassett (Arthur J. Gallagher) Acquires Reck & Co.

Gallagher Bassett (Arthur J. Gallagher) Acquires Mays Brown Solicitors

May 11, 2026

Insurance

Arthur J. Gallagher & Co. announced that its claims and risk management solutions subsidiary, Gallagher Bassett, has acquired London-based boutique maritime law firm Mays Brown Limited, doing business as Mays Brown Solicitors. The transaction adds niche shipping and maritime legal expertise to Gallagher Bassett’s existing marine capabilities; financial terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Krose GmbH & Co KG

February 26, 2026

Insurance

Arthur J. Gallagher & Co. announced it has acquired Bremen, Germany-based Krose GmbH & Co KG. Krose provides commercial insurance and reinsurance solutions, specializing in the design and placement of complex programs, and its risk professionals will be integrated into Gallagher’s European brokerage operations.

Gallagher Bassett (Arthur J. Gallagher) Acquires Caytons Law LLP (UK operations)

December 2, 2024

Legal Services

Gallagher Bassett, the claims and risk management subsidiary of Arthur J. Gallagher & Co., has acquired the UK operations of Caytons Law LLP, a London- and Bristol-based claims and legal management firm focused on professional indemnity and commercial liability insurance matters. Terms were not disclosed; the deal is intended to strengthen Gallagher Bassett's UK claims management and legal capabilities.

Arthur J. Gallagher & Co. (Gallagher Re) Acquires MGB Re

January 16, 2024

Insurance

Arthur J. Gallagher & Co., through its reinsurance division Gallagher Re, has acquired Toronto-based MGB Re. The acquisition will expand Gallagher Re's medical reinsurance capabilities and bring MGB's leadership team into Gallagher Re's North America operations; terms were not disclosed.

Arthur J. Gallagher / Gallagher Re Acquires Bay Risk Services Limited

March 6, 2023

Insurance

Arthur J. Gallagher & Co., through its reinsurance division Gallagher Re, has acquired the business and assets of UK-based Lloyd’s broker Bay Risk Services Limited, a member of the Optio Group. Bay Risk, founded in 2016 and specializing in structuring and placing delegated underwriting authority (binder) business for program managers, MGAs and Lloyd’s coverholders, will join Gallagher Re’s global programs practice; the existing Bay Risk leadership team will remain in place. Terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Regency Group

November 8, 2016

Insurance

Arthur J. Gallagher & Co. acquired Regency Group, a wholesale insurance broker and program administrator based in East Lansing, Michigan. Regency — known for workers' compensation programs for independent retail brokers and niche specialty programs for landscaping, retail hardware and restaurants — will continue to operate from East Lansing under the direction of Risk Placement Services, Inc., a Gallagher subsidiary; terms were not disclosed.