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

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 BMR Insurance (Murray Gardner Insurance Agency)

December 27, 2024

Insurance

Arthur J. Gallagher & Co. has acquired Murray Gardner Insurance Agency Inc., dba BMR Insurance, a Tustin, California-based retail insurance agency serving commercial and personal lines across Southern California. The deal will integrate BMR into Gallagher’s Southwest retail brokerage operations to expand its retail brokerage capabilities in the region; terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Willis Towers Watson Treaty Reinsurance Brokerage Operations

December 1, 2021

Insurance

Arthur J. Gallagher & Co. completed the acquisition of substantially all of the treaty reinsurance brokerage operations from Willis Towers Watson plc. The deal combines Gallagher's existing reinsurance business with the acquired operations to form Gallagher Re — a unified global reinsurance platform with roughly 2,400 colleagues across more than 70 offices in 31 countries, enhancing Gallagher's reinsurance capabilities and analytics.

Arthur J. Gallagher & Co. Acquires RMA General Limited

March 3, 2025

Insurance

Arthur J. Gallagher & Co. acquired New Zealand-based insurance broker RMA General Limited; terms were not disclosed. RMA provides commercial and personal insurance as well as life and health solutions across New Zealand, and its team will join Gallagher's New Zealand retail brokerage operations to expand Gallagher's brokerage capabilities in the market.

Arthur J. Gallagher & Co. Acquires MGC Group and AAFBC

January 4, 2023

Insurance

Arthur J. Gallagher & Co. acquired Corporate Insurance Analysts, Inc. (dba MGC Group) and The Agents Association of FB Companies (AAFBC). The acquisition expands Gallagher Affinity’s group/association insurance capabilities and brings John Matthews and his team into Gallagher’s Affinity North America operations; terms were not disclosed.

Arthur J. Gallagher & Co. Acquires MACK Insurance Services

August 5, 2025

Insurance

Arthur J. Gallagher & Co. has acquired Australia-based MACK Insurance Services, a commercial insurance broker focused on the agriculture sector. Lizzie Carver and her team will join Gallagher’s Australian brokerage operations from offices in Wagga Wagga and Narrandera, New South Wales; terms were not disclosed.