Arthur J. Gallagher & Co. Acquires MACK Insurance Services

Arthur J. Gallagher & Co. Acquires Hann Insurance Brokers Pty Ltd

December 2, 2024

Insurance

Arthur J. Gallagher & Co. has acquired Lambton, New South Wales‑based Hann Insurance Brokers Pty Ltd; terms were not disclosed. Rhett Hann and his team will join Gallagher's Newcastle office, expanding Gallagher's retail property/casualty brokerage capabilities in Australia with added transport-sector expertise.

Arthur J. Gallagher & Co. Acquires M.J. Schuetz Insurance Services Inc.

December 18, 2024

Insurance

Arthur J. Gallagher & Co. has acquired Indianapolis-based M.J. Schuetz Insurance Services Inc. The acquisition expands Gallagher's Midwest retail property/casualty brokerage capabilities, integrating Schuetz's expertise in construction, landscaping, manufacturing and real estate into Gallagher's Great Lakes region operations.

Arthur J. Gallagher & Co. Acquires MCMM Services Limited

January 11, 2024

Insurance

Arthur J. Gallagher & Co. acquired UK-based MCMM Services Limited, a Mansfield-based provider of administrative and claims management services to members of Education Mutual. The acquisition expands Gallagher's UK education specialist capabilities and will integrate Les Marshall and his team into Gallagher's education practice.

Arthur J. Gallagher & Co. Acquires Tresidder Insurance Brokers

April 1, 2025

Insurance

Arthur J. Gallagher & Co. acquired Australia-based Tresidder Insurance Brokers to strengthen its specialty broking presence in Australia. Tresidder, which operates offices in Victoria and Queensland and serves commercial and personal lines clients across industries including manufacturing, food & beverage, biotech and agriculture, will join Gallagher’s Australia specialty broking division.

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 Coverys Insurance Services (retail agency assets)

November 16, 2023

Insurance

Arthur J. Gallagher & Co. acquired certain assets of the retail agency business of Coverys Insurance Services, an East Lansing, Michigan-based insurance broker specializing in medical malpractice and professional liability. Terms were not disclosed and the Coverys Insurance Services team will remain in East Lansing under the direction of Ryan Isaacs as part of Gallagher's Midwest retail P/C brokerage operations.