Arthur J. Gallagher & Co. Acquires Hagan Insurance Group

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 Southern Insurance Group, LLC

September 11, 2023

Insurance

Arthur J. Gallagher & Co. acquired Columbia, Mississippi-based Southern Insurance Group, LLC. The acquisition expands Gallagher's retail property/casualty brokerage presence in Mississippi and the Southeast U.S.; Southern Insurance Group's team will remain in place and operate under Gallagher's Mid-South brokerage leadership.

Arthur J. Gallagher & Co. Acquires Hughes Insurance Agency, Inc.

November 21, 2023

Insurance

Arthur J. Gallagher & Co. acquired Queensbury, New York–based Hughes Insurance Agency, Inc.; terms were not disclosed. Hughes will join Gallagher Agency Alliance and its principals Linda Abodeely and Joe Koncikowski and their team will continue to operate from their current location under Gallagher's Global Small Business practice.

Arthur J. Gallagher & Co. Acquires Hunt Insurance Group

December 5, 2023

Insurance

Arthur J. Gallagher & Co. (Gallagher) has acquired Palos Heights, Illinois-based Hunt Insurance Agency, Inc., dba Hunt Insurance Group; terms were not disclosed. Hunt is a retail property/casualty agency specializing in labor unions and associated benefit funds across the Midwest — the Hunt leadership team will remain in place and operate under Gallagher's Midwest region retail property/casualty brokerage led by Ryan Isaacs.

Arthur J. Gallagher & Co. Acquires The Andersen Group

July 6, 2023

Insurance

Arthur J. Gallagher & Co. has acquired Chantilly, Virginia-based retail insurance agency The Andersen Group. The Andersen Group will operate under Gallagher's Mid-South retail property/casualty brokerage operations to enhance Gallagher's capabilities in the greater Washington, D.C. market; terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Bremer Insurance Agencies, Inc.

September 9, 2025

Insurance

Arthur J. Gallagher & Co. has acquired St. Paul–based Bremer Insurance Agencies, Inc., a subsidiary of Old National Bancorp; terms were not disclosed. The acquisition expands Gallagher's retail property/casualty brokerage footprint in the Upper Midwest, with Travis Hoaglund and his team joining Gallagher's Great Lakes region retail P/C operations.