Arthur J. Gallagher & Co. Acquires Centennial Insurance Agency, LLC

Arthur J. Gallagher & Co. Acquires Denver Agency

August 8, 2022

Insurance

Arthur J. Gallagher & Co. (Gallagher) acquired Denver, Colorado-based Denver Agency, a private client personal-lines insurance brokerage specializing in high-net-worth and ultra-high-net-worth clients. The Denver Agency team will continue to operate from their current location as part of Gallagher's U.S. personal lines and small-business property/casualty operations; terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Tyler Insurance Agency

October 16, 2018

Insurance

Arthur J. Gallagher & Co. acquired El Centro, California–based Tyler Insurance Agency; terms were not disclosed. Tyler Insurance Agency, founded in 1921, provides property/casualty insurance and risk management across southern and central California with strengths in agribusiness, public entities, utilities, schools and construction; the Tyler principals and staff will continue to operate under Gallagher's Southwest region leadership.

Arthur J. Gallagher & Co. Acquires The John Galt Insurance Agency

February 5, 2024

Insurance

Arthur J. Gallagher & Co. has acquired Fort Lauderdale-based John Galt Commercial Insurance Agency, LLC and John Galt Insurance Agency, Inc. The acquisition strengthens Gallagher's property/casualty capabilities in condominium and multi-family real estate across Florida; the John Galt team will remain in place under Gallagher's Southeast retail P/C leadership.

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.

Arthur J. Gallagher & Co. Acquires Cornerstone Commercial & Personal Insurance Services, Inc.

July 1, 2024

Insurance

Arthur J. Gallagher & Co. acquired Rancho Cucamonga, California–based Cornerstone Commercial & Personal Insurance Services, Inc.; terms were not disclosed. Cornerstone’s founders Phil and Allison Hakopian and their team will remain in place, joining Gallagher’s Southwest retail property/casualty brokerage under Scott Firestone to strengthen Gallagher’s homeowners association and regional commercial insurance capabilities.

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.