Arthur J. Gallagher & Co. Acquires Premier Brokerage Services, Inc.

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 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 Stewart, Brimner, Peters & Company, Inc.

March 20, 2023

Insurance

Arthur J. Gallagher & Co. acquired Fort Wayne-based retail insurance broker Stewart, Brimner, Peters & Company, Inc. (SBP); terms were not disclosed. SBP will continue operating from its Fort Wayne location and the existing leadership team will remain under the direction of Sean Gallagher as Gallagher expands its capabilities and presence in central and northern Indiana.

Arthur J. Gallagher & Co. Acquires B&W Insurance Agency

February 19, 2026

Insurance

Arthur J. Gallagher & Co. has acquired B&W Insurance Agency, Inc., a Washington, Pennsylvania-based personal and commercial insurance brokerage. Terms were not disclosed; the B&W team, including Paul Barzd III and Jim Cote, will remain in Washington and report into Gallagher Select as part of Gallagher's strategy to expand its retail brokerage footprint in southwest Pennsylvania.

Arthur J. Gallagher & Co. Acquires Benchmark Commercial Insurance Services

July 13, 2023

Insurance

Arthur J. Gallagher & Co. acquired Carlsbad, California-based Benchmark Commercial Insurance Services. The acquisition expands Gallagher's retail property/casualty brokerage presence in Southern California; Benchmark's principal Robert Cohen and his team will remain in place.

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.