Arthur J. Gallagher Acquires Asset Partners Private Wealth Pty Ltd

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

March 31, 2026

Financial Services

Arthur J. Gallagher & Co. has announced the acquisition of Brisbane, Queensland-based International Insurance Brokers Pty Ltd. The deal terms were not disclosed. The International Insurance Brokers team will relocate to Gallagher’s Brisbane office and operate under Gallagher’s retail property/casualty brokerage leadership.

Arthur J. Gallagher & Co. Acquires Agilis Partners LLC

February 18, 2025

Wealth Management

Arthur J. Gallagher & Co. has acquired Waltham, Massachusetts-based Agilis Partners LLC, a retirement plan and investment consulting firm with offices in greater Boston, New York and Denver. The acquisition will enhance Gallagher's retirement plan and investment consulting capabilities; terms were not disclosed and Agilis leadership will remain in place.

Arthur J. Gallagher & Co. Acquires Wealth Management Partners Pty Ltd

January 10, 2025

Financial Services

Arthur J. Gallagher & Co. (Gallagher) has acquired Perth-based Wealth Management Partners Pty Ltd (WMP), a financial planning firm specializing in retirement plan risk management for individuals and corporate clients in Western Australia. The WMP leadership team will remain in place and integrate with Gallagher’s employee benefits and HR consulting operations in Australia; terms were not disclosed.

Arthur J. Gallagher & Co. to Acquire AssuredPartners for $13.45 Billion

December 9, 2024

Insurance

Arthur J. Gallagher & Co. will acquire AssuredPartners in an all-cash transaction valued at $13.45 billion. The deal is expected to close in the first quarter of 2025, subject to regulatory approvals and customary closing conditions.

Arthur J. Gallagher & Co. Acquires AssuredPartners

December 9, 2024

Insurance

Arthur J. Gallagher & Co. (Gallagher) signed a definitive agreement to acquire AssuredPartners, with the transaction expected to close in the first quarter of 2025. The deal value is about $13.45 billion gross (about $12.45 billion net after an estimated $1.0 billion deferred tax asset), and Gallagher expects ~$160 million in synergies and ~$500 million of integration costs. Gallagher subsequently closed the acquisition in August 2025.

Arthur J. Gallagher & Co. Acquires Shepard Insurance Group

November 26, 2024

Insurance

Arthur J. Gallagher & Co. announced the acquisition of Old Greenwich, Connecticut-based Shepard Insurance Group; terms were not disclosed. Shepard's leadership will remain in place, and the deal expands Gallagher's high-net-worth insurance offerings in the Northeast and Florida.