Arthur J. Gallagher & Co. Acquires Zayla Partners, LLC

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 OperationsInc, LLC

June 24, 2024

Staffing & HR

Arthur J. Gallagher & Co. acquired OperationsInc, LLC, a Norwalk, Connecticut-based HR consulting firm that provides HR, payroll, HRIS, talent acquisition and employee training services. Terms were not disclosed; David Lewis and his team will remain in Norwalk and report into Gallagher's Global Human Resources & Compensation Consulting leadership. The deal expands Gallagher's employee benefits consulting capabilities and service offering across U.S. clients.

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 Dean R. Casey & Associates

May 6, 2025

Financial Services

Arthur J. Gallagher & Co. (Gallagher) has acquired Dallas-based employee benefits brokerage Dean R. Casey & Associates. Dean Casey and his team will join Gallagher’s Dallas office to bolster the firm’s small-group benefits brokerage capabilities in Texas; 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 The Equinox Agency, LLC

July 17, 2025

Insurance

Arthur J. Gallagher & Co. has acquired The Equinox Agency, LLC, an employee health and benefits consulting firm based in Emmaus, Pennsylvania. The Equinox team will remain in place and integrate with Gallagher’s Northeast employee benefits consulting and brokerage operations to expand Gallagher’s benefits capabilities in the Lehigh Valley region; terms were not disclosed.