Arthur J. Gallagher & Co. Acquires Dion Leadership, Inc.

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 Clements Worldwide

October 18, 2023

Insurance

Arthur J. Gallagher & Co. has acquired Clements Worldwide, a Washington, D.C.-based international insurance broker; terms were not disclosed. Clements' leadership and team will remain in place and will report into Gallagher's mid-South retail P&C brokerage operations, with the acquisition intended to bolster Gallagher's international capabilities and cross-selling opportunities.

Arthur J. Gallagher & Co. Acquires 3D Advisors

February 9, 2026

Insurance

Arthur J. Gallagher & Co. has acquired 3D Advisors, a Shelby Township, Michigan-based brokerage general agency that provides life insurance, annuity, and long-term care solutions for financial advisors. The acquisition is intended to expand Gallagher’s life, annuity and long-term care brokerage capabilities and deepen its employee benefits consulting and brokerage platform; terms were not disclosed.

Arthur J. Gallagher & Co. Acquires A.H. Horn and Associates (Horn)

August 14, 2023

Consulting

Arthur J. Gallagher & Co. acquired Toronto-based A.H. Horn and Associates Limited (dba Horn), a sales and leadership development consultancy. The Horn team will join Gallagher’s benefits and HR consulting operation in Canada to bolster the firm’s leadership advisory capabilities; financial terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Cleary Benefits Group Inc.

July 8, 2024

Insurance

Arthur J. Gallagher & Co. (Gallagher) has acquired Danbury, Connecticut-based Cleary Benefits Group Inc., a health and benefits consulting firm serving primarily mid-size to large commercial clients. Cleary's leadership team will remain in place and operate under Gallagher's Northeast region benefits organization; terms were not disclosed.

Arthur J. Gallagher & Co. Acquires Viking Bond Service, Inc.

March 21, 2023

Financial Services

Arthur J. Gallagher & Co. has acquired Phoenix-based Viking Bond Service, Inc., a surety bond agency founded in 2002. The acquisition expands Gallagher's surety capabilities and integrates Viking's team into Gallagher's retail property/casualty brokerage operations; terms were not disclosed.