2025 U.S.-Booked Air Volume: $50M
Primary Expense Supplier: SAP Concur
Consolidated Global TMC: Egencia
Global insurance, risk management and consulting firm Arthur J. Gallagher & Co. completed 33 acquisitions during 2025. Two of those—Assured Partners parent company Dolphin TopCo and Woodruff Sawyer—added roughly 12,000 employees, helping push the firm's total headcount to 72,000 by year-end.
Nevertheless, the firm's U.S.-booked air volume held steady year over year at $50 million, according to BTN estimates. Approximately 47 percent of AJG's employees are based in the United States.
AJG generated total revenue of $13.8 billion in 2025, up 21 percent year over year.