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Top 10 Commercial Insurance Brokers Of U.S. Business By Revenue, 2023 (1)

($ millions)

Rank Company Brokerage revenues
1 Marsh & McLennan Cos. Inc. (1), (2) $10,726
2 Aon PLC (1), (2) 7,744
3 Arthur J. Gallagher & Co. (1), (2) 6,211
4 Willis Towers Watson PLC (1) 4,931
5 Alliant Insurance Services Inc. (1), (2) 3,833
6 Brown & Brown Inc. (1), (2) 3,674
7 Truist Insurance Holdings Inc. (1), (2) 3,392
8 Acrisure LLC (1) 3,382
9 Hub International Ltd. (1), (2) 3,369
10 USI Insurance Services LLC (1), (2) 2,653
(1) Companies that derive more than 49 percent of revenues from personal lines are not ranked. (2) Reported U.S. acquisitions in 2023. Source: Business Insurance (www.businessinsurance.com), July/August 2024.