Top 10 Commercial Insurance Brokers Of U.S. Business By Revenue, 2020 (1)

($ millions)

Rank Company Brokerage revenues
1 Marsh & McLennan Cos. Inc. (1), (2) $8,115
2 Aon PLC (1) 5,019
3 Willis Towers Watson PLC  4,643
4 Arthur J. Gallagher & Co. (1) 4,128
5 Brown & Brown Inc. (1) 2,590
6 Truist Insurance Holdings Inc. (1) 2,434
7 Hub International Ltd. (1) 2,077
8 USI Insurance Services LLC (1) 1,929
9 Acrisure LLC (1) 1,871
10 Alliant Insurance Services Inc. (1)  1,778
(1) Companies that derive more than 49 percent of revenues from personal lines are not ranked. (2) Reported U.S. acquisitions in 2020. (3) Acquired PayneWest Insurance Inc. on April 21, 2021. Source: Business Insurance (www.businessinsurance.com), July/August 2021.