Top 10 Commercial Insurance Brokers Of U.S. Business By Revenue, 2018 (1)

($ millions)

Rank Company Brokerage revenues
1 Marsh & McLennan Cos. Inc. (2), (3) $7,524.0
2 Aon PLC (2) 4,654.4
3 Willis Towers Watson PLC  3,954.1
4 Arthur J. Gallagher & Co. (2) 3,574.6
5 BB&T Insurance Holdings Inc. (2) 2,016.3
6 Brown & Brown Inc. (2) 2,009.9
7 Hub International Ltd. (2) 1,674.4
8 USI Insurance Services LLC (2) 1,665.4
9 Alliant Insurance Services Inc. (2) 1,346.2
10 Acrisure LLC (2) 1,323.0
(1) Companies that derive more than 49 percent of revenues from personal lines are not ranked. (2) Reported U.S. acquisitions in 2018 and 2019. (3) Pro forma to reflect the acquisition of Jardine Lloyd Thompson Group PLC in April 2019. Source: Business Insurance (www.businessinsurance.com), July 2019.