Top 10 Commercial Insurance Brokers Of U.S. Business By Revenue, 2015 (1)

($ millions)

Rank Company Brokerage revenues
1 Marsh & McLennan Cos. Inc. (2) $6,327
2 Aon P.L.C.  6,052
3 Willis Towers Watson P.L.C. (2) 3,981
4 Arthur J. Gallagher & Co. 2,713
5 BB&T Insurance Holdings Inc. 1,676
6 Brown & Brown Inc. 1,657
7 Wells Fargo Insurance Services USA Inc.  1,316
8 Hub International Ltd. 1,147
9 USI Insurance Services L.L.C. 1,028
10 Lockton Cos. L.L.C. (3) 996
(1) Companies that derive less than 50 percent of revenues from commercial retail brokerage or employee benefits are not ranked. (2) Reported U.S. acquisitions in 2015. (3) Fiscal year ending April 30. Source: Business Insurance (www.businessinsurance.com), July 18, 2016.