TOP TEN COMMERCIAL INSURANCE BROKERS OF U.S. BUSINESS BY REVENUES, 2010 (1)

($ millions)

Rank Company Brokerage revenues
1 Marsh & McLennan Cos. Inc. $4,662.2
2 Aon Corp. 4,242.4
3 Willis Group Holdings P.L.C. 1,650.0
4 Wells Fargo Insurance Services USA Inc. 1,649.5
5 Arthur J. Gallagher & Co. 1,557.2
6 BB&T Insurance Services Inc. 1,078.6
7 Brown & Brown Inc. 964.0
8 USI Holdings Corp. 632.2
9 Lockton Cos. L.L.C. (2) 578.8
10 Hub International Ltd. 510.3

(1) Companies that derive more than 50 percent of revenues from commercial retail brokerage or employee benefits.
(2) Fiscal year ending April 30.

Source: Business Insurance, July 18, 2011.