First nine months ($m)Revenues Change (%)Organic growth (%)Operating profitChange (%)profit margin (%)²
 20112010  20112010 20112010
Aon¹4,956.04,616.07.02.0969.0829.016.919.618.0
MMC¹4,729.04,278.011.05.0921.0747.023.319.517.5
Willis2,633.02,504.05.03.0485.0576.0-15.818.423.0
Arthur J Gallagher¹1,143.11,002.714.02.0178.6175.81.615.617.5