Aon could be liable for more than the $50m it set aside to settle state investigations into its broker practices.
The company said it's own investigations had not dug up any evidence of bid-rigging or fraud as alleged by the New York attorney general Eliot Spitzer.
Investors reacted positively to the announcement and share prices rose by $1.97 to close at $24.52 on the New York Stock Exchange on Tuesday.
Aon's chief financial officer, David Bolger, said the $50m the company has designated for settling Spitzer's suit could increase.
"It's what we think is the appropriate number at this time, but it could change because we don't have a settlement," he said.
Hosted by comedian and actor Tom Allen, 34 Gold, 23 Silver and 22 Bronze awards were handed out across an amazing 34 categories recognising brilliance and innovation right across the breadth of UK general insurance.





































