Aon has had its senior debt rating and commercial paper rating downgraded from stable to negative by Moody's.
A series of US firms have been downgraded in the wake of the New York attorney general's probe into the use of contingent commissions at Marsh & McLennan.
Moody's said rating change was prompted by potential uncertainties associated with the investigation as well as the possibility that Aon could decide to discontinue contingent commission arrangements.
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.




































