LONDON  –  2 August 2005 – Aon has announced that Mike Henthorn has been appointed as Managing Director of Aon Insurance Managers (Isle of Man) Limited, a division of Aon Captive Services Group.

Mr Henthorn has successfully managed Aon’s corporate insurance broking operations in the Isle of Man for many years, during which time he has developed excellent background knowledge of Aon’s Isle of Man captive business.  He will be responsible for both the captive and broking operations on the Isle of Man.

Clive James, Group Managing Director for Aon Insurance Managers commented: “I am delighted to welcome Mike to the Aon Captive Services Group family. His considerable knowledge of the broking market and involvement in Isle of Man business issues will enhance our already successful Manx operations. The combination of the captive and broking operations will widen our skill base in the Isle of Man and provide further opportunities to expand. Mike will play a key part in this opportunity by using his knowledge and skills in this area. Duncan will initially work closely with Mike to ensure a smooth transition of the captive responsibilities.” 

Mike Henthorn added: “I am committed both to the ongoing success of the Aon operations on the Isle of Man and the Island economy in general.  We have huge opportunities here and I am looking forward to working with my talented Aon colleagues and friends in the Island business community and Government to achieve this.”

Mike Henthorn is the immediate past President of the Isle of Man Chamber of Commerce. He succeeds the previous MD of Aon Insurance Managers (Isle of Man) Limited, Duncan Donald, who has been promoted to the board of Aon Captive Services Group.

Note to Editors:



About Aon
Aon Corporation ( http://www.aon.com ) is a leading provider of risk management services, insurance and reinsurance brokerage, human capital and management consulting, and specialty insurance underwriting. There are 47,000 employees working in Aon's 500 offices in more than 120 countries. Backed by broad resources, industry knowledge and technical expertise, Aon professionals help a wide range of clients develop effective risk management and workforce productivity solutions.

Aon Captive Services Group (ACSG), a division of Aon Reinsurance, provides captive and alternative risk financing solutions.The division has over 500 staff based in numerous countries around the globe. The division is split into two businesses:

• Aon Insurance Managers (AIM) – Captive Management
• IRMG – Risk Management and Risk Finance Consulting

This press release contains certain statements relating to future results, which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995.  These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from either historical or anticipated results, depending on a variety of factors.  Potential factors that could impact results include the general economic conditions in different countries around the world, fluctuations in global equity and fixed income markets, exchange rates, rating agency actions, resolution of pending regulatory investigations and related issues, including those related to compensation arrangements with underwriters, pension funding, ultimate paid claims may be different from actuarial estimates and actuarial estimates may change over time, changes in commercial property and casualty markets and commercial premium rates, the competitive environment, the actual costs of resolution of contingent liabilities and other loss contingencies, and the heightened level of potential errors and omissions liability arising from placements of complex policies and sophisticated reinsurance arrangements in an insurance market in which insurer reserves are under pressure.  Further information concerning the Company and its business, including factors that potentially could materially affect the Company’s financial results, is contained in the Company’s filings with the Securities and Exchange Commission.