NEWCASTLE, 2 August 2006 –

Based in Hadrian House in Higham Place with over 25 employees, Aon’s growing insurance broking and risk management teams will offer clients first class service and, building on recent office wins in manufacturing and processing, will aggressively target new business in all sectors.

The new appointments are:

• Ian Mackersie, Client Management Director – Ian was headhunted by Aon to head up the Newcastle office due to his business acumen, technical insurance broking skills and leadership qualities. He is a well known figure in the Newcastle insurance industry and previously headed up the Newcastle office of competitor Alexander Forbes.
• Alan Green, Client Manager – In addition to his broking and claims skills, Alan’s ability to cast aside insurance jargon and focus on business requirements is key to his client facing role.
• Martin Currie, Business Development Manager – Martin will further strengthen the sales effort by targeting large local businesses. Joining from Hitachi Capital, Martin brings a wealth of commercial awareness and ability to see business from a client’s point of view.

Ian Mackersie, commenting on joining Aon, which has had an office in the city since the 1920s, said: “Newcastle has witnessed a renaissance over the last 10 years which has benefited the community and businesses alike. It is now a financial and legal hub, centre of educational excellence and prime tourist destination. We at Aon have never been more committed to providing the highest quality service to clients in all sectors of this vibrant city and my new role is to ensure we achieve this goal.”

Alongside the new appointments, the current team will also benefit from an extensive office refurbishment in their existing Hadrian House building. Mr Mackersie added: “We wanted to provide the best working environment for our people. By keeping this central location, we can service clients effectively whilst providing an accessible office for our employees who will enjoy good transport links and the city centre amenities.”

Notes to editor:

About Aon’s Commercial Insurance unit

Aon’s Commercial Insurance team delivers risk management and insurance services to businesses in all industry sectors in the UK with an annual turnover of £25m and above. Most clients are supplied with bespoke solutions, reflecting Aon’s Commercial Insurance’s technical, detailed and niche sector knowledge.  Other products and services include trade credit, premium finance, business continuity and risk control.

Clients include: Rolls Royce, London Underground, Formula One and Britvic

About Aon

Aon Corporation is a leading provider of risk management services, insurance and reinsurance brokerage, human capital and management consulting, and specialty insurance underwriting. There are 46,000 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.

This press release contains certain statements related to future results, or states our intentions, beliefs and expectations or predictions for the future 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: general economic conditions in different countries in which we do business around the world, changes in global equity and fixed income markets that could affect the return on invested assets, fluctuations in exchange and interest rates that could influence revenue and expense, rating agency actions that could affect our ability to borrow funds, funding of our various pension plans, changes in the competitive environment, our ability to implement restructuring initiatives and other initiatives intended to yield cost savings, our ability to execute the stock repurchase program, changes in commercial property and casualty markets and commercial premium rates that could impact revenues, changes in revenues and earnings due to the elimination of contingent commissions, other uncertainties surrounding a new compensation model, the impact of investigations brought by state attorneys general, state insurance regulators, federal prosecutors, and federal regulators, the impact of class actions and individual lawsuits including client class actions, securities class actions, derivative actions, and ERISA class actions, the cost of resolution of other contingent liabilities and loss contingencies, and the difference in ultimate paid claims in our underwriting companies from actuarial estimates. 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.

Aon Limited is authorised and regulated by the Financial Services Authority in respect of insurance mediation activities only.