Aon Consulting, the human capital consulting organization of Aon Corporation (NYSE: AOC), announced today the launch of its Electronic Discovery (E-Discovery) unit of its IT risk consulting group, which is a part of the organization's Financial Advisory and Litigation Consulting Services practice.

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"There is a growing need from law firms and companies for a provider that offers both superior E-Discovery services and expert consulting advice," said Gregory C. Case, president and chief executive officer of Aon Corporation. "It is our goal to fill this need by reinventing E-Discovery, taking the cost and waste out of the system, which will help clients win cases in a more timely and efficient manner."

Aon's team of highly-experienced E-Discovery experts and consultants will provide clients worldwide with customized solutions that include data collection, preservation, conversion, processing and hosting; digital data management; large-scale data warehousing; data mining and analytics; relationship/pattern identification and analysis; and multiple web-based tools to facilitate document review and production. The company's E-Discovery specialists will assist clients with a wide variety of cases ranging in size and scale, including highly complex multi-national matters.

"The E-Discovery experts we have assembled are world class," said Andrew Appel, chief executive officer of Aon Consulting Worldwide. "They include several individuals who were pioneers in the E-Discovery field. A number of these experts average more than 20 years of experience, and they all continue to lead the industry in best practices. Our clients will quickly realize the benefits of working with our E-Discovery team, as they provide faster, leaner and smarter solutions."

"No one else provides the same mix of advanced E-Discovery technologies and techniques to keep data secure and to get the job done right," said Jerry Barbanel, co-global leader of the Financial Advisory and Litigation Consulting Services practice. "Law firms and companies can now utilize our highly- personalized, case-specific services to assist in finding relevant data that can be crucial in determining the outcome of a case. To broaden our capabilities, Aon is in the process of developing proprietary E-Discovery solutions that will further enhance our value-added service offerings."

Additional information on Aon Consulting's E-Discovery services can be found at http://www.aonediscovery.com/ .

  For more information, contact:
  Joe Micucci, Aon Consulting, 312-381-4786, joe_micucci@aon.com.

  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 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.

Aon Consulting is among the top global human resources consulting firms, with 2005 revenues of $1.255 billion and 7,000 professionals in 120 offices throughout the world. Aon Consulting delivers integrated consulting solutions to help clients with employee benefits, human resources outsourcing, compensation, communication and management consulting.

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.

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SOURCE: Aon Corporation

CONTACT: Joe Micucci of Aon Consulting, +1-312-381-4786,
joe_micucci@aon.com

Web site: http://www.aon.com/
http://www.aonediscovery.com/