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NEW YORK, May 19, 2008 — Marsh & McLennan Companies, Inc. (MMC) has appointed David R. Frediani as senior vice president, International and Client Development, effective immediately. Mr. Frediani will report to MMC President and CEO Brian Duperreault.

In his new position, Mr. Frediani will lead MMC's activities to leverage its geographic footprint around the world, and work to develop and enhance MMC's senior-level relationships with major clients in the U.S. and globally.

Mr. Frediani has been with MMC for more than 27 years, 24 of which have been spent on international assignments in Latin America, Asia, continental Europe and the U.K. He has held numerous positions in management, client relationship management, industry practices, business development, and marketing and communications.

MMC is a global professional services firm providing advice and solutions in the areas of risk, strategy and human capital. It is the parent company of a number of the world's leading risk experts and specialty consultants, including Marsh, the insurance broker and risk advisor; Guy Carpenter, the risk and reinsurance specialist; Mercer, the provider of HR and related financial advice and services; Oliver Wyman, the management consultancy; and Kroll, the risk consulting firm. With more than 55,000 employees worldwide and annual revenue exceeding $11 billion, MMC provides analysis, advice and transactional capabilities to clients in more than 100 countries. Its stock (ticker symbol: MMC) is listed on the New York, Chicago, and London stock exchanges. MMC's website address is www.mmc.com.