PDF of Press Release

NEW YORK, July 23, 2007 — Marsh & McLennan Companies, Inc. (MMC) plans to announce second quarter results on Tuesday, August 7, 2007 in a news release to be issued before the market opens. The release will also be available on MMC's website at www.mmc.com.

Michael G. Cherkasky, president and chief executive officer of MMC, and Matthew B. Bartley, chief financial officer, will lead a discussion with investors on financial results, including a question and answer period, at 8:30 a.m. Eastern Time on August 7.

To participate in the teleconference, please dial 866 564 7444. Callers from outside the United States should dial 719 234 0008. The access code for both numbers is 3681547. The live audio webcast may be accessed at www.mmc.com. A replay of the webcast will be available approximately two hours after the event at the same web address.

Marsh & McLennan Companies, Inc. (MMC) is the world's premier provider of advice and solutions in risk, strategy and human capital. It is the parent company of Marsh, the world's leading risk and insurance services firm; Guy Carpenter, the world's leading risk and reinsurance specialist; Kroll, the world's leading risk consulting company; Mercer, the world's leading consultancy in its field; Oliver Wyman, a leading global management consultancy; and Putnam Investments, one of the largest investment management companies in the United States. More than 55,000 employees provide analysis, advice, and transactional capabilities to clients in over 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.