MMC to Hold Investor Call on February 12 to Dis...

Marsh & McLennan
                  

Marsh & McLennan Companies, Inc. (MMC) plans to announce fourth quarter and
year-end 2007 results on Tuesday, February 12, 2008 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.

Brian Duperreault, president and chief executive officer of MMC, and Matthew B.
Bartley, chief financial officer, will lead a discussion with investors on
financial results at 8:30 a.m. Eastern Time on February 12. Members of the
executive team will also participate. The discussion will include a
question-and-answer period.

To participate in the teleconference, please dial 877 857 6151. Callers from
outside the United States should dial 719 325 4773. The access code for both
numbers is 4922584. 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.

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; Kroll, the risk consulting firm; Mercer, the provider of HR and
related financial advice and services; and Oliver Wyman, the management
consultancy. With more than 55,000 employees worldwide and annual revenue of $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.

Contact: MMC
Media:
Christine Walton, 212-345-0675
[e-mail]
or
Investor:
Mike Bischoff, 212-345-5470
[e-mail]