Notice of Results

Marsh & McLennan Co Inc
19 April 2005



News Release

Media Contacts:      Jim Fingeroth              Investor Contact:
Barbara Perlmutter   Kekst and Company          Mike Bischoff
MMC                  [phone]             MMC
[phone]                                  [phone]

                 MMC TO HOLD INVESTOR CALL ON MAY 3 TO DISCUSS
                           FIRST QUARTER 2005 RESULTS

NEW YORK, NEW YORK, April 19, 2005-Marsh & McLennan Companies, Inc. (MMC) plans
to announce first quarter 2005 results on Tuesday, May 3, 2005 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 Sandra
S. Wijnberg, senior vice president and chief financial officer, will lead a
discussion with investors on financial results, including a question and answer
period, at 10:00 a.m. Eastern Daylight Time on May 3.

To participate in the live teleconference, please dial [phone]. Callers
from outside the United States should dial [phone]. The live audio
webcast (which will be listen-only) may be accessed at www.mmc.com. A replay of
the webcast will be available beginning approximately two hours after the event.

A continuous telephone replay will be available beginning at 1:00 p.m. Eastern
Daylight Time, May 3 and continuing until midnight Eastern Daylight Time, May 9.
To listen to the replay, please dial [phone]. Callers from outside the
United States may listen to the replay by dialing [phone]. The access
code for both numbers is 7633433.

MMC is a global professional services firm with annual revenues exceeding $12
billion. 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; Putnam
Investments, one of the largest investment management companies in the United
States; and Mercer, a major global provider of consulting services.
Approximately 60,000 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, Pacific, and London stock exchanges. MMC's
website address is www.mmc.com.

This press release may contain statements relating to future results, which are
forward-looking statements as that term is defined in the Private Securities
Litigation Reform Act of 1995. Such statements may include, without limitation,
discussions concerning the matters raised in the complaint filed by the New York
Attorney General's Office stating a claim for, among other things, fraud and
violations of New York State antitrust and securities laws, the complaint filed
by the Connecticut Attorney General and numerous other investigations being
conducted by other state attorneys general and state superintendents or
commissioners of insurance, elimination of market services agreements ('MSA'),
the new business model of Marsh Inc., the adverse consequences arising from
market-timing issues at Putnam, including fines and restitution, revenues,
expenses, earnings and cash flow, capital structure, existing credit facilities,
and access to public capital markets including commercial paper markets, pension
funding, market and industry conditions, premium rates, financial markets,
interest rates, foreign exchange rates, claims, lawsuits and other
contingencies, and matters relating to MMC's operations and income taxes.

Such forward-looking statements are based on available current market and
industry materials, experts' reports and opinions, and long-term trends, as well
as management's expectations concerning current and future events impacting MMC.
Forward-looking statements by their very nature involve risks and uncertainties.
Factors that may cause actual results to differ materially from those
contemplated by forward-looking statements that we make include:

   • the impact of litigation and regulatory proceedings brought by the New
     York Attorney General's Office, other state attorneys general and state
     insurance regulators,

   • the impact of class actions, derivative actions and individual suits
     brought by policyholders and shareholders (including MMC employees)
     asserting various claims, including claims under U.S. securities laws,
     ERISA, RICO, unfair business practices and other common law or statutory
     claims,

   • loss of clients,

   • loss of producers or key managers,

   • inability to negotiate satisfactory compensation arrangements with
     insurance carriers or clients,

   • inability to reduce expenses to the extent necessary to achieve desired
     levels of profitability,

   • inability to collect previously accrued MSA revenue,

   • changes in competitive conditions,

   • movements in premium rate levels,

   • changes in the availability of, and the market conditions and the
     premiums insurance carriers charge for, insurance products,
 
   • mergers between client organizations,

   • insurance or reinsurance company insolvencies,

   • the impact of litigation and other regulatory matters stemming from
     market-timing issues at Putnam,

   • changes in worldwide and national equity and fixed income markets,

   • actual and relative investment performance of the Putnam mutual funds,

   • the level of sales and redemptions of Putnam mutual fund shares,

   • Putnam's ability to maintain investment management and administrative
     fees at current levels,

   • the ability of MMC to successfully access the public capital markets to
     meet long term financing needs,

   • the continued strength of MMC's relationships with its employees and
     clients,

   • the ability to successfully integrate acquired businesses and realize
     expected synergies,

   • changes in general worldwide and national economic conditions,

   • the impact of terrorist attacks,

   • natural catastrophes,

   • changes in the value of investments made in individual companies and
     investment funds,

   • fluctuations in foreign currencies,

   • actions of regulators and law enforcement authorities,

   • changes in interest rates or the inability to access financial markets,

   • developments relating to claims, lawsuits and contingencies,

   • prospective and retrospective changes in the tax or accounting treatment
     of MMC's operations, and

   • the impact of tax and other legislation and regulation in the
     jurisdictions in which MMC operates.


Forward-looking statements speak only as of the date on which they are made, and
MMC undertakes no obligation to update any forward-looking statement to reflect
events or circumstances after the date on which it is made or to reflect the
occurrence of unanticipated events.

MMC is committed to providing timely and materially accurate information to the
investing public, consistent with our legal and regulatory obligations. To that
end, MMC and its operating companies use their websites to convey meaningful
information about their businesses, including the anticipated release of
quarterly financial results and the posting of updates of assets under
management at Putnam. Monthly updates of total assets under management at Putnam
will be posted to the MMC website the first business day following the end of
each month. Putnam posts mutual fund and performance data to its website
regularly. Assets for most Putnam retail mutual funds are posted approximately
two weeks after each month-end. Mutual fund net asset value (NAV) is posted
daily. Historical performance and Lipper rankings are also provided. Investors
can link to MMC and its operating company websites through www.mmc.com.




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