8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_____________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported) June 2, 2008

Marsh & McLennan Companies, Inc.

(Exact Name of Registrant as Specified in Charter)

Delaware	1-5998	36-2668272
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1166 Avenue of the Americas, New York, NY                                                    10036

(Address of Principal Executive Offices) (Zip Code)

Registrant’s telephone number, including area code (212) 345-5000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b)On June 2, 2008, Marsh & McLennan Companies, Inc. (“MMC”) issued a press release announcing that Matthew B. Bartley, MMC’s executive vice president and chief financial officer, will leave MMC.

A copy of the press release is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

99.1 Press release issued by Marsh & McLennan Companies, Inc. on June 2, 2008.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

MARSH & McLENNAN COMPANIES, INC.

By: /s/ Scott C. Budlong

Name: Scott C. Budlong

Title: Chief Securities & Governance Counsel,

Assistant Corporate Secretary

Date: June 2, 2008

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EXHIBIT INDEX

Exhibit No. Exhibit

99.1 Press release issued by Marsh & McLennan Companies, Inc. on June 2, 2008.

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EX-99

Exhibit 99.1

News Release

MMC CHIEF FINANCIAL OFFICER TO DEPART COMPANY

NEW YORK, June 2, 2008—Marsh & McLennan Companies, Inc. (MMC) today announced that Matthew B. Bartley, Executive Vice President and Chief Financial Officer, will leave the firm. MMC has commenced a search for a new CFO, and Mr. Bartley intends to remain with MMC to help ensure an orderly transition to his successor.

“Matt has made invaluable contributions to MMC during his seven years with the firm,” said Brian Duperreault, President and CEO. “He helped navigate the firm through exceptionally challenging times and was instrumental in bolstering MMC’s financial strength and liquidity. We are grateful for his professionalism, his longstanding commitment to this organization and his leadership of a first-class finance team.”

Mr. Bartley said, “I am proud of the significant strides we have made in recent years to restore MMC’s financial health and to position the company for future growth. I have great confidence that MMC is now firmly on the road to success.”

Mr. Bartley joined MMC as Vice President and Treasurer in 2001 and was named MMC’s CFO in 2006. Previously, he served for 10 years in senior international treasury and tax positions at PepsiCo, Inc., where he was responsible for global strategic transaction planning and execution across international businesses. He also was Vice President of Taxes at Engelhard Corporation, a multinational specialty chemicals and precious metals company.

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.

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