Marsh & McLennan Companies, Inc. (the “Company”) announced today that it has priced $250 million of 2.55% senior notes due 2018 and $250 million of 4.05% senior notes due 2023 (collectively, the “Notes”). The Company intends to use the net proceeds for general corporate purposes, which will include the redemption of $250 million of the outstanding principal amount of its existing 5.75% senior notes due September 2015. The closing of the Notes offering is expected to occur on September 27, 2013, subject to certain customary conditions. Goldman, Sachs & Co., HSBC, BofA Merrill Lynch and Deutsche Bank Securities are acting as joint book-running managers for the offering. Barclays, Citigroup, J.P. Morgan and Morgan Stanley are acting as co-managers for the offering. An effective shelf registration statement related to the Notes has previously been filed with the Securities and Exchange Commission. The offering and sale of the Notes are being made by means of a prospectus supplement and an accompanying base prospectus related to the offering, copies of which may be obtained from: (i) Goldman, Sachs & Co., Attention: Prospectus Department, 200 West Street, New York, New York 10282, telephone: 1-866-471-2526, facsimile: 1-212-902-9316 or email: email@example.com, (ii) HSBC Securities (USA) Inc., by phone (toll free): 1-866-811-8049, (iii) Merrill Lynch, Pierce, Fenner & Smith Incorporated at 222 Broadway, New York NY 10038, Attention: Prospectus Department or by email at firstname.lastname@example.org or by telephone at 1-800-294-1322 and (iv) Deutsche Bank Securities Inc. at 60 Wall Street, New York, New York 10005, Attention: Prospectus Group or by telephone at 800-503-4611 or by email at email@example.com. This press release does not constitute an offer to sell or a solicitation of an offer to buy any securities, nor does it constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale is unlawful.