Marsh & McLennan Companies to Hold Investor Call on April 30 to Discuss First Quarter Results

Marsh & McLennan Companies, Inc. (NYSE:MMC), a global professional services firm offering clients advice and solutions in risk, strategy, and people, plans to announce first quarter 2015 results on Thursday, April 30, 2015, in a news release to be issued before the market opens. The release will also be available on the Marsh & McLennan Companies website at www.mmc.com.

President and CEO Dan Glaser and CFO Mike Bischoff will lead a discussion with investors regarding financial results at 8:30 a.m. Eastern time on April 30. The discussion will include a question-and-answer period.

To participate in the teleconference, please dial [phone]. Callers from outside the United States should dial [phone]. The access code for both numbers is 6309663. 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.

About Marsh & McLennan Companies

MARSH & McLENNAN COMPANIES (NYSE: MMC) is a global professional services firm offering clients advice and solutions in the areas of risk, strategy, and people. Marsh is a global leader in insurance broking and risk management; Guy Carpenter is a global leader in providing risk and reinsurance intermediary services; Mercer is a global leader in talent, health, retirement, and investment consulting; and Oliver Wyman is a global leader in management consulting. With annual revenue of $13 billion and 57,000 colleagues worldwide, Marsh & McLennan Companies provides analysis, advice, and transactional capabilities to clients in more than 130 countries. The Company prides itself on being a responsible corporate citizen and making a positive impact in the communities in which it operates. Visit www.mmc.com for more information.

Marsh & McLennan CompaniesMedia:Edward L. Dandridge, +1 [e-mail]:Keith Walsh, +1 [e-mail]