Marsh & McLennan Companies to Webcast 2015 Annual Meeting of Shareholders on May 21

Marsh & McLennan Companies, Inc. (NYSE: MMC) will webcast its 2015 annual meeting of shareholders on Thursday, May 21, 2015, at 10:00 a.m. Eastern time.

The live, listen-only audio webcast will include the remarks of Marsh & McLennan Companies President and CEO Dan Glaser. The webcast can be accessed at www.mmc.com. A replay 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 is committed to 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]