Marsh & McLennan Companies Releases Its 201...

Employee Engagement Drives Firm’s Commitment and Progress

Marsh & McLennan Companies Releases Its 2011 Corporate Citizenship Update

Marsh & McLennan Companies, Inc.

Marsh & McLennan Companies, Inc. (NYSE: MMC), a global team of professional services companies offering clients advice and solutions in risk, strategy and human capital, today announced the release of its 2011 Corporate Citizenship Update, a brief overview of the Company's global corporate citizenship accomplishments. The 2011 update follows the Company’s first comprehensive report on its 2010 corporate citizenship achievements issued last year. The 2011 update also outlines goals for 2012, which include continuing efforts in driving environmental sustainability, new programs that encourage community involvement, and building on the Company’s diversity and inclusion strategy.

Highlights from the 2011 update include:

• Recognition for the Company’s carbon reduction and reporting efforts, by being named to the Carbon Disclosure Project’s (CDP) 2011 Carbon Disclosure Leadership Index and being awarded the prestigious Carbon Trust Standard across its core U.K. offices.
• A greener real estate portfolio that includes multiple LEED-certified facilities and progress toward a more environmentally conscious work environment, while sustaining a real estate portfolio reduction of 6.26% in 2011.
• Significantly increased participation in U.S. employee volunteering, which is focused primarily through national partnerships with the American Red Cross, Peace First, iMentor, Securities Industry and Financial Markets Association, StreetWise Partners, Tuesday’s Children and Volunteer Consulting Group.
• Diversity and inclusion initiatives such as expansion of the Company’s Employee Resource Groups, implementation of “Diversity Leadership Dialogues” with senior leadership and external outreach with organizations such as The Executive Leadership Council and the Hispanic Scholarship Fund.

“We are proud of our efforts toward being an environmentally conscious workplace, connecting with our communities through volunteering and pro bono services, and fostering a high-performing, inclusive work environment,” said Brian Duperreault, President and Chief Executive Officer of Marsh & McLennan Companies. “This update reflects our continued commitment to responsible corporate citizenship and the ongoing progress made by our Company and colleagues on these initiatives.”

In 2011, the Company took a major step toward a more unified, global approach to corporate social responsibility, refocusing its strategy to emphasize education as a key component of its commitment to helping communities and people at risk. The year also saw the development of a broader range of integrated client services and products, as well as intellectual capital related to sustainability. For example, the firm’s Board-level Corporate Responsibility Committee, chaired by Director Adele Simmons and formed in 2008 to oversee the Company’s responsibilities and activities as a corporate citizen, established a cross-Operating Company taskforce to explore climate change risk-related business opportunities.

Marsh & McLennan Companies will publish a fuller report in 2013 detailing its corporate citizenship activities in 2012 as part of a two-year cycle of producing comprehensive reports alternating with brief updates.

The 2011 Corporate Citizenship Update is available at www.mmc.com/CorporateCitizenship.

About Marsh & McLennan Companies

MARSH & McLENNAN COMPANIES (NYSE: MMC) is a global team of professional services companies offering clients advice and solutions in the areas of risk, strategy and human capital. 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 human resource consulting and related services; and Oliver Wyman is a global leader in management consulting. Marsh & McLennan Companies’ 53,000 colleagues worldwide provide analysis, advice and transactional capabilities to clients in more than 100 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.

MEDIA:
Marsh & McLennan Companies
Laura Cora, [phone]
[e-mail]
or
INVESTOR:
Marsh & McLennan Companies
Scott Douglas, [phone]
[e-mail]