Marsh & McLennan Companies, Inc. is an American worldwide professional services, risk management, and insurance brokerage firm with headquarters in New York.
In 2012, it had approximately 54,000 employees and recorded an annual revenue of $11.9 billion. In 2013, Marsh & McLennan Companies was ranked the 228th largest corporation in the United States by the 2013 Fortune 500 list, and the 5th largest U.S. company in the diversified financial industry. Marsh & McLennan Companies was also ranked 29th on the 2012 Bloomberg Businessweek 50, the magazine's annual ranking of the S&P 500's top 50 performing companies.
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