Marsh & Mclennan Companies

Marsh & McLennan Companies, Inc. is a global professional services firm, headquartered in New York City with businesses in insurance brokerage, risk management, reinsurance services, talent management, investment advisory, and management consulting. Its four main operating companies are Guy Carpenter, Marsh, Mercer, and Oliver Wyman Group.

Marsh & McLennan Companies ranked #212 on the 2018 Fortune 500 ranking, the company's 24th year on the annual Fortune list and #458 on the 2017 Forbes Global 2000 List.

Marsh & McLennan's 2016 revenue of $13.2 billion ranked it #1 on Business Insurance's ranking of the world's largest insurance brokers.