
Marsh & McLennan Companies, Inc.
Marsh & McLennan Companies (MMC) is a global professional services firm providing risk management and insurance brokerage, reinsurance, human capital and investment consulting, and management consulting through its principal businesses — Marsh, Guy Carpenter, Mercer and Oliver Wyman. The company serves corporations, public sector entities and institutional clients across industries with advisory, broking and analytic offerings that combine insurance placement, reinsurance, talent and investment advice and strategic consulting. Founded in 1905 and headquartered in New York City, MMC operates on a global scale, serving clients in dozens of countries through an extensive network of offices worldwide. MMC competes in the insurance brokerage, reinsurance and management consulting sectors as a major industry player and Fortune 500 company. It is publicly traded on the New York Stock Exchange (MMC) and employs approximately tens of thousands of people globally, generating multi‑billion dollar annual revenues. Distinguishing characteristics include its integrated cross‑disciplinary model (risk transfer plus advisory), longstanding industry relationships, and a track record of growth via client engagements and strategic acquisitions. Recent company priorities emphasize digital transformation, advanced analytics and sustainability and talent advisory services to deepen client relationships and expand offerings; as a public company, MMC finances growth through operating cash flow and capital markets access rather than private venture funding.
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