Marsh McLennan is the world’s leading professional services firm in risk, strategy and people.
We bring together experts from across our four global businesses — Marsh, Guy Carpenter, Mercer and Oliver Wyman — to help make organizations more successful and societies more resilient.
The impact of our collective strength
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We are a company of ideas and ideals.
With more than 85,000 colleagues based all over the world, our shared purpose — to make a difference in the moments that matter — has never been more important or more relevant. Change is our work, and it begins with us.
Experience Marsh McLennan
Global Risks 2023: Tensions Peak Between Cost of Living Crisis & Climate Action
Marsh McLennan to Host Fourth Quarter Earnings Investor Call on January 26
Equity = Possibility
We Are in Business to Expand What’s Possible
ESG @ Marsh McLennan
Accelerating Impact: 2021 ESG Report