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.
We are a company of ideas and ideals.
With more than 80,000 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
ESG @ Marsh McLennan
Accelerating Impact: 2021 ESG Report
Marsh McLennan Re-elects Board of Directors During 2022 Stockholders’ Meeting
Dr. Swenja Surminski Joins as Managing Director of Climate and Sustainability
Marsh McLennan Reports First Quarter 2022 Results
From Our CEO
Leading With Purpose: 2021 Annual Report