Marsh & McLennan is a global professional services firm that specializes in risk management, insurance brokerage, and consulting

The company operates through several key segments, including Marsh, which provides insurance brokerage and risk management services; Guy Carpenter, which offers reinsurance and risk advisory services; Mercer, focusing on health and benefits consulting; and Oliver Wyman, which delivers management consulting services. By leveraging its extensive industry expertise and innovative solutions, Marsh & McLennan helps organizations navigate complex challenges related to risk and performance, ultimately enhancing their resilience and driving growth.