Marsh & McLennan Companies, Inc. is a leading global professional services firm specializing in risk, strategy, and people. The company operates through two primary business segments: Risk and Insurance Services, and Consulting. The Risk and Insurance Services segment, which accounts for approximately 64% of total revenue, includes Marsh (insurance broking and risk management) and Guy Carpenter (reinsurance and capital strategies). The Consulting segment, generating the remaining 36% of revenue, comprises Mercer (health, wealth, and career consulting) and Oliver Wyman (management, economic, and brand consulting). Marsh & McLennan serves a diverse clientele, including businesses, government entities, and individuals across more than 130 countries. The firm's competitive position is bolstered by its extensive global reach, deep industry expertise, and status as the world's largest insurance broker by revenue.
