Marsh & McLennan Companies, Inc. is a global professional services firm that provides advice and solutions in the areas of risk, strategy, and people. It operates through two primary segments: Risk and Insurance Services, and Consulting. The Risk and Insurance Services segment, featuring Marsh as an insurance broker and Guy Carpenter as a risk and reinsurance specialist, offers risk management, insurance and reinsurance broking, strategic advisory, analytics, and program management services to businesses, public entities, insurance companies, associations, professional services organizations, and private clients. The Consulting segment, including Mercer for health, wealth, and career advice, solutions, and products, and Oliver Wyman for management, strategic, economic, and brand consulting, supports clients worldwide. Approximately half of its revenue comes from outside the US, underscoring its international presence. Founded in 1871 and headquartered in New York, New York, Marsh & McLennan Companies, Inc. plays a vital role in helping organizations navigate complex risks and optimize human capital strategies in the financial services sector.