Marsh & McLennan Cos., Inc. is a professional services firm, which engages in offering clients advice and solutions to risk, strategy, and people. It operates through the Risk and Insurance Services and Consulting segments. The Risk and Insurance Services segment is involved in risk management activities, as well as insurance and reinsurance broking and services. The Consulting segment offers health, wealth, and career solutions and products, and specialized management, strategic, economic, and brand consulting services. The company was founded by Henry W. Marsh and Donald R. McLennan in 1871 and is headquartered in New York, NY.