Marsh & McLennan is a global professional services firm that provides advice and solutions in the areas of risk, strategy, and human capital. Founded in 1871, the company operates through several subsidiaries, including Marsh, Guy Carpenter, Mercer, and Oliver Wyman. It serves clients across various industries, helping them manage risks and improve performance. With headquarters in New York City, Marsh & McLennan has a presence in over 130 countries. The firm employs thousands of professionals who work collaboratively to deliver innovative solutions tailored to clients' needs. Its commitment to excellence has established it as a leader in the professional services sector.