Marsh & McLennan is a Fortune 500 professional services company, headquartered in New York City, USA. The company works in two segments: Risk & Insurance Services and Consulting, and includes four major companies: Marsh (insurance broking and risk management), Guy Carpenter (broking, strategic advisory and industry-leading analytics), Mercer (HR consulting), and Oliver Wyman (management consulting). Marsh & McLennan firms serve clients in over 130 countries and employ more than 60,000 staff members. Get updated info on the Marsh & McLennan share price at Capital.com.