80/100BMarsh & McLennan Companies company profile
- CEO
- John Q. Doyle
- Employees
- 95,000
- Headquarters
- 1166 Avenue of the Americas, New York City, NY 10036-2774, US
- Sector
- Financial Services
- Industry
- Insurance - Brokers
- IPO date
- 30 Dec 1987
- Stock exchange
- NYSE
- ISIN
- US5717481023
Website:corporate.marsh.com
About the company
Marsh & McLennan Companies, Inc. (MRSH) functions as a leading professional services organization, delivering expert guidance and innovative solutions to clients across the vital domains of risk management, strategic planning, and human capital. Based in New York City, the firm maintains a substantial global workforce, employing approximately 65,000 full-time professionals. This entity serves as the parent company for several prominent advisory and consulting brands. These include Marsh, renowned for its insurance brokerage services; Guy Carpenter, a specialist in risk and reinsurance; Mercer, which provides comprehensive human resources and investment-related financial advice; and Oliver Wyman Group, an influential management and economic consultancy. Marsh & McLennan structures its operations into two core business segments. The "Risk and Insurance Services" division encompasses activities such as risk management, along with comprehensive insurance and reinsurance brokerage and services. The "Consulting" division offers a broad spectrum of services, including health, retirement, talent, and investment consulting, as well as specialized advice in management, economics, and brand strategy. The Risk and Insurance Services segment's operations are primarily conducted through Marsh and Guy Carpenter, while Mercer and Oliver Wyman Group are the key contributors to the Consulting segment's offerings.
Employees
Marsh & McLennan Companies had about 95,000 employees at the end of fiscal year 2025 (31 December 2025), by its annual report. That is 5.6% more than a year before.
Employees at each fiscal year end, as the company reports them in its annual report (10-K); revenue and net income per employee are the fiscal year's over that count.
Who owns Marsh & McLennan Companies
Institutions such as funds, banks and insurers held 91.6% of Marsh & McLennan Companies's shares on 30 June 2026, 1,533 of them reporting holdings to the SEC; the rest is held by individual investors and other shareholders.
Shares free to trade
Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.
Common questions about Marsh & McLennan Companies
Source: Financial Modeling PrepVerified against SEC filings