Marsh & McLennan Companies Inc. logo

Marsh & McLennan Companies Inc.

MRSH | NYSE
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$203.51
+$2.89 (+1.44%)
Nov 2, 2026, 10:59 AM ET · Market open

Company Profile

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.

Key Executives

Name Position
Dean Klisura Vice Chair, President & CEO of Marsh Re
John Quinlan Doyle President, Chief Executive Officer & Director
Patrick Tomlinson Vice Chair, President & CEO of Marsh People and Investments
Carmen Fernandez Senior Vice President & Chief People Officer
Dina Shapiro Chief Tax Officer
Jay H. Gelb Head of Investor Relations of Marsh
John Jones Senior Vice President, Chief Marketing & Communications Officer
Katherine J. Brennan Senior Vice President & General Counsel
Mark Christopher McGivney Executive VP, CFO & COO
Martin C. South Senior VP & Chief Client Officer
Paul Beswick Senior VP and Global Chief Information & Operations Officer
Stacy Mills Vice President, Controller & Chief Accounting Officer

Latest SEC Filings

Date Type Title
Sep 21, 2026 25-NSE Filing
Sep 03, 2026 4 Filing
Sep 03, 2026 4 Filing
Sep 02, 2026 144 Filing
Sep 02, 2026 144 Filing
Aug 18, 2026 4 Filing
Aug 18, 2026 4 Filing
Aug 18, 2026 4 Filing
Aug 18, 2026 4 Filing
Aug 18, 2026 4 Filing
View All SEC Filings ➞
Marsh & McLennan Companies Inc.
Marsh & McLennan Companies Inc. logo
Country United States
IPO Date Dec 30, 1987
Industry Insurance - Brokers
Sector Financial Services
Employees 95,000
CEO John Q. Doyle

Contact Details

1166 Avenue of the Americas New York City, New York 10036-2774 United States

Stock Details

Ticker Symbol MRSH
Exchange NYSE
Fiscal Year January - December
Reporting Currency USD
CIK Code 0000062709
CUSIP Number 571748102
ISIN Number US5717481023
SIC Code 6411

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