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Marsh & McLennan Companies, Inc. (MMC)
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The market capitalization for Marsh & McLennan Companies, Inc. (MMC) is $89.82 Billion, making it a Large Cap company. Market cap is calculated by multiplying the current stock price by the total number of shares outstanding.

Market Capitalization

$89.82B

$89.82 Billion

Calculation

Stock Price
$171.14
Shares Outstanding
524.83M
Market Cap
$89.82B

Market Cap = Price × Shares Outstanding

Size Classification

Large Cap

$10B - $1T

Companies with market capitalization between $10 billion and $1 trillion.

Market Cap Size Scale

Micro Cap

<$250M

Small Cap

$250M-$2B

Mid Cap

$2B-$10B

Large Cap

$10B-$1T

Mega Cap

>$1T

MMC Market Cap: $89.82 Billion

Related Valuation Metrics

Key Statistics

Market Cap$89.82 Billion
Stock Price$171.14
Shares Outstanding524.83M
Size CategoryLarge Cap
P/E Ratio20.30
P/B Ratio5.48
Data as of Thursday, June 11, 2026

About Marsh & McLennan Companies, Inc.

Marsh & McLennan Companies (MMC) operates as a leading global professional services organization, delivering expert guidance and innovative solutions to clients worldwide across the critical domains of risk, strategic planning, and human capital. Its operations are bifurcated into two primary divisions: Risk and Insurance Services, and Consulting. The Risk and Insurance Services arm provides an extensive range of risk management capabilities, encompassing strategic risk advice, risk transfer mechanisms, and solutions for risk control and mitigation. This segment is also proficient in insurance and reinsurance brokerage, offers sophisticated catastrophe and financial modeling, delivers associated advisory services, and manages insurance programs. Its diverse clientele includes businesses, governmental bodies, insurance companies, associations, specialized professional service organizations, and private individuals. Conversely, the Consulting division specializes in advisory services and products related to health, wealth, and career development. It also extends its expertise to specialized management, economic analysis, and brand strategy consulting. Founded in 1871, Marsh & McLennan Companies, Inc. maintains its corporate headquarters in New York, New York.

New York City, NY
90,000 employees
Financial Services / Insurance - Brokers
Sector
Financial Services
Industry
Insurance - Brokers
CEO
John Quinlan Doyle