Marsh & McLennan Companies, Inc.
Marsh & McLennan Companies, Inc. (MMC) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
mmc · market cap & enterprise value · FMP · as of Jan 13, 2026
Core market cap & key metrics
As of Jan 13, 2026, Marsh & McLennan Companies, Inc. (MMC) has a market cap — also referred to as its net worth or valuation — of $89.8B, making it one of the top most valuable companies globally. Market Cap = $182.70 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Financial Services sectorAbout Market Cap, Net Worth & Valuation
Marsh & McLennan Companies, Inc. (MMC) has a market cap — also referred to as its net worth or valuation — of $89.8B as of Jan 13, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Marsh & McLennan Companies, Inc. reached its all-time high market cap of $130.0B on Apr 3, 2025. Comparing the Marsh & McLennan Companies, Inc. market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Marsh & McLennan Companies, Inc. net worth vs peers and ask how Marsh & McLennan Companies, Inc. valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
MMC market cap · 6 questionsMarsh & McLennan Companies, Inc.'s net worth — measured as market capitalization — is $89.8B as of Jan 13, 2026. It ranks #0 globally. Market Cap = $$182.70 (price) × shares outstanding.