Marsh & McLennan Companies (MMC) - Market capitalization

Market cap: C$125.99 Billion

As of December 2025 Marsh & McLennan Companies has a market cap of C$125.99 Billion. This makes Marsh & McLennan Companies the world's 224th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Marsh & McLennan Companies from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	C$125.99 B	-16.25%
2024	C$150.44 B	21.41%
2023	C$123.91 B	11.25%
2022	C$111.37 B	-0.24%
2021	C$111.64 B	47.56%
2020	C$75.66 B	3.25%
2019	C$73.28 B	33.89%
2018	C$54.73 B	4.81%
2017	C$52.22 B	11.51%
2016	C$46.83 B	16.66%
2015	C$40.14 B	11.89%
2014	C$35.87 B	27.47%
2013	C$28.14 B	50.53%
2012	C$18.69 B	8.06%
2011	C$17.30 B	17.14%
2010	C$14.77 B	20.04%
2009	C$12.30 B	-18.87%
2008	C$15.16 B	10.38%
2007	C$13.74 B	-30.25%
2006	C$19.70 B	-2.34%
2005	C$20.17 B	-3.09%
2004	C$20.81 B	-36.38%
2003	C$32.72 B	-16.69%
2002	C$39.28 B	-16.35%
2001	C$46.95 B	-2.95%
2000	C$48.38 B	31.29%
1999	C$36.85 B	59.65%
1998	C$23.08 B	27.55%
1997	C$18.09 B	75.75%
1996	C$10.29 B

End of Day market cap according to different sources

On Dec 14th, 2025 the market cap of Marsh & McLennan Companies was reported to be:

C$125.55 Billion

by Nasdaq

C$125.99 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Aon AON	C$104.99 B	-16.67%	🇬🇧 UK
Verisk Analytics VRSK	C$41.75 B	-66.86%	🇺🇸 USA
AXIS Capital AXS	C$11.22 B	-91.09%	🇧🇲 Bermuda
Arch Capital ACGL	C$48.24 B	-61.71%	🇧🇲 Bermuda
Prudential PUK	C$50.76 B	-59.71%	🇬🇧 UK

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Marsh & McLennan Companies (MMC)

Market cap: C$125.99 Billion