Market capitalization of Marsh & McLennan Companies (MMC)

Market cap: NZ$158.93 Billion

As of December 2025 Marsh & McLennan Companies has a market cap of NZ$158.93 Billion. This makes Marsh & McLennan Companies the world's 221th 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	NZ$158.93 B	-14.51%
2024	NZ$185.89 B	25.84%
2023	NZ$147.72 B	14.27%
2022	NZ$129.27 B	0.8%
2021	NZ$128.25 B	55.95%
2020	NZ$82.24 B	-1.28%
2019	NZ$83.31 B	39.08%
2018	NZ$59.90 B	2.42%
2017	NZ$58.48 B	16.25%
2016	NZ$50.30 B	18.98%
2015	NZ$42.28 B	7.15%
2014	NZ$39.46 B	22.64%
2013	NZ$32.17 B	40.77%
2012	NZ$22.85 B	4.87%
2011	NZ$21.79 B	13.79%
2010	NZ$19.15 B	18.96%
2009	NZ$16.10 B	-25.1%
2008	NZ$21.49 B	19.54%
2007	NZ$17.98 B	-25.13%
2006	NZ$24.01 B	-5.25%
2005	NZ$25.35 B	4.37%
2004	NZ$24.28 B	-37.41%
2003	NZ$38.80 B	-18.34%
2002	NZ$47.52 B	-33.05%
2001	NZ$70.98 B	-2.6%
2000	NZ$72.87 B	49.05%
1999	NZ$48.89 B	71.62%
1998	NZ$28.48 B	30.52%
1997	NZ$21.82 B	105.12%
1996	NZ$10.64 B

End of Day market cap according to different sources

On Dec 15th, 2025 the market cap of Marsh & McLennan Companies was reported to be:

NZ$158.62 Billion

by Nasdaq

NZ$159.18 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Aon AON	NZ$131.24 B	-17.42%	🇬🇧 UK
Verisk Analytics VRSK	NZ$52.52 B	-66.95%	🇺🇸 USA
AXIS Capital AXS	NZ$14.44 B	-90.91%	🇧🇲 Bermuda
Arch Capital ACGL	NZ$61.46 B	-61.33%	🇧🇲 Bermuda
Prudential PUK	NZ$65.58 B	-58.73%	🇬🇧 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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