Arthur J. Gallagher & Co. (AJG) - Market capitalization

Market cap: €75.42 Billion

As of March 2025 Arthur J. Gallagher & Co. has a market cap of €75.42 Billion. This makes Arthur J. Gallagher & Co. the world's 217th 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 Arthur J. Gallagher & Co. from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	€75.42 B	9.65%
2024	€68.78 B	56.61%
2023	€43.92 B	18.52%
2022	€37.05 B	18.66%
2021	€31.23 B	61.45%
2020	€19.34 B	20.97%
2019	€15.99 B	34.89%
2018	€11.85 B	24.32%
2017	€9.53 B	8.37%
2016	€8.79 B	32.83%
2015	€6.62 B	3.95%
2014	€6.37 B	40.35%
2013	€4.54 B	37.99%
2012	€3.29 B	13.19%
2011	€2.90 B	22.65%
2010	€2.36 B	47.16%
2009	€1.61 B	-9.89%
2008	€1.78 B	17.19%
2007	€1.52 B	-30.76%
2006	€2.20 B	-11.73%
2005	€2.49 B	13.05%
2004	€2.20 B	-4.96%
2003	€2.32 B	-6.68%
2002	€2.48 B	-25.13%
2001	€3.32 B	23.81%
2000	€2.68 B	126.49%
1999	€1.18 B	80.64%
1998	€0.65 B	36.27%
1997	€0.48 B	13.13%
1996	€0.42 B

End of Day market cap according to different sources

On Mar 13th, 2025 the market cap of Arthur J. Gallagher & Co. was reported to be:

€75.42 Billion

by Yahoo Finance

€75.42 Billion

by CompaniesMarketCap

€75.41 Billion

by Nasdaq

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Aon AON	€78.09 B	3.55%	🇬🇧 UK
Marsh & McLennan Companies MMC	€103.58 B	37.34%	🇺🇸 USA
Brown & Brown BRO	€30.90 B	-59.02%	🇺🇸 USA

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 Arthur J. Gallagher & Co. (AJG)

Market cap: €75.42 Billion