Aon (AON) - Market capitalization

Market cap: C$124.02 Billion

As of April 2025 Aon has a market cap of C$124.02 Billion. This makes Aon the world's 212th 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 Aon from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	C$124.02 B	10.89%
2024	C$111.83 B	44.72%
2023	C$77.28 B	-8.27%
2022	C$84.24 B	-0.18%
2021	C$84.39 B	37.04%
2020	C$61.58 B	-2.46%
2019	C$63.14 B	32.81%
2018	C$47.54 B	12.92%
2017	C$42.10 B	6.77%
2016	C$39.43 B	14.26%
2015	C$34.51 B	12%
2014	C$30.81 B	14.75%
2013	C$26.85 B	56.19%
2012	C$17.19 B	11.71%
2011	C$15.39 B	0.7%
2010	C$15.28 B	42.26%
2009	C$10.74 B	-28.31%
2008	C$14.98 B	3.5%
2007	C$14.47 B	17.44%
2006	C$12.32 B	-8.3%
2005	C$13.44 B	48.08%
2004	C$9.07 B	-6.89%
2003	C$9.75 B	19.74%
2002	C$8.14 B	-46.54%
2001	C$15.23 B	13.6%
2000	C$13.41 B	-9.36%
1999	C$14.79 B	2.17%
1998	C$14.48 B	1.39%
1997	C$14.28 B	51.28%
1996	C$9.44 B

End of Day market cap according to different sources

On Mar 31st, 2025 the market cap of Aon was reported to be:

C$124.02 Billion

by Yahoo Finance

C$124.02 Billion

by CompaniesMarketCap

C$123.98 Billion

by Nasdaq

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Marsh & McLennan Companies MMC	C$172.42 B	39.03%	🇺🇸 USA
AXIS Capital AXS	C$11.65 B	-90.61%	🇧🇲 Bermuda
Arch Capital ACGL	C$51.98 B	-58.08%	🇧🇲 Bermuda
Prudential PUK	C$40.50 B	-67.34%	🇬🇧 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 Aon (AON)

Market cap: C$124.02 Billion