Aon plc

Market Cap (Mar-08-2026)

72.975 Billion USD

World Rank (Jan-05-2024)

293

Market Cap (Jan-05-2024)

58.241 Billion USD

World Rank (Jul-30-2023)

250

Market Cap (Jul-30-2023)

65.322 Billion USD

World Rank (Jan-07-2022)

292

Market Cap (Jan-07-2022)

62.305 Billion USD

World Rank (Jan-01-2021)

333

Market Cap (Jan-01-2021)

48.941 Billion USD

Company Rank in Country in 2023

Rank in USA in July-2023 is 125

Headquarters Country

USA

Nasdaq / NYSE Code

AON

CEO

Chairman

Founders

Employee Count

50,000

Employee Count as of Date

As on 2022

Headquarters City/State

Illinois

World Region

Americas

World Subregion

Northern America

Annual Revenue in USD

17,181 Million USD

Annual Operating Income in USD

4,344 Million USD

Annual Net Income in USD

3,695 Million USD

Annual Results for Period Ending

Dec-2025 ending year

Total Assets in USD

50,784 Million USD

Total Liabilities in USD

41,236 Million USD

Total Equity in USD

9,548 Million USD

Balance Sheet for Period Ending

Dec-2025 ending year

Business Sector

Company Website

Wikipedia

Yahoo

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Facebook

Company Profile

AON provides Professional Services related to Insurance, Reinsurance, Commercial Risk Solutions, Investment Solutions. Headquarters is in Illinois, USA.

As on 2022, AON has 50,000 employees.

AON annual revenue generated for period ending Dec-2022 was 12,479 million USD.

AON annual net income generated for period ending Dec-2022 was 2,589 million USD.

AON annual revenue generated for period ending Dec-2021 was 12,193 million USD.

Split of Annual Revenue by business segment for period ending Dec-2021:

Commercial Risk Solutions: 6,635
Reinsurance Solutions: 1,997
Health Solutions: 2,154
Wealth Solutions: 1,426

AON annual net income generated for period ending Dec-2021 was 1,255 million USD.

Total Assets as on Dec-2021 was 31,928 Million USD.

Total Liabilities as on Dec-2021 was 30,867 Million USD.

Total Equity as on Dec-2021 was 1,061 Million USD.

Annual Results Summary

AON - Annual Results - Revenue and Net Income - in Million USD:

Year - Ending	Revenue	Operating Income	Net Income
Dec-2023	13,376	3,822	2,564
Dec-2022	12,479	3,669	2,589
Dec-2021	12,193	2,214	1,255
Dec-2020	11,066	2,781	1,969
Dec-2019	11,013	2,169	1,532
Dec-2018	10,770	1,544	1,134
Dec-2017	9,998	1,065	1,226

Balance Sheet Summary

AON - Balance Sheet Summary - in Million USD:

Year Ending:	Total Assets	Total Liabilities	Total Equity
Dec-2023	33,959	34,701	-742
Dec-2022	32,704	33,133	-429
Dec-2021	31,928	30,867	1,061
Dec-2020	32,114	28,619	3,495
Dec-2019	29,405	26,030	3,375
Dec-2018	26,422	22,271	4,151
Dec-2017	26,088	21,505	4,583

Founded Year

1982

Institutional Investors

Top 30 Institutional Holder Names in AON as on SEP-30-2023

RANK	INSTITUTION NAME	DATE	SHARES HELD	CHANGE (SHARES)	CHANGE (%)	VALUE (IN 1,000S)
1	VANGUARD GROUP INC	09/30/2023	1,75,58,411	-19,632	-0.11%	$5,858,539
2	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	09/30/2023	1,36,11,164	-15,97,957	-10.51%	$4,541,501
3	BLACKROCK INC.	09/30/2023	1,31,38,173	-6,21,677	-4.52%	$4,383,683
4	CAPITAL WORLD INVESTORS	09/30/2023	97,75,993	1,81,740	1.89%	$3,261,858
5	STATE STREET CORP	09/30/2023	80,46,835	-3,09,837	-3.71%	$2,684,907
6	MORGAN STANLEY	09/30/2023	57,59,930	-83,472	-1.43%	$1,921,858
7	CAPITAL INTERNATIONAL INVESTORS	09/30/2023	55,02,384	-1,29,789	-2.30%	$1,835,925
8	WCM INVESTMENT MANAGEMENT, LLC	09/30/2023	49,14,189	-1,19,390	-2.37%	$1,639,668
9	MAWER INVESTMENT MANAGEMENT LTD.	09/30/2023	45,00,369	-92,729	-2.02%	$1,501,593
10	LAZARD ASSET MANAGEMENT LLC	09/30/2023	44,79,652	50,290	1.14%	$1,494,681
11	BERKSHIRE HATHAWAY INC	06/30/2023	43,35,000	0	0%	$1,446,416
12	GEODE CAPITAL MANAGEMENT, LLC	09/30/2023	37,54,215	-3,91,002	-9.43%	$1,252,631
13	SUSTAINABLE GROWTH ADVISERS, LP	09/30/2023	24,65,882	-81,520	-3.20%	$822,766
14	NORTHERN TRUST CORP	09/30/2023	22,44,909	18,500	0.83%	$749,036
15	GQG PARTNERS LLC	09/30/2023	21,91,462	-43,089	-1.93%	$731,203
16	MACKENZIE FINANCIAL CORP	09/30/2023	21,51,894	-56,852	-2.57%	$718,001
17	BANK OF AMERICA CORP /DE/	09/30/2023	21,41,563	-10,149	-0.47%	$714,554
18	NEUBERGER BERMAN GROUP LLC	09/30/2023	21,28,337	-2,55,142	-10.71%	$710,141
19	INDEPENDENT FRANCHISE PARTNERS LLP	09/30/2023	20,26,365	-13,846	-0.68%	$676,117
20	BANK OF NEW YORK MELLON CORP	09/30/2023	18,68,263	-1,05,275	-5.33%	$623,365
21	LONGVIEW PARTNERS (GUERNSEY) LTD	09/30/2023	18,31,003	5,601	0.31%	$610,932
22	EAGLE CAPITAL MANAGEMENT LLC	09/30/2023	17,40,289	-66,420	-3.68%	$580,665
23	FMR LLC	09/30/2023	15,23,946	55,703	3.79%	$508,480
24	LEGAL & GENERAL GROUP PLC	09/30/2023	13,94,387	-50,854	-3.52%	$465,251
25	ARTISAN PARTNERS LIMITED PARTNERSHIP	09/30/2023	13,11,515	7,093	0.54%	$437,600
26	UBS ASSET MANAGEMENT AMERICAS INC	09/30/2023	13,08,359	65,623	5.28%	$436,547
27	INVESCO LTD.	09/30/2023	13,02,804	-4,23,202	-24.52%	$434,694
28	MITSUBISHI UFJ KOKUSAI ASSET MANAGEMENT CO., LTD.	09/30/2023	12,89,621	90,036	7.51%	$430,295
29	CANTILLON CAPITAL MANAGEMENT LLC	09/30/2023	12,49,967	-4,881	-0.39%	$417,064
30	BOSTON PARTNERS	09/30/2023	12,12,143	-3,04,765	-20.09%	$404,444