Aon Market Cap 2010-2025 | AON

Aon market cap history and chart from 2010 to 2025. Market capitalization (or market value) is the most commonly used method of measuring the size of a publicly traded company and is calculated by multiplying the current stock price by the number of shares outstanding. Aon market cap as of May 30, 2025 is $79.23B.
Sector Industry Market Cap Revenue
Finance Insurance Brokers $79.233B $15.698B
Aon plc is a multinational corporation that offers risk management services, insurance and reinsurance brokerage, human resource consulting and outsourcing services worldwide. As an insurance broker, Aon utilizes its resources to develop the individual as well as group insurance programs. It offers its services globally across personal lines, mid-market companies and multinational companies. Currently, following a major realignment of principal service lines the company reports through four revenue lines, namely, Commercial Risk Solutions, Reinsurance Solutions, Wealth Solutions, and Health Solutions.
Stock Name Country Market Cap PE Ratio
Marsh & McLennan (MMC) United States $114.062B 25.81
Arthur J Gallagher (AJG) United States $87.561B 33.13
Hannover Ruck SE (HVRRY) Germany $38.136B 15.73
Brown & Brown (BRO) United States $32.014B 28.00
Willis Towers Watson Public (WTW) United Kingdom $31.260B 18.83
Ryan Specialty Holdings (RYAN) United States $18.354B 38.22
Erie Indemnity (ERIE) United States $16.446B 30.30
EToro Group (ETOR) $5.084B 0.00
Tiptree Financial (TIPT) United States $0.829B 9.74
EHealth (EHTH) United States $0.132B 0.00
Huize Holding (HUIZ) China $0.021B 0.00
Oxbridge Re Holdings (OXBR) Cayman Islands $0.013B 0.00