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 June 26, 2025 is $76.54B.
Sector Industry Market Cap Revenue
Finance Insurance Brokers $76.542B $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 $106.582B 24.11
Arthur J Gallagher (AJG) United States $81.294B 30.76
Hannover Ruck SE (HVRRY) Germany $37.431B 15.44
Brown & Brown (BRO) United States $31.070B 27.16
Willis Towers Watson Public (WTW) United Kingdom $29.624B 17.85
Ryan Specialty Holdings (RYAN) United States $17.612B 36.67
Erie Indemnity (ERIE) United States $15.765B 29.05
EToro Group (ETOR) Israel $5.325B 0.00
Tiptree Financial (TIPT) United States $0.838B 9.85
EHealth (EHTH) United States $0.127B 0.00
Huize Holding (HUIZ) China $0.022B 0.00
Oxbridge Re Holdings (OXBR) Cayman Islands $0.014B 0.00