EX-23 9 exhibit232024.htm EX-23
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements:

Registration Statement |
Form | Number | Purpose
S-8 | 333-55773 | Pertaining to Aon's stock award plan, stock option plan, and employee stock purchase plan
S-8 | 333-103344 | Pertaining to the Aon Stock Incentive Plan
S-8 | 333-106584 | Pertaining to Aon's deferred compensation plan
S-8 | 333-145928 | Pertaining to the Aon Stock Incentive Plan
S-8 | 333-174788 | Pertaining to Aon's 2011 stock incentive plan and 2011 employee stock purchase plan
S-4 | 333-178991 | Pertaining to the registration of 355,110,708 Class A Ordinary Shares of Aon Global Limited, and in the related Proxy Statement / Prospectus of Aon Global and Aon Corporation contained therein
S-8 | 333-184999 | Pertaining to Aon plc Company Share Save Plan
S-8 | 333-199759 | Pertaining to the registration of an additional 9,000,000 Class A Ordinary Shares to be issued pursuant to the Aon plc 2011 Incentive Plan
S-8 | 333-235296 | Pertaining to the registration of an additional 5,000,000 Class A Ordinary Shares to be issued pursuant to the Aon plc 2011 Incentive Plan
S-3ASR | 333-272818 | Pertaining to the registration of debt securities, Class A Ordinary Shares, preference shares, share purchase contracts and share purchase units of Aon plc, debt securities of Aon Global Holdings plc, debt securities of Aon Corporation, debt securities of Aon North America, Inc. and the related guarantees of each of Aon plc, Aon Global Limited, Aon Global Holdings plc, Aon Corporation and Aon North America, Inc.

Our reports dated February 18, 2025, with respect to the consolidated financial statements and the effectiveness of internal control over financial reporting of Aon plc, included in this Annual Report (Form 10-K) of Aon plc for the year ended December 31, 2024.
/s/ ERNST & YOUNG LLP
Chicago, Illinois
February 18, 2025