| Exhibit Number | | | | | | Description of Exhibit | | |
| 2.1 | | | | | | Agreement and Plan of Merger, by and among Aon plc, Randolph Acquisition Corp., Randolph Merger Sub LLC, NFP Intermediate Holdings A. Corp and NFP Parent Co, LLC, dated as of December 19, 2023 (incorporated by reference to Exhibit 2.1 to Aon’s Current Report on Form 8-K filed with the SEC on December 20, 2023). | | |
| 3.1 | | | | | | Memorandum and Articles of Association of Aon plc (Incorporated by reference to Exhibit 3.1 to Aon’s Current Report on Form 8-K filed with the SEC on June 4, 2021). | | |
| 10.1# | | | | | | Amendment to Employment Agreement, dated as of April 2, 2024, by and among Aon plc, Aon Corporation and Gregory C. Case (Incorporated by reference to Exhibit 10.1 to Aon plc’s Current Report on Form 8-K filed with the SEC on April 3, 2024). | | |
| 10.2# | | | | | | Letter Agreement, dated as of May 30, 2024, by and between Aon Corporation and Edmund Reese (Incorporated by reference to Exhibit 10.1 to Aon plc’s Current Report on Form 8-K filed with the SEC on June 4, 2024). | | |
| 10.3# | | | | | | Amendment to International Assignment Letter, dated June 24, 2024, between Aon Corporation and Greg Case (Incorporated by reference to Exhibit 10.1 to Aon plc’s Current Report on Form 8-K filed with the SEC on June 26, 2024). | | |
| 10.4#+ | | | | | | Transition Agreement, dated June 24, 2024, between Aon Corporation and Christa Davies (Incorporated by reference to Exhibit 10.2 to Aon plc’s Current Report on Form 8-K filed with the SEC on June 26, 2024). | | |
| 10.5 | | | | | | Amendment No. 1 to the Term Loan Credit Agreement, dated as of February 16, 2024, by and among Aon plc, Aon Corporation, Aon Global Holdings plc, Aon Global Limited and Aon North America, Inc., Citibank, N.A., as administrative agent, and the lenders party thereto (Incorporated by reference to Exhibit 10.1 to Aon plc’s Current Report on Form 8-K filed with the SEC on April 19, 2024). | | |
| 10.6 | | | | | | Amendment No. 2 to the Credit Agreement, dated as of October 19, 2023, by and among Aon plc, Aon Corporation, Aon Global Holdings plc, Aon Global Limited and Aon North America, Inc., Citibank, N.A., as administrative agent, and the lenders party thereto (Incorporated by reference to Exhibit 10.2 to Aon plc’s Current Report on Form 8-K filed with the SEC on April 19, 2024). | | |
| 10.7 | | | | | | Amendment No. 4 to the Credit Agreement, dated as of September 28, 2021, by and among Aon plc, Aon Global Limited, Aon Global Holdings plc, Aon Corporation, Aon North America, Inc., Aon UK Limited, Citibank, N.A., as administrative agent, and the lenders party thereto (Incorporated by reference to Exhibit 10.3 to Aon plc’s Current Report on Form 8-K filed with the SEC on April 19, 2024). | | |
| 22.1* | | | | | | Subsidiary Guarantors and Issuers of Guaranteed Securities. | | |
| 31.1* | | | | | | Certification of CEO. | | |
| 31.2* | | | | | | Certification of CFO. | | |
| 32.1* | | | | | | Certification of CEO Pursuant to section 1350 of Title 18 of the United States Code. | | |
| 32.2* | | | | | | Certification of CFO Pursuant to section 1350 of Title 18 of the United States Code. | | |
| 101* | | | | | | Interactive Data Files. The following materials are filed electronically with this Quarterly Report on Form 10-Q: | | |
| | | | | | 101.SCH XBRL Taxonomy Extension Schema Document | | |
| | | | | | 101.CAL XBRL Taxonomy Calculation Linkbase Document | | |
| | | | | | 101.DEF XBRL Taxonomy Definition Linkbase Document | | |
| | | | | | 101.PRE XBRL Taxonomy Presentation Linkbase Document | | |
| | | | | | 101.LAB XBRL Taxonomy Calculation Linkbase Document | | |
| 104 | | | | | | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) | | |
| * Filed herewith | | | | | | | | |
| # Indicates a management contract or compensatory plan or arrangement | | | | | | | | |
| + Certain schedules and exhibits have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company agrees to furnish supplementally a copy of such schedules and exhibits, or any section thereof, to the SEC upon request. | | | | | | | | |