Type	Name	Date
Indenture	Second Indenture Supplement, among Aon Corporation, AGH, the Guarantors and the Trustee	12/02/2021
Underwriting agreement	Underwriting Agreement, among Aon Corporation, AGH, Aon plc and AGL, and J.P. Morgan Securities LLC, BofA Securities, Inc. and Goldman Sachs & Co. LLC, as representatives of the several underwriters named therein	12/02/2021
Credit agreement	Credit Agreement, among Aon plc, Aon Corporation, Aon UK Limited, Aon Global Holdings plc and Aon Global Limited, Citibank, N.A., as administrative agent, and the lenders party thereto	09/30/2021
Credit agreement	Amendment No. 2 to the Five Year Credit Agreement, among Aon plc, Aon Corporation, Aon Global Holdings plc and Aon Global Limited, the lenders party thereto and Citibank, N.A., as administrative agent	09/30/2021
Underwriting agreement	Underwriting Agreement, among Aon Corporation, Aon plc, AGL, AGH, and Citigroup Global Markets Inc., Deutsche Bank Securities Inc. and Morgan Stanley & Co. LLC, as representatives of the several underwriters named therein	05/15/2020
Underwriting agreement	Underwriting Agreement, among the Company, the Guarantor and BofA Securities Inc., Morgan Stanley & Co. LLC and Wells Fargo Securities, LLC, as Representatives of the several Underwriters named therein	11/15/2019
Underwriting agreement	Underwriting Agreement, by and among the Company, the Guarantor and J.P. Morgan Securities LLC, Morgan Stanley & Co. LLC and HSBC Securities (USA) Inc., as Representatives of the several Underwriters named therein	12/03/2018
Indenture	Indenture, among the Company, the Guarantor and The Bank of New York Mellon Trust Company, N.A., as trustee (including the guarantee)	12/03/2018
Indenture	Indenture, among Aon plc, Aon Corporation and The Bank of New York Mellon Trust Company, N.A., as trustee (including the guarantee)	11/13/2015
Indenture	Indenture, among Aon plc, Aon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee (including the Guarantee)	05/24/2013
Underwriting agreement	Underwriting Agreement, by and among the Company, the Guarantor, Morgan Stanley & Co. LLC and Goldman, Sachs & Co., as Representatives of the several Underwriters named therein	05/24/2013
Registration rights agreement	Registration Rights Agreement	03/08/2013
Securities purchase agreement	Purchase Agreement	03/08/2013
Registration rights agreement	Registration Rights Agreement	12/13/2012
Indenture	Indenture	12/13/2012
Underwriting agreement	Underwriting Agreement, by and among the Company, Morgan Stanley & Co. Incorporated and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as Representatives of the several Underwriters named therein	05/27/2011
Indenture	Indenture, among Aon Finance N.S. 1, ULC, Aon Corporation and Computershare Trust Company of Canada	03/08/2011
Indenture	Indenture, between the Company and The Bank of New York Mellon Trust Company, National Association, as trustee	09/10/2010
Credit agreement	Amendment No. 1 to the Credit Agreement, among Aon, Citibank, N.A., as administrative agent, JP Morgan Chase Bank, N.A., as syndication agent, and the lenders party thereto, among Aon Corporation, Citibank, N.A., as administrative agent, and the lenders party thereto	08/16/2010

Type	Name	Date
By-Laws	Amended and Restated Bylaws of Aon Corporation	05/25/2011
By-Laws	Amended and Restated Bylaws of Aon Corporation	02/05/2009

Type	Name	Date
Employment agreement	Amendment to Employment Agreement, by and between Aon Corporation and Christa Davies	07/26/2021
Employment agreement	Amendment to Employment Agreement, by and between Aon Corporation and Christa Davies	04/25/2018
Employment agreement	AMENDMENT TO EMPLOYMENT AGREEMENT	04/25/2018
Employment agreement	Amended and Restated Employment Agreement, by and between Aon Corporation and Stephen P. McGill	07/14/2015
Employment agreement	Amendment to Employment Agreement, by and between Aon Corporation and Christa Davies	02/26/2015
Employment agreement	Amended and Restated Employment Agreement, by and between Aon Corporation and Kristi Savacool	02/26/2015
Employment agreement	Amended and Restated Employment Agreement, by and between Aon plc, Aon Corporation and Gregory C. Case	01/23/2015
Employment agreement	Amended and Restated Employment Agreement, between Aon Corporation and Gregory C. Case	11/17/2009
Employment agreement	Amendment to Employment Agreement between Aon Corporation and Andrew M. Appel	04/28/2009
Employment agreement	Amendment to Employment Agreement between Aon Corporation and Ted T. Devine	04/28/2009