EX-23.1 12 ajg-ex23_1.htm EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements, as listed below, of Arthur J. Gallagher & Co., and in the related Prospectuses, where applicable, of our reports dated February 10, 2023, with respect the consolidated financial statements and schedule of Arthur J. Gallagher & Co., and the effectiveness of internal control over financial reporting of Arthur J. Gallagher & Co., included in this Annual Report (Form 10‑K) for the year ended December 31, 2022.

Form | Registration Statement No. | Description
Form S-8 | 333-87320 and 333-106535 | Arthur J. Gallagher & Co. 1988 Nonqualified and Non‑Employee Directors’ Stock Option Plans
Form S-8 | 333-106539 | Arthur J. Gallagher & Co. Restricted Stock Plan
Form S-8 | 333-174497 | Arthur J. Gallagher & Co. 2011 Long-Term Incentive Plan
Form S-8 | 333-197898 | Arthur J. Gallagher & Co. 2014 Long-Term Incentive Plan, Deferred Equity Participation Plan, Deferred Cash Participation Plan and Supplemental Savings and Thrift Plan
Form S-8 | 333-204976 | Arthur J. Gallagher & Co. Employee Stock Purchase Plan
Form S-8 | 333-221274 | Arthur J. Gallagher & Co. 2017 Long-Term Incentive Plan, Deferred Equity Participation Plan, Deferred Cash Participation Plan and Supplemental Savings and Thrift Plan
Form S-8 | 333-252830 | Arthur J. Gallagher & Co. Employees’ 401(k) Savings and Thrift Plan
Form S-8 | 333-258331 | Arthur J. Gallagher & Co. UK Employee Share Incentive Plan
Form S-3 | 333-254015 | Debt Securities, Guarantees, Common Stock, Preferred Stock, Warrants, Depositary Shares, Purchase Contracts, and Units
Form S-4 | 333-203203 333-214617 and 333-268400 | Shares of Common Stock
Form S-8 | 333-262899 | Arthur J. Gallagher & Co. Employees’ 401(k) Savings and Thrift Plan, Arthur J. Gallagher & Co. Supplemental Savings and Thrift Plan
Form S-8 | 333-268401 | Arthur J. Gallagher & Co. 2022 Long-Term Incentive Plan

/s/ Ernst & Young LLP
Ernst & Young LLP

Chicago, Illinois

February 10, 2023