Aon plc

Aon Center
200 East Randolph Street
Chicago, IL 60601
(312) 381-1000

Alight Solutions

4 Overlook Point
Lincolnshire, IL 60069
(224) 737-7000
*Please contact for questions regarding a Retirement/Savings Plan administered by Alight Solutions, which may have formerly been administered by Aon

Investor Relations

Aon plc
c/o Investor Relations
MSC# 17510 P.O. Box 1447
Lincolnshire, IL 60069
(847) 442-0622

For current/former Aon employees:

Please contact Aon Retirement
Services for questions regarding the
Aon Savings Plan 1-855-625-5500

Please contact Fidelity for questions or
enrollment in the Aon Employee Stock
Purchase Plan 1-800-544-9354

Stock Transfer Agent, Registrar and Dividend Reinvestment Plan Administrator

Computershare Trust Company, N.A. serves as the Company’s stock transfer agent, registrar and administrator of the company’s dividend reinvestment and direct stock purchase plan. Questions and correspondence regarding the shares of common stock that you own in registered form and dividends paid on those shares may be directed to Computershare at the following address:

First Class/Registered/Certified Mail:

Computershare Investor Services
P.O. Box 43078
Providence, RI 02940-3078
United States of America

Investor Centre™ portal:

Overnight/Courier Services:

Computershare Investor Services
150 Royall St., Suite 101
Canton, MA 02021
United States of America

Via Telephone:
Within the U.S. and Canada: (855) 231-9429
Outside the U.S. and Canada: (732) 491-0717
TDD/TTY for the hearing impaired: (800) 952-9245

Services available to registered stockholders and participants in the Dividend Reinvestment and Direct Stock Purchase Plan via Computershare’s Investor Centre website include:
- Address Updates
- Manage your dividend payment options and dividend reinvestment options
- Certify your account for tax reporting purposes
- Verify your account balances
- Sell shares (if held in book-entry form)

Investor Relations Disclaimer

You are about to review presentations, reports, filings and/or other materials regarding Aon plc (NYSE: AON) that contain time-sensitive information. The information contained therein is only current as of the date thereof. Aon expressly disclaims any obligation to review, update or correct these materials after the date thereof. Aon may update, amend, supplement or otherwise alter the information contained in any such materials by subsequent presentations, reports, filings, or other means without notice.

Certain statements made on this web site or in materials accessed in or through this section of our web site are “forward-looking statements,” which are subject to risks and uncertainties, and Aon's actual results may differ (possibly materially) from those indicated in such statements. See Legal Notice for further information regarding such statements and additional disclaimers with respect to the materials and sites that you may access through the Investors section of our Web site.