Global Water Resources, Inc. — Proxy Solicitation & Information Statement 2023

May 4, 2023

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Notice of Annual Meeting of Stockholders

To be held on May 3, 2023

Dear Stockholders:

The 2023 Annual Meeting of Stockholders (the “Annual Meeting”) of Global Water Resources, Inc. will be held on Wednesday, May 3, 2023, at 11:00 a.m. Local Time, at our corporate headquarters, located at 21410 North 19th Avenue, Suite 205, Phoenix, Arizona 85027, for the purposes of:

• electing seven directors to serve on our board of directors for a term of office to expire at the 2024 Annual Meeting of Stockholders, with each director to hold office until his or her successor is duly elected or until his or her earlier resignation or removal;

• ratifying the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2023;

• approving, on an advisory basis, the compensation of our named executive officers; and

• transacting such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof.

We currently are not aware of any other matters scheduled to come before the Annual Meeting. All stockholders are cordially invited to attend the meeting, although only stockholders of record at the close of business as of March 13, 2023 are entitled to notice of, and to vote at, the Annual Meeting or at any adjournment or postponement thereof.

This year we are taking advantage of Securities and Exchange Commission rules that allow us to furnish proxy materials to stockholders via the Internet. On March 24, 2023, we sent a "Notice of Internet Availability of Proxy Materials" (the "Notice") to holders of our common stock as of the record date. The Notice describes how you can access our proxy materials as of March 24, 2023.

Whether or not you plan to attend the Annual Meeting, it is important that your shares be represented and voted. You may vote via the Internet or by mail before the Annual Meeting, or in person at the Annual Meeting. For specific instructions, please refer to the Notice. As always, we encourage you to vote your shares prior to the Annual Meeting.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON MAY 3, 2023

The Company’s proxy statement for the Annual Meeting and its 2022 annual report to stockholders are available at https://material.proxyvote.com/379463.

Sincerely,

/s/ Ron L. Fleming

Ron L. Fleming Chairman, President, and Chief Executive Officer

Correspondence: Global Water Resources, Inc. - Corporate Headquarters 21410 North 19th Avenue, Suite 205, Phoenix, AZ 85027

Phone: 480-360-7775 Fax: 844-232-3517

gwresources.com