Notice of 2018 Annual Meeting of Stockholders 02T33F + + Important Notice Regarding the Availability of Proxy Materials for the PAR Technology Corporation Annual Meeting of Stockholders to be Held on June 8, 2018 Under Securities and Exchange Commission rules, you are receiving this Notice that the proxy materials for the 2018 Annual Meeting of Stockholders are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the Annual Meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The Proxy Statement and Annual Report on Form 10-K for 2017 are available at: : Easy Online Access — A Convenient Way to View Proxy Materials and Vote When you go online to view materials, you can also vote your shares. Step 4: Make your selection as instructed on each screen to select delivery preferences and vote. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Obtaining a Copy of the Proxy Materials – If you want to receive a copy of these documents, you must request one. There is no charge to you for requesting a copy. Please make your request for a copy as instructed on the reverse side on or before May 28, 2018 to facilitate timely delivery.

Notice of 2017 AnnuaNotice of 2018 Annual Meeting of Stockholders The 2018 Annual Meeting of Stockholders of PAR Technology Corporation (the “Company”) will be held on Friday, June 8, 2018 at 10:00 a.m. (local time), at the Turning Stone Resort Casino, Tower Meeting Rooms (Birch Room), 5218 Patrick Road, Verona, New York 13478 for the following purposes: Proposals to be voted on at the Annual Meeting are listed below along with the Board of Directors’ recommendations. Vote on Directors. The Board of Directors recommends a vote FOR each of the nominees listed below. 1. Nominees. Dr. Donald H. Foley Douglas G. Rauch Cynthina A. Russo Dr. John W. Sammon Savneet Singh James C. Stoffel Vote on Proposal 2. The Board of Directors recommends a vote FOR Proposal 2. 2. Approval, on a non-binding, advisory basis, of the compensation of the Company’s Named Executive Officers. Vote on Proposal 3. The Board of Directors recommends a vote FOR Proposal 3. 3. Ratification of the appointment of BDO USA, LLP as the Company’s independent auditors for its fiscal year ending December 31, 2018. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must vote online or by telephone or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the Meeting, please bring this notice with you.. Include in the message your full name and address, plus the number located in the shaded bar on the reverse, and state in the email that you want a paper copy of current meeting materials. You can also state your preference to receive a paper copy for future meetings. To facilitate timely delivery, all requests for a paper copy of the proxy materials must be received by May 29, 2017.02LGUD Here’s how to order a copy of the proxy materials and select a future delivery preference: Paper copies: Current and future paper delivery requests can be submitted via the telephone, Internet or email options below. Email copies: Current and future email delivery requests must be submitted via the Internet following the instructions below. If you request an email copy of current materials you will receive an email with a link to the materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a set of proxy materials. g Internet – Go to www.investorvote.com/PAR. Follow the instructions to log in and order a copy of the current meeting materials and submit your preference for email or paper delivery of future meeting materials. g Telephone – Call us free of charge at 1-866-641-4276 and follow the instructions to log in and order a paper copy of the materials by mail for the current meeting. You can also submit a preference to receive a paper copy for future meetings. g Email – Send email to investorvote@computershare.com with “Proxy Materials PAR Technology Corporation” in the subject line. Include in the message your full name and address, plus the number located in the shaded bar on the reverse side, and state in the email that you want a paper copy of current meeting materials. You can also state your preference to receive a paper copy for future meetings. To facilitate timely delivery, all requests for a paper copy of the proxy materials must be received by May 28, 2018.