ISSC Innovative Solutions and Support Inc

See the reverse side of this notice to obtain proxy materials and voting instructions. *** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on <mtgdate>. You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. Meeting Information Meeting Type: <mtgtype> For holders as of: <recdate> Date: Time: <mtgtime> Location: 0000224576_1 R1.0.0.51160 INNOVATIVE SOLUTIONS AND SUPPORT,INC. INNOVATIVE SOLUTIONS AND SUPPORT, INC. C/O Broadridge Corporate Issuer Solutions PO Box 1342 Brentwood, NY 11717 Annual Meeting January 16, 2015 April 16, 2015 April 16, 2015 10:00 AM EDT 720 Pennsylvania Dr Exton, PA 19341

Please Choose One of the Following Voting Methods Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. How To Vote . Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. . . 0000224576_2 R1.0.0.51160 1. Notice & Proxy Statement 2. Form 10-K Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 02, 2015 to facilitate timely delivery.

Voting items 0000224576_3 R1.0.0.51160 The Board of Directors recommends you vote FOR the following: 1. Election of Directors Nominees 01 Geoffrey S. M. Hedrick 02 Winston J. Churchill The Board of Directors recommends you vote FOR the following proposal: 2 To ratify the appointment of Grant Thornton LLP as the Company's independent registered public accounting firm for the fiscal year ending September 30, 2015. NOTE: Such other business as may properly come before the meeting or any adjournment thereof

0000224576_4 R1.0.0.51160

THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLY TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: Signature (Joint Owners) Signature [PLEASE SIGN WITHIN BOX] Date Date To withhold authority to vote for any individual nominee(s), mark “For All Except” and write the number(s) of the nominee(s) on the line below. 0 0 0 0 0 0 0 0 0000224577_1 R1.0.0.51160 For Withhold For All All All Except The Board of Directors recommends you vote FOR the following: 1. Election of Directors Nominees 01 Geoffrey S. M. Hedrick 02 Winston J. Churchill INNOVATIVE SOLUTIONS AND SUPPORT, INC. C/O Broadridge Corporate Issuer Solutions PO Box 1342 Brentwood, NY 11717 VOTE BY INTERNET - www.proxyvote.com Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 P.M. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form. ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS If you would like to reduce the costs incurred by our company in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To sign up for electronic delivery, please follow the instructions above to vote using the Internet and, when prompted, indicate that you agree to receive or access proxy materials electronically in future years. VOTE BY PHONE - 1-800-690-6903 Use any touch-tone telephone to transmit your voting instructions up until 11:59 P.M. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you call and then follow the instructions. VOTE BY MAIL Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. The Board of Directors recommends you vote FOR the following proposal: For Against Abstain 2 To ratify the appointment of Grant Thornton LLP as the Company's independent registered public accounting firm for the fiscal year ending September 30, 2015. NOTE: Such other business as may properly come before the meeting or any adjournment thereof Please sign exactly as your name(s) appear(s) hereon. When signing as attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must sign. If a corporation or partnership, please sign in full corporate or partnership name, by authorized officer. Yes No Please indicate if you plan to attend this meeting

0000224577_2 R1.0.0.51160 Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting: The Notice & Proxy Statement, Form 10-K is/are available at www.proxyvote.com . INNOVATIVE SOLUTIONS AND SUPPORT, INC. 720 PENNSYLVANIA DRIVE, EXTON, PENNSYLVANIA 19341 THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS PROXY FOR THE APRIL 16, 2015 ANNUAL MEETING OF SHAREHOLDERS The undersigned hereby appoints Mr. Geoffrey S. M. Hedrick and Relland M. Winand and either of them as proxies, each with power of substitution, and hereby authorizes them to represent the undersigned and to vote, as designated below, all the shares of Common Stock held of record by the undersigned on January 16, 2015 at the Annual Meeting of Shareholders of Innovative Solutions and Support, Inc., to be held on April 16, 2015 at the Company’s corporate offices, 720 Pennsylvania Drive, Exton, Pennsylvania beginning at 10:00 a.m. local time, or at any adjournment or postponement thereof, upon the matters set forth in the Notice of Annual Meeting of Shareholders and Proxy Statement, receipt of which is hereby acknowledged. THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE AS TO ANY PARTICULAR ITEM, THIS PROXY WILL BE VOTED IN FAVOR OF THE NOMINEES LISTED IN PROPOSAL NO. 1, AND IN FAVOR OF PROPOSAL NO. 2. Continued and to be signed on reverse side