    <SEC-DOCUMENT>0001104659-21-008200-index.html : 20210127
    <SEC-HEADER>0001104659-21-008200.hdr.sgml : 20210127
    <ACCEPTANCE-DATETIME>20210127163124
    ACCESSION NUMBER:		0001104659-21-008200
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20210415
    FILED AS OF DATE:		20210127
    DATE AS OF CHANGE:		20210127

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			INNOVATIVE SOLUTIONS & SUPPORT INC
    		CENTRAL INDEX KEY:			0000836690
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
    		IRS NUMBER:				232507402
    		STATE OF INCORPORATION:			PA
    		FISCAL YEAR END:			0930

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-31157
    		FILM NUMBER:		21560175

    	BUSINESS ADDRESS:
    		STREET 1:		420 LAPP RD
    		CITY:			MALVERN
    		STATE:			PA
    		ZIP:			19355
    		BUSINESS PHONE:		6108899898

    	MAIL ADDRESS:
    		STREET 1:		420 LAPP ROAD
    		CITY:			MALVERN
    		STATE:			PA
    		ZIP:			19355
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>tm213748-1_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: tm213748-1_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>tm213748d1-pc_01proxybw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: tm213748d1-pc_01proxybw.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>tm213748d1-pc_02proxybw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: tm213748d1-pc_02proxybw.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>