Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - INNOVATIVE SOLUTIONS & SUPPORT INCFinancial_Report.xls
10-K - 10-K - INNOVATIVE SOLUTIONS & SUPPORT INCa2206644z10-k.htm
EX-23.1 - EX-23.1 - INNOVATIVE SOLUTIONS & SUPPORT INCa2206644zex-23_1.htm
EX-31.2 - EX-31.2 - INNOVATIVE SOLUTIONS & SUPPORT INCa2206644zex-31_2.htm
EX-32.1 - EX-32.1 - INNOVATIVE SOLUTIONS & SUPPORT INCa2206644zex-32_1.htm
EX-31.1 - EX-31.1 - INNOVATIVE SOLUTIONS & SUPPORT INCa2206644zex-31_1.htm

QuickLinks -- Click here to rapidly navigate through this document


Exhibit 21

SUBSIDIARIES OF THE REGISTRANT

Innovative Solutions and Support, LLC, a Pennsylvania limited liability company
IS&S Delaware, Inc., a Delaware corporation
IS&S Holdings, Inc., a Delaware corporation
IS&S Aviation, Inc., a Delaware corporation




QuickLinks

SUBSIDIARIES OF THE REGISTRANT