Exhibit 21.1

Subsidiaries

Name	Jurisdiction of Incorporation	Percentage Ownership	Ownership
Air Industries Machining, Corp.	New York	100%	100%
Welding Metallurgy, Inc.*	New York	100%	100%
Nassau Tool Works, Inc.	New York	100%	100%
Decimal Industries, Inc.	New York	100%	100% *
Compac Development Corporation *	New York	**	100% *
Eur-Pac Corporation	Connecticut	100%	100%
Electronic Connection Corporation	Connecticut	100%	100%
The Sterling Engineering Corporation	Connecticut	100%	100%
Air Realty Group, LLC	Connecticut	100%	100%

* To be sold pursuant to a Stock Purchase Agreement dated March 21. 2018 with CPI Aerostructures, Inc. 

** Owned indirectly through Welding Metallurgy, Inc.