EXHIBIT 21 PARENT: INFOCROSSING, INC., formerly Computer Outsourcing Services, Inc. WHOLLY-OWNED SUBSIDIARIES OF INFOCROSSING, INC.: Infocrossing EAS, Inc., formerly ETG, Inc., a Delaware corporation Infocrossing Services, Inc., a Delaware corporation Infocrossing Southeast, Inc., formerly AmQUEST, Inc., a Georgia corporation Infocrossing West, Inc., formerly ITO Acquisition Corp, a California corporation Infocrossing Healthcare Services, Inc., formerly Verizon Information Technologies, Inc. a Delaware corporation (i)Structure, LLC, a Delaware limited liability company. WHOLLY-OWNED SUBSIDIARY OF INFOCROSSING SOUTHEAST, INC. Infocrossing Services Southeast, Inc, formerly AmQUEST Services, Inc., a Georgia corporation WHOLLY-OWNED SUBSIDIARY OF INFOCROSSING WEST, INC. Infocrossing Services West, Inc., a California corporation