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                                                                    Exhibit 21.1


                    SUBSIDIARIES OF DIGITALNET HOLDINGS, INC.

DigitalNet, Inc., a Delaware corporation

DigitalNet Government Solutions, L.L.C., a Delaware limited liability
corporation

Federal Systems Integration Corporation a wholly owned subsidiary of DigitalNet
Government Solutions, L.L.C. and a Virginia Corporation

Getronics Government Solutions Puerto Rico, Inc., a wholly owned subsidiary of
DigitalNet Government Solutions, L.L.C. and a corporation organized under the
laws of Puerto Rico

HFSI GmbH a wholly owned subsidiary of DigitalNet Government Solutions, L.L.C.
and a corporation organized under the laws of Germany

J.G. Van Dyke & Associates, Inc. a wholly owned subsidiary of DigitalNet
Government Solutions, L.L.C. and a Maryland corporation