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EXHIBIT 21.1

List of Subsidiaries

Subsidiary Name
  Jurisdiction of
Organization
  Type of Entity

Bejing Wanfeng United Wireless Technology Consulting Co. (d/b/a WFI China)

  China   Corporation

Dakota Merger Sub, Inc. 

  Delaware   Corporation

Defense Systems, Incorporated

  Virginia   Corporation

DTI Associates, Inc. 

  Virginia   Corporation

EyeVelocity, Inc. 

  Washington   Corporation

Haverstick Consulting, Inc. 

  Indiana   Corporation

Haverstick Government Solutions, Inc. 

  Ohio   Corporation

HGS Holdings, Inc. 

  Indiana   Corporation

JMA Associates, Inc (d/b/a TLA Associates)

  Delaware   Corporation

Kratos Commercial Solutions, Inc. 

  Delaware   Corporation

Kratos Government Solutions, Inc. 

  Delaware   Corporation

Kratos Mid-Atlantic, Inc. 

  Delaware   Corporation

Kratos Southeast, Inc. 

  Georgia   Corporation

Kratos Southwest L.P. 

  Texas   Limited Partnership

Kratos Texas, Inc. 

  Texas   Corporation

Madison Research Corporation

  Alabama   Corporation

Posinet, Inc. 

  Delaware   Corporation

Rocket Support Services, LLC

  Indiana   Limited Liability Company

WFI India Private Limited

  India   Corporation

WFI NMC Corp. 

  Delaware   Corporation

WFI Uruguay S.A. 

  Uruguay   Corporation

Wireless Facilities International Hong Kong Limited

  Hong Kong   Corporation

Wireless Facilities International Singapore PTE LTD. 

  Singapore   Corporation

Wireless Facilities International, Spain S.L. 

  Spain   Corporation

Wireless Facilities, Inc./Entel

  Delaware   Corporation



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