EXHIBIT 21        SUBSIDIARY CORPORATIONS OF CUBIC CORPORATION  PLACE OF INCORPORATION AND PERCENTAGE OWNED

|Subsidiary                                                                                                                                                                                  |  | Place of
Incorporation         |  | Percentage
Owned |  
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------ |  | ---------------- | -
|ADT GLOBAL SERVICES, INC.San Diego, California                                                                                                                                              |  | Delaware                       |  | 100%             |  
|APPLIED DATA TECHNOLOGY, INC.San Diego, California                                                                                                                                          |  | California                     |  | 100%             |  
|CONSOLIDATED CONVERTING CO.Whittier, California                                                                                                                                             |  | California                     |  | 100%             |  
|CUBIC APPLICATIONS, INC.Lacey, Washington                                                                                                                                                   |  | California                     |  | 100%             |  
|CUBIC COMMUNICATIONS, INC.San Diego, California                                                                                                                                             |  | California                     |  | 100%             |  
|CUBIC DATA SYSTEMS, INC.San Diego, California                                                                                                                                               |  | California                     |  | 90%              |  
|CUBIC DEFENSE SYSTEMS, INC.San Diego, California                                                                                                                                            |  | California                     |  | 100%             |  
|CUBIC FOREIGN SALES, INC.San Diego, California                                                                                                                                              |  | St. Thomas
U.S. Virgin Islands |  | 100%             |  
|CUBIC LAND, INC.San Diego, California                                                                                                                                                       |  | California                     |  | 100%             |  
|CUBIC MICROCHIP DEVELOPMENT CORPORATIONSan Diego, California                                                                                                                                |  | California                     |  | 100%             |  
|CUBIC TRANSPORTATION SYSTEMS, INC.San Diego, California                                                                                                                                     |  | California                     |  | 100%             |  
|CUBIC TRANSPORTATION SYSTEMS FAR EAST LIMITEDHong Kong, China                                                                                                                               |  | Hong Kong                      |  | 100%             |  
|CUBIC TRANSPORTATION SYSTEMS LIMITEDLondon, England
* (100% owned subsidiary of Cubic (UK) Limited)                                                                                         |  | England                        |  | 100%             | *
|CUBIC TRANSPORTATION SYSTEMS (AUSTRALIA) PTY LIMITEDNew South Wales, Australia
* (50% owned subsidiary of Cubic Corporation and
50% owned subsidiary of Cubic Transportation Systems, Inc.) |  | Australia                      |  | 100%             | *
|CUBIC (UK) LIMITEDLondon, England                                                                                                                                                           |  | England                        |  | 100%             |  
|CUBIC WORLDWIDE TECHNICAL SERVICES, INC.San Diego, California                                                                                                                               |  | Delaware                       |  | 100%             |  
|NAVSAT CORPORATIONSan Diego, California                                                                                                                                                     |  | California                     |  | 100%             |  
|OSCMAR INTERNATIONAL LIMITEDAuckland, New Zealand                                                                                                                                           |  | New Zealand                    |  | 100%             |  
|SCANPOINT TECHNOLOGY A/SBrondby, Denmark
* (100% owned subsidiary of Cubic Transportation Systems, Inc.)                                                                                    |  | Denmark                        |  | 100%             | *

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