EXHIBIT 21.1

SUBSIDIARY CORPORATIONS OF CUBIC CORPORATION

PLACE OF INCORPORATION AND PERCENTAGE OWNED

	Place of	Percentage
Subsidiary	Incorporation	Owned
CTS — NORDIC AKTIEBOLAG	Sweden	100	%
CUBIC (UK) LIMITED	United Kingdom	100	%
CUBIC DE MEXICO, S.A de C.V.	Mexico	100	%
CUBIC DEFENCE AUSTRALIA PTY LIMITED	Australia	100	%
CUBIC DEFENCE NEW ZEALAND LIMITED	New Zealand	100	%
CUBIC DEFENCE UK LTD	United Kingdom	100	%
CUBIC DEFENSE APPLICATIONS, INC.	California	100	%
CUBIC DEFENSE WLL	Qatar	49	%
CUBIC DEFENSE DOHA FOR TRADING AND CONTRACTING WLL	Qatar	49	%
CUBIC FIELD SERVICES CANADA LIMITED	Canada	100	%
CUBIC HOLDINGS LTD.	New Zealand	100	%
CUBIC ITALIA S.R.L.	Italy	100	%
CUBIC ITS, INC.	Texas	100	%
CUBIC SURFACE TRANSPORTATION SYSTEMS LIMITED	United Kingdom	100	%
CUBIC TECHNOLOGIES DENMARK APS	Denmark	100	%
CUBIC TECHNOLOGIES SINGAPORE PTE LTD	Singapore	100	%
CUBIC TRANSPORTATION SYSTEMS (AUSTRALIA) PTY LIMITED	Australia	100	%
CUBIC TRANSPORTATION SYSTEMS (DEUTSCHLAND) GmbH	Germany	100	%
CUBIC TRANSPORTATION SYSTEMS (INDIA) PVT LIMITED	India	100	%
CUBIC TRANSPORTATION SYSTEMS CANADA, LTD	Canada	100	%
CUBIC TRANSPORTATION SYSTEMS LIMITED	United Kingdom	100	%
CUBIC TRANSPORTATION SYSTEMS, INC.	California	100	%
EMIRATES TRAINING TECHNOLOGY LLC	UAE	49	%
GATR TECHNOLOGIES, INC.	Alabama	100	%

	Place of	Percentage
Subsidiary	Incorporation	Owned
GRIDSMART TECHNOLOGIES, INC.	Delaware	100	%
ISR SYSTEMS, INC.	Delaware	100	%
NUVOTRONICS, INC.	Delaware	100	%