exv21

Exhibit 21


		JURISDICTION OF
		INCORPORATION OR
COMPANIES		ORGANIZATION
UGS CORP.		Delaware, U.S.A.
UGS PLM Solutions Asia/Pacific Incorporated		Delaware, U.S.A.
UGS Japanese Holdings, Inc.		Delaware, U.S.A.
UGS European Holdings, Inc.		Delaware, U.S.A.
UGS Israeli Holdings, Inc.		Delaware, U.S.A.
UGS Italy Subholdings LLC		Delaware, U.S.A.
Unigraphics Solutions Holdings (UK) Limited		United Kingdom
UGS PLM Solutions (Australia) Pty. Ltd.		Australia
UGS PLM Solutions (Austria) GmbH		Austria
SDRC Belgium SA/NA*		Belgium
Unigraphics Solutions N.V. (99.9999%) `		Belgium
Unigraphics Solutions do Brasil Ltda. (99.99992133%)		Brazil
Unigraphics Solutions Canada Ltd.		Canada
Unigraphics Solutions Danmark A/S		Denmark
Unigraphics Solutions France SAS (99%)		France
Unigraphics Solutions (HK) Limited (99%)		Hong Kong
UGS India Private Limited (99.99999%)		India
PT Unigraphics Solutions Indonesia (1%)**		Indonesia
UGS PLM Korea Limited		South Korea
Unigraphics Solutions de Mexico S.A. de c.v. (99.99%)		Mexico
Unigraphics Solutions B.V.		Netherlands
Unigraphics Solutions Norge AS**		Norway
UGS Sp.z.o.o.		Poland
Limited Liability Company Unigraphics Solutions		Russia
Unigraphics Solutions Pte. Limited		Singapore
UGS PLM Solutions S.L.		Spain
UGS Svenska AB		Sweden
UGS PLM Solutions AG		Switzerland
Unigraphics Solutions (Thailand) Co., Ltd.*		Thailand
SDRC UK Limited*		United Kingdom
Variations Systems Analysis Ltd.*		United Kingdom
Engineering Animation UK Ltd.*		United Kingdom