Exhibit 21 EXISTING SUBSIDIARIES --------------------- The following table sets forth the name and jurisdiction of incorporation of the Registrant's subsidiaries. All subsidiaries are 100% owned except as noted.
Jurisdiction of Name of Subsidiary Incorporation - ------------------ ------------- UNITED STATES: Air Cargo Equipment Corporation Delaware Airspeed LLC North Carolina Ancor Products, Inc. California Applied Power Credit Corporation Nevada Applied Power International Ltd. Nevada Applied Power Investments II Inc. Nevada APW Enclosure Systems, Inc. Delaware APW Enclosure Systems, LLC Delaware APW Enclosure Systems, LP Delaware APW Investments, Inc. Nevada APW Tools and Supplies, Inc. Wisconsin Aspen Motion Technologies, Inc. North Carolina Barry Controls Corporation Delaware Barry Wright Corporation Massachusetts Calterm Taiwan, Inc. Nevada Cambridge Aeroflo, Inc. Massachusetts Columbus Manufacturing Company L.L.C. Wisconsin DCW Holding, Inc. Oklahoma Del City Wire, Inc. Oklahoma Eder Industries, Inc. Wisconsin Electronic Solutions Nevada HSP USA Inc. North Carolina Innovative Metal Fabrication California McLean Midwest Corporation Minnesota McLean West Inc. California Milwaukee Cylinder Company Wisconsin Mox-Med, Inc. Wisconsin New England Controls, Inc. Connecticut Nielsen Hardware Corporation Connecticut Precision Fabrication Technologies, Inc. Indiana Rubicon USA Inc. Delaware VERO Electronics Inc. New York Versa Technologies, Inc. Delaware WL International, Inc. Delaware Wright Line Inc. Massachusetts ZERO Corporation Delaware ZERO Enclosures, Inc. California ZERO International, Inc. California ZERO-East Division, ZERO Corporation Massachusets
OUTSIDE THE UNITED STATES:
AIC (Hong Kong) Ltd. (49%) Hong Kong Air Cargo Equipment United Kingdom AP International Corporation Barbados Applied Power Distribution GmbH Germany Applied Power Asia Pte, Ltd. Singapore Applied Power Australia Limited Australia Applied Power Canada Ltd. Ontario, Canada Applied Power do Brasil Equipamente Ltda. Brazil Applied Power Europa B.V. Netherlands Applied Power Europe S.A. France Applied Power Export Corp. U.S. Virgin Islands Applied Power (Far East) Ltd. Japan Applied Power Finance B.V. Netherlands Applied Power GmbH Germany Applied Power Holding GmbH Germany Applied Power Hytec (M) Sdn. Bhd. Malaysia Applied Power International, S.A. France Applied Power International, S.A. Switzerland Applied Power Italiana S.p.A. Italy Applied Power Japan Ltd. Japan Applied Power Korea Ltd. South Korea Applied Power Limited United Kingdom Applied Power (Mexico) S. de R.L. de C.V. Mexico Applied Power Moscow CIS Applied Power New Zealand Limited New Zealand APW Enclosures Ltd. Ireland APW Finance Limited United Kingdom APW Enclosure Products and Systems Limited (was APW Enclosures Limited) United Kingdom APW Enclosure Systems Holdings Limited (was APW Enclosure Systems Limited) United Kingdom APW Enclosure Systems Limited (Rubicon) United Kingdom Barry Controls GmbH Germany Barry Controls U.K. Ltd. United Kingdom C-Fab Manufacturing Ltd. Ireland C-Fab Developments Ltd. Ireland Danica Supply A/S Denmark Danica Supply UK Limited England Enerpac Asia Pte. Ltd. Singapore Enerpac Canada Ltd. Canada Enerpac Nederland B.V. Netherlands Enerpac Hydraulic Technology (India) Pte. Ltd. India Enerpac Ltd. United Kingdom Enerpac S.A. France Hormann Electronics Ltd. Ireland Norelem S.A. France Power-Packer do Brasil Ltd. Brazil Power-Packer Espana, S.A. Spain Power-Packer Europa B.V. Netherlands Power-Packer France S.A. France Productos Aereos, S.A. Mexico
Samuel Groves & Co. Limited United Kingdom Shanghai Blackhawk Machinery Co. Ltd. China VERO Electronics AB Sweden VERO Electronics GmbH Germany VERO Electronics Limited England VERO Electronics Overseas Investments Limited England VERO Electronics SA France VERO Electronics SrL Italy Wright Line Europe, B.V. Netherlands ZERO FSC Corp. U.S. Virgin Islands ZERO McLean Europe Ltd. United Kingdom