Exhibit 21.1 APW Ltd. Eder Industries, Inc. Wisconsin APW North America Inc. Delaware Cambridge Aeroflo, Inc. Massachusetts Electronic Solutions Nevada Metal Arts Mfg., Inc. California McLean West Inc. California McLean Midwest Corporation Minnesota Zero-East Division / Zero Corp. Massachusetts APW Enclosure Systems, Inc. Delaware Applied Power Credit Corp. Nevada Aspen Motion Technologies Inc. North Carolina Precision Fabrication Technologies Inc. Indiana APW - Erie, Inc. Pennsylvania APW Enclosure Systems Holdings, Inc. Delaware APW Enclosure Systems, LP Delaware APW Wright Line LLC Delaware APW Mayville Ltd. Barbados APW Mayville LLC Delaware Wright Line Europe BV Netherlands Towerflame Ltd. UK Air Cargo Equipment (UK) Ltd. UK APW do Brasil Ltd. Brazil APW Enclosures Ltd. (CFAB) Ireland APW Enclosures (Dublin) Ltd. Ireland Hoermann Electronics Ltd. Ireland APW Products and Systems Holding BV Netherlands APW Products and Systems BV Netherlands APW Encl. Products and Systems Ltd. UK APW Encl. Systems Holding Ltd. UK APW Enclosure Systems plc UK High Speed Production (Holdings) Ltd. UK APW Enclosure Systems (UK) Ltd. UK APW Investments UK Ltd. UK APW Holdings (Europe) Ltd. UK APW Netherlands BV Netherlands APW Galway Ltd. Ireland Rubicon Finance Ireland Ireland Rubicon Finance Ltd. UK APW Holdings (UK) Ltd. UK Applied Power Ltd. UK APW Electronics Group plc UK APW Electronics Ltd. UK Wright Line Ltd. UK APW New Forest Ltd. UK APW Electronics Overseas Investments Ltd. UK APW Shanghai Ltd. China APW (Singapore) Pte Ltd. Singapore APW Electronics GmbH Germany APW Enclosures S.A. France APW Electronics SrL Italy APW Power Supplies AS Denmark APW Holding B.V. Netherlands APW Finance Ltd. (Dutch resident) UK Cipresmad Consultores E Services Ltda. Madiera Portugal Cipresmad Hungary Financing LLC Hungary APW Japan Ltd. Japan