• DoorKing, Inc.

• AMERIPHONE

• AMP

• Alstom Canada Inc.

• Andersen Mfg

• Broan-NuTone Canada

• Broan-NuTone, LLC.

• Buildex, Inc.

• CORNELL Communications

• Catamount Corporation

• Dukane Corp.

• Executive Information Systems

• Federal Signal Corp/Electrical Products

• Globetron Electronics Corporation

• HM Electronics

• Howland Electric and Electronics Wholesale Company

• IMC Power

• Klockner Moeller Ltd.

• Lucent Technologies

• Meridian Technologies

• Popper: J.S. Popper

• Rauland-Borg Corp.

• Record/Play Tek

• Sage Technology Solutions, Inc.

• Simplex/Grinnell

• Sound Elevator Co./Entry Plus

• Southwest Microwave

• Superior Essex

• Telephonics Corp.

• Thomas & Betts Electrical

• Trane Company

• Vandal-Proof Products

• Zenitel USA