• ACTRON Inc.

• Adra Electric Products

• Ameron International Corp.

• Associated Products Services Inc.

• Bender

• Big Beam Emergency Systems

• C.W. Cole & Co.

• Crescent Electric Supply Co.

• Crouse-Hinds Div.

• Douglas Steel Fabricating Corporation

• Duro-Test Lighting

• ECCO Electronic Controls Company

• Edwards Signals

• Faraday

• Federal Signal Corp/Electrical Products

• Flagpoles, Inc.

• Gold Coast Light

• H-B Instrument Co.

• Howard Industries, Inc.

• J W I

• John Portman & Associates

• LUMIRON

• Lake Shore Industries

• Ledalite Architectural Products Inc.

• McDermott: Julian A. McDermott Corp.

• Mule Lighting

• Natale Machine & Tool Co., Inc. (CIRCLE D LIGHTS)

• Niland Company

• OSRAM SYLVANIA INC.

• Pauluhn Electric Mfg. LLP

• Pelco Products

• Philips Lighting Co.

• Pittsburgh Manufacture & Installers

• Precision Multiple Controls

• Sparkle Plenty

• Spring City Electrical Mfg. Co.

• Stokes Electric Company

• TRI LIGHT INC.

• Territo Electric, Inc.

• Thomas & Betts Electrical

• Tork

• Tri-Guards

• Tristate & Electric & Electronics Supply Co.

• Trojan, Inc.

• Ushio America

• Visco

• Ward Industries

• Whelen Engineering Company, Inc.