• Douglas Steel Fabricating Corporation

• Dunn & Associates, P.A.

• Duro-Test Lighting

• ECCO Electronic Controls Company

• EMED Co.

• Eagle Bridge Machine & Tool, Inc.

• Edwards Signals

• Faraday

• Federal Signal Corp/Electrical Products

• Flagpoles, Inc.

• Geisler Roofing Inc.

• George Butler Associates, Inc.

• Global Industrial

• Gold Coast Light

• H-B Instrument Co.

• Hall Signs

• Howard Industries, Inc.

• INNERFACE SIGN SYSTEMS, INC.

• International Plastics Machinery Corp.

• Intersection Development Corp.

• J W I

• John Portman & Associates

• Kaltech Architectural Signage

• LUMIRON

• Lake Shore Industries

• Ledalite Architectural Products Inc.