• Allied Easley Corp.

• Armstrong World Ind Canada Ltd

• Armstrong World Industries

• Bailey Metal Products Ltd.

• C G C Interiors Division OF C G C Inc.

• CGC Inc

• CGI International

• CertainTeed

• Chicago Metallic Corporation

• Crane Composites, Inc.

• Dewalt Industrial Power Tools Co.

• Gordon Inc.

• Gresham, Smith and Partners

• Hunter Douglas Contract - Ceilings

• Illbruck Architectural Products

• Interfinish

• K-Lath

• Leek Building Products

• Mero Structures

• Northern States Metals

• Simplex Ceilings