• Aluminum Industries Inc.

• American Shelter Technologies

• Astrazinc Building Systems

• Atlas Fence Company, Inc.

• B & M Manufacturing Inc.

• Barrett Company

• Beach Sheet Metal Co., Inc.

• BendTek, Inc.

• Berger Brothers Company

• Bethlehem Steel Corporation

• Bramec Corp.

• Bray Sheet Metal Co.

• Butler Manufacturing

• Capital City Sheet Metal

• Coated Metal Products

• Company 2001, Inc.

• Copper Development Association Inc.

• CopperCraft

• Cordeck

• Corrugated Industries

• Creative Metal Industries Inc.

• Curveline, Inc.

• Custom-Bilt Metals

• E.H. Gustafson & Co.

• Eclipse America

• Exterior Technologies Group, Inc.