• Metal Sales & Service, Inc. (Metalwerks)

• Michigan Ornamental Metals

• Milgo/Bufkin

• Monumental Construction & Moulding Co.

• Nelson Industrial

• Newcourt, Inc.

• Norfield Corp.

• Norton Industries

• Novawall Systems

• Nudo Products Inc.

• P.F.I.Inc-Paints For Industry

• Panel Solutions, Inc.

• Pittcon Industries

• Plastrglas

• Polymer Plastics Corp.

• SAS International

• Simplex Ceilings

• Steel Ceilings, Inc.

• Stretchwall Installations

• The Button Group, LLC

• The Gage Corporation International

• The UtilityWarehouse

• Thermal Design

• Unistrut Corp.

• Ventwood Div.

• WF Norman Corporation