• Hurd Windows and Doors

• Hy-Lite Block Windows

• IBP Glass Block Grid System

• IE; Blinds

• Industrial Acoustics Co.

• Infinity Plastics, Inc.

• Insulgard Corp.

• International Window Corp.

• J. Sussman, Inc.

• Jarrett, Inc.

• Jennifer's Glassworks

• Joyce Mfg. Co.

• Jurs Architectural Glass

• Just Glass Studio

• Just Plastics

• KEL-EEZ

• Kamps Design Group

• Kane Manufacturing Corp.

• Karavan Doors, Inc.

• Kasson & Keller, Inc.

• Kastner Metals / Embury

• Kentucky Wood Floors

• Kolbe & Kolbe Millwork Co.

• L.B. Plastics, Inc.

• LL Building Products

• Laminated Glass Corp.