- Ahmedabad Steelcraft
 - Manufactures sections and profiles for steel doors, windows, and ventilators. - Veka Incorporated
- Extruders of quality vinyl window and door systems.
- W. Hartmann & Co. (GmbH & Co.)
- Manufactures aluminium profile systems for windows, doors, and facades. In English and German.
- Allmetal, Inc.
- Manufactures laser-welded air spacer and decorative components for the insulated glass, window, and door market.
- Creative Millwork
- Manufactures removable wood window and door grilles.
- Sierra Lumber Manufacturers
- Manufacturers of materials for the wood door and window industries. Specialises in cutstock, fingerjoint and production of core panels.
- Window Restore
- Sells replacement Hurd window and patio door parts, accessories, and factory paint.
- DPW Te Paske bv
- Supplying wood products to the door industry.
- Concept Frames Inc.
- Building custom-made hollow metal frames for a range of commercial and industrial applications.
- PRYSM Marketing
- Markets components and equipment for window, door and insulated glass manufacturers.
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