| Cedar Shake and Shingle Bureau -- International trade association offers consumer resources, technical guides, directory of suppliers and installers, and maintenance recommendations. |
| Elk Corporation -- Producers of premium laminated fiberglass shingles and fire-rated underlayment. |
| Hotshingle System -- Manufacturer of heated shingle system for ice dam protection. |
| Malarkey Roofing Company -- Residential and commercial roofing products. |
| Metal Roofing - Steel Shingles -- Manufacturer of interlocking metal shingles. |
| Michigan PreStain - Cedar Siding -- Manufactures pre-stained cedar siding, cedar shingles and vinyl-cement siding. |
| Silvercreek -- Manufacturers and exporters of premium roofing products made from western red cedar. British Columbia, Canada. |
| Teal Cedar -- Teal Cedar roofing shakes and cedar shingles, Western Red Cedar, fire retardant shingles, resawn shakes, fancy butts, and grooved shingles. |
| Zappone Copper and Aluminum Roofing Shingles -- Manufacturer of metal roofing shingles and bay window kits. |
