- Anagnostaras Bros S.A.
 - Producers of clay bricks and roofing tiles. - Cuneo Angiolino & C.
- Producer of slates for roofing, building, and more.
- Evergreen Slate Company
- Producer and supplier of roofing slate.
- Golden Clay Industries
- Manufactures clay roofing tiles.
- IMERYS Roof Tiles
- Manufactures clay roof tiles and exports them worldwide.
- Industrie Laterizi Riunite S.p.A.
- Brick and roof tile manufacturer.
- Kia Lim
- Manufacturer and international exporter of clay roof tiles, facing bricks, block bricks, and landscaping pavers.
- MonierLifetile
- Manufactures concrete and slate roofing tiles as well as wood shake shingles.
- New England Slate Company, The
- Roofing slate for repairs, restorations, and new construction. Also offers tools, copper nails, and books and videos.
- Newport Fastener Company, Inc.
- Manufacturers of roof tile fastening systems, including Tyle-Tye and Riness wire tie systems.
- Polet IGK
- Manufacturers of ceramic floor and roof tile and clay block tiles for building construction and tennis courts.
- Roser Roofing, Inc.
- Manufacturer of light-weight, stone-coated roofing.
- Saint-Gobain Terreal
- Manufacturer and international exporter of clay wall claddings and roof tiles.
- Seca Co.
- Offers slate for roofing, flooring, and other uses.
 Slateproducts.com
- Roofing suppliers specialising in reclaimed slate, welsh slate, blue slate, Chinese slate, Windsor slate, and natural roofing slate.- Structural Slate Company
- Standard products consist of flooring, roofing, fireplace facings, mantels and hearths, as well as architectural products.
- Titan Mfg. Roof Systems
- Offers barrel tile (Spanish or Double Roman), shake tile, and slate tile made from the finest composite materials for an environmentally conscious roofing alternative.
- U.S. Tile Company
- Manufacturing clay roofing tiles.
- Vermont Natural Stoneworks
- Offers slate products, floor tile, and stone for entryways, flooring, patios, walkways, and boot and plant mats.
- Vermont Structural Slate Company, Inc.
- Quarriers and fabricators of Vermont slate, quartzite, and other stones. Producers of roofing, flooring, countertops, wall cladding, fireplace surrounds, and other home and building products.
- Virginia Slate
- Offers slate products, including roofing, flagstone, and crushed rock.
- Wire Works
- Manufactures holding devices for tile roofs as well as tile fastening systems.
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