| Business | Phone |
| International Tile & Marble Co Capitol Heights 20743 | (301) 336-8045 |
| Arc Stone Inc 9020 Edgeworth Dr, Capitol Heights 20743 | (301) 499-2100 |
| Smoaks Marble & Tile 305 Ritchie Rd, Capitol Heights 20743 | (301) 333-5530 |
| Standard Tile & Marble Co 520 Hampton Park Blvd, Capitol Heights 20743 | (301) 350-1300 |
| Boatman & Magnani Inc 600 Ritchie Rd, Capitol Heights 20743 | (301) 336-7700 |