| Business | Phone |
| Harbison Walker Refractories 4620 Woodland Dr, Evansville 47720 | (812) 425-2586 |
| Tri State Refractories 1127 E Virginia St, Evansville 47711 | (812) 425-3466 |
| Rtw Industrial Maintenance 3155 Broadway Ave, Evansville 47712 | (812) 468-4299 |
| Kessler Fire Brick Co 2345 Lexington Rd, Evansville 47720 | (812) 424-5461 |