| Business | Phone |
| Team Industrial Svc Inc 2519 Southmore Blvd, Houston 77004 | (713) 472-3529 |
| Superheat Fgh Svc Inc 85 Oates Rd, Houston 77013 | (713) 674-9200 |
| Philip Technical Inc 5500 Cedar Crest St, Houston 77087 | (713) 640-1155 |
| Southwest Steel Trading Inc 501 N Greenwood St, Houston 77011 | (713) 921-7997 |
| Republic Heat Treat Inc 8902 N Main St, Houston 77022 | (713) 692-3410 |
| Sei Heat Treat 6910 Fulton St, Houston 77022 | (713) 699-3892 |
| Southwest Heat Treat Inc 1733 Lauder Rd, Houston 77039 | (281) 442-6694 |
| Specialty Heat Treat Inc 4660 Brittmoore Rd, Houston 77041 | (713) 937-3101 |
| V & M Star 8603 Sheldon Rd, Houston 77049 | (281) 456-0779 |
| Texas Steel Conversion Inc 3101 Holmes Rd, Houston 77051 | (713) 733-6013 |