| Business | Phone |
| American Engine & Grinding Co 100 N Jackson St, Houston 77002 | (713) 224-5326 |
| Astec Carbides 6618 Heffernan St, Houston 77087 | (713) 643-6190 |
| Bayou City Pump Works Inc 8139 Tidwell Rd, Houston 77028 | (713) 631-6451 |
| Boring Specialties 14730 Yarberry St, Houston 77039 | (281) 449-0319 |
| C S & P Cryogenics 2134 Ojeman Rd, Houston 77080 | (713) 467-0869 |
| Coastal Casting Svc 2903 Gano St, Houston 77009 | (713) 223-4439 |
| Dreyco Mechanical Svc Inc 10250 La Porte Fwy, Houston 77017 | (713) 473-9147 |
| Fain's Machine 12778 Market Street Rd, Houston 77015 | (713) 453-5495 |
| Hunting Energy Svc Lp 1018 Rankin Rd, Houston 77073 | (281) 821-5577 |
| K-3 Machine Tool Co 717 E 21st St, Houston 77008 | (713) 869-4180 |
| Industrial Tool & Die Co Inc 5531 Mitchelldale St, Houston 77092 | (713) 688-0880 |
| KW International Oil & Gas Production Equipment 1223 Brittmoore Road, Houston 77043 | (713) 468-9581 |