| Business | Phone |
| Aztec Manufacturing 7407 C E King Pkwy, Houston 77044 | (281) 458-1751 |
| Metalplate Galvanizing Lp 10625 Needham St, Houston 77013 | (713) 671-2454 |
| Mechanical Galvanizing 6222 Gessner Dr, Houston 77041 | (713) 462-1321 |
| Gti Engineering Inc 16810 Barker Springs Rd 218, Houston 77084 | (281) 398-0004 |
| North American Galvanizing Co 9103 Fairbanks N Houston Rd, Houston 77064 | (832) 467-3772 |