| Business | Phone |
| American Petroleum Valve Co 1002 Kansas St, South Houston 77587 | (713) 910-4844 |
| Anthis Industries Inc 1116 Indiana St, South Houston 77587 | (713) 947-3393 |
| B & H Valve Co Inc 1210 Mississippi St, South Houston 77587 | (713) 941-7760 |
| Davis Valve Inc 1001 Michigan St, South Houston 77587 | (713) 944-6620 |
| M D Valve & Fittings Inc 1102 Indiana St, South Houston 77587 | (713) 943-2443 |
| Hi Alloys 704 Kansas St, South Houston 77587 | (713) 947-8973 |