| Business | Phone |
| Cameo Fabricators Inc 13835 Chrisman Rd, Houston 77039 | (281) 449-6207 |
| Esg Energy Svc Group 10200 Bellaire Blvd, Houston 77072 | (281) 575-4033 |
| Federal Flange 4014 Pinemont Dr, Houston 77018 | (713) 681-0606 |
| Metalloy Inc 5800 Heiser St, Houston 77087 | (713) 643-2660 |
| Mach Industrial Group 6119 Fulton St, Houston 77022 | (713) 695-6000 |
| L B Foster Co 6500 Langfield Rd, Houston 77092 | (713) 462-6161 |
| Industrial Pipe Fitters Inc 6020 Osborn St, Houston 77033 | (713) 645-2670 |
| Natco Machine & Welding Co 8923 Manus St, Houston 77093 | (713) 691-3781 |
| Tri Tool Inc 3500 S Richey St 380, Houston 77017 | (713) 944-5910 |
| Worldwide Pipe & Supply Co Inc 3500 S Richey St 220, Houston 77017 | (713) 941-4119 |
| Houston Tubulars Inc 10497 Town And Country Way, Houston 77024 | (713) 465-6334 |
| X L Systems 10000 Memorial Dr, Houston 77024 | (713) 682-3399 |
| Osies Inc 11875 W Little York Rd 103, Houston 77041 | (713) 849-5131 |
| Total Pipe Svc Inc 9015 Sheldon Rd, Houston 77049 | (281) 456-9821 |
| Texas Pipe & Supply 2340 Holmes Rd, Houston 77051 | (713) 799-5700 |
| Tube-Tec Bending 2906 Holmes Rd, Houston 77051 | (713) 264-0821 |
| Ameron Fiberglass-Composite 9720 Cypresswood Dr 325, Houston 77070 | (832) 912-8282 |
| Shaw Fabricators 7705 Hall Rd, Houston 77075 | (713) 991-5510 |
| Stone & Webster Inc 1430 Enclave Pkwy, Houston 77077 | (281) 368-4000 |
| Victaulic Co Of America 7177 Railspur St, Houston 77078 | (713) 635-4587 |
| Wfi Intl Inc 4407 Haygood St, Houston 77022 | (281) 765-3200 |
| Reed-Young Co Inc 5301 Polk St 18a, Houston 77023 | (713) 921-7300 |
| Tenaris 2200 West Loop S 800, Houston 77027 | (713) 767-4400 |
| Tubular Services Inc 1010 Mccarty St, Houston 77029 | (713) 675-6212 |
| Rilco Manufacturing Co 11435 Brittmoore Park Dr, Houston 77041 | (713) 466-4777 |
| T S Upset & Thread 18702 E Hardy Rd, Houston 77073 | (281) 209-9300 |
| Vam Premium Threading Svc 19210 E Hardy Rd, Houston 77073 | (281) 821-5510 |