| Business | Phone |
| Ashburn Industries Inc 2911 Rusk St, Houston 77003 | (713) 223-1607 |
| Arkema Inc 2231 Haden Rd, Houston 77015 | (713) 455-1211 |
| Converter Technology Inc 4400 Town Plaza Dr 105, Houston 77045 | (713) 726-0822 |
| Cook Composites & Polymers Co 2434 Holmes Rd, Houston 77051 | (713) 799-1800 |
| Eurecat Us Inc 1331 Gemini St 310, Houston 77058 | (281) 218-0669 |
| Engelhard Corp 1800 Saint James Pl 501, Houston 77056 | (713) 627-2161 |
| Miller & Lents Ltd 1100 Louisiana St 2700, Houston 77002 | (713) 651-9455 |
| Georgia Gulf Corp 2900 North Loop W 1200, Houston 77092 | (713) 956-3920 |
| A-1 Carbide-Kennametal Energy 11931 Wickchester Ln 201, Houston 77043 | (281) 531-4577 |
| Texas Brine Co Llc 3000 Feldman St, Houston 77045 | (713) 664-5711 |
| Texas Brine Co Llc 4800 San Felipe St, Houston 77056 | (713) 877-2700 |
| United Brine Pipeline Corp 4800 San Felipe St, Houston 77056 | (713) 877-1778 |
| Zeochem 3303 Fm 1960 Rd W 300, Houston 77068 | (281) 444-4457 |