| Business | Phone |
| Ashland Chemical Energy Svc 908 Town And Country Ln, Houston 77024 | (713) 490-0575 |
| Bucher Petrochemical Co 8955 Katy Fwy 300, Houston 77024 | (281) 920-9118 |
| Cam Chemical 20819 Essman Ln, Houston 77073 | (281) 821-4471 |
| Chasseur Wilshire 11999 Katy Fwy # 150m, Houston 77079 | (281) 531-4687 |
| Clarkson Shipping Svc Usa 1333 West Loop S 1525, Houston 77027 | (713) 235-7400 |
| Co Mac Chemical Inc Houston 77057 | (713) 785-1701 |
| Danamart Chemicals Usa Inc 2323 S Voss Rd, Houston 77057 | (832) 242-2188 |
| Dew Mag Chemicals Inc 1922 Round Lake Dr, Houston 77077 | (713) 688-8334 |
| Eljim Chemicals Co 1100 Nasa Rd 1, Houston 77058 | (281) 333-5971 |
| Merisol Usa Llc Chemical Plant 11821 East Fwy 600, Houston 77029 | (713) 428-5400 |
| Madison Chemical 6645 W Tidwell Rd, Houston 77092 | (713) 682-5791 |
| M & K Chemical Engineering 16511 Space Center Blvd, Houston 77058 | (281) 461-6113 |
| Holland Chemical Co 10831 Lasso Ln, Houston 77079 | (713) 468-5333 |
| L G Chemical 20445 State Highway 249, Houston 77070 | (281) 376-0963 |
| Houston Solvents & Chemical Co 10235 W Little York Rd # 350, Houston 77040 | (713) 675-5241 |
| Isgas 5641 Ransom St, Houston 77087 | (713) 645-5886 |
| Itochu Chemical America Inc 1300 Post Oak Blvd, Houston 77056 | (713) 871-9197 |
| Horizon Chemical Inc 8955 Katy Fwy # 215, Houston 77024 | (713) 984-9133 |