| Business | Phone |
| Engelhard Corp 10001 Chemical Rd, Seabrook 77586 | (281) 474-3241 |
| Los Angeles Chemical Co 9800 Fairmont Pkwy, Seabrook 77586 | (281) 474-5400 |
| Houston Chemical Svc Inc 12901 Bay Park, Seabrook 77586 | (281) 474-2690 |
| Intertek Testing Svc 11727 Port Rd, Seabrook 77586 | (281) 291-9889 |