| Business | Phone |
| Arch Chemicals Inc 960 Interstate 10 W, Westlake 70669 | (337) 430-4686 |
| Bio-Lab Inc 910 Interstate 10 W, Westlake 70669 | (337) 433-3030 |
| Geo Specialty Chemicals 3393 Bayou Dinde Pass, Westlake 70669 | (337) 708-0060 |
| Liquid Carbonic Industries 4451 Highway 108, Westlake 70669 | (337) 882-6609 |
| Lyondell Chemical Co 900 I 10 W, Westlake 70669 | (337) 491-3000 |
| Ppg Industries Inc 1300 P P G Dr, Westlake 70669 | (337) 708-4440 |