| Business | Phone |
| Acme Chemical Marketing 1100 N Post Oak Rd 320, Houston 77055 | (713) 874-1008 |
| Covanta Energy 15990 N Barkers Landing Rd, Houston 77079 | (281) 649-4800 |
| Applied Waste Solutions Inc 10674 Ivyridge Rd, Houston 77043 | (713) 975-6110 |
| Fluid Service Technologies 2911 Rusk St, Houston 77003 | (713) 236-0812 |
| Liquid Environmental Solutions 250 Gellhorn Dr, Houston 77013 | (281) 459-1122 |
| Myrick H Nugent 2123 Winrock Blvd, Houston 77057 | (713) 780-1030 |