| Business | Phone |
| Chemquip Inc 4823 Allum Rd, Houston 77045 | (713) 995-8145 |
| Diversified Chemical & Supply 8205 Kempwood Dr, Houston 77055 | (713) 461-9610 |
| Edlon Inc 8907 Wallington Dr, Houston 77096 | (713) 667-1359 |
| Engineered Processes Inc 17111 Rolling Creek Dr 105, Houston 77090 | (281) 440-3662 |
| Koch Extraction Technologies 6611 Killough St, Houston 77086 | (281) 999-0991 |
| Intersales Process Equipment 11246 S Post Oak Rd 301, Houston 77035 | (713) 729-6500 |