| Business | Phone |
| Doobie-Doo Grease Exhaust Svc 7676 North Fwy 815, Houston 77037 | (281) 447-2240 |
| E & W Diversified Svc Po Box 710516, Houston 77271 | (713) 771-4447 |
| Ecoclean Inc 12800 Briar Forest Dr, Houston 77077 | (281) 589-8111 |
| Metro Grease 7703 Scanlock St, Houston 77012 | (713) 644-4750 |