| Business | Phone |
| Clear Stream Environmental 22811 Industry Ln, Tomball 77375 | (281) 351-1633 |
| Coastal Environmental Svc 15714 Downford Dr, Tomball 77377 | (281) 447-8600 |
| Compliance Solutions Inc 1431 Graham Dr 217, Tomball 77375 | (281) 357-5577 |
| E Vironment 14011 Park Dr 100, Tomball 77377 | (281) 351-2856 |
| Efficasey Environmental Llc 506 N Pine St, Tomball 77375 | (281) 351-9441 |
| Hartwell Environmental Corp 22115 Hufsmith Kohrville Rd, Tomball 77375 | (281) 351-8501 |