| Business | Phone |
| Walter B Satterthwaite Assoc 720 Old Fern Hill Rd, West Chester 19380 | (610) 692-5770 |
| Westchester Environmental Inc 307 N Walnut St, West Chester 19380 | (610) 431-7545 |
| Aquaterra Technologies 122 S Church St, West Chester 19382 | (610) 431-5733 |
| E Phase Po Box 44, West Chester 19381 | (610) 692-7007 |
| Ecor Solutions Inc 508 Brandywine Pkwy, West Chester 19380 | (610) 431-8731 |
| Environmental Science & Rmdtn 105 E Evans St # A, West Chester 19380 | (610) 692-6200 |
| Fleet Environmental Svc 898 Fernhill Rd, West Chester 19380 | (610) 436-7540 |
| M W Environmental Svc Inc 306 Westtown Rd # F, West Chester 19382 | (610) 431-9430 |
| Inspection Mgmt Relocation Svc 834 W Chester Pike, West Chester 19382 | (610) 692-4122 |
| Jd2 Environmental Inc 882 S Matlack St, West Chester 19382 | (610) 430-8151 |
| L J Herbert Environmental West Chester 19382 | (610) 399-0919 |