| Business | Phone |
| Applied Environmental Control 45 Freight St # 1, Waterbury 6702 | (203) 756-8742 |
| Synagro Northeast Inc 111 Mattatuck Heights Rd, Waterbury 6705 | (203) 591-1858 |
| Synagro Technologies Inc 199 Municipal Rd, Waterbury 6708 | (203) 754-9337 |
| Phoenix Soil Inc 130 Freight St, Waterbury 6702 | (203) 757-4933 |
| Geo Methods Llc 36 Sheffield St, Waterbury 6704 | (203) 756-7007 |