| Business | Phone |
| Air Resources Group 596 New Loudon Rd, Latham 12110 | (518) 786-9768 |
| Hydro Geologic 33 Century Hill Dr, Latham 12110 | (518) 782-3435 |
| Onyx Environmental Inc 10 Terminal Dr, Latham 12110 | (518) 218-0246 |
| Sterling Enivronmental Engr 24 Wade Rd, Latham 12110 | (518) 456-4900 |