| Business | Phone |
| Walthall Environmental 602 Lakeside Dr, Carlsbad 88220 | (505) 628-3949 |
| Stoller Sm Corp 314 W Mermod St, Carlsbad 88220 | (505) 662-7978 |
| Portage Southwest 201 N Canal St, Carlsbad 88220 | (505) 628-1462 |
| Mesa Field Svc 314 N Canyon St, Carlsbad 88220 | (505) 628-8885 |
| John Hart & Assoc 602 E Harkness Rd, Carlsbad 88220 | (505) 628-0865 |
| Environmental Monitoring Rsrch 1400 University Dr, Carlsbad 88220 | (505) 234-5511 |
| Del Hart 520 E Harkness Rd, Carlsbad 88220 | (505) 885-1532 |