| Business | Phone |
| American Assay Laboratories 1500 Glendale Ave, Sparks 89431 | (775) 356-0606 |
| Asbestos Tem Laboratories 1016 Greg St, Sparks 89431 | (775) 359-3377 |
| Ctc Analytical Svc 1375 Greg St 104, Sparks 89431 | (775) 358-3869 |
| Mc Clelland Laboratories Inc 1016 Greg St, Sparks 89431 | (775) 356-1300 |