| Business | Phone |
| Barranca Resources 1010 Ridge Rd, Golden 80403 | (303) 278-1292 |
| Cullar Geologic Svc 65 Dory Cir, Golden 80403 | (303) 582-5957 |
| Drobeck Exploration & Dev Inc 17768 W 59th Pl, Golden 80403 | (303) 277-9072 |
| Fred Barnard Consulting Mining 1835 Alkire St, Golden 80401 | (303) 232-1553 |
| Mineral Systems Inc 5265 Mcintyre St, Golden 80403 | (303) 279-3136 |