| Business | Phone |
| Cal Tech Designs 13899 Mono Way, Sonora 95370 | (209) 536-1522 |
| Hub 3 Networks 181 S Washington St, Sonora 95370 | (209) 588-2997 |
| Mother Lode Internet 301 S Shepherd St, Sonora 95370 | (209) 536-5800 |
| Net Ease-Microweb Sonora 95370 | (209) 694-8932 |
| Omnivision Satellite Systems 13689 Mono Way, Sonora 95370 | (209) 533-3474 |
| Sierra Com 104 W Stockton St, Sonora 95370 | (209) 694-8300 |
| Sonnet Networking 231 Hospital Rd, Sonora 95370 | (209) 532-4111 |