| Business | Phone |
| Applied Design Laboratories 200 Litton Dr # 215, Grass Valley 95945 | (530) 272-8206 |
| Cedar Ridge Systems 15019 Rattlesnake Rd, Grass Valley 95945 | (530) 477-9015 |
| Conragan Systems Co 10727 Pekolee Dr, Grass Valley 95949 | (530) 274-9552 |
| Eclipse Co 12405 Beaver Dr, Grass Valley 95945 | (530) 477-1540 |
| Metanoia Technologies 127 Mill St, Grass Valley 95945 | (530) 273-4093 |
| Vuetech Po Box 2617, Grass Valley 95945 | (530) 477-2905 |