| Business | Phone |
| Above Board Electronics Inc Roseville 95661 | (916) 781-6476 |
| Electronic Processing 510 Oak St, Roseville 95678 | (916) 781-7070 |
| Force Electronics 2267 Lava Ridge Ct, Roseville 95661 | (916) 797-3115 |
| Precision Electronics Roseville 95661 | (916) 784-1997 |