| Business | Phone |
| Computronix 1076 Horizon Dr # 16, Fairfield 94533 | (707) 427-1458 |
| Hytek Computer Solutions 2791 N Texas St # I, Fairfield 94533 | (707) 422-3347 |
| J C's Interactive Systems 2499 Martin Rd # B1, Fairfield 94534 | (707) 425-7100 |
| Npa West 780 Chadbourne Rd, Fairfield 94534 | (707) 421-1234 |
| R J Computers Fairfield 94534 | (707) 438-7440 |
| Star Computers Fairfield 94533 | (707) 428-1434 |
| Superior Technology Solutions 3225 Firestone Ct, Fairfield 94534 | (707) 428-6789 |