| Business | Phone |
| Aim Computers 1819 Willow Pass Rd, Concord 94520 | (925) 687-2822 |
| Bay Valley Repair 2344 Stanwell Cir, Concord 94520 | (925) 689-1722 |
| Entisys 1390 Willow Pass Rd # 540, Concord 94520 | (925) 688-8989 |
| Lasertron 2168 Solano Way, Concord 94520 | (925) 680-5456 |
| Mac Res Q 2280 Bates Ave # A, Concord 94520 | (925) 689-9488 |
| Pc2 Personal Computers 1130 Burnett Ave # D, Concord 94520 | (925) 677-5009 |
| Printer Pro 1647 Willow Pass Rd, Concord 94520 | (925) 685-6700 |
| Sandner's Reliable Business 1670 Challenge Dr, Concord 94520 | (925) 689-7642 |
| Allstar Laser Svc 2280 Diamond Blvd, Concord 94520 | (925) 521-0202 |
| C T Communications Concord 94520 | (925) 827-2031 |
| Complete Imaging Systems 1442 Rosal Ln, Concord 94521 | (925) 798-9320 |
| Computer Handyman 1045 Peralta Rd, Concord 94520 | (925) 680-5673 |
| Computrend 1433 El Dorado Ct, Concord 94518 | (925) 676-1577 |
| Custom Computer Solutions 3540 Clayton Rd, Concord 94519 | (925) 689-9054 |
| Eric's Computers 2038 Elm St, Concord 94519 | (925) 676-5644 |
| Friendly Internet Systems Po Box 21502, Concord 94521 | (925) 288-1349 |
| Laser Printing Svc Concord 94520 | (925) 689-1101 |
| Mariner Computers 4425 Treat Blvd # 141c, Concord 94521 | (925) 689-2697 |
| New Dimension Svc Solutions 1825 Sutter St # B, Concord 94520 | (925) 356-7984 |
| Next Level Networks 1870 Arnold Industrial Pl, Concord 94520 | (925) 671-5474 |
| P C Doctor 3354 Woodhaven Ln, Concord 94519 | (925) 681-0502 |
| Printer Pro 1130 Burnett Ave # D, Concord 94520 | (925) 685-6700 |
| Random Task Computer Svc 2280 Diamond Blvd, Concord 94520 | (925) 685-8269 |