| Business | Phone |
| Altary 1450 Enea Cir, Concord 94520 | (925) 685-7799 |
| Arcplan Inc 1850 Gateway Blvd # 260, Concord 94520 | (925) 825-6125 |
| D-Tools Inc 1850 Gateway Blvd, Concord 94520 | (925) 681-2326 |
| Fileworks Inc 1850 Gateway Blvd # 237, Concord 94520 | (925) 246-0300 |
| Helpusoft Corp 1470 Wharton Way, Concord 94521 | (925) 798-8410 |
| Pae Consulting 1210 Traud Dr, Concord 94518 | (925) 932-2649 |
| Software Progressions Corp 1850 Gateway Blvd, Concord 94520 | (925) 685-8586 |
| Software Unlimited 1000 Detroit Ave # W, Concord 94518 | (925) 825-5716 |