| Business | Phone |
| Advanced Micro Svc Inc 3677 Royal Ave, Simi Valley 93063 | (805) 581-6331 |
| Basement Boys Systems & Sftwr 2719 Reservoir Dr, Simi Valley 93065 | (805) 520-3395 |
| Bottomline Accounting Systems 255 E Easy St, Simi Valley 93065 | (805) 990-7700 |
| Copware Software Inc 4565 Industrial St # B, Simi Valley 93063 | (805) 955-0436 |
| Data Connections 1667 Royal Ave, Simi Valley 93065 | (805) 527-7362 |
| Kelly Data Systems 256 Aristotle St, Simi Valley 93065 | (805) 583-1579 |
| Number 5 Software 2045 Royal Ave # 126, Simi Valley 93065 | (805) 522-9906 |
| Peachtree Support Center 3126 Texas Ave, Simi Valley 93063 | (805) 522-6073 |
| Peachtree Support Center 4505 Industrial St # 2g, Simi Valley 93063 | (805) 522-6065 |
| Pixel Mechanix Software 956 Crown Hill Dr, Simi Valley 93063 | (805) 526-9768 |
| R & D Performance Group 1180 Patricia Ave # 102, Simi Valley 93065 | (805) 520-4170 |
| Rapattoni Corp 98 W Cochran St, Simi Valley 93065 | (805) 520-9755 |
| Southwest Data Systems Simi Valley 93065 | (805) 579-8998 |
| Veritas Software 1445 E Los Angeles Ave, Simi Valley 93065 | (805) 523-7973 |