| Business | Phone |
| Elume 960 Enchanted Way # 110, Simi Valley 93065 | (805) 526-2300 |
| Fermionics Corp 4555 Runway St, Simi Valley 93063 | (805) 582-0155 |
| Micron Instruments 4509 Runway St, Simi Valley 93063 | (805) 522-4676 |
| Microwave Monolithics Inc 2263 Ward Ave, Simi Valley 93065 | (805) 584-6642 |
| Ricoh Printing Systems America 2635 Park Center Dr # A, Simi Valley 93065 | (805) 578-4000 |
| Zygo Corp 58 Moreland Rd, Simi Valley 93065 | (805) 582-2020 |