| Business | Phone |
| Bitblitz Communications 461 S Milpitas Blvd, Milpitas 95035 | (408) 597-8200 |
| Amity Systems Inc 888 Tasman Dr, Milpitas 95035 | (408) 456-6900 |
| Lite-On Communications Inc 726 S Hillview Dr, Milpitas 95035 | (408) 945-4224 |
| Octel Communications Corp 1011 Mccarthy Blvd, Milpitas 95035 | (408) 324-3500 |
| Paigehomillis Communication 950 S Main St, Milpitas 95035 | (408) 934-9670 |
| Real Communications Inc 1900 Mccarthy Blvd, Milpitas 95035 | (408) 943-6662 |
| Real Time Communications 504 Valley Way, Milpitas 95035 | (408) 945-1100 |
| Realm Communications Group 840 Yosemite Way, Milpitas 95035 | (408) 944-9090 |
| Science Communicator 1423 Traughber St, Milpitas 95035 | (408) 956-1245 |
| Spreadaloha Communications 1389 Kennedy Dr, Milpitas 95035 | (408) 956-0983 |