| Business | Phone |
| Jackson-Dawson Communications 375 Van Ness Ave # 1104, Torrance 90501 | (310) 618-0900 |
| Ripple Training 20804 Annrita Ave, Torrance 90503 | (310) 901-4516 |
| Technology Training Corp 3420 Kashiwa St, Torrance 90505 | (310) 534-0894 |
| Western Resident Training 22750 Hawthorne Blvd # 2, Torrance 90505 | (310) 378-5424 |