| Business | Phone |
| Independent Telephone Network 8741 Shirley Ave, Northridge 91324 | (818) 701-5100 |
| Kellatronics Telephone Systems 18401 Eddy St, Northridge 91325 | (818) 773-8888 |
| Fordable Comm & Computers Northridge 91324 | (818) 772-4244 |
| Icg 8707 Shirley Ave, Northridge 91324 | (818) 701-6383 |
| Star West Communications 19420 Marilla St, Northridge 91324 | (818) 993-0303 |
| R & A Financial Group Northridge 91324 | (818) 775-1460 |