| Business | Phone |
| Add A Jack 2126 Ocean Street Ext, Santa Cruz 95060 | (831) 728-2562 |
| Add-A-Jack Santa Cruz 95060 | (831) 466-9762 |
| Enterprise Telcom 1440 Jose Ave, Santa Cruz 95062 | (831) 462-2200 |
| Peak Communications Po Box 8000, Santa Cruz 95061 | (831) 465-0222 |
| Professional Telephone Wiring 104 Mcmillan Ct, Santa Cruz 95060 | (831) 464-3917 |
| Smith Telecommunications 1255 Dougmar Dr, Santa Cruz 95062 | (831) 476-9758 |
| System Studies 21340 E Cliff Dr, Santa Cruz 95062 | (831) 475-5777 |