| Business | Phone |
| A Answer America San Francisco 94104 | (415) 376-3402 |
| A Answering Royal Connection 440 Potrero Ave, San Francisco 94110 | (415) 864-0630 |
| A Automatic Answer San Francisco 94109 | (415) 354-8500 |
| Action Answering Svc San Francisco 94105 | (415) 227-0327 |
| Adelson's Voice Mail & Mail 760 Market St # 315, San Francisco 94102 | (415) 951-2494 |
| Answer Mti San Francisco 94104 | (415) 677-9171 |
| Answerite San Francisco 94104 | (415) 283-2270 |
| Bay Area Answering Svc San Francisco 94109 | (415) 946-0333 |
| Business Message Center 8038 Geary Blvd, San Francisco 94121 | (415) 386-0348 |
| Connections Communication Svc 387 Ivy St, San Francisco 94102 | (415) 431-4803 |
| Cotton Communications San Francisco 94110 | (415) 285-4451 |
| Direct Line Tele Response San Francisco 94105 | (415) 543-9696 |
| Doctors' Exchange 387 Ivy St, San Francisco 94102 | (415) 921-4747 |
| Novalert Critical Info Center 345 California St, San Francisco 94104 | (415) 434-7707 |
| Parnassus Heights Exchange 350 Parnassus Ave # 304a, San Francisco 94117 | (415) 665-6080 |
| Telecom Inc 965 Mission St # 110, San Francisco 94103 | (415) 243-3131 |