| Business | Phone |
| Mantis Drafting Svc San Francisco 94080 | (650) 583-2108 |
| Baycad 566 Fell St # 4, San Francisco 94102 | (415) 786-1715 |
| California Home Plans Inc San Francisco 94116 | (415) 336-3255 |
| Equitox 30 Teddy Ave, San Francisco 94134 | (650) 952-7006 |
| Mechanical Drafting Svc 211 Granville Way, San Francisco 94127 | (415) 665-5777 |
| San Francisco Cad 592 43rd Ave, San Francisco 94121 | (415) 751-1368 |
| Sudhausen Cad Svc 54 Pier, San Francisco 94158 | (415) 543-7864 |