| Business | Phone |
| Auto Row Parts 305 Airport Blvd, San Francisco 94080 | (650) 589-5453 |
| American Alloy Welding & Mach 1450 Donner Ave, San Francisco 94124 | (415) 822-8323 |
| General Engineering & Machine 135 Clara St, San Francisco 94107 | (415) 391-2255 |
| Grant Engineering & Machine Co 59 Columbia Sq, San Francisco 94103 | (415) 431-6094 |
| Jay Machine Shop 1053 Powell St, San Francisco 94108 | (415) 981-1888 |
| Mechinations 1062 Revere Ave, San Francisco 94124 | (415) 822-6388 |
| Metal & Motion 2245 Quesada Ave, San Francisco 94124 | (415) 821-4544 |
| Morgen Machine 1770 Yosemite Ave, San Francisco 94124 | (415) 822-1315 |
| Moss Machine 1398 Bryant St, San Francisco 94103 | (415) 865-1800 |
| P & I Machine Works 170 Mendell St, San Francisco 94124 | (415) 821-3230 |
| Production Specialties 2044 Bryant St, San Francisco 94110 | (415) 695-9117 |
| Richard M Weber Co 1810 Cesar Chavez, San Francisco 94124 | (415) 648-3300 |
| Standard Metal Products 558 Bryant St, San Francisco 94107 | (415) 546-6784 |