| Business | Phone |
| Brennan-Hamilton Co 90 S Spruce Ave # R, San Francisco 94080 | (323) 979-6007 |
| C H Bull Co 233 Utah Ave, San Francisco 94080 | (650) 837-8440 |
| Sierra Sales Po Box 1024, San Francisco 94083 | (650) 871-9119 |
| Bay Tool & Supply 1650 Evans Ave, San Francisco 94124 | (415) 920-2810 |