| Business | Phone |
| John Ou & Assoc 1813 Oak Knoll Dr, Belmont 94002 | (650) 592-7181 |
| Morris Engineering 1301 Shoreway Rd # 107, Belmont 94002 | (650) 595-2973 |
| Oak Engineering 915 Ralston Ave # B, Belmont 94002 | (650) 595-4199 |
| John S Quan Pe 845 Old County Rd, Belmont 94002 | (650) 591-8609 |