| Business | Phone |
| Hohbach Lewin Inc 260 Sheridan Ave # 150, Palo Alto 94306 | (650) 617-5930 |
| Charles F Uhrhammer 651 Cowper St, Palo Alto 94301 | (650) 326-6038 |
| Charles E Philips 3408 Cork Oak Way, Palo Alto 94303 | (650) 494-0131 |
| Rinne & Peterson Structural 1121 San Antonio Rd # C200, Palo Alto 94303 | (650) 428-2860 |
| Umerani Associates 4020 Fabian Way # 302, Palo Alto 94303 | (650) 494-1600 |