| Business | Phone |
| Frost Associates 416 Traverso Ave, Los Altos 94022 | (650) 941-7250 |
| Gbc Associates 4546 El Camino Real # 211, Los Altos 94022 | (650) 949-5444 |
| Heidmiller Group 747 Alvina Ct # 101, Los Altos 94024 | (650) 960-3933 |
| Recht Associates 2251 Grant Rd, Los Altos 94024 | (650) 964-6321 |