| Business | Phone |
| Cjw Architecture 130 Portola Rd # A, Portola Valley 94028 | (650) 851-9335 |
| Hisata Design Plus Arch 118 Russell Ave, Portola Valley 94028 | (650) 851-2412 |
| Larick Alan Hill Inc 884 Portola Rd # A7, Portola Valley 94028 | (650) 529-9800 |
| Legal Architects 3282 Alpine Rd, Portola Valley 94028 | (650) 851-0091 |
| Paul L Bosman Architects 201 Erica Way, Portola Valley 94028 | (650) 948-0888 |
| F John Richards 178 Corte Madera Rd, Portola Valley 94028 | (650) 851-0663 |
| Lawrence Steiner 101 Pecora Way, Portola Valley 94028 | (650) 854-8524 |