| Business | Phone |
| B W Construction 110 Russell Ave, Portola Valley 94028 | (650) 851-1071 |
| Built Form Design 127 Ramona Rd, Portola Valley 94028 | (650) 851-8436 |
| Eric J Lefholz Co 10 Ciervos St, Portola Valley 94028 | (650) 328-7271 |
| Hunner Associates 1247 Los Trancos Rd, Portola Valley 94028 | (650) 851-8500 |
| Lewcon Builders Inc 195 Willowbrook Dr, Portola Valley 94028 | (650) 529-9110 |
| Portola Valley Ranch Portola Valley 94028 | (650) 851-8676 |
| Staprans Design 159 Ramona Rd, Portola Valley 94028 | (650) 851-8436 |
| Stritter Construction Inc 1235 Los Trancos Rd, Portola Valley 94028 | (650) 851-8253 |
| Thurlow Building 1144 Los Trancos Rd, Portola Valley 94028 | (650) 851-1010 |