| Business | Phone |
| Architects Barrentine Bates 200 N State St, Lake Oswego 97034 | (503) 635-4425 |
| Benner Stange Assoc 5000 Meadows Rd # 430, Lake Oswego 97035 | (503) 670-0234 |
| Dmta Pc 2111 Summit Dr, Lake Oswego 97034 | (503) 515-1295 |
| Rich Farrington 415 N State St # 134, Lake Oswego 97034 | (503) 650-0210 |
| Gregg B Creighton Architects 252 A Ave # 100, Lake Oswego 97034 | (503) 635-0797 |
| Kibbey & Assoc 15800 Boones Ferry Rd # C103, Lake Oswego 97035 | (503) 699-6620 |
| Robert H Oshatz 12560 Elk Rock Rd, Lake Oswego 97034 | (503) 223-9258 |
| Randall Yamada 3291 Childs Rd, Lake Oswego 97034 | (503) 638-2524 |