| Business | Phone |
| Children's Hour Academy 14790 Boones Ferry Rd, Lake Oswego 97035 | (503) 635-2139 |
| Community Arts Pre-School 368 S State St, Lake Oswego 97034 | (503) 636-3429 |
| Westlake Montessori School 16106 Lake Forest Blvd, Lake Oswego 97035 | (503) 635-1493 |
| Village Montessori 4320 Douglas Way, Lake Oswego 97035 | (503) 675-8565 |
| South Shore Pre School 1855 Southshore Blvd, Lake Oswego 97034 | (503) 636-5216 |
| King's Children Preschool 4700 Lamont Way, Lake Oswego 97035 | (503) 636-8683 |
| Northwest Montessori Schools 2382 Glenmorrie Dr, Lake Oswego 97034 | (503) 697-4683 |