| Business | Phone |
| Eaton Cutler-Hammer 5000 Meadows Rd, Lake Oswego 97035 | (503) 624-4000 |
| Electrical Equipment 3 Britten Ct, Lake Oswego 97035 | (503) 699-8963 |
| Square D 15844 Upper Boones Ferry Rd, Lake Oswego 97035 | (503) 598-9844 |
| Reach Technology Inc 155 B Ave # 200, Lake Oswego 97034 | (503) 675-6464 |
| Monster Fuses Lake Oswego 97035 | (503) 699-8963 |