| Business | Phone |
| Prima Technology 22122 20th Ave Se, Bothell 98021 | (425) 398-1678 |
| Primus Electronics Inc Bothell 98021 | (425) 487-6742 |
| Teltone Corp 21312 30th Dr Se 102, Bothell 98021 | (425) 487-1515 |
| Apex Datacomm Llc 19125 North Creek Pkwy 120, Bothell 98011 | (206) 521-8980 |
| Phone Works Bothell 98011 | (425) 483-6650 |