| Business | Phone |
| Cascade Security Div 838 106th Ave Ne, Bellevue 98004 | (206) 852-8666 |
| Central Security Alarm 11023 Ne 8th St, Bellevue 98004 | (425) 462-9763 |
| Dictograph Northwest 12841 Ne 14th Pl, Bellevue 98005 | (425) 451-8517 |
| Essi 2018 156th Ave Ne, Bellevue 98007 | (425) 748-5004 |
| Group One Northwest Inc 12031 Northup Way 100, Bellevue 98005 | (425) 454-9900 |
| Focus Micro Bellevue 98007 | (425) 747-9911 |