| Business | Phone |
| Precision Alarm 20630 56th Ave W 14, Lynnwood 98036 | (425) 697-2116 |
| Federal Firesafety Inc 19231 36th Ave W B200, Lynnwood 98036 | (425) 670-2724 |
| Absco Alarm Inc 19023 36th Ave W E, Lynnwood 98036 | (425) 771-1166 |
| Northwest Fire & Security Sys 16417 7th Pl W, Lynnwood 98037 | (425) 743-9516 |