| Company Name | Street | Suite | City | St | Zip | Phone | Fax | Website |
| Fire One Inc | 107 Washington Blvd | Auburn | WA | 98001 | (206) 575-0311 | (253) 872-7590 | www.fire-one.org | |
| Dictograph Northwest | 12841 NE 14th Pl | Bellevue | WA | 98005 | (425) 451-8517 | (425) 451-9455 | ||
| Metro Link Security Integration Inc | 914 164th St SE | Ste 450 | Mill Creek | WA | 98012 | (888) 638-7697 | www.metrolinknw.com | |
| Detection Logic Fire Protection Inc | 21312 30th Dr SE | Ste 103 | Bothell | WA | 98021 | (425) 486-2600 | (425) 486-2611 | www.detectionlogic.com |
| Protection One Alarm Monitoring Inc | 7617 S 180th St | Kent | WA | 98032 | (425) 656-7140 | (425) 656-7145 | www.protectionone.com | |
| Allied Fire and Security | 3051 E Valley Rd | Renton | WA | 98057 | (425) 988-6477 | (425) 988-6501 | www.alliedfireandsecurity.com | |
| Cosco Fire Protection Inc | 15000 Woodinville-Redmond Rd | Ste B-800 | Woodinville | WA | 98072 | (425) 485-0432 | (425) 670-2675 | |
| Washington Alarm Inc | 1253 S Jackson St | Seattle | WA | 98144 | (206) 328-3288 | www.washingtonalarm.com | ||
| Pacific Fire & Security Inc | 828 Poplar Pl S | Seattle | WA | 98144 | (206) 957-0907 | www.pacificfiresecurity.com | ||
| Froula Alarm Systems Inc | 861 Industry Dr | Tukwila | WA | 98188 | (206) 575-1962 | (206) 575-1085 | www.froulaalarms.com | |
| NW Security & Sound LLC | PO Box 1592 | Snohomish | WA | 98291 | (360) 691-4200 | (360) 691-5951 | www.nwsecurity&sound.com | |
| Fire One Inc | 6710 Kitsap Way | Bremerton | WA | 98312 | (206) 575-0311 | (253) 872-7590 | www.fire-one.org | |
| Hughes Tech NW Inc | PO Box 5348 | Bremerton | WA | 98312 | (360) 479-3400 | (360) 479-1006 | www.hughestechnw.com | |
| Sound Electronics | 3409 S 37th St | Tacoma | WA | 98409 | (253) 472-2955 | (253) 472-2974 | www.soundelectronics.com | |
| Alarm Center Inc | PO Box 3407 | Lacey | WA | 98509 | (360) 456-1441 | www.acimonitoring.com | ||
| Mountain Valley Monitoring Inc | 512 NE 81st St | Ste F Box 127 | Vancouver | WA | 98665 | (541) 619-6017 | ||
| TB Peaster Inc dba Automatic Electronic Systems | 11703 NW 18th Ave | Vancouver | WA | 98685 | (360) 573-5818 | (360) 573-3700 | ||
| Keyhole Security Center | 238 S Wenatchee Ave | Wenatchee | WA | 98801 | (509) 663-5610 | (509) 662-8652 | www.keyholesecurity.com | |
| E3 Solutions Inc | PO Box 72 | Yakima | WA | 98907 | (509) 452-0240 | www.ecubedsolutions.com | ||
| Inland Security | PO Box 610 | Roslyn | WA | 98941 | (509) 649-2212 | (509) 649-3300 | www.inlandnet.com | |
| American Marketing and Cable Services Inc | PO Box 272 | Spokane Valley | WA | 99016 | (509) 370-3292 | (509) 267-1714 | ||
| Allied Fire and Security | 425 W 2nd Ave | Spokane | WA | 99201 | (509) 624-3152 | (509) 624-6909 | www.alliedfireandsecurity.com | |
| Total Security Inc | 1612 N Maple St | Spokane | WA | 99205 | (509) 462-2106 | (509) 462-2108 | www.totalsecurityinc.com | |
| SimplexGrinnell | 10010 E Knox Ave | Ste 100 | Spokane Valley | WA | 99206 | (509) 534-6055 | (509) 535-5623 | www.tycoint.com |
| Spokane Security Systems Inc dba Certified Security Systems | 1420 N Pines Rd | Spokane | WA | 99206 | (509) 922-9111 | www.certified-security.com | ||
| Fire Power Inc | 10220 N Nevada St | Ste 200 | Spokane | WA | 99218 | (509) 468-3204 | (509) 468-2758 | |
| Advanced Protection Services Inc | PO Box 2665 | Pasco | WA | 99302 | (509) 545-0752 | (509) 545-0753 | www.apswa.com | |
| Moon Security Services Inc | PO Drawer B | Pasco | WA | 99302 | (509) 545-1881 | (509) 545-4585 | www.moonsecurity.com | |
| Doyle Electric | 1421 Dell Ave | Walla Walla | WA | 99362 | (509) 529-2500 | (509) 525-6865 |