| Company Name | Street | Suite | City | St | Zip | Phone | Fax | Website |
| Pacific Alarm Systems Inc | 4444 Sepulveda Blvd | Culver City | CA | 90230 | (310) 390-6661 | (310) 397-8796 | ||
| Magnuson Services | 4270 Madison Ave | Culver City | CA | 90232 | (310) 839-6106 | (310) 839-2460 | ||
| American Central Alarm Inc | PO Box 6860 | Torrance | CA | 90504 | (310) 793-7671 | (310) 793-7678 | ||
| Protection One Alarm Monitoring Inc | 5686 Corporate Ave | Cypress | CA | 90630 | (714) 763-0399 | (714) 763-0423 | www.protectionone.com | |
| General Alarm Services Inc | 14950 Lakewood Blvd | Ste C | Bellflower | CA | 90706 | (562) 602-2000 | (562) 602-2130 | |
| Eagle One Protection | 4515 Ocean View Blvd | Ste 150 | La Canada Flintridge | CA | 91011 | (818) 541-9800 | (818) 957-8008 | |
| USA Alarm Systems Inc | 138 E Chestnut Ave | Monrovia | CA | 91016 | (800) 833-6068 | (626) 256-7845 | www.usaalarmsystems.com | |
| Private Security | 1441 Huntington Dr | Ste 124 | South Pasadena | CA | 91030 | (800) 924-4880 | (626) 628-3463 | www.4alarmresponse.com |
| San Marino Security Systems Inc | 2405 Huntington Dr | San Marino | CA | 91108 | (626) 285-7778 | (626) 285-7181 | ||
| Protection Alarms Inc | 11024 Balboa Blvd | Ste 111 | Granada Hills | CA | 91344 | (866) 359-6555 | (818) 993-7178 | www.protectionalarms.com |
| Silver Security | 638 Lindero Canyon Rd | Ste 332 | Oak Park | CA | 91377 | (805) 496-5325 | (818) 865-8060 | |
| Protection One Alarm Monitoring Inc | 14801 Califa St | Van Nuys | CA | 91411 | (818) 373-6200 | (818) 373-6251 | www.protectionone.com | |
| Designer Sound Security Systems | 13547 Ventura Blvd | Ste 338 | Sherman Oaks | CA | 91423 | (818) 981-9249 | (818) 995-6890 | |
| Mijac Alarm Company | 9339 Charles Smith Ave | Ste 100 | Rancho Cucamonga | CA | 91730 | (909) 982-7612 | (909) 481-0124 | www.mijacalarm.com |
| Sentrytech Security Alarm Co | 15712 Gale Ave | Hacienda Heights | CA | 91745 | (626) 961-5788 | (626) 961-6228 | ||
| Diversified Alarm Service Inc | 1001 Monterey Pass Rd | Monterey Park | CA | 91754 | (800) 252-7652 | (323) 881-9883 | ||
| Southwest Alarm Service | PO Box 1133 | Upland | CA | 91785 | (909) 987-8936 | (909) 944-8579 | ||
| Chula Vista Alarm Inc | PO Box 6231 | Chula Vista | CA | 91909 | (619) 585-9111 | (619) 476-9954 | www.chulavistaalarm.com | |
| Alarm 2000 | 120 Birmingham Dr | Cardiff | CA | 92007 | (800) 897-4414 | (619) 544-1208 | ||
| Sentinel Security Systems | PO Box 300577 | Escondido | CA | 92030 | (760) 741-0890 | www.sentinelsecurity.com | ||
| Protection One Alarm Monitoring Inc | 12232 Thatcher Ct | Poway | CA | 92064 | (858) 391-2500 | (858) 391-2599 | www.protectionone.com | |
| Low Voltage Systems | 12315 Oak Knoll Rd | Ste 300 | Poway | CA | 92064 | (858) 748-7497 | (858) 748-7496 | www.lowvoltagealarms.com |
| American Surveillance & Security | 413 Las Posas Rd | San Marcos | CA | 92069 | (760) 591-4000 | (760) 591-4330 | ||
| Nova Security | 10744 Rockville St | Santee | CA | 92071 | (619) 448-3007 | (619) 448-3008 | ||
| SDA Security | 2054 State St | San Diego | CA | 92101 | (619) 338-1241 | (619) 338-1209 | www.sdasecurity.com | |
| Pacific Alarm Service Inc | 521 Wellwood Ave | Beaumont | CA | 92223 | (951) 845-1666 | (909) 769-1230 | www.pacificalarm.com | |
| Command One Security | PO Box 13235 | Palm Desert | CA | 92255 | (760) 568-0052 | (760) 340-4857 | ||
| Total Watch Security Inc | 73700 Dinah Shore Dr | Ste 404 | Palm Desert | CA | 92260 | (760) 770-6519 | (760) 770-9128 | |
| All Protection Alarm | PO Box 6845 | Big Bear Lake | CA | 92315 | (909) 866-6586 | (909) 866-0891 | www.allprotectionalarm.com | |
| Safeway Security Systems | 1474 Miller Dr | Colton | CA | 92324 | (909) 824-7980 | (909) 824-0571 | ||
| Lake Arrowhead Patrol & Security Services | PO Box 549 | Lake Arrowhead | CA | 92352 | (909) 337-2023 | (909) 337-0418 | www.lakearrowheadpatrol.com | |
| Hi-Desert Alarm | 16637 Mojave Dr | Victorville | CA | 92395 | (760) 245-8600 | (760) 245-0071 | www.hidesertalarm.com | |
| IE Alarm Systems | 1175 Center St | Riverside | CA | 92507 | (909) 686-2029 | (909) 686-6318 | ||
| Protection One Alarm Monitoring Inc | 525 Technology Ct | Ste 102 | Riverside | CA | 92507 | (951) 782-6900 | (951) 369-1466 | www.protectionone.com |
| Premier Plus dba Advanced Security Technologies | 18416 Moss Rd | Riverside | CA | 92508 | (888) 857-9091 | (951) 780-8835 | www.ast-security.com | |
| Computer Alert Systems Inc | 27570 Commerce Center Dr | Ste 119 | Temecula | CA | 92590 | (909) 676-6880 | (906) 676-0259 | |
| Bay Security & Communications | PO Box 2149 | Newport Beach | CA | 92659 | (888) 229-7233 | (949) 650-6571 | www.baysecurity.com | |
| JMG Security Systems Inc | 17150 Newhope St | Ste 109 | Fountain Valley | CA | 92708 | (714) 545-8882 | (714) 545-0352 | www.jmgsecurity.com |
| ADS Security Systems Inc | 1594 S Anaheim Blvd | Ste C | Anaheim | CA | 92805 | (714) 758-1212 | (714) 758-1217 | www.ads-alarm.net |
| Southern California Security | 1117 Creekside Dr | Fullerton | CA | 92837 | (714) 525-1052 | (714) 525-3941 | ||
| AJ Alarm Systems | PO Box 1069 | Yorba Linda | CA | 92885 | (714) 579-0922 | (714) 579-0927 | ||
| Security Telecommunication of Porterville Inc | 768 N Prospect St | Porterville | CA | 93257 | (559) 781-3310 | (559) 781-6586 | ||
| Protection One Alarm Monitoring Inc | 724 N Elko St | Visalia | CA | 93291 | (559) 651-4950 | (559) 651-4961 | www.protectionone.com | |
| Simpkins Security Services | 1236 N 1st Pl | Lompoc | CA | 93436 | (805) 736-7046 | (805) 736-7046 | ||
| Universal Electronic Alarms | 709 W Avenue I | Lancaster | CA | 93534 | (661) 942-7418 | (661) 940-8669 | ||
| Hoffman Electronic Systems | PO Box 879 | Merced | CA | 93541 | (209) 384-3305 | (209) 722-1107 | ||
| TCW Systems | 1747 E Avenue Q | Ste B-1 | Palmdale | CA | 93550 | (661) 273-3333 | (661) 789-5800 | www.telwest.com |
| Mid Valley Alarm | PO Box 1770 | Clovis | CA | 93612 | (559) 323-5056 | (559) 323-5053 | ||
| Sebastian | 811 S Madera | Kerman | CA | 93630 | (559) 846-4874 | (559) 846-6139 | www.sebastiancorp.com | |
| Valley Security and Alarm | 660 W Locust St | Ste 102 | Fresno | CA | 93650 | (559) 495-3070 | (559) 485-5380 | |
| Matson Alarm | 8401 N Fresno St | Fresno | CA | 93720 | (559) 438-8000 | (559) 431-6291 | www.matsonalarm.com | |
| Safeco Security Systems | 5530 E Lamona Ave | Ste 107 | Fresno | CA | 93727 | (559) 227-3608 | (559) 436-4548 | www.safecosecuritysystems.com |
| Service Alarm Company | PO Box 11246 | Fresno | CA | 93772 | (559) 251-2397 | (559) 456-8083 | ||
| All Security and Fire Experts (ALL-SAFE) | 365 Victor St | Ste M | Salinas | CA | 93907 | (831) 758-2721 | (831) 758-4109 | www.allsafeintegrate.com |
| Sentry Alarm Systems of America | 8 Thomas Owens Way | Monterey | CA | 93940 | (831) 375-2727 | (831) 372-0131 | www.sentryalarm.com | |
| D E A Security Systems Co Inc | PO Box 828 | 870 Old County Rd | Belmont | CA | 94002 | (800) 697-8400 | ||
| Tri County Alarm Systems Inc | 1014 Edwards Rd | Burlingame | CA | 94010 | (650) 685-6290 | (650) 685-6284 | www.tricountyalarms.com | |
| Rod Muscio Electrical Contractor | 901-D Palmetto Ave | Pacifica | CA | 94044 | (650) 359-5360 | (650) 359-7963 | www.muscioelectric.com | |
| A & S Alarm Company | PO Box 1534 | Pacifica | CA | 94044 | (415) 863-5318 | (650) 355-9099 | ||
| Peninsula Security Services Inc | 1755 E Bayshore Rd | Ste 28B | Redwood City | CA | 94063 | (650) 369-7100 | (650) 369-7430 | |
| San Francisco Fire Protection Inc | 1355 Fairfax Ave | Ste B | San Francisco | CA | 94124 | (415) 282-4288 | (415) 282-8070 | |
| RN Security Company | 1520 W Winston Ave | Hayward | CA | 94545 | (510) 786-2767 | (510) 786-2761 | ||
| All-Guard Alarm Systems | 23194 Kidder St | Hayward | CA | 94545 | (800) 255-4273 | (800) 350-2801 | www.allguardsystems.com | |
| Covan Alarm Co Inc | 569 Leisure St | Livermore | CA | 94551 | (925) 454-9886 | (925) 456-6461 | www.covansystems.com | |
| Low Voltage System Integration Inc | 3775 Pacheco Blvd | Martinez | CA | 94553 | (925) 723-3600 | (925) 723-3604 | ||
| Bay Alarm Company | 60 Berry Dr | Pacheco | CA | 94553 | (925) 808-4459 | (925) 808-4926 | ||
| Maximum Security Alarms | PO Box 629 | Pinole | CA | 94564 | (510) 741-8015 | (510) 741-8183 | ||
| Cal Pacific Alarms | PO Box 4216 | San Leandro | CA | 94579 | (510) 483-7513 | www.calpacificalarms.com | ||
| Protection One Alarm Monitoring Inc | 6691 Owens Dr | Pleasanton | CA | 94588 | (925) 251-9088 | (925) 969-1051 | www.protectionone.com | |
| Morgan Alarm Co Inc | 1487 Lemon St | Vallejo | CA | 94590 | (707) 522-1221 | (707) 522-3164 | ||
| Reed Brothers Security | 4432 Telegraph Ave | Oakland | CA | 94609 | (510) 652-2477 | (510) 652-7081 | www.reedbrothers.com | |
| On-Guard Security | 1095 Eleanor Ave | Rohnert Park | CA | 94928 | (707) 584-0894 | (707) 584-1097 | www.on-guardsecurity.com | |
| Redwood Security Systems | PO Box 1809 | Mill Valley | CA | 94942 | (415) 388-5355 | (415) 388-2754 | www.redwoodsecurity.com | |
| RFI Enterprises Inc | 360 Turtle Creek Ct | San Jose | CA | 95125 | (408) 298-5400 | (408) 275-0156 | www.rfi.com | |
| Signal Service | PO Box 597 | Angels Camp | CA | 95222 | (209) 736-4996 | (209) 736-9301 | www.signalserviceinc.com | |
| Bayless Electrical Technology | PO Box 668 | Valley Springs | CA | 95252 | (800) 889-0440 | (209) 786-4458 | www.baylesselectric.com | |
| Alamo Alarm Company | PO Box 573 | Woodbridge | CA | 95258 | (209) 369-7749 | (209) 334-5784 | ||
| Greystone Electric | 16175 Comet Mine Ct | Sonora | CA | 95370 | (209) 694-8067 | (866) 800-5883 | www.greystoneelectric.net | |
| Allied Alarms | 3009 Coffey Ln | Ste B | Santa Rosa | CA | 95403 | (707) 575-7380 | (707) 545-6317 | |
| North Coastal Signal Inc | PO Box 720 | Fort Bragg | CA | 95437 | (707) 962-0333 | (707) 962-0499 | ||
| Deep Valley Security | 960 N State St | Ukiah | CA | 95482 | (707) 462-5200 | (707) 462-1478 | www.deepvalleysecurity24.com | |
| Advanced Security Systems | 3302 T St | Eureka | CA | 95503 | (707) 443-6366 | (707) 443-6377 | www.advancedsecurity.us | |
| ASE Communications Center | 436 Harris St | Eureka | CA | 95503 | (707) 443-7001 | (707) 445-9200 | ||
| SE Technologies | PO Box 365 | West Sacramento | CA | 95691 | (916) 371-5484 | (916) 570-2347 | ||
| Foothill Alarm Systems Inc | 233 Technology Way | Ste A8 | Rocklin | CA | 95765 | (916) 626-3190 | (916) 626-3199 | |
| Safe Side Security Inc | 1240 Commerce Ave | Ste C | Woodland | CA | 95776 | (530) 662-1144 | (530) 662-4859 | www.safeside.com |
| Sacramento Valley Alarm Security System | 5933 Folsom Blvd | Sacramento | CA | 95819 | (916) 452-1481 | (916) 452-4004 | www.sacalarm.com | |
| Astro Security Monitoring formerly ASTRO SONICS | 4799 24th St | Sacramento | CA | 95822 | (916) 452-7876 | (916) 452-9397 | ||
| Capitol City Security | 4437 Livingston Way | Sacramento | CA | 95823 | (916) 424-6195 | (916) 424-4024 | www.ccsalarmsystems.com | |
| Protection One Alarm Monitoring Inc | 1174 National Dr | Ste 10 | Sacramento | CA | 95834 | (916) 419-1301 | (916) 419-1383 | www.protectionone.com |
| Lifeline Security & Automation Inc | 2400 Del Paso Rd | Ste 132 | Sacramento | CA | 95834 | (916) 285-9078 | (916) 285-9035 | www.lifelinesecure.com |
| Certified Security Systems | PO Box 4525 | Chico | CA | 95927 | (530) 893-4922 | (530) 893-0903 | www.certifiedsystems.net | |
| Beam Security Systems Inc | 422 Henderson St | Grass Valley | CA | 95945 | (530) 273-5166 | (530) 274-3612 | ||
| Hue & Cry Security Systems Inc | 1751 Bruce Dr | Anderson | CA | 96007 | (800) 762-3196 | (530) 365-8273 | www.hueandcry.com | |
| Siskiyou Two-Way | PO Box 412 | Yreka | CA | 96097 | (530) 842-4863 | (530) 842-7670 | ||
| Security Lock & Alarm Inc | PO Box 5475 | Tahoe City | CA | 96145 | (530) 583-6901 | (530) 581-2094 | www.securitylockandalarm.com |