| Company Name | Street | Suite | City | St | Zip | Phone | Fax | Website |
| Security Concepts Inc | 181 Stagecoach Rd | Avon | CT | 06001 | (860) 673-0609 | (860) 673-0609 | www.securityconceptsinc.com | |
| Harris Security LLC | PO Box 838 | Bristol | CT | 06011 | (860) 583-6637 | (860) 584-9574 | www.harrissecurityllc.com | |
| Command Corporation | 59 Rainbow Rd | East Granby | CT | 06026 | (860) 653-1717 | (860) 653-9501 | www.commandco.com | |
| Cyclone Alarm Systems Inc | 124 White Oak Dr | Berlin | CT | 06037 | (860) 667-0913 | (860) 665-0269 | ||
| Unitech Sound & Security Systems LLC | 600 Four Rod Rd | Bldg 6 | Berlin | CT | 06037 | (860) 356-0321 | (860) 356-0321 | www.unitechsound.com |
| Dubaldo Security Systems Inc | 110 Tracy Dr | Manchester | CT | 06042 | (860) 645-6500 | (860) 643-5591 | ||
| A&N Security Plus LLC | 10 W Main St | Stafford Springs | CT | 06076 | (860) 851-9226 | |||
| Mendal Security Systems (Garmen Inc) | 187 S Main St | West Hartford | CT | 06107 | (860) 561-1099 | (860) 313-1399 | ||
| Niantic Computer Technology Inc | 20 Burton Ave | Norwich | CT | 06360 | (860) 608-6704 | (860) 425-8955 | ||
| Integrated Security Solutions LLC | 388 Butlertown Rd | Oakdale | CT | 06370 | (860) 442-2626 | (860) 442-1833 | www.issalarms.com | |
| ASP Security Systems/Alarm Security Protection Co Inc | PO Box 236 | Waterford | CT | 06385 | (860) 442-2016 | (860) 442-7131 | www.aspsecuritysystems.com | |
| Fire Protection Alarms LLC | 1701 Highland Ave | Cheshire | CT | 06410 | (203) 250-1115 | (203) 250-1116 | ||
| Fireworks LLC | PO Box 97 | Cheshire | CT | 06410 | (203) 271-7079 | (203) 271-7092 | ||
| Alarm Systems Inc | 13 Reservoir Rd | Clinton | CT | 06413 | (860) 669-2321 | (860) 669-5212 | ||
| Barnum Engineered Systems Inc | 495 Roosevelt Dr | Derby | CT | 06418 | (203) 734-8823 | (203) 926-9255 | ||
| BBS Security Systems | PO Box 160 | Marion | CT | 06444 | (203) 879-5408 | (203) 879-5408 | www.bbssecurity.com | |
| Mule Security Systems Inc | 125 Research Pkwy | Meriden | CT | 06450 | (203) 238-7561 | www.mulesecurity.com | ||
| RK Electronic Services LLC | 26 Beaver Cir | Monroe | CT | 06468 | (203) 650-0928 | (203) 459-9981 | ||
| VIP Security & Consulting Inc | 47 Melon Patch Ln | Monroe | CT | 06468 | (203) 268-2206 | (203) 261-7722 | ||
| Nationwide Security Corporation | 47 Montowese Ave | North Haven | CT | 06473 | (203) 785-0300 | (203) 867-8736 | ||
| Coastal Security Inc | PO Box 1077 | Old Saybrook | CT | 06475 | (860) 388-6366 | (860) 388-5300 | ||
| Armed & Ready Alarm Systems | PO Box 591 | Oxford | CT | 06478 | (203) 881-1996 | (203) 881-1997 | ||
| Protection One Alarm Monitoring Inc | One Greenwich Place | 2nd Fl | Shelton | CT | 06484 | (203) 402-3456 | (203) 402-3454 | www.protectionone.com |
| A-1 Security Systems Inc | PO Box 453 | Southington | CT | 06489 | (860) 628-6795 | |||
| ASE Group Inc | 10 Beaumont Rd | Wallingford | CT | 06492 | (203) 265-5400 | (203) 294-0599 | www.asegroupinc.com | |
| Alert Security Systems Inc | 308 Blake St | New Haven | CT | 06515 | (203) 387-8332 | (203) 397-1041 | ||
| Standard Security Systems Inc | PO Box 4005 | Bridgeport | CT | 06607 | (203) 334-1922 | (203) 337-3535 | www.standardsecurity.com | |
| Fairfield County Alarm Service Inc | 386 Morehouse Rd | Easton | CT | 06612 | (203) 261-8740 | (203) 261-9267 | ||
| Protect America Corporation/Dynamark Security-SecureNet | 1383 N Main St | Waterbury | CT | 06704 | (203) 757-1744 | (203) 759-0160 | ||
| Master Security Systems Inc | PO Box 137 | Middlebury | CT | 06762 | (203) 758-9909 | (203) 758-1794 | ||
| Structured Home Solutions LLC | 8 Sunny Ln | Sherman | CT | 06784 | (860) 210-0855 | (860) 488-9186 | www.shomesllc.com | |
| Soundworks & Security LLC | PO Box 23 | Torrington | CT | 06790 | (860) 496-7041 | (860) 496-7043 | www.soundworksandsecurity.com | |
| United Alarm Services Inc | 1087 Federal Rd | Ste 5 | Brookfield | CT | 06804 | (203) 775-8788 | (203) 775-8222 | www.unitedalarm.com |
| Homeguard Inc | 2325 Black Rock Tpke | Fairfield | CT | 06825 | (203) 371-0311 | (203) 371-8811 | ||
| Security Solutions Inc | 12 Oakwood Ave | Norwalk | CT | 06850 | (203) 846-8466 | www.ssisystems.net | ||
| American Alarm Ltd Inc | 18 High St | Norwalk | CT | 06851 | (203) 852-4343 | (203) 852-4342 | ||
| Security Specialists | 3 Depinedo Ave | Stamford | CT | 06902 | (203) 252-2300 | (203) 252-2301 | www.securityspecialists.com | |
| NYPI Security LLC | 550 West Ave | Stamford | CT | 06902 | (203) 223-6000 | (203) 504-5225 | ||
| PI Security LLC | 81 Ridge Brook Dr | Stamford | CT | 06903 | (203) 862-9300 | (203) 504-3153 |