| Business | Phone |
| Eye-Q Systems 9230 Deering Ave, Chatsworth 91311 | (818) 886-5880 |
| Gnisec 10010 Canoga Ave # B2, Chatsworth 91311 | (818) 882-3653 |
| Secura Key 20447 Nordhoff St, Chatsworth 91311 | (818) 882-0020 |
| Spi Communications 9590 Topanga Canyon Blvd, Chatsworth 91311 | (818) 709-0642 |
| Toye Corp 20916 Itasca St, Chatsworth 91311 | (818) 882-4000 |
| All Protect Security Systems 9617 Quartz Ave, Chatsworth 91311 | (818) 886-0349 |
| Secura Key 20301 Nordhoff St, Chatsworth 91311 | (818) 882-0020 |
| Sisco Home Electronics Inc 21630 Lassen St, Chatsworth 91311 | (818) 360-9436 |
| Southwest Access & Video Calif 9536 Topanga Canyon Blvd, Chatsworth 91311 | (818) 727-7500 |
| West Coast Security Systems 10535 Topanga Canyon Blvd, Chatsworth 91311 | (818) 718-0789 |