| Business | Phone |
| Alarm Corporation Of America 9000 131st Ave, Largo 33773 | (727) 518-1041 |
| Suncoast Security Screens 11337 Starkey Rd # F2, Largo 33773 | (727) 541-4225 |
| Spy Electronics 9101 Park Blvd, Largo 33777 | (727) 391-5631 |
| Digitec Security 12600 Belcher Rd S, Largo 33773 | (727) 536-5493 |