| Business | Phone |
| Andrews Security Inc 1121 Kensington Ct, Alpharetta 30022 | (770) 667-5111 |
| Adtech Security Systems 4305 State Bridge Rd 103-, Alpharetta 30022 | (770) 338-9119 |
| Callaway Security & Sound 5935 Gateway Dr D, Alpharetta 30004 | (770) 395-9692 |
| Willett Wiring Total Care Entr 1825 Grassland Pkwy, Alpharetta 30004 | (770) 442-3161 |
| Spartan Security Systems Inc 470 Sherman Oaks Way, Alpharetta 30004 | (770) 475-4937 |
| Signature Alert 170 Providence Plantation Dr, Alpharetta 30004 | (770) 664-8616 |
| Riordan Technologies 11800 Wills Rd, Alpharetta 30004 | (770) 777-1855 |
| Phoenix Systems 1000 Windward Ridge Pkwy, Alpharetta 30005 | (678) 566-2640 |