| Business | Phone |
| Advantage Security Systems 6320 Monona Dr, Madison 53716 | (608) 221-9755 |
| Best Defense Security Systems 4309 Neptune Ct, Madison 53714 | (608) 223-1110 |
| Capital Fire & Security Inc 1308 Regent St, Madison 53715 | (608) 442-8777 |
| Securitylink From Ameritech 1302 Regent St, Madison 53715 | (608) 255-1201 |
| Floyd Total Security 559 Donofrio Dr, Madison 53719 | (608) 277-1234 |