| Business | Phone |
| Adt-Security Link 2500 N Lynndale Dr, Appleton 54914 | (920) 733-9841 |
| Com Tec Security Llc 3030 E Goodland Dr, Appleton 54911 | (920) 749-0967 |
| Communication Support Inc 2420 N Locust St, Appleton 54914 | (920) 738-9700 |
| Lappen Security Products 2300 W Main St, Appleton 54911 | (920) 734-3027 |
| Sentinel Security Llc 3016 E Forest St, Appleton 54915 | (920) 733-0901 |
| Valor Security 4301 W Wisconsin Ave, Appleton 54913 | (920) 734-0613 |