| Business | Phone |
| Action Surveillance 4500 W State St, Milwaukee 53208 | (414) 342-2600 |
| Adi 3720 N 124th St F, Milwaukee 53222 | (414) 463-8376 |
| Airborne Security 9401 W Beloit Rd 305, Milwaukee 53227 | (414) 545-0710 |
| Akal Security 310 W Wisconsin Ave, Milwaukee 53203 | (414) 298-0023 |
| Assurity Security 5349 N 91st St # 204, Milwaukee 53225 | (414) 527-1508 |
| C C Photo Id Milwaukee 53202 | (414) 422-1408 |
| Check Point Systems Inc 12195 W Barnard Ave, Milwaukee 53228 | (414) 529-2883 |
| Control Points Inc 8585 N 76th Pl, Milwaukee 53223 | (414) 365-2553 |
| Digital Systems Corp 3 N Main, Milwaukee 53212 | (414) 263-9625 |
| Dorlen Products 6615 W Layton Ave, Milwaukee 53220 | (414) 282-4840 |
| First Alarm 5843 N Lovers Lane Rd, Milwaukee 53225 | (414) 462-5276 |
| Fort Knox Security 5420 S Honey Creek Dr, Milwaukee 53221 | (414) 281-7111 |
| Greenway Associates Milwaukee 53208 | (414) 342-2600 |
| Ingersoll-Rand Security Tech 3603 W Oklahoma Ave, Milwaukee 53215 | (414) 384-8226 |
| Klein Cpp Security Cnsltnt 2463 S 94th St, Milwaukee 53227 | (414) 541-4680 |
| Loss Prevention Systems 4309 N Farwell Ave, Milwaukee 53211 | (414) 961-7300 |
| Vicetec Security Group Inc 7418 W Hampton Ave, Milwaukee 53218 | (414) 527-9030 |
| United Technology Integration 3809 W Fairmount Ave, Milwaukee 53209 | (414) 464-9181 |
| Total Security Solutions 330 E Kilbourn Ave, Milwaukee 53202 | (414) 355-5523 |
| Town & Country Electric 3720 N 124th St P, Milwaukee 53222 | (414) 438-2410 |
| P O N's Security Svc 1315 S 23rd St, Milwaukee 53204 | (414) 383-6600 |
| SOS Electronics Corporation 2310 West Camden Road, Milwaukee 53209 | (414) 616-7008 |