| Business | Phone |
| Automated Access Systems 11830 W Ripley Ave, Milwaukee 53226 | (262) 896-6668 |
| Midwest Sigma Sales Inc 9993 W North Ave 341, Milwaukee 53226 | (414) 774-1185 |
| Vibra-Flight Systems Inc 8331 W Calumet Rd, Milwaukee 53223 | (414) 365-1176 |
| Stapleman Corp 7911 N Rockledge Ave, Milwaukee 53209 | (414) 352-5777 |
| Nova Systems Inc 11629 W Dearbourn Ave, Milwaukee 53226 | (414) 771-4800 |
| Rockwell Automation Inc 777 E Wisconsin Ave # 1400, Milwaukee 53202 | (414) 212-5200 |
| Real Time Automation 2825 N Mayfair Rd 11, Milwaukee 53222 | (414) 453-5100 |