| Business | Phone |
| J Gordon Electronic Design 500 73rd Ave Ne # 105, Minneapolis 55432 | (763) 786-2405 |
| Digital Mediacom Inc 5001 W 80th St, Minneapolis 55437 | (952) 837-1027 |
| Electro Soft Engineering Inc 2500 Highway 88 # 210, Minneapolis 55418 | (612) 781-2723 |
| North Pole Engineering 212 3rd Ave N # 565, Minneapolis 55401 | (612) 305-0440 |