| Business | Phone |
| Wille Associates Engineering 6100 Glenwood Ave, Golden Valley 55422 | (763) 545-1985 |
| Applications Research Inc 4927 Saint Croix Ave N, Golden Valley 55422 | (763) 521-0217 |
| Dahlen Systems Inc 8401 Wayzata Blvd, Golden Valley 55426 | (763) 545-3528 |