| Business | Phone |
| Surface Engineering Group 1408 Northland Dr, St Paul 55120 | (651) 686-9700 |
| Tech Power Engineering Svc 4651 Nicols Rd # 108, St Paul 55122 | (651) 379-2299 |
| Advanced Concepts In Design 141 Bluwood Ave, St Paul 55117 | (651) 483-4636 |
| Superior Signal Design Inc 1802 Wooddale Dr # 206, St Paul 55125 | (651) 714-9311 |
| Cei Engineering Inc 2277 Highway 36 W # 200, St Paul 55113 | (651) 697-0800 |
| Danda Engineering 4302 Pond View Dr, St Paul 55110 | (651) 426-2098 |
| Kima Industrial 469 Terrace Dr, St Paul 55113 | (651) 636-7519 |
| Lawrence Engineering 2678 2nd Ave E, St Paul 55109 | (612) 751-9083 |
| Mission Critical Engineering 2353 Rice St, St Paul 55113 | (651) 484-4846 |
| Paulson & Clark Engineering 2352 County Road J, St Paul 55110 | (651) 407-6056 |
| Spectrum Mold 380 Oak Grove Pkwy # 100, St Paul 55127 | (651) 762-9612 |
| V 8 Engineering 105 Highway 8, St Paul 55112 | (651) 631-1888 |
| V I Engineering 4463 White Bear Pkwy, St Paul 55110 | (651) 484-1332 |