| Business | Phone |
| Annunciator Co 21265 Radisson Rd, Excelsior 55331 | (952) 474-0011 |
| Durance Corp 1617 Highway 7, Excelsior 55331 | (952) 474-4173 |
| Midwest Research & Educational 464 2nd St, Excelsior 55331 | (952) 474-4223 |
| Strategic Research Partners 186 Interlachen Ln, Excelsior 55331 | (612) 799-6100 |