| Business | Phone |
| Advance Materials Engineering 2203 N Eastman Rd, Midland 48642 | (989) 839-8508 |
| American Turbans Inc 545 E Progress Pl, Midland 48640 | (989) 839-8557 |
| Bartow & King Engineers 304 W Wackerly St 600, Midland 48640 | (989) 837-3280 |
| Dealers Engineering 712 George St # B, Midland 48640 | (989) 835-3112 |
| Perigee Engineering Svc 1812 Candlestick Ln, Midland 48642 | (989) 697-5230 |