| Business | Phone |
| D S Walker Enterprises Inc 375 S 400 W, Logan 84321 | (435) 753-2709 |
| Keller-Bliesner Engineering 78 E Center St, Logan 84321 | (435) 753-5651 |
| Mech Tech Engineering 506 S Main St, Logan 84321 | (435) 753-0515 |
| Specialized Analysis Engineer 1082 W 1700 N, Logan 84321 | (435) 755-8140 |
| Structural Solutions Inc 45 N Main St, Logan 84321 | (435) 787-2789 |