| Business | Phone |
| Applied Geophysics Inc 661 S 400 E, Salt Lake City 84111 | (801) 328-8541 |
| Environmental Geophysical Svc 363 W 6160 S A, Salt Lake City 84107 | (801) 261-8258 |
| Industrial Imaging Co Inc Salt Lake City 84101 | (801) 359-4351 |
| Lgs Geophysics Inc 1104 Ashton Ave, Salt Lake City 84106 | (801) 466-1784 |
| Utah Geophysical 3521 Westwood Dr, Salt Lake City 84109 | (801) 272-4957 |