- Apollo Geophysics Corp
- Cates Earth Science Tech
- Geo Data Corp
- Geophysical Associates Inc
- Gravimetrics Inc
- Grumman Exploration Inc
- Hepler Research & Development
- Integrity Geophysics
- International Geophysical Co
- John M Logan & Assoc
- Kenneth Kelly
- Naeva Geophysics Inc
- Quitman Winter
- R L Schumacher
- Rasmussen & Assoc
- Ray Suhm Consulting
- Shell Gas Station
- Star Geophysics Inc
- Victory Sports Ctr
