| Naics index | Naics index description |
|---|---|
| 541360 | Geophysical surveying services |
| 541360 | Gravity geophysical surveying services |
| 541360 | Magnetic geophysical surveying services |
| 541360 | Mapping services, geophysical |
| 541360 | Radioactive geophysical surveying services |
| 541360 | Remote sensing geophysical surveying services |
| 541360 | Seismic geophysical surveying services |
| 541360 | Surveying services, geophysical |
| 541370 | Cartographic surveying services |
| 541370 | Aerial surveying (except geophysical) services |