- DWS International, Inc.
http://www.dwsii.com/
Worldwide marine geophysical 2D and 3D survey services, hydrographic surveys, system integration, side scan sonar, sea bottom classification, and seismic vessel outfitting and management.
- Earth Dynamics
http://www.earthdyn.com/
Terrestrial and marine engineering geophysical studies including: seismic refraction, electrical resistivity, ground penetrating radar, gravity, magnetics, side scan sonar and sub-bottom profiling.
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