- Alpine Ocean Seismic Survey
 - Provides geophysical, geotechnical, oceanographic, hydrographic, geochemical, and environmental services. - Barbour Well Surveying Corporation
- Developer of downhole cameras and provides services for the geotechnical, groundwater, oil, gas, and mining industries.
- Bay Geophysical Associates, Inc.
- Specialises in the design, acquisition, processing and interpretation of geophysical surveys for engineering, environmental, and mining applications.
- Compagnie Generale de Geophysique (1)
- Earth Research
- Offers confidential assistance with earth science or geology research proposals, papers, articles, thesis, or dissertations.
- EarthView Associates, Inc
- Consulting and training in geology, geophysics, and biostratigraphy. Supports new plays, field acquisitions, basin statistics, and unusual geology.
- Edcon, Inc.
- Geophysical company specialising in worldwide gravity & magnetic data acquisition, processing & interpretation.
- Elohi Geophysics, Inc.
- Geophysics for near-surface, geotechnical, and environmental characterization. surface and downhole swept frequency seismic sources. reflection, refraction, and borehole surveys.
- European Geophysical Services
- EGS is a provider of surface and borehole geophysical services, operating from offices in Europe and the Middle East.
- GEDCO - Geophysical Exploration & Development Corporation
- A full service geophysical consulting firm offering 3D/2D seismic design and interpretation, as well as potential field services, such as high-resolution aeromagnetics and gravity.
- Geo-Graf, Inc.
- Specialises in performing nonintrusive subsurface investigations using ground penetrating radar, electromagnetics, magnetics, and radio frequencies.
- GeoLine
- Engineering consultancy company offering specialist geotechnical, pipeline, and software engineering.
- Geophex, Ltd.
- Environmental engineering, geology, geophysics, and consulting firm providing services to industry and government.
- Geophysical Institute of Israel
- State-owned company specialising in geophysical surveys for oil exploration, water development and site investigation.
- GMG/AXIS
- Provides geophysical software products, seismic data processing services, and advice, from acquisition design to advanced reservoir imaging.
- Hager-Richter Geoscience, Inc.
- Offering professional services in geology and geophysics to the environmental and engineering community.
- Isotech Laboratories, Inc.
- Specialises in isotopic analysis of gas and water samples.
- K/T GeoServices, Inc.
- Specialising in clay and bulk mineralogy analysis by X-ray diffraction (XRD) and scanning electron microscopy (SEM).
- Lockwood, J.P. Ph.D.
- Consulting volcanologist in Volcano, Hawaii.
- MinnovEX Technologies Inc.
- Developing, integrating, and implementing processing solutions for mining engineers and mineral processors.
- NAEVA Geophysics, Inc.
- Services provided include electromagnetics, magnetics, GPR, seismic reflection/refraction and borehole logging. With offices in New York and Virginia.
- New England Research, Inc.
- Geophysical research and development company.
- Pagani Geotechnical Equipment
- New and used geotechnical and geophysical equipment.
- Petroglyphx Geoscience
- Publisher of petroleum geoscience directories and customised contact and geoscience databases.
- Radarscan Inc.
- Use ground penetrating radar to conduct subsurface and civil surveys.
- Seamap Inc.
- Manufactures seismic exploration and geophysical survey equipment with emphasis on design electronics for a broad spectrum of oceanographic and seismic data acquisition applications.
- Seismo-Watch
- Provides earthquake information services including bulletins, publications, and media services.
- Solexperts AG
- Geotechnical and hydrogeological instrumentation, in-situ testing, monitoring and consulting services worldwide
- Subsurface Surveys
- Specialises in geophysical data acquisition, processing, and interpretation.
- Technical Exploration
- Consulting geoscientists specialising in geological and geophysical exploration work in remote, difficult environments.
- UFA Ventures, Inc.
- Geology and soil laboratory provides hydrogeology technology, testing services, environmental remediation, feasability studies, consulting, and sales of the UFA instrument.
- Ultramag Geophysics Pty., Ltd.
- Measuring the earths magnetic field for fun, science & profit. Magnetometer manufacture, sales, rentals. Something interesting for everyone, from locating bombs to gold mines.
- Zonge Engineering & Research
- Electrical geophysics instrumentation and field surveys.
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