| Advanced Environmental Solutions, LLC: Environmental and geoscience consulting including site characterization, assessment and remediation design. |
| Alan Kropp and Associates: Geotechnical consulting firm located in Berkeley, California. |
| Allen Hubbard: Geologist consulting on a wide range of environmental and geological issues. |
| BGC Engineering Inc.: Specialist consulting services in applied earth sciences, with specific emphasis on the application of geotechnical and geo-environmental engineering, and engineering geology. |
| Coastal and Ocean Resources Inc.: Offering seabed imaging and mapping surveys, aerial video mapping, underwater video imaging, oil spill impact assessment, marine resource analysis, and other marine consulting services. |
| Columbia Geotechnical Associates: Consulting firm specializing in Quaternary geology, archaeology, cultural resources management, soils science and geomorphology. Describes qualifications and services. Based in Ellensburg, Washington (U.S.). |
| Cotton, Shires & Associates, Inc.: Professional geotechnical firm, providing consulting and litigation services throughout the western United States. |
| Earth Research: Earth Sciences research and data analysis service, focusing on geography, geology, geoscience, and the environment. |
| Exploration Technologies, Inc.: Provides exploration and environmental geochemistry services, including soil vapor site assessments, seismic geochemistry, and product fingerprinting for contaminant spills. Site includes a collection of published professional papers. |
| Field Geology Services: John Field, PhD, fluvial geomorphologist based in New England (USA), offers short courses and services in flood hazard studies, stream restoration, GIS-based watershed assessment, and project monitoring. |
| Geo-Marine Technology: Marine geology and geophysics consultancy services to offshore oil and gas industries, offshore survey industries, and governments. |
| Geocon: Management and consultancy services in all aspects of exploration, engineering, information technology, safety and the environment. |
| Geotechnical Engineering Inc.: Consultants in Geologic and Soil Engineering serving the greater San Francisco Bay Area since 1979. |
| Golder Associates: Providing comprehensive civil/geotechnical and environmental consulting services to a wide range of industries worldwide. |
| Haneberg Geoscience: Consulting and applied research solutions in engineering geology, hydrogeology, and applied geomechanics. Landslides, mudslides, debris flows, land subsidence, and other geologic hazards. GIS applications in natural resource and watershed assessments. |
| Headwaters Explorations: Small geological and environmental consulting firm offering Phase I environmental assessments, mineral resource evaluations and rock fall investigations in western Colorado (mostly Gunnison County). |
| Kayler Geoscience, Ltd.: Providing services keyed to identifying, evaluating, developing, and managing natural resources. |
| LunarAtlantic Earth Science Consultants: Firm with a wide range of earth science specialities. |
| Ninyo & Moore: Geotechnical and environmental engineers, based in California. |
| NorthWest Research Associates, Inc.: Contract-research firm conducting in-depth investigations in the physical sciences and providing consulting services to government and industry. Expertise ranges from atmospheric, ocean, and sea ice sciences, to fundamental geophysical fluid dynamics and space physics. We also produce instrumentation for the geosciences. |
| Osiris Projects: Hydrographic and geographic survey specialists, ISO 9002 accreditation specifically for carrying out this type of work. |
| Precious Metal Exploration Maps: Exploration maps, assaying of ore samples and interpretation of geological and geophysical data by a seasoned geologist, G.H.Hamilton. |
| Providence Oil Company: Specializing in geological analysis and seismic studies. |
| TXR Consulting: Geology, geophysics, and geochemistry consulting company in South America. |
| Valls Geoconsultant: Geological and geochemical research consultant offering underground and open pit mapping and sampling experience. |
| Virginia Geotechnical Services, P.C.: Professional consulting firm specializing in geoenvironmental services, geotechnical engineering, and construction monitoring. Located in Richmond, Virginia. |
| Wade Research: Offers a wide range of consulting services in chemistry, with experience in soil and groundwater remediation, environmental impact assessment, litigation support, and expert testimony. |
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