 Allen Hubbard - http://allenhubbard.tripod.com/ Geologist consulting on a wide range of environmental and geological issues. |
 Golder Associates - http://www.golder.com/ Providing comprehensive civil/geotechnical and environmental consulting services to a wide range of industries worldwide. |
 Kayler Geoscience, Ltd. - http://www.kaylergeoscience.homestead.com/ Providing services keyed to identifying, evaluating, developing, and managing natural resources. |
 Headwaters Explorations - http://www.homestead.com/headwaters/home.html Small geological and environmental consulting firm offering Phase I environmental assessments, mineral resource evaluations and rock fall investigations in western Colorado (mostly Gunnison County). |
 NorthWest Research Associates, Inc. - http://www.nwra.com/ 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. |
 Earth Research - http://www.earthresearch.com/ Earth Sciences research and data analysis service, focusing on geography, geology, geoscience, and the environment. |
 Haneberg Geoscience - http://www.haneberg.com/ 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. |
 Providence Oil Company - http://www.providenceoil.com/ Specializing in geological analysis and seismic studies. |
 LunarAtlantic Earth Science Consultants - http://www.lunaratlantic.com/ Firm with a wide range of earth science specialities. |
 Wade Research - http://www.waderesearch.com/ Offers a wide range of consulting services in chemistry, with experience in soil and groundwater remediation, environmental impact assessment, litigation support, and expert testimony. |
 Cotton, Shires & Associates, Inc. - http://www.cottonshires.com/ Professional geotechnical firm, providing consulting and litigation services throughout the western United States. |
 Alan Kropp and Associates - http://www.akropp.com/ Geotechnical consulting firm located in Berkeley, California. |
 Precious Metal Exploration Maps - http://www.explorationgeologist.com Exploration maps, assaying of ore samples and interpretation of geological and geophysical data by a seasoned geologist, G.H.Hamilton. |
 Field Geology Services - http://www.field-geology.com/ 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. |
 Valls Geoconsultant - http://www.geocities.com/geoquimico/ Geological and geochemical research consultant offering underground and open pit mapping and sampling experience. |
 Geo-Marine Technology - http://www.geomarinetech.com/ Marine geology and geophysics consultancy services to offshore oil and gas industries, offshore survey industries, and governments. |
 TXR Consulting - http://www.trxconsulting.com/ Geology, geophysics, and geochemistry consulting company in South America. |
 Geotechnical Engineering Inc. - http://www.gei-ca.com/ Consultants in Geologic and Soil Engineering serving the greater San Francisco Bay Area since 1979. |
 Exploration Technologies, Inc. - http://www.eti-geochemistry.com/ Provides exploration and environmental geochemistry services, including soil vapor site assessments, seismic geochemistry, and product fingerprinting for contaminant spills. A collection of published professional papers. |
 Ninyo & Moore - http://www.ninyoandmoore.com/ Geotechnical and environmental engineers, based in California. |
 Advanced Environmental Solutions, LLC - http://www.advenvsoln.com/ Environmental and geoscience consulting including site characterization, assessment and remediation design. |
 RPS Group PLC - http://www.rpsgroup.com Management and consultancy services in all aspects of exploration, engineering, information technology, safety and the environment. |
 Osiris Projects - http://www.osirisprojects.co.uk/ Hydrographic and geographic survey specialists, ISO 9002 accreditation specifically for carrying out this type of work. |
 BGC Engineering Inc. - http://www.bgcengineering.ca/ Specialist consulting services in applied earth sciences, with specific emphasis on the application of geotechnical and geo-environmental engineering, and engineering geology. |