I-Corp International, Inc  
   USA. Consultants to geosynthetic products and systems manufacturers and installers, specializing in the performance of geosynthetics and plastic pipe for waste containment and water collection, containment and distribution. Technical information and list
   http://www.geosynthetic.com/

DWR Consultants, Inc.  
   Engineering firm specializing in soil, rock and water, projects from home foundations to complicated landslides, and offering field engineering and geophysical focus.
   http://www.ivenue.com/dwrconsultants/

Maddocks & Associates Pvt., Ltd  
   Australia. Consulting engineers for construction, and road and ground works. Design and installation of geosynthetic lining systems and floating membrane roofs. Also, soil testing services.
   http://www.geosynthetic.com.au/

GeoSyntec Consultants  
   USA. Multidisciplinary, geoenvironmental consulting and testing services for engineering, earth science and environmental projects. Complete testing program for geosynthetic materials, products and systems. List of publications. Links to related sites.
   http://www.geosyntec.com/

Cumberland Geotechnical Consultants, Inc  
   USA. Full service consulting geotechnical engineering company, providing test borings, geophysical surveys, testing and monitoring, engineering and design, and quality control and management services. Complete program of tests for geosynthetic materials a
   http://www.cumberlandgeo.com/

G.N. Richardson & Associates  
   USA. Specialty engineering and geological consulting company, focused on solid and hazardous waste management. List of landfill and lagoon projects. Links to newsletters and related sites.
   http://www.gnra.com/

Wardell Armstrong  
   UK. Consultants to the construction, mining, waste management, health and safety, and environmental industries. Geotechnical services for ground engineering.
   http://www.wardell-armstrong.com/

Gaea Engineering, Ltd  
   Canada. Multi-disciplinary civil engineering consultancy. Services for the geotechnical, geosynthetics, environmental and surveying industries. Also, associated project management. List of projects. Links to related sites.
   http://www.gaeaeng.com/

Atkinson, Davies Inc  
   Full service engineering firm, offering consulting, investigation, testing and problem solving services in the geosciences, environment, and construction materials quality control fields. Links to related sites.
   http://www.atkinsondavies.com/

Single Bore Multiple Anchors Ltd.  
   Specialist ground anchor design and consultancy.
   http://www.sbmasystems.com

Espana Geotechnical Consulting  
   A professional geotechnical engineering practice involved in building site evaluations to provide design and construction recommendations, assess sites for potential hazardous materials, perform engineering and geologic analyses, and inspect and test cons
   http://www.EspanaGeotechnical.com

GeoSystems Consultants, Inc.  
   Performs engineering and quality control for construction, design of landfills and impoundments, seismic risk analysis, geosynthetic and soil testing. Company profile and description of methods.
   http://www.geosystems.com/

Bunnell-Lammons Engineering, Inc.  
   Provides environmental, geotechnical, and construction materials engineering services.
   http://www.blecorp.com/

FCC Approved Ground Penetrating Radar Services  
   Work Smart, Inc provides Ground Penetrating Radar subsurface Imaging services through out North America using only FCC approved USRADAR equipment.
   http://www.worksmartinc.net

Call & Nicholas Inc.  
   International geotechnical consultants
   http://www.cnitucson.com

Paradigm Consultants, Inc  
   USA. Consulting and engineering services in geotechnical, construction and environmental areas. Also, construction materials testing services. Technical articles. Job opportunities. Links to related sites.
   http://www.thelabtexas.com/

RGH Geotechnical and Environmental Consultants  
   USA. Consultants in geotechnical engineering, engineering geology and construction observation. Also, full service geotechnical soils testing laboratorium, including aggregate and asphalt concrete testing.
   http://www.rghgeo.com/

Tony Barley  
   UK. Geotechnical engineer, specialized in consulting services for ground anchor contracting. List of clients. Technical papers about ground anchors on PDF files.
   http://www.sbmasystems.com/anchorman

Geo-Environmental, Inc.  
   Women-owned business enterprise that specializes in soil mechanics, foundation engineering, seismic surveys, laboratory tests and site recommendations. Includes list of some of the current clients and services. Located in Santa Ana, CA.
   http://www.geo-environmental.com/

Thiel Engineering  
   USA. Geotechnical and solid waste engineers, specializing in geosynthetic design applications for solid and liquid waste containment. Technical papers on PDF files. Links to related sites.
   http://www.rthiel.com/

DME Geotech  
   UK. Geotechnical advisory and consultancy services for preliminary studies, investigation, design, construction and expert opinions.
   http://www.dme-geotech.co.uk

Primus Consulting, Ltd  
   Canada. Geotechnical engineering and foundation design services.
   http://www.primusconsultingltd.com/index.htm

Fargo Consultants, Inc  
   USA. Civil engineering company specialized in geotechnical engineering, construction materials testing and environmental services.
   http://dallasfargo.com/

Cornforth Consultants, Inc  
   USA. Geotechnical engineering firm specializing in dams, seismic studies, landslides, rock mechanics and complex geotechnical projects.
   http://www.cornforthconsultants.com/

CMJ Engineering, Inc  
   USA. Geotechnical consultancy, focusing on soils and geology, foundation engineering, and related geotechnical and geological engineering.
   http://www.cmjengr.com

Geotechical Developments, Ltd  
   UK. Geotechnical and geo-environmental investigations and consultancy company, specialised in ground investigation, desk studies, environemtal risk assessments, GIS development, slope stability, contamination, and monitoring of gas and water.
   http://www.geotechnical.co.uk/

Landslide Technology  
   USA. Geotechnical engineering firm specializing in complex landslide evaluation, remediation and emergency response. Part of Conforth Consultants, Inc.
   http://www.landslidetechnology.com

Geotechnical and Environmental Consultants, Inc  
   USA. Geotechnical engineering, environmental and contamination screening services for the design of roads, bridges, and buildings.
   http://www.g-e-c.com/

Pennine Group  
   UK. Geotechnical engineering company, specialising in ground improvement services including dynamic compaction, stone column installation and vibropiling. Also, manufacturers of vibroflots, hydraulic power packs, jetting pumps and vibro rigs.
   http://www.pennine-group.com/

Burns Cooley Dennis, Inc  
   USA. Geotechnical consultants, providing geotechnical engineering, subsurface exploration, laboratory soil testing, construction monitoring and materials testing services.
   http://bcdgeo.com/

NDT Corporation  
   USA. High-resolution nondestructive and geophysical testing services to assess concrete structures and foundation conditions.
   http://www.ndtcorporation.com/

Philip Derbyshire Consultancy, Ltd  
   UK. Geotechnical consultancy, providing engineering advice on piling and foundations. Also, mediation and expert witness service.
   http://www.hdconsult.co.uk/phd