| Advanced Earth Sciences, Inc. | Irvine, California |
| AGI Technologies | Portland, Oregon |
| AGRA Earth & Environmental, Inc. | Kirkland, Washington |
| AGRA Earth & Environmental, Inc. | Anaheim, California |
| Aker Technology AS | Oslo, Norway |
| Allan E. Seward Eng. Geology, Inc. | Valencia, California |
| Almenna Verkfraedistofan hf. | Reykjavik, Iceland |
| AMEC | Oakville, Ontario, Canada |
| American University of Sharjah | Sharjah, United Arab Emirates |
| Anglo American Book Co. | Rome, Italy |
| Ankara University | Ankara, Turkey |
| Applied Insurance Research | Boston, Massachusetts |
| Australian Geological Survey Organisation (AGSO) | Canberra, Australia |
| Basis Soft, Inc. | Seoul, Korea |
| BAU Consultant Co., Ltd. | Seoul, Korea |
| Bauhaus-Universitat Weimar | Weimar, Germany |
| BGC Engineering, Inc. | Vancouver, British Columbia, Canada |
| Bilfinger Berger AG International | Hsi Tso Tsun, Taiwan |
| Boris Simpser, Consulting Engineer | Mexico City, Mexico |
| Brigham Young University | Provo, Utah |
| Brookhaven National Laboratory | Upton, New York |
| Byucksan Engineering | Taipao City, Chiayi Hsein, Taiwan |
| C.T. Male Associates, P.C. | Latham, New York |
| Cal Poly San Luis Obispo | San Luis Obispo, California |
| Caltrans | Sacramento, California |
| Carlelton University | Ottawa, Ontario, Canada |
| Carlton Engineering, Inc. | Shingle Springs, California |
| Centro de Geofisica da Univ. de Lisboa | Lisbon, Portugal |
| CH2M Hill | Oakland, California |
| CH2M Hill | Greenwood Village, Colorado |
| City of Richmond | Richmond, British Columbia, Canada |
| City University of New York | New York, New York |
| Clarkson University | Potsdam, New York |
| CNG Softek Co., Ltd. | Seoul, Korea |
| Daejung Consultant | Seoul, Korea |
| Daelim Industrial Co., Ltd. | Seoul, Korea |
| Dames & Moore | Seattle, Washington |
| Dames & Moore | Los Angeles, California |
| Dasan Consultants Co., Ltd. | Seoul, Korea |
| Dente Engineering, P.C. | Watervliet, New York |
| Department of Water Resources | Sacramento, California |
| Diaz Yourman & Associates | Tustin, California |
| DMJM+HARRIS | New York, New York |
| DongIl Engineering Consultant Co. | Seoul, Korea |
| Dowl Engineers | Anchorage, Alaska |
| DoWoo Engineers, Inc. | Seoul, Korea |
| Drexel University | Philadelphia, Pennsylvania |
| Earth Consultants, Inc. | Bellevue, Washington |
| ECS Limited | Chantilly, Virginia |
| Electrowatt Infra Asia | Taipei, Taiwan |
| ENOVA Engineering Services | Walnut Creek, California |
| ESCO Eng. & Consultant Co., Ltd. | Seoul, Korea |
| F&ME Consultants | Columbia, South Carolina |
| FMSM Engineers | Lexington, Kentucky |
| French & Parrello Associates | Holmdel, New Jersey |
| FUNVISIS | Caracas, Venezuela |
| G. d'Annunzio University | Chieti Scalo, Italy |
| GEI Consultants, Inc. | Winchester, Massachusetts |
| General Engineering | Charleston, South Carolina |
| Geo Design, Inc. | Portland, Oregon |
| Geo Solutions, Inc. | San Luis Obispo, California |
| Geo/Environmental Associates, Inc. | Knoxville, Tennessee |
| Geocon, Inc. | San Diego, California |
| GeoEngineers, Inc. | Redmond, Washington |
| Geo-Logic Associates, Inc. | Diamond Bar, California |
| Geophysics-RWTH Aachen | Aachen, Germany |
| Georgia Institute of Technology | Atlanta, Georgia |
| GeoSoils, Inc. | Van Nuys, California |
| Geosoluciones, Ltd. | Syracuse, New York |
| Geotechnical Resources, Inc. | Beaverton, Oregon |
| Golder Associates Pty Ltd. | Perth, Australia |
| Golder Associates, Inc. | Anchorage, Alaska |
| Golder Associates, Inc. | Oakland, California |
| Gregory Geotechnical | Fort Worth, Texas |
| Ground Engineering Solutions, Inc. | Taylors, South Carolina |
| Hakyong Engineering Co. | Seoul, Korea |
| Han-Gu Engineering Co., Ltd. | Seoul, Korea |
| Han-Padron Associates | New York, New York |
| Hanseo University | Seosan-City, Korea |
| Hart Crowser, Inc. | Seattle, Washington |
| Harza Engineering | Oakland, California |
| Heller and Johnsen | Stratford, Connecticut |
| Horizon Consultants | New York, New York |
| HWA GeoSciences, Inc. | Lynnwood, Washington |
| Hyundai Engineering and Construction | Seoul, Korea |
| IGES, Inc. | Salt Lake City, Utah |
| IIEES | Tehran, Iran |
| Imbsen & Associates, Inc. | Sacramento, California |
| Imperial College | London, United Kingdon |
| Incheon University | Incheon City, Korea |
| INGEOMINAS | Bogota, Colombia |
| Institut Cartografic de Catalunya | Barcelona, Spain |
| Institute for Geotechnical Engineering | Zurich, Switzerland |
| Institute of Geotechnics | Zurich, Switzerland |
| Instituto Mexicano del Petroleo | Atepechuacan, Mexico |
| IRIS Mednarodna Trgovina | Llubjana, Slovenia |
| Istanbul Technical University | Istanbul, Turkey |
| Jonathan D. Bray | Walnut Creek, California |
| Kaycie Geoconsultants, Inc. | Seoul, Korea |
| King County DOT | Seattle, Washington |
| King Saud University | Riyadh, Saudi Arabia |
| Kleinfelder Southeast, Inc. | Greensboro, North Carolina |
| Knight Piesold, Ltd. | Vancouver, British Columbia, Canada |
| Kookmin University | Seoul, Korea |
| Korea Institute of Geoscience and Mineral | Daejeon, Korea |
| Kunil Engineering | Seoul, Korea |
| Langan Engineering and Environmental Services | Elmwood Park, New Jersey |
| Layne Christensen Company | Irvine, California |
| Lindbergh & Associates | Charleston, South Carolina |
| M.K. Yegian | Lexington, Massachusetts |
| Malcolm Pirnie, Inc. | White Plains, New York |
| Middle East Technical University | Ankara, Turkey |
| Mine Safety and Health Administration | Denver, Colorado |
| Mine Safety and Health Administration | Pittsburgh, Pennsylvania |
| National Center for Research on Earthquake Engineering | Taipei, Taiwan |
| National Observatory of Athens | Athens, Greece |
| Nevada DOT | Carson City, Nevada |
| New York City Transit Authority | Brooklyn, New York |
| New York DOT | Albany, New York |
| Nihon Denshi Kiki Co., Ltd. | Kagawa, Japan |
| Northeastern University | Boston, Massachusetts |
| Noteby As | Oslo, Norway |
| Oregon State University | Corvallis, Oregon |
| Pacific Geotechnical Engineers, Inc. | Honolulu, Hawaii |
| Parikh Consultants, Inc. | Milpitas, California |
| Parsons Brinckerhoff | New York, New York |
| Parsons Brinckerhoff International, Inc. | Hsin-Tien City, Taiwan |
| Paulus, Sokolowski & Sartor Engineering, LLC | Warren, New Jersey |
| PB Merz & McLellan Pte Ltd | Singapore, Singapore |
| Philippine Institute of Volcanology and Seismology | Quezon City, Philippines |
| Politecnico di Torino | Turin, Italy |
| Polytechnico di Bari | Bari, Italy |
| Pontificia Universidad Catolica Del Peru | Lima, Peru |
| Port of New York & New Jersey | New York, New York |
| Professional Service Industries, Inc. | Lombard, Illinois |
| Purdue University | West Lafayette, Indiana |
| Risk Management Solutions | Newark, California |
| Rowan University | Glassboro, New York |
| S&ME, Inc. | Columbia, South Carolina |
| Saman Engineering | Gwachon City, Korea |
| Sambo Engineering | Seoul, Korea |
| Schnabel Engineering | West Chester, Pennsylvania |
| Seoul National University | Seoul, Korea |
| Shannon & Wilson, Inc. | Seattle, Washington |
| Shiraz University | Shiraz, Iran |
| SOC Engineering & Construction Co., Ltd. | Seoul, Korea |
| Southwest Research Institute | San Antonio, Texas |
| SRK-Robinson, Inc. | Burnaby, British Columbia, Canada |
| State of Alaska | Anchorage, Alaska |
| Stone & Webster, Inc. | Stoughton, Massachusetts |
| Stone & Webster, Inc. | Greenwood Village, Colorado |
| Studer Engineering | Zurich, Switzerland |
| Suelo - Estructura, S.C. | Guadalajara, Mexico |
| Sungmoon Info Center USA, Inc. | Flushing, New York |
| Taiwan Construction Research Institute | Taipei, Taiwan |
| TAMS Consultants, Inc. | New York, New York |
| Tarbiat Modarres University | Tehran, Iran |
| Tecnologie Avanzate Universita' Di Messina | Messina, Italy |
| Terracon | Salt Lake City, Utah |
| TESO Engineering Co., Ltd. | Seoul, Korea |
| The Louis Berger Group | East Orange, New Jersey |
| Tierra, Inc. | Raleigh, North Carolina |
| TNO-NITG | Utrecht, The Netherlands |
| Tricom, Inc. | Seoul, Korea |
| U.S. Bureau of Reclamation | Denver, Colorado |
| U.S. Department of Energy | Albuquerque, New Mexico |
| U.S. Department of Energy | Idaho Falls, Idaho |
| U.S. Geological Survey | Denver, Colorado |
| Universidad de Colima | Colima, Mexico |
| Universidad de Puerto Rico | San Jose, Costa Rica |
| Universidad de Puerto Rico | Mayaguez, Puerto Rico |
| Universidad de Puerto Rico | San Pedro, Costa Rica |
| Universidad Eafit | Medellin, Colombia |
| Universidad Nacional Autonoma de Mexico | Mexico City, Mexico |
| Universita Degli Studi Di Napoli Federico | Naples, Italy |
| Universita Della Calabria | Calabria, Italy |
| Universita' di Firenze | Florence, Italy |
| Universita di Messina | Messina, Italy |
| Universitaet Karlsruhe | Karlsruhe, Germany |
| Universite du Quebec | Montreal, Quebec, Canada |
| University Nova de Lisboa | Lisbon, Portugal |
| University of Alaska | Fairbanks, Alaska |
| University of British Columbia | Vancouver, British Columbia, Canada |
| University of California | Davis, California |
| University of California | Berkeley, California |
| University of Canterbury | Christchurch, New Zealand |
| University of East London | London, United Kingdom |
| University of Illinois | Urbana, Illinois |
| University of Maryland | College Park, Maryland |
| University of Mississippi | University, Mississippi |
| University of Rome "La Sapienza" | Rome, Italy |
| University of South Carolina | Columbia, South Carolina |
| University of Tennessee | Knoxville, Tennessee |
| University of Texas | Austin, Texas |
| University of Tokyo | Tokyo, Japan |
| University of Utah | Salt Lake City, Utah |
| University of Wales | Swansea, Wales, United Kingdom |
| URS Greiner WCC | Wayne, New Jersey |
| USDA Forest Service | Missoula, Montana |
| Vector Engineering, Inc. | Grass Valley, California |
| Wartsila North America, Inc. | Annapolis, Maryland |
| Washington State University | Pullman, Washington |
| Weidlinger Associates, Inc. | New York, New York |
| Wilbur Smith Associates | Columbia, South Carolina |
| Womack & Associates | Billings, Montana |
| Woodward-Clyde (NZ) Ltd. | Auckland, New Zealand |
| WPC | Mt. Pleasant, South Carolina |
| Yongma Engineering Co,. Ltd. | Seoul, Korea |
| Yonsei University | Seoul, Korea |
| Yooshin Engineering Corporation | Seoul, Korea |
| Zeiser Kling Consultants, Inc. | Santa Ana, California |
