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- United States Forest Service, Louisiana
- Nara National Research Institute for Cultural Properties, Nara, Japan
- National Park Service, Nebraska
- CNR National Laboratories, Italy
- National Institute for Cultural Properties, Korea
- University of Mississippi, Dept of Anthropology
- University of Georgia, Dept of Geology/Geophysics
- University of Alabama , Moundville
- Tenri University, Japan
- Spectrum Geophysics, California
- Radar Solutions International, Massachusettes
- Earth Measurement Corporation, Houston
- Cal State University Long Beach, Dept of Anthropology
- The Lamar Institute, Georgia
- SOT Prospeccio Arqueologica, Barcelona, Spain
- Fiske Center for Archaeological Research, University of Massachusettes
- GEOVision Geophysical Services, California
- United States Army Corps of Engineers, Vicksburg MS
- ASM Affiliates, Carlsbad CA
- Brockington & Associates, South Carolina
- INSET s.r.o., Czech Republic
- Confederated Tribes of the Umatilla Indian Reservation, Oregon
- Dept of Geology, Wofford College, South Carolina
- Seminole Tribe of Florida
- Archaeo-Geophysical Association, Pheonix, Arizona
- Posselt & Zickgraf Prospektionen, Germany
- Department of Antiquities, Baden-Wurttemberg, Germany
- Dept of Geology, Southern Illinois University
- Radarteam, Sweden
- Universidad Politécnica de Cataluña, Barcelona, Spain
- Geophysics and Geology Branch, California Dept of Tranportation
- Museum of Anthropology, University of Kentucky
- Department of Archaeology, Anthropology & Forensic Science, Bournemouth, Univeristy, UK
- Dept of Geology and Geophysics, San Diego State University
- Anthropology Department, Indiana University of Pennsylvania
- Rettew Associates, Lancaster, Pennsylvania
- School of Humanities, University of South Hampton, UK
- Center for Near Surface Geophysics & Archaeological Prospection, Dokuz Eylul Univ. Turkey
- Historic Preservation Dept, Choctaw Nation of Oklahoma
- On-Site GPR, Sacramento
- Idaho National Laboratory, Idaho Falls
- Southeastern Archaeological Research Inc, Jonesville, Florida
- Munin spf., Faroe Islands
- Open Ground, South Africa
- GeoStudi, Livorno, Italy
- Copernico, S.r.l., Montalcino, Siena, Italy
- Archaeology Dept., University of Science and Technology, Trondheim, Norway
- CAI Archaeometry and Analysis, University Complutense of Madrid, Spain
- GeoRadar Co., Ltd., Korea
- Laboratoire Central des Ponts et Chaussées, France
- Heritage Preservation and Interpretation Inc., Steamburg, NEW York
- Energy and Environment Research Laboratory, ITRI, Taiwan
- VISTA Centre, Birmingham Archaeology, University OF Birmingham, UK
- Tecno Terra, Jalisco, Mexico
- School of Geography and Earth Sciences, McMaster University, Canada
- OYO Corporation, Japan
- Poyry Infra GmbH, Austria
- Earth Science and Resource Engineering, CSIRO, Australia
- School of Social Science, University of Queensland, Australia
- Wessex Archaeology, UK
- Alliance for Integrated Spatial Technologies, University of South Florida
- Maverick Inspection, Canada
- Subtronic Corporation, Martinez, California
- Consiglio Nacionale delle Ricerche CNR, Leece
- University Konstatina Filozofa, Slovakia
- TerraDat Ltd, United Kingdom
- Cultural Resource Analysts Inc., Lexington, Kentucky
- The Chickasaw Nation, Oklahoma
- Central Florida Locators, Bushnell, Florida
- Adapis Georadar Teknik AB, Sweden
- Echo GPR Services, Paola, Kansas
- Stratascan Ltd., Worcestershire, UK
- Dept of Physics, University of Colorado, Denver
- University of Pisa, Italy
- University of Bologna, Italy
- Geotec Engineering and Environmental Geophysics Ltd, Israel
- Southeast Archaeological Center, National Park Service, Florida
- Kenaitze Indian Tribe, Alaska
- Geoscanners AB, Sweden
- Geoscience Consulting LLC, Montgomery, Alabama
- Dept of Geology and Environmental Sciences, College of Charleston, SC
- Geometrik Muhendislik, Turkey
- Dept of Civill Engineering, The University OF Hong Kong
- Rose Geophysical Consultants, Orkney, UK
- Dept of Geoinfomatics, The Hong Kong Polytechnic University
- Dept of Soil and Crop Sciences, Texas A&M University
- Dutch National Police Agency KLPD, Netherlands
- Geozone Asesores S.L., Valencia, Spain
- GEARH d.o.o., Slovenia
- Analyse Geophysique Conseil , France
- WSP Civils, Sweden
- Murphy Survey Ltd., Ireland
- Dept of Anthropology, California State University Dominguez Hills
- Dept of Anthropology, University of Georgia, Athens
- Dept of Geosciences, East Tennessee University
- Dept of Anthropology, University of Northern Colorado
- Nakano Technology Co., Ltd., Saitama, Japan
- Dudek and Associates, Encinitas, California
- TAG Research by Sturm Inc, New Mexico
- Dept of Anthropology, Washington University of St Louis, Missouri
- Pegasus Environmental, New York
- Dept of Archaeology, Waseda University, Japan
- Geoscan, Canada
- Dept of Geography and Earth Science, Shippensburg University, Pennsylvania
- RPS Group, Queensland, Australia
- SC Gauss SRL, Romania
- United States Army Corps of Engineers, Omaha, Nebraska
- Sakurakoji Denki, Osaka, Japan
- Dept of Archaeology, La Trobe University, Melbourne, Australia
- Parsons Overseas (P) Limited, India
- Center for Advanced Spatial Technologies, University of Arkansas
- Daeil Enc, Korea
- Murphy Surveys, United Kingdom
- Edenbros LLS, Saint James, Missouri
- GPR Pro, UK
- Dept of Civil Engineering, Chung Hua University, Taipei, Taiwan
- Reveal Infrastructure, NEW Zealand
- Dept of Geosciences, Mansfield University, Pennsylvania
- Target Geophysics, Belgium
- Mercian Archaeological Services CIC, Nottingham, United Kingdom
- Korea Polar Research Institute
- Sambo GeoTek, Korea
- Coastal Environments Inc., New Orleans, Lousisiana
- Draig Geoscience, Perth, Australia
- Fort Bend County Historical Commission, Texas
- Public Works Research Institute, Ibaraki, Japan
- Bureau of Cultural Heritage, Ministry OF Culture, Taiwan
- Piotr Wroniecki, Warsaw, Poland
- Dept of Engineering, National Chiao Tung University, Taiwan
- Atlas Geophysical, United Kingdom
- Terra Marine, Greece
- Geomecca, Korea
- GHD, Hobart, Australia
- Logan Simpson Inc., Tempe, Arizona
- RADAR Geoservizi s.a.s., Torino, Italy
- United States Army Corps of Engineers, Sacramentro, California
- DB International GmbH, Bremen, Germany
- Geoprospect S.A. DE, C.V., Nuevo Leon, Mexico
- Round Rock Geophysics, Austin, Texas
- Michalis Poultsidis, Larisa, Greece
- ScanPlus Locating Ltd, Sooke, BC, Canada
- French National Institute for Preventive Archaeology - INRAP
- School of Science and Technology, University of Camerino, Italy
- Glen Dash Foundation for Archaeological Research
- National Geographic Society, Washington D.C.
- ATS International Inc., Christiansburg, Virginia
- Nordic Volcanology Center, Institute of Earth Sciences, University of Iceland
- Sumet Yerbilimeri Ltd., Izmir, Turkey
- ESG Infrastructure Services, United Kingdom
- National Park Service, Lowell, Massachusetts
- Dept of Anthropology, Texas STATE University
- Center for Northeast Asian Studies, Tohoku University, Sendai, Japan
- Geomaster Corporation, Quezon City, Philippines
- David Charles Nobes, New Zealand
- Electronics and Telecommunications Research Institute, Korea
- EGS (Asia) Limited, Hong Kong
- G. I. Engineering Co., Ltd., Korea
- Department of Archaeology, Flinders University, Adelaide, Australia
- Serramur & Asociates, PC, Boone, North Carolina
- Proceq, Switzerland
- Dept of Earth Sciences, University of Florence, Italy
- ScanTech Geoscience, Ireland
- Dept of Earth Sciences, University of Memphis, Tennessee
- Gyula Forster National Centre for Cultural Heritage Management, Hungary
- Anomali Jeoteknik Muhendislik Hizm Ltd, Turkey
- GeoPat, France
- BHP Billiton, Canada
- Geoside Geofisica snc, Italy
- Higashi Nippon International University, Japan
- Institute of Archaeology, Monuments & Art History, University of Bamberg, Germany
- Impulse Radar, Sweden
- Institute of Archaeology, University College London
- Sherpa ENC co., ltd., Korea
- Gel Geophysics, Charleston, South Carolina
- Terracon, Oklahoma City, OK
- Umut Basoglu, Turkey
- Dept of Geography and Anthropology, University of Wisconsin - Eau Claire
- Dept of Archeology, University of Southampton
- Concrete GPR LLC, Albany, Oregon
- Florida Geological Survey, Tallahassee, Florida
- Earth Dynamics LLC, Portland, Oregon
- Horsley Archaeological Prospection LLC, Dekalb, Illinois
- Utility Mapping Services Inc, Helena, Montana
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- Southern Geophysical Ltd, Christchurch, NEW Zealand
- Dianex, France
- Dept of Geosciences, Austin Peay STATE University, Tennessee
- Dept of Historical Studies, Gothenburg University, Sweden
- National Institute of Water and Atmospheric Research, NIWA, New Zealand
- Ancient History and Archaeology, University of Leicester, United Kingdom
- GeoWave Solutions, Cumming, Georgia
- Scadin Surveys Ltd, Belfast, Northern Ireland
- GeoRADAR NRW GmbH, Germany
- Dept of Civil Engineering, Unversity of Texas AT Arlington
- Historic Environment Scotland, United Kingdom
- Ayed Eid Al Osaimi Geotechnic Co., Saudi Arabia
- Metopolitan Police, United Kingdom
- Busan Metropolitan City, Korea
- Civil Engineering, University of Ositek, Croatia
- School of Archaeology, University of Oxford, United Kingdom
- Dept of Antrhopology CRAG, Colorado STATE University, Ft Collins
- 3DSoil, Belgium
- Corporacion Ambiental de Mexico, S.A. de C.V.
- Chien Hsin University of Science AND Technology, Taiwan
- State Geological Survey, University of Illinois, Champaign
- Dept of Minerals and Mining Engineering, Virginia Tech
- Dept of Anthropology, University of South Florida
- Cemetery Coordinator, Oklahoma
- Envirolift, Canada
- Instituto Politecnico Nacional, Mexico
- Municipality of Essen, Germany
- WSP Canada Inc, Calgary
- Paradigm Consultants Inc, Houston, Texas
- Instituto Colombiano de Antropologia e Historia, ICANH, Bogota
- Graph'it Studio, Warsaw, Poland
- United States Geological Survey, Reston, Virginia
- United Nations Development Program - Damascus, Syria
- Brian Whiting, PhD LEG, Seattle, Washington
- Dept of Natural Resources, Washington STATE
- Dept of Earth Sciences, The Hebrew University, Israel
- Maek Consulting PTE LTD, Singapore
- GeoSense, Bogota, Colombia
- Masarykova Univerzita, Czech Republic
- Opdida SL, Spain
- Florida Bureau of Archaeological Research, Tallahassee
- John Wood Group PLC, British Columbia, Canada
- GeoView Inc, Florida
- Faculty of Engineering, University of J. J. Stotamayer, Croatia
- Fred W. Birmingham, Jackson, TN
- Diamond Concrete Sawing, Michigan
- Ingenieria Agustin Omar Jaque La, Chile
- Texas Cemetery Restoration, Dallas
- Geosurveys, Angola, Africa
- DSTL, UK
- AF Consult, Sweden
- Byram Archaeological Consulting, LLC, California
- Department of Geology, University of Peshawar, Pakistan
- American Geotech Inc, Wyomissing, Pennsylvania
- American Engineering, USA
- Aero 360 Solutions, Manila, Philippines
- Alpha Geosurvey Ltd, Aberdeen, United Kingdom
- Astellog, France
- Universidade Federal Rio Grande do Norte, Brazil
- Department of Geosciences, University of Massachusetts, Amherst
- Belgian Army, Belgium
- Virtual Wonders, Delafield, Wisconsin
- Department of Geography, Texas A&M University
- School of Geosciences, University of South Florida
- Universal Engineering Sciences, USA
- Environmental Protection Agency, Victoria, Australia
- RSK Group Ltd, United Kingdom
- College of Agriculture, University of Nevada, Reno
- Jorge Alarcon, Archaeologist, Colombia
- Christmas Island Phosphates, Australia
- Zetica Ltd, United Kingdom
- Universidad Nacional de San Antonio Abad del Cusco (UNSAAC), Peru
- Murphy Surveys, Cork, Ireland
- GB Geotechnics Ltd, United Kingdom
- Korea Cultural Heritage Foundation, Korea
- GroundTruth Ag, North Carolina
- United States Army Corps of Engineers, Alexandria, Virginia
- Petersburg National Battlefield Park, National Park Service, Virginia
- School of Environment, The University of Auckland, New Zealand
- Dept of Geology and Geological Engineeering, University of Mississippi
- Georadar, Estonia
- University of California, San Diego
- Fort Peck Tribes, USA
- Nordgeo, Poland
- Locators Pty Ltd, Australia
- Credal AG, Switzerland
- Utility Mapping Pty Ltd, Australia
- Beobom, The Netherlands
- GTStudio, Italy
- Department of Engineering, Sungkyunkwan University, Korea
- L & T Constructions, India
- University of Pennsylvania Museum of Archaeology and Anthropology
- EPRI, Charlotte, North Carolina
- EnviroSytems Management Inc., Flagstaff, Arizona
- Zimer Muhendislik, Turkey
- Called 2 Rescue, Rossville, Tennessee
- The Cyprus Institute, Nicosia, Cyprus
- Quality Services Inc., Rapid City, South Dakota
- Groupe Developpment de Mesures Physiques, EDF, France
- Natural Sciences and Psychology, Liverpool John Moores University, UK
- DMT-Group, Canada
- Geomatics, University of Applied Sciences and Art Northwestern Switzerland
- United States Army Corps of Engineers, Ft Hood, Texas
- Geo-Engineering and Testing, Inc., Guam
- G Map LLC, Oman
- GEOCND, Italy
- Geopartner, Denmark
- Surface Search Inc, Alberta, Canada
- School of Engineering, Roger Williams University, Rhode Island
- Atkinson-Noland Associates, Consulting Engineers, New York
- Terratec AS, Norway
- Vanasee Hangen Brustlin Inc, Georgia
- Olson Engineering Inc, Colorado
- Archaeology, University of Turku, Finland
- Digital Real Estate Asset Management, Ft Lauderdale, Florida
- Dept of Mechanical and Construction Engineering, Northumbria University, Newcastle, UK
- Dept of Geosciences, University of Alaska, Fairbanks
- Reynolds International Ltd, UK
- Orbital Engineering Inc, Pittsburg, PA
- Geophysique Sigma, St-Bruno, Canada