AGE Consultants Pty Ltd.

Anchor Environmental

An-Najah National University, Nablus, Palestine

Apex Companies LLC

AquaResource, Inc.

AquaTerra

Arcadis G&M, Inc.

Arizona State University

Arrow Environmental

Beijing Normal University, College of Water Sciences

Blackstone Consulting

Brooklyn College, City University of New York

California Department of Toxic Substances Control

California State Water Resources Control Board

California State University, Long Beach

Camp Dresser & McKee, Inc.

Cardiff University, United Kingdom

Central Ground Water Board, Ministry of Water Resources, Kolkata, India

Dirección Provincial de Agua y Saneamiento, Cordoba, Argentina

Ecological Engineering Institute

Erickson Groundwater Service Co.

Escuela de Geología -Universidad Nacional de Córdoba-Rª Argentina

Gemini Geotechnical

GeoHydroCycle, Inc.

Geomatrix Consultants

George Washington University

Geo Pollution Technologies

GeoTrans

Golden State Environmental

GSC | Kleinfelder

Idaho National Engineering Laboratory

Indian Institute of Technology Kanpur

International Groundwater Resource Center

Kolej Universiti Teknologi Tun Hussein Onn

Lane Consulting Pty Ltd

Loudon Public Works

Massachusetts Institute of Technology

Mersin University, Turkey

NASA Ames Research Center

New Brunswick Community College

Norfolk Ram Group

North Carolina Dept. of Environment and Natural Resources

Pacific Northwest National Laboratory

Pine and Swallow Associates

Resource Control Associates

Rhode Island Department of Environmental Management

Science Applications International Corporation

San Diego State University

São Paulo State University

Sir Sandford Fleming College

S.S. Papadopulos & Associates, Inc.

Stantec

TCG

TerraQuest Environmental Consultants

Tetra-Tech

United States Geological Survey

Université Michel de Montaigne

University of Arizona

University of Arkansas, Dept. of Geosciences

University at Buffalo

University of Sheffield

University of Waterloo

URS Corp.

US Geological Survey, Reston Virginia

US Environmental Protection Agency Region 3

US Environmental Protection Agency Region 7

Vanasse Hangen Brustlin, Inc.

VHB

Vrije University, Amsterdam

Water Management Consultants

Western Resource Management