• Accurate Testing Labs, LLC
  

• Acer Engineers & Consultants, Inc.
  

• Adaptive Technologies
  

• Adrian Brown Consultants, Inc.
  

• Advanced Measurements & Controls
  

• Advanced Resource Mangment Group Inc.
  

• Aeration Industries International, Inc.
  

• Aires Consulting Group, Inc.

• Altren Corporation
  

• Ambient Water Treatment Consulting,Inc.
  

• American Coastal Coalition
  

• American Water and Energy Savers, Inc.

• Apprise Technologies
  

• Aquacraft, Inc.
  

• Aquatic Ecosystem Sciences, LLC
  

• Aquatic Plant Management
  

• Aquatic and Wetland Company
  

• Atmoswater Research

• BRACO Resource Services

• Belt Collins Hawaii

• Bert P. Krages II, Attorney at Law
  

• Black & Veatch
  

• C&S Engineers, Inc.

• CHRISTENSEN ASSOCIATES INC.
  

• Campbell and Associates
  

• Carter & Burgess, Inc.

• ClearWater Industries
  

• Close Environmental Consultants
  

• Commonwealth Biomonitoring
  

• Commonwealth Technology, Inc.
  

• Compass Environmental, Inc.
  

• Compliance, Inc.
  

• Computer Assisted Development, Inc.
  

• Consoer Townsend Envirodyne

• Converse Consultants Southwest, Inc.
  

• Crawford, Murphy & Tilly, Inc.

• Daniel B. Stephens & Associates, Inc.
  

• David Evans and Association, Inc.

• E & M Engineers and Surveyors PC
  

• E P Aeration
  

• EARTHWARE

• Economic and Engineering Services, Inc.

• Engineering Resource, Inc.
  

• Enviro-Drain, Inc.
  

• EnviroDesign, Inc.
  

• Environmental Business International
  

• Environmental Concern Inc.

• Environmental and Petroleum Consulting, LLC
  

• Envirosmith Engineering, Inc.
  

• Errol L. Montgomery & Associates, Inc.

• Forensic Analytical Specialities, Inc
  

• Forest Technology Systems Inc.
  

• GEOSAN Natural Resources Co Inc
  

• GKY & Associates Inc.

• Geo-Core
  

• Geoconsultants, Inc.
  

• Geomatrix Consultants, Inc.
  

• George Butler Associates, Inc.--Engineers - Architects
  

• Global Dynamics
  

• Global Water Instrumentation
  

• Greenhorne & O'Mara

• Gulf Environmental Science & Technology, Inc.

• HANSEN, ALLEN & LUCE, INC.

• Hazen and Sawyer, P.C.
  

• Henz Meteorological Services

• Homeyer Consulting Services, Inc.

• HydroSOLVE, Inc.
  

• IGENIERIA DE SISTEMAS NATURALES
  

• Inter-Fluve, Inc.
  

• International Institute for Infrastructural, Hydraulic and Environmental E ngineering , Inc.

• J. E. Edinger Associates, Inc.
  

• JBS Energy, Inc.
  

• JoDAn Technologies, Ltd.
  

• John Olaf Nelson - Water Resources Mgt.
  

• Kennedy-Jenks Consultants
  

• Lamont, VanDeValk Engineers, P.C.
  

• Limno-Tech, Inc.

• MASAR Technologies, Inc.
  

• MECO Engineering Company
  

• METALOGIC TECHNOLOGIES INC.

• Malcolm Pirnie, Inc.

• Management Pratice Inc.
  

• Marin Environmental
  

• Marinco Bioassay Laboratory, Inc.

• McNamee, Porter & Seeley, Inc.
  

• Medine Environmental Engineering, Inc.
  

• Millennium Science & Engineering, Inc.
  

• Milton Roy Flow Control Division

• National Environmental Training Center for Small Communities

• Northwest Hydraulic Consultants
  

• NovaTech Environmental, Inc.
  

• Ocean of Dreams International

• Ogden Environmental and Energy Services Company

• Oller Engineering, Inc.
  

• Olver, Incorporated

• PACER Consultants

• Pan America Environmental

• Peterson Environmental Consulting, Inc.
  

• Philip Williams & Associates, Ltd.

• Planning and Management Consultants, Ltd
  

• Pocket Water Inc.
  

• ProMinent Fluid Controls, Inc.

• Puckorius & Associates, Inc.
  

• RDR Consultores Associados

• S.P.Cramer & Associates, Inc.

• S.S. Papadopulos & Associates, Inc.

• States West Water Resources Corporation

• Stone, Joca & Mahoney, Inc.

• Streamline Environmental
  Sunmotor International Ltd.

• Sustainable Strategies

• Trans Mountain Consulting Co.
  

• Trident Environmental Services & Technologies
  

• Triegel & Associates, Inc.
  

• Turner Environmental Consultants
  

• Ulrick & Associates
  

• WATERMASTERS, INC.
  

• Walker Consultants, Ltd.
  

• Wardrop Engineering Inc.
  

• Water Finance and Environment (Ambiente y Finanzas del Agua)
  

• Water Resources
  

• Water Resources Management Inc.
  

• Watershed Consultants
  

• Watershed Resource Consultants
  

• Wayne Perry, Inc.
  

• Western Management Services
  

• Weston & Sampson Engineers, Inc.
  

• Western Water Consulting, Inc.
  

• Western Water Consulting, Inc.
  

• Wilson, Miller, Barton & Peek Inc.
  

• World Engineers Corporation (Geoconsultindia)
  

• XP Software, Inc
  

• Zephyr Environmental Corporation
  

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UWIN is funded by USGS and supported by SIUC,

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Updated: 3-30-04