USGS Water Resources Division- Campbell and Associates - C&A is a full-service consulting company built around Michael D. Campbell, P.G., P.H., Principal Hydrogeologist providing assistance to industry and legal community.
- The Centre for Petroleum and Mineral Law and Policy - Academic & Practical post-graduate studies in international water resources law & policy. LL.M, MSc., MBA in water resources law & policy.
- Desert Research Institute - Environmental research division of University of Nevada System focusing on air and water quality, atmospheric physics, geomorphology, ecosystem response to environmental change and archaeology.
- Duke University Center for Hydrologic Science is designed to provide a comprehensive framework for Ph.D. study in the hydrological sciences at Duke University.
- Edwards Aquifer Research and Data Center - The Center provides a public service in the study, understanding and use of the very fragile natural resource.
- Environmental HydroSystems - Water resources and environmental consulting firm that specializes in the analysis of hydrologic systems and in the development of software to support analysis.
- GeoEnviron CC - Geoenvironmental, Environmental, Hydrological & Geological Consultants
- Haestad Methods Home Page - Hydrology & Hydraulics Software and Continuing Education
- Hydrocomp, Inc. - a consulting firm specializing in hydrology and water resources.
- Hydrology Web (Hydrology-Related Internet Resources) - Large list of links related to the hydrologic sciences, organized under several categories and searchable by keyword.
- Hydroweb - Publishes world's first electronic hydrology journal
- Interactive Remote Instructional System (IRIS) - IRIS Program provides distance learning courses in Subsurface Hydrology and is connected to Wright State University's Center for Ground Water Management.
- Science Technology Associates - Scientific software development, field data collection, hydraulic simulation (finite element) for rivers, reservoirs, bays and estuaries.
- Scientific Software Group - Groundwater, Surface-Water, Air Pollution, and other Environmental Software
- Tirtaharapan system/hope hydrology - Hope Hydrology/company/reliable data on rainfall, discharge and evaporation increasingly needed for effective hydrological monitoring.
- Utah Water Research Laboratory - Utah Water Research Laboratory is a research institute of the Utah State University covering hydrology, groundwater, and environmental problems.
Global Environmental Services Ltd.
GES, Global Environmental Services Ltd. Is a full-service environmental firm specializing in the integrated water and wastewater management, including waste management, cleaner production and bioremediation, is your first address and single source for all your water and environmental needs. GES, specialized in planning, design, installation of water, waste and wastewater treatment facilities, Swimming pools & Renewable Energy, The company engages in the desalination of seawater and brackish water, natural, conventional and advanced wastewater treatment technologies, biosolids stabilization and effluent reclamation, application of special chemicals for water purification, operation and maintenance of landfills, water and wastewater treatment systems.
Clean Harbors
Solving tough problems through innovation and proven methodology. For more than 35 years, Clean Harbors has been providing comprehensive hazardous and non-hazardous waste management services to meet the needs of customers throughout North America. Clean Harbors leverages its specialized equipment, expertise, responsiveness and disposal assets across North America to provide turnkey Industrial and Field Services to our customers. Clean Harbors Oil, Gas and Lodging Services provide safe and effective practices and techniques to handle your oil and gas industry needs.