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| LMNO Engineering, Research, and Software Providers of research, software and engineering for groundwater, hydrology and water and piping systems. | |
| Parameter Estimation, Inc. Provides parameter estimation and optimization modeling software (PEST) for bioremediation, water quality, water pollution and hydrogeologic disciplines. | ||
| PreWin Provider of software for industrial pretreatment program information management systems. | ||
| AllMax Professional Solutions Supplier of operational and maintenance software for municipal and industrial wastewater and water treatment facilities. | ||
| Scientific Software Inc. Offers Groundwater Vistas, an advanced groundwater model design and analysis package. | ||
| USGS Water Resources Applications Software Provider of free software and related material for public use in the advancement of science. | ||
| EnviroSim Associates Manufacturer of computer software for the analysis and design of wastewater treatment plants. | ||
| Helix Technologies Provider of pipe network analysis software for liquids, slurries and gasses. | ||
| Analytical Data Services Ltd Provider of computer network consulting, specializing in information technology and scientific services. | ||
| Pizer, Inc. Civil engineering software company specializing in hydraulic analysis of municipal sewer systems, and earthwork cut and fill quantities calculations. | ||
| D-Soft LLC Markets a toolkit for hydraulics (fluid power) professionals. | ||
| Advanced Engineering Software Distributes hydrologic software. | ||
| OPS Systems Provider of data management software and preventive maintenance software for water, wastewater and energy plant operations. | ||
| Treat-wastewater.com Developers of modeling and control software for wastewater treatment specialists. | ||
| Haestad Methods Provider of hydrology and hydraulics modeling software for worldwide clients. | ||
| Aquatic Services Provider of instrumentation for municipal and industrial water and wastewater treatment, including flow meters, ultrasonic transducers and chlorine analyzers. | ||
| Advanced Groundwater and Environmental Software Provider of ground water and enviornmental software. | ||
| Enviromega Provider of services and software products for the wastewater and water treatment sector, including modeling contaminant, modeling disinfection and biofiltration. | ||
| MASS Group: Water/Wastewater Management Systems Distributes a full line of industrial automation software and hardware to monitors, supervises and control water/wastewater processes. | ||
| Hazen and Sawyer An employee-owned professional corporation providing consulting services in environmental engineering and science to the public and private sectors since 1951. | ||
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