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AeroVironment, Inc. - specialties include unmanned air vehicles, electric and hybrid vehicle systems, distributed energy, environmental services, and atmospheric systems. Analine.com - provides environmental products and services. Apex Environmental, Inc. - providing compliance, pollution control, health and safety, air quality and laboratory services. Aqua Alliance - environmental treatment and services specializing in the fields of water, wastewater, solid and hazardous waste, and air quality services. Beak International Inc. - services include permitting and licensing, contaminated site investigations and remediation, environmental assessments, decommissioning and land redevelopment. Biodyne - manufactures products for environmental applications such as bioremediation, wastewater bioaugmentation, hydrogen sulfide control, grease reduction, plant growth enhancement, and composting. Clean Air Act Consulting LLC - services include air, water, and waste permitting and management, as well as safety audits, training, and program development. Clean-Start Properties Unlimited - a New England-based listing service for brownfield properties. Ecology and Environment, Inc. - providing services ranging from air quality management to wastewater treament design to clients worldwide. EMPE, Inc. - providing environmental management, assessment and remediation, and industrial health and safety services in Alabama, Kentucky, Tennessee and Virginia. EnSafe - environmental services ranging from air quality to pollution control and waste management Enviance - provides environmental health and safety (EHS) applications to streamline regulatory compliance and improve environmental information management. Environmental Management Consultants, Inc. - environmental management, remediation and industrial health and safety firm providing services to industries in the US, Canada, Puerto Rico, Mexico, Latin America and Europe. ETEC - manufacturer's representative organization, focused on water treatment, wastewater treatment, sludge handling, and air emission markets. First Environment, Inc. - specializing in environmental investigations and remediation, management systems, legal support, and mergers and acquisitions. Geomatrix Consultants, Inc. - works in the fields of engineering, applied environmental and earth sciences, air quality and toxicology, and risk assessment. Green Media Toolshed - mission is to provide media-related tools and information. GZA GeoEnvironmental Technologies, Inc. - services include pollution, waste, wastewater, and health and safety management. HAL Enterprises, Inc. - specializes in program management, engineering and environmental services, and information technology. Hatfield Group - services including assessment and monitoring, natural resource management, facility design and operation, and human resource development. Hazen and Sawyer, P.C. - providing natural resources, water, wastewater, solid waste and project management services in the Eastern US, Central and South America, and the Middle East. Heritage - Crystal Clean - environmental company providing parts cleaning, waste management, vacuum, oil collection, and absorbent products and services. Hillmann Environmental Company, Inc. - providing hazardous waste and pollution assessment and remediation, laboratory, IAQ and training services throughout the USA.	SOft14000 - includes ISO 14000 reference materials, software, books, and a database of ISO certified companies. LFR Levine Fricke - management, engineering, and consulting firm offering services for air, water, land, and hazardous materials. Liesch Companies - from designing and overseeing the construction of a wastewater treatment plant to investigating and remediating soil and groundwater impacts. Malcolm Pirnie, Inc - environmental engineers, scientists, and planners. McDowell & Associates - offering engineering, consulting, environmental, hydrogeological, and geotechnical services as well as construction testing, drilling, and well installation. Meredith/Boli & Associates, Inc. - professional services organization specializing in environmental science and engineering, regulatory affairs, and other aligned consulting services. Moore and Associates, Inc. - providing engineering, training, assessment and remediation, solvent recovery systems and other products. NES, Inc - offering a broad sprectrum of services, with an emphasis on hazardous and radioactive waste management. Onyx Environmental Services - provides solutions for all your hazardous waste transportation, treatment, and disposal needs. Organic Product Exchange (OPE) - business intelligence and product management e-commerce firm offering business to business solutions. P.E. LaMoreaux and Associates, Inc. - providing environmental services including geology, hydrology, engineering, environmental science, and archaeology. Pollutech Environmental Limited - providing corporate services, pollution and IAQ assessments, process audits, natural resource management, and lab services. Professional Service Industries, Inc. - provides pollution and hazardous materials management, geotechnical engineering, and construction testing services. Rescan International Inc. - biophysical inventories, impact assessments, risk evaluations and waste management assignments for the mining industry. Roy F. Weston, Inc. - services include air, water and waste management; assessment and remediation; and occupational health and safety services. SECOR International Incorporated - provides full-service environmental investigations and remediation services; has offices across the US, in Canada and the UK. SelfSource - provides CitraSure air treatment systems, disinfectants and cleaners, and FootFlex sports products. Solutions to Environmental Problems, Inc. - providing environmental consulting and engineering, health and safety and training solutions, as well as construction management. Sub-Tech, Ltd. - services including mining hydrogeology, solid waste management, remediation and UST management. Technos Inc. - specializes in subsurface site characterization. TN & Associates, Inc. - civil engineering & environmental services. Vivendi Environnement (NYSE:VE) - holder of water, waste management, energy, and transportation operations. Woodward-Clyde - provides pollution, solid, and hazardous waste management, as well as civil and geo-technical engineering services.