- Aanderaa Instruments A/S - Manufacture of oceanographical, meteorological and hydrological data collecting instruments. View data in realtime from the automatic weather station on Bergen's highest mountain, Mount Ulrik.
- Blackburn Sampling, Inc. - Offers U.S. EPA referenced, patented Coliwasa samplers and accessories for representative sampling of wastes.
- C. C. Lynch & Associates, Inc. - Manufacturer's representative for several makers or environmental and meteorological instruments, primarily in the southeastern U.S. (Sales and service.)
- CONBAR Environmental Products - Manufactures a complete line of environmental and industrial sampling products and supplies.
- Eijkelkamp Agrisearch Equipment - Manufacturer and supplier of a range of equipment for soil, water, plant and climate research, including environmental sampling equipment for residual substances and chemicals. Based in Netherlands.
- Envirent Corporation - Offers rental, servicing, and sales of environmental products used for monitoring air, water and soil quality.
- Enviro-Tech Services - Sales, rental and repair of sampling instruments and equipment used in environmental, geotechnical and remediation projects.
- Environmental Analytical Systems - Canadian distributor for environmental monitoring instruments for air emissions, indoor air, noise, water, dust, and other industrial applications.
- Environmental Equipment & Supply - Offers a selection of grundfos pumps, well pumps, dissolved oxygen, geoprobes, instruments, and safety equipment. Also offers rentals.
- Environmental Restoration Group, Inc. - Rents radiological detection equipment as well as performing GPS/rad surveys, radon flux measurements, and HP consulting and services.
- Envitech - UK suppliers of environmental monitoring equipment to the water and other industries. Labels include Isco-Stip, Isco Inc., Applikon Dependable Instruments, bbe, EauxSys and Challenge.
- Equipco - Rentals, sales, and service of monitoring and sampling equipment for soil, air, and water.
- Fondriest Environmental - Distributor of environmental monitoring products and services. Includes list of products and repair services offered.
- Forestry Suppliers, Inc. - Products for outdoor research specializing in forestry, environmental science, surveying/engineering, horticulture, grounds maintenance, and educational products.
- Geneq, Inc. - Environmental Monitoring Catalog - Air and water samplers, bailers, soil sampling devices, flow meters, pH and conductivity meters, pumps, gas detectors, and other products for environmental work.
- Gradko International Ltd. - Offers apparatus for economical air and soil monitoring by low-cost passive diffusion tubes. Also tubing for peristaltic pumps.
- Icon Service Company - Gas detection and safety specialists offering products including ambient air monitoring equipment to detect and measure the presence of hazardous gases, hydration products to protect worker's health and to improve safety. Also offers services and training.
- Integrated Environmental Technology Group - Provides an asset data collection, analysis and information management service for the environmental and infrastructure sectors. Includes case studies and article library.
- Ivan Technologies, Inc. - Builds trail traffic counters -- electronic devices for monitoring trail use by hikers, mountain bikers, and other users.
- Kipp & Zonen Inc. - Manufacturer of environmental monitoring instrumentation, as well as a complete range of ISO and WMO class meteorological radiation sensors and accessories.
- KVB-Enertec - Produce software and hardware for continuous emissions monitoring systems . Includes product specifications, employment opportunities, and industry links .
- Novx Corporation - Provides real-time process environment monitoring control solutions and other ESC/ESD related instruments and services.
- P S Analytical Ltd - A UK based company specialising in the determination of mercury and the hydride forming elements at extremely low levels in soils, sediments and water. Suppliers of equipment to Environmental, Process, Chemical and Petrochemical Industries
- Pine Environmental Services Inc. - Rental and sales of environmental air and water monitoring and sampling equipment used by the environmental professional.
- Powertrol, Inc. - Supply flare monitoring and control systems. Includes dimensions, specifications and how it works diagrams.
- Remedios Environmental biosensors - Leading-edge biosensor technology to rapidly detect toxic substances on contaminated land. Also offers advice on all aspects of the development potential and value of contaminated land.
- Sami's Analytical Monitoring Instruments, Inc. - Environmental instrumentation rental, sales, service, and repair including source emissions, analyzers, monitors, CEM, heated lines, and gas conditioners.
- Sensor Technology Information Exchange - Online discussion forums and news/events listings for developers, users and vendors of environmental sensors. Intended to advance the development of sensors for use in the environmental field with hazardous waste cleanup.
- Sowacs: The Central Resource for Soil Moisture Measurement - Summary of methods and equipment suppliers for measuring soil moisture, leaf water potential, and related environmental parameters.
- Steptech Instrument Services Limited - Provide sales, service, technical support and hire for a wide range of scientific, industrial and analytical equipment
- Surechem Marketing Sdn Bhd - Malaysian seller and distributor of instruments for a diverse range of environmental and agricultural and sampling and analysis, including soil, surface and groundwater, crops, climate, and sewage.
- Titan Products Ltd - Offers environmental measurement sensors, controls, and monitoring devices that are used in the application of BMS Control Systems.
- Umwelt-Geräte-Technik Müncheberg - Implements for agriculture and forest economy, measuring devices for dumping grounds, acquistion of erosion processes as well as soil hydrology and pedology.
