| Aanderaa Instruments - Instruments and Sensors for Land, Sea and Air |
| Adcon Telemetry GmbH - Provide meteorological sensors, but specialty is wireless telemetry. |
| Advanced Designs Corp. - Doppler Weather Radar and Weather Data Displays, Doppler Radar, Weather Radar. |
| Advanced Sensing Products - ASP is a manufacturer standard PRTs, precision RTDs, and different types of thermocouples. |
| Alltec Corp. - A manufacturer of lightning protection and grounding systems. |
| AllWeatherInc - Weather sensors, environmental monitoring systems, data collection products, display and recording devices. |
| Applied Technologies, Inc. - Scientific instrumentation, software, and systems for meteorological and atmospheric research. |
| Atmospheric Radar Systems (ATRAD) - Atmospheric Radar systems for scientific and commercial applications. |
| Axinum Innovations & Technologies - Manufacture of Siphoning Rain Gauges and Data Loggers |
| B. K. Consimpex - Satellite remote sensing and metereological system integrators in India. |
| Belfort Instruments - Instruments include Wind, Precipitation, Temperature, Humidity, Pressure, and Visibility. |
| Biral - Manufacturer of visibility and present weather sensors along with other wind and precipitation sensors. |
| BOLTEK - A leader in affordable thunderstorm tracking technology and Lightning Detection Systems. |
| Campbell Scientific Ltd. - Weather monitoring products, including automated, research-grade weather stations. |
| Casella CEL - Manufacturer and supplier of meteorological equipment, weather stations, rain gauges, solar equipment and wind speed and direction. |
| Climatronics Corp. - Meteorological systems for ambient surface and upper air weather stations and networks. Offering sensors for wind, temperature, humidity, rainfall, pressure, solar, ice, clouds and visibility. |
| Coastal Environmental Systems - Coastal Environmental designs and manufactures weather stations, meteorological, environmental monitoring instrumentation, and data acquisition systems. |
| Columbia Weather Systems - Makers of the Capricorn weather stations. Systems include wind speed and direction, temperature, barometric pressure, humidity, rainfall, leaf wetness, solar radiation and soil moisture. |
| Comptus Inc. - Manufacturer of meterological instruments for measuring wind, rain, snow and other weather elements. |
| Corr-Tek Idrometria - Environmental Monitoring: Products for Sampling and Monitoring Water |
| Davis Instruments Corp. - Weather instrumentation for amateur and commercial meteorologists. Introductory Flash option. |
| DWC (Danish Wind Controller A/S) - Rugged wind sensors for critical environmental conditions. |
| Dynalab - Manufacturer of Meteorological sensors and Automatic Weather stations |
| Dynamax, Inc. - Provides instruments and sensors for plant, water, environment, and hydrology. |
| ELBW Technology SA, - Designer and manufacturer of no moving parts Meteorological sensors |
| ELE International - Range of meteorological testing and monitoring equipment. |
| Enercorp Instruments Ltd - A Manufacturer of Pressure, Temperature, and Humidity instrumentation. |
| Environdata - Design, manufacture, and sale of weather stations and sensors. |
| EnviroTech Sensors - Specialize in the design, and manufacture of sensors used in environmental and industrial settings. |
| Fairmount Weather Systems - Manufacturer of Meteorological and Hydrological Instruments. |
| Fidelity Technologies Corp. - Line of high-precision meteorological products and systems. |
| Fischer - Manufactures measuring and recording instruments for meteorology and indoor climate. |
| FT Technologies Ltd - Manufacturers of compact, rugged, low power ultrasonic wind sensors. |
| Gematronik Weather Radar Systems - Doppler weather radar systems and weather data processing software. |
| GPSE - Provides Data Logging and Weather Station solutions to the scientific, agriculture, and construction industries. |
| GRAW Radiosondes - Develops and manufactures GPS-based radiosonde-systems for upper-air measurements |
| High Sierra Electronics - Meteorological and Hydrological Sensors and Gauges, including warning and response products and services. |
| Hovemere Ltd - Scientific instrument company specialising in Optical and Electronic Measurement Systems, for use in Research Applications. |
| Hukseflux Thermal Sensors - For measurement of heat flux, thermal conductivity, thermal gradients and transfer coefficients, and particularly surface energy balance measurements in meteorology. |
| IAV Engineering - Manufacturer of the patented FlowCapt snowdrift monitoring solutions. |
| Info-Electronics Systems Inc. - Supplies state-of-the-art meteorological equipment and weather briefing/forecasting systems. |
| Instromet Ltd - Weather Monitoring equipment manufacture. |
| Instromet Ltd - Instromet Ltd. - Manufactures wind sensors |
| Inteltronics Instrumentation - Supplier of Meteorological Instrumentation in South Africa and Africa. |
| Intermountain Environmental - Carries a wide variety of meteorological system and sensors for environmental work. |
| IRDAM SA - Automatic weather stations, digital anemometers and other meteorological instruments and sensor systems for the naval defence industry. |
| Jarek Manufacturing Limited - Rain Gauges, tipping bucket type |
| Kipp & Zonen Corp. - A manufacture of environmental monitoring instrumentation, ISO and WMO class meteorological and solar radiation sensors and accessories. |
| Koshin Denki Kogyo Co. Ltd. - International manufacturer of individual sensors and weather systems, based in Japan. |
| Lambrecht GmbH - Develops precision meteorological instruments and systems. |
| LI-COR Environmental Research and Analysis - Instrumentation for the environmental sciences, including radiation sensors, infrared gas analyzers, dataloggers, light meters, and meteorological measurement systems. |
| Lirafort - Atmospherique pressure recorder. Displays the graph of the pressure on a screen |
| LN Industries Environmental Instrumentation - LN Industries Air pollution monitoring network equipment calibrates air pollution monitors of SO2, NO, NO2, CO, CO2, O3, hydrocarbons, BTX, NH3, H2S. |
| Mesotech - Instruments and systems for meteorology, hydrology, and environmental monitoring |
| Met Engineering Limited - Procurement and supply of professional quality meteorological instrumentation, equipment and systems, and the provision of wide-ranging engineering support, worldwide. |
| METEK BmbH - A producer of ground based remote sensing equipment for meteorological applications |
| MeteoClima - Automatic weather stations and Data Acquisition Systems. |
| Meteorological Systems and Equipment - Meteorological Instruments, Manufactures Automatic Weather and Environmental Station, Services, and Maintenance. |
| Meteo-Technology - Meteorological sensors and measurement systems: the place to start searching. Comprehensive database. |
| Microcomm Group - Manufacturers of meteorological and environmental monitoring systems for defence, industrial, and marine applications. |
| MicroMet Group - Supplier of a range of meteorological systems including doppler weather radars, automatic weather stations, anemometers and other met sensors. |
| MicroStep-MIS - Manufactures monitoring and information systems for a variety of disciplines including meteorology and environmental sciences. |
| Middleon Solar - Builds solar and terrestrial radiation instruments including a solarimeter, pyrheliometer and net pyrradiometer |
| Mierij Meteo - Meteorological sensors and systems. |
| Morcom International, Inc. - Supplies a wide range of meteorological equipment and systems. |
| Muir Matheson Ltd - An engineering company specializing in installation and maintenance of weather monitoring equipment |
| NovaLynx Corporation - Manufacturer of weather monitoring instruments including tipping bucket rain gauges, anemometers, evaporation pans and sensors, and modular weather stations. |
| Nubila SAS - Developer of meteorological software and hardware for data processing and nowcasting, including the rain gauge-disdrometer PLUDIX, based on backscattering of a MW beam by hydrometers. Italian company, site in English. |
| Optical Scientific, Inc. - Measurement instruments using optical technology in the areas of weather, the environment, transportation, aviation and communications. |
| Pacific Data Systems - Meteorological instrumentation and systems, water quality, air quality, and data acquisition. |
| Pulsonic - Stations, sensors, and modeling software primarily for agricultural uses. |
| R. M. Young Company - Precision meteorological instruments for: Wind Speed and Direction, Temperature, Humidity, Pressure, Precipitation; Indicators and displays, Data recorders |
| Radiometrics Corporation - Radiometers to provide water vapor and temperature profiles. |
| RainWise Inc. - Manufactures solar powered wireless weather stations, data loggers, rain gauges, anemometers, barometers, and thermometers |
| REMTECH Inc. Home Page - Manufactures DOPPLER SODAR (Acoustic Wind Profiler), the RASS (Air Temperature Profiler) and the DOPPLER SONAR (Acoustic Doppler Current Profiler) |
| Rotronic - Line of instruments for the measurement of relative humidity, dew point, water activity and other humidity parameters. |
| Scientific Sales, Inc. - Offers a line of weather instruments, including wireless weather stations. |
| Scintec A.G. - Manufacturer of innovative radiowave, acoustic, and optical sensing technology for atmospheric research. |
| Sensormetrics - Weather Instruments and Environmental Measurement Systems for Commercial and Residential applications. |
| SensorScope - A new generation environmental measurement system centered on wireless sensor networks. |
| Sippican, Inc. - Product lines include expendable upper air oceanographic and meteorologic instrumentation and associated data acquisition systems. |
| Skyview Systems - Skyview Systems is a UK based company, supplying meteorological, hydrological and marine instruments. |
| Solar Light Company - Manufacturer supplying solar radiation, ozone column, and aerosol measurement systems. |
| Squitter Electronics - Weather monitoring products, including a full line of automated, research-grade weather stations. |
| Sutron Corporation - Information and products to build a weather station. |
| Technika Weather Station Central - Weather Stations in the best olde world tradition with state of the art precision technology. |
| TECMES Instrumentos Especiales SRL - Produces sensors, recorders and systems for hydrometeorology and agrometeorology. |
| Texas Electronics - Designer and manufacturer of industrial quality meteorological sensors and systems since 1957, including rain, wind, temperature, barometric pressure, humidity, controllers, data loggers, and solar radiation instruments. |
| Texas Weather Instruments - Digital weather stations, peripherals, and related equipment. |
| TheDataLoggerStore.com - Distributor of data logging, data acquisition and weather station products measuring rainfall, wind speed and direction, solar light, temperature and humidity. |
| Theodor Friedrichs GmbH - Meteorological Sensors and Systems |
| Thies Clima - Measurement instruments for meteorology, environmental protection, and industrial applications. |
| UPSI Hgrometry - Humidity and Temperatuare sensors, transmitters, and probes. |
| US Precision Lightning Network - Provides lightning detection services |
| Vaisala - Manufactures electronic measurement systems and equipment for meteorology and the environmental sciences, traffic safety, and industrial applications. |
| Vector Instruments - Manufacture and sales of quality, robust, and professional meteorological instruments for scientific, industrial and wind-power applications. |
| Wittich & Visser - Manufacturer of meteorological instruments and complete systems. |
| Yankee Environmental Systems, Inc. - Advanced optical weather instrumentation for solar radiation and dew point humidity. |