- Aerodyne Research, Inc. - Provides instrumentation and consulting for environmental air quality monitoring and measurements.
- Ecotech World Class Air & Water Monitoring - Specializes in ambient air and emissions monitoring instruments and provides solutions for process gas and water monitoring applications.
- Horiba Instruments, Inc. - Manufacturer and supplier of CEMS, ambient, and process gas instrumentation.
- Michigan Aerospace Corporation - Lidar based weather sensing systems and optical air data systems.
- Sunset Laboratory, Inc. - Designs and provides instruments for analysis of carbonaceous aerosol for both lab-based and semi-continuous field measurements.
- TSI Incorporated - - Designs and manufactures instruments used to measure flow, particulate, and other key parameters in environmental research.
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