Manning Environmental Inc.
Fluid Samplers, Wastewater Samplers, Vacuum, Peristaltic
http://www.manning-enviro.com/

James A Redding Company: Sampling Specialists
James A. Redding produces coal sampling systems, automated sampling systems, nine iron swing sampler, auger sampling systems, primary samplers, secondary samplers, belt feeders, sample crushing, final sample collectors, traveling hopper sampler, sampling, sampler, aggregate samplers, two-Stage sampling systems, three-stage sampling systems and more . Located in Somerset, Pennsylvania.
http://jamesaredding.com/

American Ecotech
Supplier of ambient air samplers used for indoor and outdoor research and monitoring purposes. Continuous pollutant and gas analyzers and calibrators for SO2, NOx, CO, CO2, H2S, O3 and particulate monitoring air samplers.
http://www.americanecotech.com

Phipps and Bird
Phipps & Bird brand jartesters, samplers and belt press simulators for the municipal and industrial Water and Waste Water Treatment markets
http://www.phippsbird.com/water.html

RADeCO, Inc.
For over 30 years, RADeCO has been the industry standard for air sampling products. We make air flow samplers (continous duty and grab samplers), remote monitoring systems, radioiodine cartridges, air flow calibrators,particulate filters, and other products for your air sampling needs. The company continues to supply the highest quality equipment to the Department of Energy, Department of Defense, commercial nuclear power plants and, more recently, the Environmental Protection Agency' Homeland Security efforts. RADeCO is known for its excellent customer service and for developing unique air sampling systems to fit its customers needs.
http://www.radecoinc.com

Samplers aliasing quality comparison
A study comparing hardware and software samplers resampling engines, comparing aliasing and audio quality.
http://www.discodsp.com/highlife/aliasing/

Aquatic Research Instruments
Aquatic Research Instruments: plankton net, closing plankton net, bongo plankton net, Tucker trawl plankton net, stream sampling net, water sampler, horizontal water sampler, vertical water sampler, sediment corer, Russian peat borer, gravity corer, piston corer, percussion corer, plankton trap, Utermoehl phytoplankton sedimentation chamber, Folsom plankton sample splitter, sediment traps, limnocorral, plankton counting tray.
http://www.aquaticresearch.com/

Dekati Ltd
Manufacturer of impactor aerosol samplers for atmospheric and pharmaceutical applications.
http://www.dekati.com/index.shtml

Aquamatic
Manufacturer of automatic stationary and portable wastewater samplers for industry.
http://www.aquamatic.ltd.uk/

Durham Geo Enterprises
Durham Geo Slope Indicator manufactures materials testing equipment, geotechnical and structural monitoring instruments, groundwater sampling and remediation pumps, and stormwater sampling pumps
http://www.durhamgeo.com