SoilCore , Environmental Sampling Technologies - a Michigan based corporation founded July 1998, specializing in invention and manufacturing of soil-sampling devices.

Perri in Canada / Biotechnology - Innovative portable device to detect biopollutants in water and soil.

Soilmoisture Equipment Corp. - Manufacturer of instruments to measure and extract soil moisture. Products include tensiometers; extractors, compressors and manifolds; plant water status console; salinity sensing equipment; soil permeability equipment; samplers; and related instrumentation and electronic systems.

SensorComm - Suppliers of continuous soil vapour and liquid monitoring systems for hydrocarbon leak detection. Licensed to operate in the state of Florida.

Art's Manufacturing and Supply Inc. - Sampling technology and equipment for soil, soil gas vapor and groundwater.

Kel Instruments Co. Inc. - Specializing in soil pH and salinity test instruments.

ELE International Ltd - Supplies soil sampling, testing and analysis equipmentincluding soil augers, soil moisture meters for field and laboratory use, soil strength and soil nutrient analysis equipment.

Best Environmental Subsurface Sampling Technologies, Inc. - Suppliers of soil, soil-gas and groundwater sampling devices that utilize inert gas technologies to minimize VOC loss.

Tiger Probe Geoprobe Services - A geoprobe (direct push soil sampling) services provider serving Ohio, Kentucky, Indiana, Michigan, Tennessee, Illinois, West Virginia, Maryland, and Pennsylvania. Online estimates available with eQuote service.

Campbell Scientific, Inc. - Soil-water instrumentation. Applications include monitoring soil water content, matric potential, and soil heat flux.

DirectPush Technologies - Designs and manufactures direct-push soil and sediment sampling tools.