Durham Geo Slope Indicator provides high quality measurement instruments for some of the world's most important civil engineering projects

Roctest and its subsidiaries is a leading developer, manufacturer, and supplier of innovative sensing technologies using vibrating wire and fiber optic sensors for geotechnical, structural, medical, process control, and energy applications

Waterloo Hydrogeologic develops innovative software in groundwater modeling, environmental data management, water quality analysis and visualization, pumping test data analysis and groundwater remediation.

Sherborne Sensors is a high precision sensor manufacturer with an established history of providing accelerometers, inclinometers, and load cells for customers in the aerospace, military, transport, industrial, and civil engineering markets

Van Essen Instruments is a global leader in the design and supply of premium dataloggers and groundwater monitoring network management technology

Westbay Instruments is the wold leader in supplying instrumentation systems for three-dimensional groundwater monitoring and characterization