We design, manufacture, and supply a wide range of instruments and equipment to geotechnical and environmental professionals. In addition, we offer services related to our products, including training and technical support, equipment rentals, repair, and calibration.

Durham Geo Slope Indicator (DGSI) is a highly respected brand with instrumentation integrated into some of the world’s most important assets and construction projects.

Our expertise is based on decades of experience. Our geotechnical instrumentation dates back to the late 50s under the Slope Indicator brand. Our materials testing equipment originated under the Brainard Kilman name and our environmental products trace back to the 1990’s

Our Customers

DGSI’s customers include consulting engineers and scientists, earth and civil contractors, universities, government entities, research laboratories, and civil and environmental construction companies worldwide.

We work closely with leading companies in the energy, transportation, infrastructure, and water resources industries and we exceed their stringent requirements.

Our Profile