Robertson Geo pioneered the development of slim-hole, digital borehole logging systems and techniques for geophysical measurements. Over 40 years, it has acquired extensive field experience in the geotechnical, mining, water, environmental, renewables and hydrocarbon sectors. Robertson Geo is the only ISO certified logging services provider, with fully traceable calibration and QA procedures, and is fully licensed to handle nuclear logging tools. The company is headquartered in North Wales and the site houses the design, development and main assembly capability, with onsite test facilities including a borehole, calibration blocks, ovens and autoclaves. The Logging Service Division provides subsurface borehole logging and rentals, offering a wide range of geophysical probes and surface equipment, including winches, optical and acoustic televiewers, borehole inspection cameras, PS Logger and Elastmeter pressure tools. The company conducts logging operations on major infrastructure projects in UK and overseas, utilising a fleet of customised logging vehicles for all site conditions.