Ground & Marine Investigation

ESG is the UK's market leading provider of geotechnical site investigations. Expert field operations backed up by UKAS accredited analytical testing and proven technical support draw on over 70 years' experience in delivering high quality services.

The effects of ground behaviour on the built and natural environment can be far reaching. ESG's Site Investigation team provides the comprehensive information engineers require to avoid uncertainty and risk.


Our Services Include:

  • Drilling and sampling
  • Cone Penetration Testing (CPT)
  • In situ testing
  • Instrumentation and monitoring
  • Geotechnical laboratory testing
  • Environmental laboratory testing
  • Geophysical, hydrographic and topographic surveys
  • Underground utility detection surveys
  • Materials testing
  • Technical advice 


ESG's geotechnical services team is a multi-disciplined organisation offering a range of technical services. Our depth and breadth of professional expertise, plant resource and extensive laboratory testing capability place us at the forefront of the ground investigation industry.

All phases of an investigation from desk study, walk over survey and initial risk assessment through intrusive investigation, laboratory testing, factual reporting and interpretation are covered. Projects vary in size from the ground investigation for foundations of individual buildings to multi-million pound land reclamation, highway schemes, power, rail, utility and industrial developments, both on land and over water.

ESG employ professional staff with a wide range of experience across numerous technical fields, including civil engineering, engineering geology, environmental science and chemistry, with many holding chartered status. Our commitment to quality is maintained by the provision of accredited management systems to ISO standard.