Site Investigation Specialists, Geotechnical & Environmental Consultants

Over 50 Years of Geotechnical and Environmental Excellence

Founded in 1972, Sub Surface is a trusted group of independent companies recognised as one of the UK’s leading providers of Geotechnical and Environmental Ground Investigation Services.

We are committed to building better through continuous improvement. By delivering accurate, high-quality ground investigation data and tailored solutions, we help our clients manage risk, overcome technical challenges, and deliver safer, more efficient, and more economical and sustainable developments.

Nationwide Coverage with Local Expertise

With strategically located offices across Great Britain, we offer a high quality, responsive and localised service, nationwide:

• North West – Preston, Lancashire
• North East – Ossett, West Yorkshire
• Midlands – Tipton, West Midlands
• South East – High Wycombe, Buckinghamshire

This regional presence ensures our clients benefit from a personalised service, in-depth local knowledge, and cost-effective delivery on every project.

A Qualified and Trusted Team

Our team includes Chartered Geotechnical Engineers, Chartered Geologists, Chartered Environmentalists, and a Qualified Person under the CL:AIRE DoW:CoP. We are proud members of leading industry bodies, including:

• The Institution of Civil Engineers (ICE)
• The Institution of Environmental Sciences (IES)
• The Geological Society
• The Association of Geotechnical & Geoenvironmental Specialists (AGS)
• The British Drilling Association (BDA)