Welcome to CGL

We are an award-winning geotechnical and geoenvironmental consultancy.  We work at the forefront of the industry, providing innovative ground solutions that allow our clients to manage their ground risks.






CGL | Specialist Geotechnical and Geoenvironmental Consultancy

“We can help you to manage risks, forecast and contain costs, or turn marginally viable proposals into profitable opportunities.”


CGL is a specialist geotechnical and geoenvironmental consultancy, delivering leading-edge services for a wide range of clients. We provide advice and design solutions on a broad range of ground-related issues, working directly with site developers or their design and construction teams.

Leadership in Ground Engineering

Our strengths are our core engineering knowledge and broad perspective incorporating both geotechnical and geoenvironmental expertise. Our deep understanding of ground and contaminant behaviour means we can give you cost-effective advice on complex site conditions. We can provide value engineered solutions for difficult sites that often turn marginally viable developments into profitable opportunities.

Since December 2020 CGL has become part of the CTS Group (Construction Testing Solutions) offering a wide range of complementary services to the industry.

COVID – CGL Working Arrangements

From the initial lockdown in late March 2020, CGL has continued to work within government and industry guidelines to maintain as near “normal” working as can be achieved.  Staff are in the main either working from home or they are on site working within either our own or overarching client requirements as appropriate.  Our offices are open to support colleagues but on a reduced attendance basis, and of course we remain available for meetings and conference calls through the likes of Microsoft Teams or Zoom and traditional phone lines/mobiles.

We are being careful to source suppliers who will work to our own and client requirements, in what is proving to be a busy time for all in the industry.  Sometimes this has required a little patience to achieve, and we are grateful to our clients in recognising these impacts as we organise our work for them.

We continue to provide the high quality ground solutions our clients expect of us and wish to thank all our clients, both old and new, for working with us to deliver projects that meet their needs in these unusual days.

Recent CGL Projects

Foundation Reuse at One Berkeley Street London - CGL Projects

One Berkeley Street, London

Site Investigation, Ground Movement & Asset Impact Assessment, Foundation Reuse

geotechnical analysis and design

Peacocks Shopping Centre, Woking

Geotechnical Analysis and Design

South West Scotland OHL Scheme, Ayrshire

Extensive ground investigations at remote locations in challenging conditions.

Latest News From CGL

New CGL Office – Leicester

New CGL Office – Leicester

We’re happy to announce that CGL has a new addition to our growing team. The previous Geotechnical Nicholls Colton team will form the Midlands office for CGL, based in Leicester.

CGL Retains Investors In People Gold Accreditation

CGL Retains Investors In People Gold Accreditation

CGL are proud to have retained our Investors in People Gold Accreditation this year; only 17% of organisations achieve this standard.  The IIP assessors commentated that: “CGL remains an organisation committed to continuous improvement, and this is evident from all...