Company lists · Data refreshed November 2026

Top 25 Geotechnical testing services based in the United Kingdom

RevenueBase identified 369 company matches for geotechnical testing services associated with the United Kingdom as of November 2026 and tracks 9,321 professional contacts across them, including 2,959 with verified work emails. London is the largest hub.

This list covers company matches for geotechnical testing services associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
369Companies
9,321Contacts tracked
2,959Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest geotechnical testing services based in the United Kingdom

Ranked by team size
Top 25 of 369 company matches for geotechnical testing services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0004,408 contacts →

Exact match

“Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHertfordshire, United KingdomHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“Founded in 2003, Normec i2 Analytical is one of Europe's leading environmental testing companies providing its customers a comprehensive range of analytical, monitoring and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGloucester, United KingdomHQ recorded Nov 6, 202651-200202 contacts →

Exact match

“Geotechnical is the leading independent provider of ground investigation in the UK, offering comprehensive intrusive surveys since 1961.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBristol, United KingdomHQ recorded Nov 6, 2026201-500148 contacts →

Exact match

“Structural Soils offer comprehensive ground Investigation services to a range of clients in the public and private sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLeeds, United KingdomHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“Soil Engineering has been involved with the geotechnical sector since 1963.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPoole, United KingdomHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“ACS has transitioned its specialist services into two established businesses within the Phenna Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHarrogate, United KingdomHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“CGL is a leading specialist geotechnical consultancy and has a reputation for solving difficult technical problems with value engineering in construction projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCoventry, United KingdomHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Founded in 1983, Geotechnics Limited is now one of the largest independent geotechnical specialists in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEynsham, United KingdomHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Zetica is the UK’s leader in engineering and environmental geophysics, with an enviable reputation for objective advice, novel problem solving, consistently high-quality surveys…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDurham, United KingdomHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Dunelm has 50 years’ experience as leaders in the field of ground investigation, providing site investigation services on a national scale at competitive prices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCoventry, United KingdomHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Concept is a fresh, innovative and dynamic specialist site investigation company established in 1997.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBishop’s Stortford, United KingdomHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“BAUER Technologies Ltd is a leading geotechnical contractor in the UK, delivering innovative and sustainable solutions for retaining structures, piled foundations, cut-off walls…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBallymoney, United KingdomHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Causeway Geotech Ltd bring together a team of Chartered Geotechnical Engineers with over 100 years of experience in total of offshore and onshore geotechnical ground investigation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHook, United KingdomHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“About Us: GDS Instruments designs, develops and manufactures materials testing machines and software used for the computer-controlled testing of soils and rocks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWashington, United KingdomHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Ian Farmer Associates has been carrying out ground investigations since 1985 and has built a strong client base of consulting engineers, builders, developers, architects…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHitchin, United KingdomHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Construction Materials Testing Laboratories is a leading specialist in delivering high-quality geotechnical testing of construction and civil engineering materials.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“A-squared Studio is a geotechnical and structural engineering consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNottingham, United KingdomHQ recorded Nov 6, 2026501-1,00043 contacts →

Exact match

“Strata Geotechnics is one of the UK's leading ground investigation and geotechnical specialist contractors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGloucester, United KingdomHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“CC Ground Investigations specialise in undertaking all types of geotechnical and environmental site investigation work throughout the U.K.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNorthampton, United KingdomHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“About Us Since 1992, we have been delivering trusted geotechnical, environmental and fabric survey consultancy services, helping our clients to navigate risks and successfully…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNorthwich, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Brownfield Solutions Limited, part of Celnor Group, are specialist Geo-Environmental and Geotechnical Consultants Our vision is to be a widely renowned and highly respected…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNorwich, United KingdomHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Harrison Group Environmental is one of the UK’s leading geotechnical and geoenvironmental engineering firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLlandysul, United KingdomHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Spencer Quantum has been providing specialist geotechnical, site and land services to local authorities and blue-chip clients in the highways, construction, environmental and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“We are committed to providing high quality site investigations to support the design and development of buildings, infrastructure and spaces across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNottingham, United KingdomHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“ROCK CIVIL ENGINEERING LIMITED is a construction company based out of Nottingham, England, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 369 geotechnical testing services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,959 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Geotechnical testing services based in the United Kingdom at a glance

As of Nov 6, 2026
31.7%Verified-email coverage
25.3Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
214
11-50
109
51-200
30
201-500
9
501-1,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 369 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “geotechnical testing services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 2,959 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geotechnical testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geotechnical testing services are there based in the United Kingdom?

RevenueBase identified 369 company matches for geotechnical testing services associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Keller tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geotechnical testing services?

London leads with 18 company records, followed by Manchester (6) and Nottingham (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,959 professional contacts with verified work emails tracked across these 369 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 369 geotechnical testing services based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.