Company lists · Data refreshed September 2026

Top 25 Foundation investigation companies based in the United Kingdom

Name: Foundation investigation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 72 companies tracked

RevenueBase identified 72 foundation investigation companies headquartered in the United Kingdom as of September 2026 and tracks 1,115 professional contacts across them, including 498 with verified work emails. London is the largest hub.

This list covers foundation investigation companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

72Companies

1,115Contacts tracked

498Verified emails

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The 25 largest foundation investigation companies based in the United Kingdom

Ranked by team size

Top 25 of 72 foundation investigation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to foundation investigation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Structural Soils	Partial evidence	Bristol, United KingdomHQ checked Sep 19, 2026	201-500	137 contacts →
	Partial evidence “Structural Soils offer comprehensive ground Investigation services to a range of clients in the public and private sector.” Source: RevenueBase Database · checked Sep 19, 2026
2	Causeway Geotech LTD	Partial evidence	Ballymoney, United KingdomHQ checked Sep 19, 2026	51-200	60 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
3	IAN Farmer Associates 1998 Limited	Partial evidence	Washington, United KingdomHQ checked Sep 19, 2026	51-200	54 contacts →
	Partial evidence “Ian Farmer Associates has been carrying out ground investigations since 1985 and has built a strong client base of consulting engineers, builders, developers, architects…” Source: RevenueBase Database · checked Sep 19, 2026
4	Cmtl LTD	Indirect evidence	Hitchin, United KingdomHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence “Construction Materials Testing Laboratories is a leading specialist in delivering high-quality geotechnical testing of construction and civil engineering materials.” Source: RevenueBase Database · checked Sep 19, 2026
5	Harrison Group Environmental Limited	Indirect evidence	Norwich, United KingdomHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “Harrison Group Environmental is one of the UK’s leading geotechnical and geoenvironmental engineering firms.” Source: RevenueBase Database · checked Sep 19, 2026
6	Geotechnical Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “Geotechnical Consulting Group (GCG) is one of the world’s leading independent geotechnical engineering consultancies, recognised for delivering innovative, research driven…” Source: RevenueBase Database · checked Sep 19, 2026
7	Professional Soils Laboratory LTD	Indirect evidence	Doncaster, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “Professional Soils Laboratory Ltd (PSL) is a fully independent 4043 UKAS accredited geotechnical and materials testing facility.” Source: RevenueBase Database · checked Sep 19, 2026
8	A F Howland Associates	Indirect evidence	Norwich, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “A F Howland Associates was formed in 1981 to provide an independent practice offering a specialist service in geotechnical engineering and related disciplines.” Source: RevenueBase Database · checked Sep 19, 2026
9	Applied Geology Limited	Partial evidence	Warwick, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Applied Geology Limited is a leading geo-environmental and geotechnical consultancy, providing high quality ground investigations and insightful solutions to the property, civil /…” Source: RevenueBase Database · checked Sep 19, 2026
10	Rogers Geotechnical Services LTD	Partial evidence	Huddersfield, United KingdomHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Rogers Geotechnical Services Limited or RGS, as we are known to most clients, provide Site Investigation Solutions and Consultancy Services to the construction, property…” Source: RevenueBase Database · checked Sep 19, 2026
11	Solmek LTD	Partial evidence	Stockton-on-tees, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Solmek Ltd is an independent site investigation company which has been operating since 2002.” Source: RevenueBase Database · checked Sep 19, 2026
12	Geol Consultants Limited	Indirect evidence	Team Valley Trading Estate, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Geol Consultants Limited (GEOL) is a Company based out of Tectonic House, Unit 11, Queens Court North, Third Avenue, Team Valley Trading Estate, Gateshead, Tyne and Wear, NE11…” Source: RevenueBase Database · checked Sep 19, 2026
13	Jackson GEO Services	Partial evidence	Llantrisant, United KingdomHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Geotechnical and Geo Environmental Ground Investigation Contractor and Service Provider.” Source: RevenueBase Database · checked Sep 19, 2026
14	Clyde Ground Investigation Limited	Partial evidence	Kilsyth, United KingdomHQ checked Sep 19, 2026	1-10	10 contacts →
	Partial evidence “Clyde Ground Investigation Limited are a self-sufficient contractor with our own drilling plant and engineer.” Source: RevenueBase Database · checked Sep 19, 2026
15	Groundsolve LTD	Indirect evidence	Queensferry, United KingdomHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “GROUNDSOLVE LIMITED is a geotechnical engineering company based in Bretton, Wales, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
16	Geoinvestigate Limited	Partial evidence	Stokesley, United KingdomHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “MORE THAN PROFESSIONAL CONSULTANCY & TECHNICAL SERVICES Geoinvestigate’s experts minimise ground risk by careful site investigation accurate ground characterisation and conceptual…” Source: RevenueBase Database · checked Sep 19, 2026
17	Able Piling & Construction Limited	Partial evidence	Fareham, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “A well established contractor providing foundation solutions to a wide variety of clients.” Source: RevenueBase Database · checked Sep 19, 2026
18	Aitken Laboratories Limited	Indirect evidence	Slamannan, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Our experienced team of experts have been providing an excellent service for companies involved in road, infrastructure and building construction for over 50 years.” Source: RevenueBase Database · checked Sep 19, 2026
19	Obsidian Geo-Consulting LTD	Indirect evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
20	A & I Geotechnical LTD	Partial evidence	Greenock, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Scotland’s Ground Investigation Project Specialists: complete geotechnical engineering, analysis and reporting services.” Source: RevenueBase Database · checked Sep 19, 2026
21	Murray RIX Northern LTD	Indirect evidence	Dukinfield, United KingdomHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Murray Rix was established in the very early days of 1994.” Source: RevenueBase Database · checked Sep 19, 2026
22	Substructure LTD	Partial evidence	Leeds, United KingdomHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Foundation Engineering & Substructure Contractors” Source: RevenueBase Database · checked Sep 19, 2026
23	Ground Risk LTD	Partial evidence	Liverpool, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Ground Risk Ltd provide high quality ground investigation services, with a model that aims to eliminate unnecessary site revisits and unexpected abnormal end-costs, passing those…” Source: RevenueBase Database · checked Sep 19, 2026
24	GEO UK Limited	Indirect evidence	Wigan, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
25	Discovery CE Limited	Indirect evidence	Rugby, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Discovery CE Limited is a specialist Geotechnical and Environmental engineering consultancy based in Warwickshire.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: foundation investigation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names foundation investigation companies.
Partial evidence: Its own public description names part of foundation investigation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name foundation investigation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 72 foundation investigation companies based in the United Kingdom

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Foundation investigation companies based in the United Kingdom at a glance

As of Sep 19, 2026

44.7%Verified-email coverage

15.5Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 72 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among foundation investigation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “foundation investigation companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names foundation investigation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among foundation investigation companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 498 across the full list. 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 September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names foundation investigation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many foundation investigation companies are there based in the United Kingdom?

RevenueBase identified 72 foundation investigation companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Structural Soils, headquartered in Bristol, tops this list with the largest team on record.

Which city has the most foundation investigation companies?

London leads with 3 headquartered companies, followed by Manchester (3) and Birmingham (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 498 verified decision-maker contacts tracked across these 72 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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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 Smart Search, 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.