Company lists · Data refreshed September 2026

Top 25 Liquefaction assessment firms based in the United Kingdom

Name: Liquefaction assessment firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 168 companies tracked

RevenueBase identified 168 liquefaction assessment firms headquartered in the United Kingdom as of September 2026 and tracks 1,836 professional contacts across them, including 932 with verified work emails. London is the largest hub.

This list covers liquefaction assessment firms 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 20, 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 20, 2026 86% judged on-target in blind review

168Companies

1,836Contacts tracked

932Verified emails

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The 25 largest liquefaction assessment firms based in the United Kingdom

Ranked by team size

Top 25 of 168 liquefaction assessment firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to liquefaction assessment firms: 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	Indirect evidence	Bristol, United KingdomHQ checked Sep 20, 2026	201-500	137 contacts →
	Indirect evidence “Structural Soils offer comprehensive ground Investigation services to a range of clients in the public and private sector.” Source: RevenueBase Database · checked Sep 20, 2026
2	Soil Engineering Geoservices Limited	Indirect evidence	Leeds, United KingdomHQ checked Sep 20, 2026	51-200	108 contacts →
	Indirect evidence “Soil Engineering has been involved with the geotechnical sector since 1963.” Source: RevenueBase Database · checked Sep 20, 2026
3	Geotechnics	Indirect evidence	Coventry, United KingdomHQ checked Sep 20, 2026	51-200	95 contacts →
	Indirect evidence “Founded in 1983, Geotechnics Limited is now one of the largest independent geotechnical specialists in the UK.” Source: RevenueBase Database · checked Sep 20, 2026
4	CGL Card Geotechnics Limited	Indirect evidence	Harrogate, United KingdomHQ checked Sep 20, 2026	51-200	86 contacts →
	Indirect evidence “CGL is a leading specialist geotechnical consultancy and has a reputation for solving difficult technical problems with value engineering in construction projects.” Source: RevenueBase Database · checked Sep 20, 2026
5	Dunelm Geotechnical & Environmental LTD	Indirect evidence	Durham, United KingdomHQ checked Sep 20, 2026	51-200	77 contacts →
	Indirect evidence “Dunelm has 50 years’ experience as leaders in the field of ground investigation, providing site investigation services on a national scale at competitive prices.” Source: RevenueBase Database · checked Sep 20, 2026
6	Causeway Geotech LTD	Indirect evidence	Ballymoney, United KingdomHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect 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 20, 2026
7	CC Ground Investigations Limited	Indirect evidence	Gloucester, United KingdomHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “CC Ground Investigations specialise in undertaking all types of geotechnical and environmental site investigation work throughout the U.K.” Source: RevenueBase Database · checked Sep 20, 2026
8	IAN Farmer Associates 1998 Limited	Indirect evidence	Washington, United KingdomHQ checked Sep 20, 2026	51-200	54 contacts →
	Indirect 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 20, 2026
9	Cmtl LTD	Indirect evidence	Hitchin, United KingdomHQ checked Sep 20, 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 20, 2026
10	The LK Group	Indirect evidence	Manchester, United KingdomHQ checked Sep 20, 2026	11-50	45 contacts →
	Indirect evidence “Looking for a ground investigation or remediation partner you can trust?” Source: RevenueBase Database · checked Sep 20, 2026
11	Strata Geotechnics	Indirect evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	501-1,000	41 contacts →
	Indirect evidence “Strata Geotechnics is one of the UK's leading ground investigation and geotechnical specialist contractors.” Source: RevenueBase Database · checked Sep 20, 2026
12	Soiltechnics Limited	Indirect evidence	Northampton, United KingdomHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “About Us Since 1992, we have been delivering trusted geotechnical, environmental and fabric survey consultancy services, helping our clients to navigate risks and successfully…” Source: RevenueBase Database · checked Sep 20, 2026
13	Brownfield Solutions	Indirect evidence	Northwich, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
14	Harrison Group Environmental Limited	Indirect evidence	Norwich, United KingdomHQ checked Sep 20, 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 20, 2026
15	Geotechnical Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
16	Geo-Environmental Services Limited	Indirect evidence	Hurstpierpoint, United KingdomHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Geo-Environmental is an independent practice of geotechnical engineers, environmental consultants, and investigation contractors, who have been established since 1996.” Source: RevenueBase Database · checked Sep 20, 2026
17	Professional Soils Laboratory LTD	Indirect evidence	Doncaster, United KingdomHQ checked Sep 20, 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 20, 2026
18	GBG Group UK	Indirect evidence	Swaffham Bulbeck, United KingdomHQ checked Sep 20, 2026	51-200	25 contacts →
	Indirect evidence “Offering a range of expert services specialising in structural and geotechnical investigation.” Source: RevenueBase Database · checked Sep 20, 2026
19	A F Howland Associates	Indirect evidence	Norwich, United KingdomHQ checked Sep 20, 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 20, 2026
20	Earth Environmental & Geotechnical LTD	Indirect evidence	Stockport, United KingdomHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “We are an independent UK based company led by staff that have been providing advice to clients over the past thirty years.” Source: RevenueBase Database · checked Sep 20, 2026
21	Geotechnical & Environmental Associates	Indirect evidence	Ware, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Geotechnical and Environmental Associates (GEA) is an independent specialist providing a high-quality ground investigation and geotechnical and geoenvironmental consultancy…” Source: RevenueBase Database · checked Sep 20, 2026
22	Ground And Water Limited	Indirect evidence	Alton, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “Established in 2009 Ground and Water are a team of highly skilled independent specialist geotechnical engineers, geoenvironmental consultants and site investigation contractors…” Source: RevenueBase Database · checked Sep 20, 2026
23	RED Rock GEO	Indirect evidence	Exeter, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “Red Rock Geoscience Ltd ( A Kingdom & Partners company) is an independent geotechnical and geo-environmental consultant practice that delivers high quality and valued professional…” Source: RevenueBase Database · checked Sep 20, 2026
24	Applied Geology Limited	Indirect evidence	Warwick, United KingdomHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect 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 20, 2026
25	Lloyds Datum Group	Indirect evidence	Moira, United KingdomHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Lloyds Datum Group is an independent company specialising in Structural, Geo-technical and Environmental systems for the Building, Civil Engineering industry.” Source: RevenueBase Database · checked Sep 20, 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: liquefaction assessment firms. 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 liquefaction assessment firms.
Partial evidence: Its own public description names part of liquefaction assessment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name liquefaction assessment firms. 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 168 liquefaction assessment firms based in the United Kingdom

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Liquefaction assessment firms based in the United Kingdom at a glance

As of Sep 20, 2026

50.8%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 168 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 liquefaction assessment firms, 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 “liquefaction assessment firms”. 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 liquefaction assessment firms), 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 liquefaction assessment firms, 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, 932 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 20, 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 liquefaction assessment firms, 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 liquefaction assessment firms are there based in the United Kingdom?

RevenueBase identified 168 liquefaction assessment firms 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 liquefaction assessment firms?

London leads with 6 headquartered companies, followed by Harrogate (4) and Norwich (4).

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 932 verified decision-maker contacts tracked across these 168 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 20, 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.