Company lists · Data refreshed September 2026
Top 25 Geotechnical engineering firms based in the United Kingdom
RevenueBase identified 1,182 geotechnical engineering firms headquartered in the United Kingdom as of September 2026 and tracks 19,819 professional contacts across them, including 6,640 with verified work emails. London is the largest hub.
This list covers geotechnical engineering 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 16, 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.
The 25 largest geotechnical engineering firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,960 contacts → | ||||
Partial evidence “Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,837 contacts → | ||||
Partial evidence “Established in 1986, SEP has been the industry’s leader for site engineering, surveying and management solutions for over thirty years, providing vital services, resources and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 437 contacts → | ||||
Indirect evidence “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 339 contacts → | ||||
Partial evidence “At Statom Group, we are a trusted provider of comprehensive Civil Engineering, Demolition, Remediation, Groundworks, and Structural solutions for the UK market.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 306 contacts → | ||||
Partial evidence “Van Elle is the UK’s largest ground engineering contractor.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 268 contacts → | ||||
Partial evidence “Roger Bullivant Limited is one of the UK’s leading piling, foundation and ground improvement contractors - We are passionate about ground engineering, foundations and all things…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 205 contacts → | ||||
Indirect evidence “Collins Earthworks Ltd has been managing earthmoving projects for over 20 years.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 187 contacts → | ||||
Partial evidence “Geotechnical is the leading independent provider of ground investigation in the UK, offering comprehensive intrusive surveys since 1961.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 180 contacts → | ||||
Partial evidence “With two main specialist areas - structures and geotechnical, the Expanded Group provides a total capability in the early construction phases of major projects.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 166 contacts → | ||||
Indirect evidence “With over 40 years experience JNP Group deliver highly professional, integrated efficient design and consultancy solutions from inception to completion, irrespective of project…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 156 contacts → | ||||
Partial evidence “End to End Service: From initial investigations and assessments to planning, design and engineering support, we give you a foundation of confidence for your site development…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 153 contacts → | ||||
Partial evidence “Aarsleff Ground Engineering Ltd is a subsidiary of Aarsleff A/S, one of Denmark’s leading civil engineering contractors.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 151 contacts → | ||||
Partial evidence “Geobear | Future-Proof Ground Engineering Geobear is a global ground engineering innovator operating across the UK, Ireland, Sweden, Finland, Poland, China-and growing.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 150 contacts → | ||||
Partial evidence “Rendel celebrated its 185th Anniversary in 2024, making us one of the oldest civil and structural engineering companies in the UK.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 146 contacts → | ||||
Partial evidence “Harley Haddow are Civil, Structural, Mechanical, Electrical, Building Performance & Sustainability and Geotechnical Consulting Engineers.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 116 contacts → | ||||
Indirect evidence “Mackley provides a comprehensive range of services from conception through construction to project delivery.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 113 contacts → | ||||
Partial evidence “CampbellReith is an independent firm of consulting engineers providing structural, civil, geotechnical, land quality, development planning and transport planning services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 108 contacts → | ||||
Strong evidence “Soil Engineering has been involved with the geotechnical sector since 1963.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 96 contacts → | ||||
Partial evidence “Crouch Waterfall is an established firm of Civil, Structural and Geotechnical Consulting Engineers with extensive experience of Railways, Buildings, Roads, Bridges and Waterways.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 95 contacts → | ||||
Partial evidence “Founded in 1983, Geotechnics Limited is now one of the largest independent geotechnical specialists in the UK.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 90 contacts → | ||||
Partial evidence “Since its inception in 1987, ACS Testing Ltd have been providing quality materials testing and Consultancy services to the Building, Construction and Civil Engineering industries…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 89 contacts → | ||||
Indirect evidence “Narro is a team of Consulting Structural & Civil Engineers with offices in Edinburgh, Glasgow, Stirling, Inverness, Aberdeen, Newcastle, and London.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 89 contacts → | ||||
Partial evidence “Simpson TWS is a successful civil and structural engineering consultancy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 86 contacts → | ||||
Strong 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 16, 2026Thanks. The Data Team will review it. | |||||
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: geotechnical engineering 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 geotechnical engineering firms.
- Partial evidence
- Its own public description names part of geotechnical engineering firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name geotechnical engineering 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 1,182 geotechnical engineering firms based in the United Kingdom
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Geotechnical engineering firms based in the United Kingdom at a glance
As of Sep 16, 2026Companies by employee count
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 1,182 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 geotechnical engineering 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 “geotechnical engineering 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 geotechnical engineering 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 geotechnical engineering 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, 6,640 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 16, 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.
Geotechnical engineering firms by metro
- Geotechnical engineering firms in London117
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 geotechnical engineering 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 geotechnical engineering firms are there based in the United Kingdom?
RevenueBase identified 1,182 geotechnical engineering 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?
Keller, headquartered in London, tops this list with the largest team on record.
Which city has the most geotechnical engineering firms?
London leads with 117 headquartered companies, followed by Birmingham (23) and Leeds (19).
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 6,640 verified decision-maker contacts tracked across these 1,182 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 16, 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.
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