Company lists · Data refreshed September 2026

Top 25 Hydrogeological survey companies based in the United Kingdom

RevenueBase identified 212 company matches for hydrogeological survey companies associated with the United Kingdom as of September 2026 and tracks 2,936 professional contacts across them, including 1,219 with verified work emails. London is the largest hub.

This list covers company matches for hydrogeological survey companies 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 September 20, 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 Sep 20, 2026 How this list was built
212Companies
2,936Contacts tracked
1,219Verified emails
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The 25 largest hydrogeological survey companies based in the United Kingdom

Ranked by team size
Top 25 of 212 company matches for hydrogeological survey companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchGreat Yarmouth, United KingdomHQ recorded Sep 20, 2026501-1,000545 contacts →

Exact match

“Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchGloucester, United KingdomHQ recorded Sep 20, 202651-200187 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 · Sep 20, 2026 · View company records in RevenueBase
3Exact matchRoss-on-wye, United KingdomHQ recorded Sep 20, 2026201-500159 contacts →

Exact match

“Igne is a leading UK specialist delivering integrated and stand-alone services across ground investigation, specialist drilling, UXO risk mitigation, materials testing…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBristol, United KingdomHQ recorded Sep 20, 2026201-500137 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 · Sep 20, 2026 · View company records in RevenueBase
5Exact matchDurham, United KingdomHQ recorded Sep 20, 202651-20077 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 · Sep 20, 2026 · View company records in RevenueBase
6Exact matchEynsham, United KingdomHQ recorded Sep 20, 202651-20075 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 · Sep 20, 2026 · View company records in RevenueBase
7Exact matchBordon, United KingdomHQ recorded Sep 20, 202651-20074 contacts →

Exact match

“EGS International Ltd (EGSi) is part of a leading international group of companies specialising in marine surveys.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchGlasgow, United KingdomHQ recorded Sep 20, 202651-20071 contacts →

Exact match

“EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchKings Langley, United KingdomHQ recorded Sep 20, 202651-20065 contacts →

Exact match

“Part of the WJ Group, WJ UK offer a complete groundwater control and management service, which encompasses design, installation and maintenance programmes to businesses throughout…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBallymoney, United KingdomHQ recorded Sep 20, 202651-20060 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 · Sep 20, 2026 · View company records in RevenueBase
11Exact matchGloucester, United KingdomHQ recorded Sep 20, 202651-20060 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 · Sep 20, 2026 · View company records in RevenueBase
12Exact matchWashington, United KingdomHQ recorded Sep 20, 202651-20054 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 · Sep 20, 2026 · View company records in RevenueBase
13Exact matchNottingham, United KingdomHQ recorded Sep 20, 2026501-1,00041 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchNewbury, United KingdomHQ recorded Sep 20, 202611-5036 contacts →

Exact match

“As a world-leading independent consultancy in oil and gas field water management, our team provides on-site fluid sampling, laboratory analysis, specialty monitoring equipment for…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchNorwich, United KingdomHQ recorded Sep 20, 202611-5032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchShipston On Stour, United KingdomHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“Measurement experts who use innovation to understand river functions and provide knowledge to inform projects that reduce flooding and improve natural habitats.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBury St Edmunds, United KingdomHQ recorded Sep 20, 202651-20030 contacts →

Exact match

“MGS manufactures and supplies specialist quality products for use in ground investigation, water well, and geothermal drilling applications, as well as a variety of railway…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchBrierley Hill, United KingdomHQ recorded Sep 20, 202611-5028 contacts →

Exact match

“Johnson Poole and Bloomer is an independent multidisciplinary geoenvironmental and mineral consultancy operating in several closely related and complementary areas - Geotechnical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchChurch Stretton, United KingdomHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Established in 2004, LandScope Engineering has become one of the leading survey companies in the UK specialising in integrated survey solutions above ground, below ground and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchIrvine, United KingdomHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Aspect Land & Hydrographic Surveys Ltd are one of the UK’s leading independent coastal survey companies, with extensive experience and a proven track record in providing…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchNairn, United KingdomHQ recorded Sep 20, 202651-20022 contacts →

Exact match

“Specialists in Private Water Supplies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchMelbourne, United KingdomHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Envireau Water is one of the UK's leading independent consultancies specialising in water management and environmental regulation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchCardiff, United KingdomHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Complex Geophysics delivered by Down to Earth people: 33 years' experience working with engineers & consultants delivering honest, reliable and objective subsurface mapping…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSeaham, United KingdomHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Drilcorp was established in 1992 and since then has developed into one of the UK’s top drilling companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchThe Pensnett Estate, United KingdomHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Established in the heart of the Black Country in 1982, GIP is now one of the largest geo-environmental and geotechnical engineering companies of its kind in the Midlands…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 212 hydrogeological survey companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,219 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogeological survey companies based in the United Kingdom at a glance

As of Sep 20, 2026
41.5%Verified-email coverage
13.8Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
120
11-50
69
51-200
13
201-500
4
501-1,000
2

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 212 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 “hydrogeological survey companies” 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 1,219 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 September 20, 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 “hydrogeological survey companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogeological survey companies are there based in the United Kingdom?

RevenueBase identified 212 company matches for hydrogeological survey companies associated with the United Kingdom as of September 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?

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

Which city has the most hydrogeological survey companies?

London leads with 7 company records, followed by Durham (4) and Nottingham (4).

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 1,219 professional contacts with verified work emails tracked across these 212 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 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 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.