Company lists · Data refreshed November 2026

Top 25 Hydrographic survey services based in the United Kingdom

RevenueBase identified 59 company matches for hydrographic survey services associated with the United Kingdom as of November 2026 and tracks 940 professional contacts across them, including 345 with verified work emails. Aberdeen is the largest hub.

This list covers company matches for hydrographic survey 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
59Companies
940Contacts tracked
345Verified emails
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The 25 largest hydrographic survey services based in the United Kingdom

Ranked by team size
Top 25 of 59 company matches for hydrographic survey 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 matchGreat Yarmouth, United KingdomHQ recorded Nov 6, 2026501-1,000557 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBordon, United KingdomHQ recorded Nov 6, 202651-20082 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLymington, United KingdomHQ recorded Nov 6, 202611-5045 contacts →

Exact match

“Spectrum specialises in the provision of combined marine survey and crew transfer vessel services to the offshore construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchShipston On Stour, United KingdomHQ recorded Nov 6, 202611-5029 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAlton, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Trusted marine data solutions for confident decisions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIrvine, United KingdomHQ recorded Nov 6, 202611-5014 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPenryn, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“CMS began with a simple mission: to provide the marine industry with precise and dependable data that builds confidence from the seabed up.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHayle, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Ultrabeam is a multi-award-winning company specialising in high-definition marine survey and asset inspection.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchStanley Industrial Estate, United KingdomHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“SEP Hydrographic Limited was established in 2020 to meet the growing demand for a complete land and marine survey solution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBath, United KingdomHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“Bluefield Geoservices was established in 2018 to provide the ocean industries with a fresh approach to offshore geotechnical survey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchTattenhall, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Hydrofix specialises in providing full project lifecycle hydrographic and geophysical support services to the offshore construction industry and service support providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchInverurie, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Established in 2020, Ocean Phoenix International Ltd is a specialist Marine and Hydrographic Survey support company which has been set up by Offshore Industry veteran Peter…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDorchester, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Shoreline Surveys Limited is a research company based out of Moreford Hall, Crossways, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBridgend, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Titan Environmental Surveys Ltd is a multi-disciplinary marine and environmental surveying company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“PicSea is an innovative underwater survey and technology company dedicated to revolutionizing subsea data collection.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHayle, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Swathe Services is a group of leading survey support companies providing highly qualified survey personnel and equipment to marine engineers, contractors and surveyors around the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchChudleigh, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Environmental Consultancy and Survey company offering data acquisition, analysis and modelling.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStratford-upon-avon, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Land & Hydrographic Surveys.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBristol, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Hydrographic Survey Consultancy BeamworX UK Sales PicoTech UK Sales Echologger UK Sales Applanix POSPac UK Sales Hydrographic Survey Personnel (IHO/FIG/ICA accredited CatA)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAshton Hayes, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“MB Surveying 4D Ltd is a professional firm of Hydrographic, Land & Engineering Surveyors established in 2004.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWirral, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“G&W Marine was established to provide practical and cost effective technical services to the marine industry and since then continues to provide an innovative range of Marine…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRed Lodge, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Tower was founded in 1984 to provide custom built software to the Hydrographic Surveying Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBarrow-in-furness, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Bay Towage & Salvage Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBelfast, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Hydrographic Surveys Underwater Inspection Aerial Surveys”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTaunton, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“CMGeomatics is a specialist coastal and offshore hydrographic, geophysical and geotechnical data processing company for the marine survey industry.”

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

Showing 25 of 59 hydrographic survey services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 345 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrographic survey services based in the United Kingdom at a glance

As of Nov 6, 2026
36.7%Verified-email coverage
15.9Average contacts per company
1-10Median size (employees)
3.4%Largest-city concentration · Aberdeen
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
44
11-50
11
51-200
1
501-1,000
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 59 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 “hydrographic survey 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 345 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 “hydrographic survey services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrographic survey services are there based in the United Kingdom?

RevenueBase identified 59 company matches for hydrographic survey 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?

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

Which city has the most hydrographic survey services?

Aberdeen leads with 2 company records, followed by Edinburgh (2) and Hayle (2).

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 345 professional contacts with verified work emails tracked across these 59 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 59 hydrographic survey services based in the United Kingdom. Start with a free account, no credit card.

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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.