Company lists · Data refreshed September 2026
Top 25 Hydrographic survey companies based in the United Kingdom
RevenueBase identified 76 company matches for hydrographic survey companies associated with the United Kingdom as of September 2026 and tracks 1,031 professional contacts across them, including 420 with verified work emails. Lymington is the largest hub.
This list covers company matches for hydrographic 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.
The 25 largest hydrographic survey companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 545 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 | |||||
| 2 | 74 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 | |||||
| 3 | 44 contacts → | ||||
Exact match “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 41 contacts → | ||||
Exact match “Coda Octopus is a global leader and specialist in underwater technologies including being the patent holder for the real-time 3D sonar, the Echoscope®.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 41 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 31 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 | |||||
| 7 | 27 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 | |||||
| 8 | 12 contacts → | ||||
Exact match “SG Survey are independent marine surveyors providing a first class service, worldwide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 11 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 11 contacts → | ||||
Exact match “Macduff Ship Design Ltd are proven industry leaders in the Naval Architecture and Marine Survey sectors, having worked for more than 25 years with owners, operators and shipyards…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 10 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 10 contacts → | ||||
Exact match “Caintech Ltd was first established in August 1988 and worked solely within the offshore Oil sector until May 2005 when we expanded into construction, land and hydrographic…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 10 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 9 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 9 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 8 contacts → | ||||
Exact match “Titan Environmental Surveys Ltd is a multi-disciplinary marine and environmental surveying company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 8 contacts → | ||||
Exact match “Shoreline Surveys Limited is a research company based out of Moreford Hall, Crossways, United Kingdom.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Randall Surveys LLP is a multi-disciplinary survey practice based in Bures, on the Essex/Suffolk border.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 5 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Zeewarriors is a Marine Specialists company, formed to provide a complete marine service to its customers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “PicSea is an innovative underwater survey and technology company dedicated to revolutionizing subsea data collection.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “DOHS was founded in 1989, at a time when the offshore hydrographic survey industry was increasing the use of contract staff and our founder Dave Oliver realised that a service…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “South Coast Marine Surveyors can provide surveys for private owners or future purchasers of Yachts and Motor Boats.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “CMS Offshore Ltd owns and operates its own 24m survey vessel which is idea for geotechnical and geophysical surveys, UXO investigations, environmental monitoring, towage, salvage…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “Survey vessel operators” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “hydrographic survey companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 76 hydrographic survey companies based in the United Kingdom
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Hydrographic survey companies based in the United Kingdom at a glance
As of Sep 20, 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 76 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 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 420 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 “hydrographic survey companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many hydrographic survey companies are there based in the United Kingdom?
RevenueBase identified 76 company matches for hydrographic 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 hydrographic survey companies?
Lymington leads with 4 company records, followed by London (3) and Edinburgh (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 420 professional contacts with verified work emails tracked across these 76 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.
Ready to reach these companies? Verified emails and direct dials for all 76 hydrographic survey companies based in the United Kingdom. Start with a free account, no credit card.
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Hydrographic survey companies by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Hydrographic survey companies based in Australia
- Hydrographic survey companies based in the Netherlands
- Hydrographic survey companies based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
Company intelligence · public preview
Top 25 hydrographic survey companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 76 matching company records for hydrographic survey companies based in the United Kingdom, with 1,031 tracked contacts and 420 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 hydrographic survey companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Gardline Limitedgardline.comHQ: Great Yarmouth, United KingdomReported employees: 501-1,000 | Great Yarmouth, United Kingdom | 501-1,000 | Exact match | 545 contacts → |
“Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  EGS Internationalegssurvey.comHQ: Bordon, United KingdomReported employees: 51-200 | Bordon, United Kingdom | 51-200 | Exact match | 74 contacts → |
“EGS International Ltd (EGSi) is part of a leading international group of companies specialising in marine surveys.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  GPS Marine Contractors LTDgpsmarine.co.ukHQ: Rochester, United KingdomReported employees: 51-200 | Rochester, United Kingdom | 51-200 | Exact match | 44 contacts → |
“Marine Contractors specialising in: Marine Civil Engineering and Construction.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Coda Octopus Productscodaoctopus.comHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Coda Octopus is a global leader and specialist in underwater technologies including being the patent holder for the real-time 3D sonar, the Echoscope®.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Spectrumspectrum-offshore.com HQ: Lymington, United KingdomReported employees: 11-50 | Lymington, United Kingdom | 11-50 | Exact match | 41 contacts → |
“Spectrum specialises in the provision of combined marine survey and crew transfer vessel services to the offshore construction industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Storm Geomatics Limitedstorm-geomatics.comHQ: Shipston On Stour, United KingdomReported employees: 11-50 | Shipston On Stour, United Kingdom | 11-50 | Exact match | 31 contacts → |
“Measurement experts who use innovation to understand river functions and provide knowledge to inform projects that reduce flooding and improve natural habitats.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Aspect Land & Hydrographic Surveys LTDaspectsurveys.com HQ: Irvine, United KingdomReported employees: 11-50 | Irvine, United Kingdom | 11-50 | Exact match | 27 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sterling Global Marine LTDsgsurvey.com HQ: Fordingbridge, United KingdomReported employees: 1-10 | Fordingbridge, United Kingdom | 1-10 | Exact match | 12 contacts → |
“SG Survey are independent marine surveyors providing a first class service, worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | SEP Hydrographicsephydrographic.com HQ: Stanley Industrial Estate, United KingdomReported employees: 1-10 | Stanley Industrial Estate, United Kingdom | 1-10 | Exact match | 11 contacts → |
“SEP Hydrographic Limited was established in 2020 to meet the growing demand for a complete land and marine survey solution.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Macduff Ship Design LTDmacduffshipdesign.comHQ: Macduff, United KingdomReported employees: 11-50 | Macduff, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Macduff Ship Design Ltd are proven industry leaders in the Naval Architecture and Marine Survey sectors, having worked for more than 25 years with owners, operators and shipyards…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ultrabeam Hydrographicultrahydrographic.com HQ: Hayle, United KingdomReported employees: 11-50 | Hayle, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Ultrabeam is a multi-award-winning company specialising in high-definition marine survey and asset inspection.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Caintech LTDcaintechltd.com HQ: Inverness, United KingdomReported employees: 11-50 | Inverness, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Caintech Ltd was first established in August 1988 and worked solely within the offshore Oil sector until May 2005 when we expanded into construction, land and hydrographic…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | CMS Geoscience LTDcms-geoscience.co.uk HQ: Penryn, United KingdomReported employees: 1-10 | Penryn, United Kingdom | 1-10 | Exact match | 10 contacts → |
“CMS began with a simple mission: to provide the marine industry with precise and dependable data that builds confidence from the seabed up.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hydrofixhydrofix.co.uk HQ: Tattenhall, United KingdomReported employees: 1-10 | Tattenhall, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Hydrofix specialises in providing full project lifecycle hydrographic and geophysical support services to the offshore construction industry and service support providers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ocean Phoenix International Limitedoceanphoenix.co.uk HQ: Inverurie, United KingdomReported employees: 1-10 | Inverurie, United Kingdom | 1-10 | Exact match | 9 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Titan Environmental Surveys Limitedtitansurveys.com HQ: Bridgend, United KingdomReported employees: 11-50 | Bridgend, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Titan Environmental Surveys Ltd is a multi-disciplinary marine and environmental surveying company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Shoreline Surveys Limitedshorelinesurveys.com HQ: Dorchester, United KingdomReported employees: 1-10 | Dorchester, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Shoreline Surveys Limited is a research company based out of Moreford Hall, Crossways, United Kingdom.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Randall Surveys LLPrandallsurveys.co.uk HQ: Bures, United KingdomReported employees: 11-50 | Bures, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Randall Surveys LLP is a multi-disciplinary survey practice based in Bures, on the Essex/Suffolk border.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Swathe Servicesswathe-services.com HQ: Hayle, United KingdomReported employees: 1-10 | Hayle, United Kingdom | 1-10 | Exact match | 5 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Zeewarriorszeewarriors.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Zeewarriors is a Marine Specialists company, formed to provide a complete marine service to its customers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Picseapicsea.co.uk HQ: Edinburgh, United KingdomReported employees: 1-10 | Edinburgh, United Kingdom | 1-10 | Exact match | 3 contacts → |
“PicSea is an innovative underwater survey and technology company dedicated to revolutionizing subsea data collection.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dave Oliver Hydrographic Services LTDdohs.co.uk HQ: Great Yarmouth, United KingdomReported employees: 1-10 | Great Yarmouth, United Kingdom | 1-10 | Exact match | 3 contacts → |
“DOHS was founded in 1989, at a time when the offshore hydrographic survey industry was increasing the use of contract staff and our founder Dave Oliver realised that a service…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  South Coast Marine Surveyorssouthcoastmarinesurveyors.co.ukHQ: Southampton, United KingdomReported employees: 1-10 | Southampton, United Kingdom | 1-10 | Exact match | 3 contacts → |
“South Coast Marine Surveyors can provide surveys for private owners or future purchasers of Yachts and Motor Boats.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CMS Offshore LTDmvflatholm.com HQ: Lowestoft, United KingdomReported employees: 1-10 | Lowestoft, United Kingdom | 1-10 | Exact match | 3 contacts → |
“CMS Offshore Ltd owns and operates its own 24m survey vessel which is idea for geotechnical and geophysical surveys, UXO investigations, environmental monitoring, towage, salvage…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Subseaco LTDsubseaco.co.uk HQ: Cardiff, United KingdomReported employees: 1-10 | Cardiff, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Survey vessel operators” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 76 company matches
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Hydrographic survey companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
74 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 76 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for hydrographic survey companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hydrographic survey companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 76 matching company records, 1,031 tracked contacts and 420 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Hydrographic survey companies by geography
Cite this list
RevenueBase Data Team. Top 25 hydrographic survey companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/hydrographic-survey-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Hydrographic survey companies based in Australia
- Hydrographic survey companies based in the Netherlands
- Hydrographic survey companies based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
Company intelligence · public preview
Top 25 hydrographic survey companies based in the United Kingdom
RevenueBase records 76 matching company records for hydrographic survey companies based in the United Kingdom, with 1,031 tracked contacts and 420 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 hydrographic survey companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Gardline Limitedgardline.com HQ: Great Yarmouth, United KingdomReported employees: 501-1,000 | Great Yarmouth, United Kingdom | 501-1,000 | Exact match | 545 contacts → |
“Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | EGS Internationalegssurvey.com HQ: Bordon, United KingdomReported employees: 51-200 | Bordon, United Kingdom | 51-200 | Exact match | 74 contacts → |
“EGS International Ltd (EGSi) is part of a leading international group of companies specialising in marine surveys.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | GPS Marine Contractors LTDgpsmarine.co.uk HQ: Rochester, United KingdomReported employees: 51-200 | Rochester, United Kingdom | 51-200 | Exact match | 44 contacts → |
“Marine Contractors specialising in: Marine Civil Engineering and Construction.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Coda Octopus Productscodaoctopus.com HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Coda Octopus is a global leader and specialist in underwater technologies including being the patent holder for the real-time 3D sonar, the Echoscope®.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Spectrumspectrum-offshore.com HQ: Lymington, United KingdomReported employees: 11-50 | Lymington, United Kingdom | 11-50 | Exact match | 41 contacts → |
“Spectrum specialises in the provision of combined marine survey and crew transfer vessel services to the offshore construction industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Storm Geomatics Limitedstorm-geomatics.com HQ: Shipston On Stour, United KingdomReported employees: 11-50 | Shipston On Stour, United Kingdom | 11-50 | Exact match | 31 contacts → |
“Measurement experts who use innovation to understand river functions and provide knowledge to inform projects that reduce flooding and improve natural habitats.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Aspect Land & Hydrographic Surveys LTDaspectsurveys.com HQ: Irvine, United KingdomReported employees: 11-50 | Irvine, United Kingdom | 11-50 | Exact match | 27 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sterling Global Marine LTDsgsurvey.com HQ: Fordingbridge, United KingdomReported employees: 1-10 | Fordingbridge, United Kingdom | 1-10 | Exact match | 12 contacts → |
“SG Survey are independent marine surveyors providing a first class service, worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | SEP Hydrographicsephydrographic.com HQ: Stanley Industrial Estate, United KingdomReported employees: 1-10 | Stanley Industrial Estate, United Kingdom | 1-10 | Exact match | 11 contacts → |
“SEP Hydrographic Limited was established in 2020 to meet the growing demand for a complete land and marine survey solution.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Macduff Ship Design LTDmacduffshipdesign.com HQ: Macduff, United KingdomReported employees: 11-50 | Macduff, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Macduff Ship Design Ltd are proven industry leaders in the Naval Architecture and Marine Survey sectors, having worked for more than 25 years with owners, operators and shipyards…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ultrabeam Hydrographicultrahydrographic.com HQ: Hayle, United KingdomReported employees: 11-50 | Hayle, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Ultrabeam is a multi-award-winning company specialising in high-definition marine survey and asset inspection.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Caintech LTDcaintechltd.com HQ: Inverness, United KingdomReported employees: 11-50 | Inverness, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Caintech Ltd was first established in August 1988 and worked solely within the offshore Oil sector until May 2005 when we expanded into construction, land and hydrographic…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | CMS Geoscience LTDcms-geoscience.co.uk HQ: Penryn, United KingdomReported employees: 1-10 | Penryn, United Kingdom | 1-10 | Exact match | 10 contacts → |
“CMS began with a simple mission: to provide the marine industry with precise and dependable data that builds confidence from the seabed up.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hydrofixhydrofix.co.uk HQ: Tattenhall, United KingdomReported employees: 1-10 | Tattenhall, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Hydrofix specialises in providing full project lifecycle hydrographic and geophysical support services to the offshore construction industry and service support providers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ocean Phoenix International Limitedoceanphoenix.co.uk HQ: Inverurie, United KingdomReported employees: 1-10 | Inverurie, United Kingdom | 1-10 | Exact match | 9 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Titan Environmental Surveys Limitedtitansurveys.com HQ: Bridgend, United KingdomReported employees: 11-50 | Bridgend, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Titan Environmental Surveys Ltd is a multi-disciplinary marine and environmental surveying company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Shoreline Surveys Limitedshorelinesurveys.com HQ: Dorchester, United KingdomReported employees: 1-10 | Dorchester, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Shoreline Surveys Limited is a research company based out of Moreford Hall, Crossways, United Kingdom.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Randall Surveys LLPrandallsurveys.co.uk HQ: Bures, United KingdomReported employees: 11-50 | Bures, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Randall Surveys LLP is a multi-disciplinary survey practice based in Bures, on the Essex/Suffolk border.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Swathe Servicesswathe-services.com HQ: Hayle, United KingdomReported employees: 1-10 | Hayle, United Kingdom | 1-10 | Exact match | 5 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zeewarriorszeewarriors.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Zeewarriors is a Marine Specialists company, formed to provide a complete marine service to its customers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Picseapicsea.co.uk HQ: Edinburgh, United KingdomReported employees: 1-10 | Edinburgh, United Kingdom | 1-10 | Exact match | 3 contacts → |
“PicSea is an innovative underwater survey and technology company dedicated to revolutionizing subsea data collection.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dave Oliver Hydrographic Services LTDdohs.co.uk HQ: Great Yarmouth, United KingdomReported employees: 1-10 | Great Yarmouth, United Kingdom | 1-10 | Exact match | 3 contacts → |
“DOHS was founded in 1989, at a time when the offshore hydrographic survey industry was increasing the use of contract staff and our founder Dave Oliver realised that a service…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | South Coast Marine Surveyorssouthcoastmarinesurveyors.co.uk HQ: Southampton, United KingdomReported employees: 1-10 | Southampton, United Kingdom | 1-10 | Exact match | 3 contacts → |
“South Coast Marine Surveyors can provide surveys for private owners or future purchasers of Yachts and Motor Boats.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CMS Offshore LTDmvflatholm.com HQ: Lowestoft, United KingdomReported employees: 1-10 | Lowestoft, United Kingdom | 1-10 | Exact match | 3 contacts → |
“CMS Offshore Ltd owns and operates its own 24m survey vessel which is idea for geotechnical and geophysical surveys, UXO investigations, environmental monitoring, towage, salvage…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Subseaco LTDsubseaco.co.uk HQ: Cardiff, United KingdomReported employees: 1-10 | Cardiff, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Survey vessel operators” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 76 company matches
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Hydrographic survey companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
74 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 76 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for hydrographic survey companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hydrographic survey companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 76 matching company records, 1,031 tracked contacts and 420 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Hydrographic survey companies by geography
Cite this list
RevenueBase Data Team. Top 25 hydrographic survey companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/hydrographic-survey-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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