Company lists · Data refreshed September 2026
Top 25 Underwater infrastructure companies based in the United Kingdom
RevenueBase identified 228 company matches for underwater infrastructure companies associated with the United Kingdom as of September 2026 and tracks 8,966 professional contacts across them, including 3,461 with verified work emails. Aberdeen is the largest hub.
This list covers company matches for underwater infrastructure 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 22, 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 underwater infrastructure companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 955 contacts → | ||||
Exact match “Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 803 contacts → | ||||
Exact match “Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 516 contacts → | ||||
Exact match “Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 339 contacts → | ||||
Exact match “Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 292 contacts → | ||||
Exact match “SMD is an advanced global designer and manufacturer of subsea remotely operated and autonomous power and control solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 195 contacts → | ||||
Exact match “Part of Radius Group Holdings, Radius Systems is proud to be the pipeline experts for the gas, water, energy, power and telecoms sectors.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 192 contacts → | ||||
Exact match “Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 171 contacts → | ||||
Exact match “Osbit’s vision is to unlock a clean energy future by creating smarter technology.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 161 contacts → | ||||
Exact match “The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 134 contacts → | ||||
Exact match “Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 107 contacts → | ||||
Exact match “James Fisher Offshore (JFO) is an international supplier of marine back deck, specialist subsea equipment and engineering services supporting the global subsea contractors across…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 87 contacts → | ||||
Exact match “Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 85 contacts → | ||||
Exact match “FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 77 contacts → | ||||
Exact match “Jee is a leading independent multi-discipline subsea engineering and training company, delivering integrated services to the oil, gas and renewables industries.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 71 contacts → | ||||
Exact match “With over 40 years of experience, at Hydro Group we specialise in the manufacture of bespoke subsea cable and connector assembly engineering for some of the most demanding…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 70 contacts → | ||||
Exact match “The Global Marine Group is a leading independent provider of submarine cable solutions offering a broad range of services including consultancy, installation and maintenance…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 68 contacts → | ||||
Exact match “Film-Ocean provides innovative subsea solutions to the global offshore energy industry.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 60 contacts → | ||||
Exact match “Offshore Marine Management Holdings is a leading group of companies specialising in the delivery of subsea solutions to the offshore renewables, grid, telecommunications and oil &…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 56 contacts → | ||||
Exact match “We design and supply products for the offshore and subsea industries; specialising in subsea and riser applications enduring fatigue, high strength steel and moving parts.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 54 contacts → | ||||
Exact match “GMC Limited is an engineering, products, and services company specialising in the connection of tubular structures for offshore and subsea applications.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 52 contacts → | ||||
Exact match “Land and Marine Engineering Limited, a part of the Murphy Group of companies is an international engineering and construction company.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 48 contacts → | ||||
Exact match “KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 46 contacts → | ||||
Exact match “EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 44 contacts → | ||||
Exact match “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 41 contacts → | ||||
Exact match “With over 30 years' experience; First Subsea are a trusted provider of subsea products for the offshore wind, oil and gas industries.” Recorded in the RevenueBase company graph · Sep 22, 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 “underwater infrastructure 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 228 underwater infrastructure companies based in the United Kingdom
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Underwater infrastructure companies based in the United Kingdom at a glance
As of Sep 22, 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 228 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 “underwater infrastructure 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 3,461 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 22, 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 “underwater infrastructure companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many underwater infrastructure companies are there based in the United Kingdom?
RevenueBase identified 228 company matches for underwater infrastructure 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?
Altera Infrastructure tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most underwater infrastructure companies?
Aberdeen leads with 32 company records, followed by London (14) and Ellon (5).
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 3,461 professional contacts with verified work emails tracked across these 228 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 228 underwater infrastructure companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Underwater infrastructure companies by geography
- Underwater infrastructure companies based in Australia
- Underwater infrastructure companies based in Brazil
- Underwater infrastructure companies based in Canada
- Underwater infrastructure companies based in Chile
- Underwater infrastructure companies based in France
- Underwater infrastructure companies based in Germany
- Underwater infrastructure companies based in India
- Underwater infrastructure companies based in Indonesia
- Underwater infrastructure companies based in Italy
- Underwater infrastructure companies based in the Netherlands
- Underwater infrastructure companies based in Norway
- Underwater infrastructure companies based in Spain
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
- Underwater infrastructure companies based in Australia
- Underwater infrastructure companies based in Brazil
- Underwater infrastructure companies based in Canada
- Underwater infrastructure companies based in Chile
- Underwater infrastructure companies based in France
- Underwater infrastructure companies based in Germany
Company intelligence · public preview
Top 25 underwater infrastructure 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 228 matching company records for underwater infrastructure companies based in the United Kingdom, with 8,966 tracked contacts and 3,461 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 22, 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 underwater infrastructure 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 |  Altera Infrastructurealterainfra.comHQ: Aberdeenshire, United KingdomReported employees: 501-1,000 | Aberdeenshire, United Kingdom | 501-1,000 | Exact match | 955 contacts → |
“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Barhale LTDbarhale.co.ukHQ: Walsall, United KingdomReported employees: 1,001-5,000 | Walsall, United Kingdom | 1,001-5,000 | Exact match | 803 contacts → |
“Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Boskalis Subsea Servicesboskalis.comHQ: Aberdeen, United KingdomReported employees: 201-500 | Aberdeen, United Kingdom | 201-500 | Exact match | 516 contacts → |
“Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Global Marineglobalmarine.co.ukHQ: Chelmsford, United KingdomReported employees: 501-1,000 | Chelmsford, United Kingdom | 501-1,000 | Exact match | 339 contacts → |
“Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  SMDsmd.co.ukHQ: Wallsend, United KingdomReported employees: 51-200 | Wallsend, United Kingdom | 51-200 | Exact match | 292 contacts → |
“SMD is an advanced global designer and manufacturer of subsea remotely operated and autonomous power and control solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Radius Systemsradius-systems.comHQ: South Normanton, United KingdomReported employees: 201-500 | South Normanton, United Kingdom | 201-500 | Exact match | 195 contacts → |
“Part of Radius Group Holdings, Radius Systems is proud to be the pipeline experts for the gas, water, energy, power and telecoms sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Acteonacteon.comHQ: Norwich, United KingdomReported employees: 1,001-5,000 | Norwich, United Kingdom | 1,001-5,000 | Exact match | 192 contacts → |
“Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  OSBITosbit.comHQ: Northumberland, United KingdomReported employees: 201-500 | Northumberland, United Kingdom | 201-500 | Exact match | 171 contacts → |
“Osbit’s vision is to unlock a clean energy future by creating smarter technology.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Enshore Subseaenshoresubsea.comHQ: Blyth, United KingdomReported employees: 51-200 | Blyth, United Kingdom | 51-200 | Exact match | 161 contacts → |
“The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Interocean Marine Servicesinterocean.co.ukHQ: Portlethen, United KingdomReported employees: 51-200 | Portlethen, United Kingdom | 51-200 | Exact match | 134 contacts → |
“Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | James Fisher Offshorefisheroffshore.com HQ: Oldmeldrum, United KingdomReported employees: 51-200 | Oldmeldrum, United Kingdom | 51-200 | Exact match | 107 contacts → |
“James Fisher Offshore (JFO) is an international supplier of marine back deck, specialist subsea equipment and engineering services supporting the global subsea contractors across…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Shearwater Marine Servicesshearwatermarine.co.ukHQ: Sandbank, United KingdomReported employees: 51-200 | Sandbank, United Kingdom | 51-200 | Exact match | 87 contacts → |
“Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Foundoceanfoundocean.comHQ: Livingston, United KingdomReported employees: 51-200 | Livingston, United Kingdom | 51-200 | Exact match | 85 contacts → |
“FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  JEEjee.co.ukHQ: Tonbridge, United KingdomReported employees: 51-200 | Tonbridge, United Kingdom | 51-200 | Exact match | 77 contacts → |
“Jee is a leading independent multi-discipline subsea engineering and training company, delivering integrated services to the oil, gas and renewables industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hydro Group Ltd, Connected By Trexonhydrogroup-uk.com HQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 71 contacts → |
“With over 40 years of experience, at Hydro Group we specialise in the manufacture of bespoke subsea cable and connector assembly engineering for some of the most demanding…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Global Marine Groupglobalmarine.group HQ: Chelmsford, United KingdomReported employees: 51-200 | Chelmsford, United Kingdom | 51-200 | Exact match | 70 contacts → |
“The Global Marine Group is a leading independent provider of submarine cable solutions offering a broad range of services including consultancy, installation and maintenance…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Film-Oceanfilm-ocean.comHQ: Ellon, United KingdomReported employees: 51-200 | Ellon, United Kingdom | 51-200 | Exact match | 68 contacts → |
“Film-Ocean provides innovative subsea solutions to the global offshore energy industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Offshore Marine Management Holdings LTDoffshoremm.com HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 60 contacts → |
“Offshore Marine Management Holdings is a leading group of companies specialising in the delivery of subsea solutions to the offshore renewables, grid, telecommunications and oil &…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  SRPsrpsubsea.comHQ: Woking, United KingdomReported employees: 11-50 | Woking, United Kingdom | 11-50 | Exact match | 56 contacts → |
“We design and supply products for the offshore and subsea industries; specialising in subsea and riser applications enduring fatigue, high strength steel and moving parts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  GMC Limitedgmcltd.netHQ: Aberdeen, United KingdomReported employees: 11-50 | Aberdeen, United Kingdom | 11-50 | Exact match | 54 contacts → |
“GMC Limited is an engineering, products, and services company specialising in the connection of tubular structures for offshore and subsea applications.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Land And Marine Engineering Limitedlandandmarine.comHQ: Bromborough, United KingdomReported employees: 201-500 | Bromborough, United Kingdom | 201-500 | Exact match | 52 contacts → |
“Land and Marine Engineering Limited, a part of the Murphy Group of companies is an international engineering and construction company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | KD Marine LTDkdmarine.com HQ: Aberdeen, United KingdomReported employees: 11-50 | Aberdeen, United Kingdom | 11-50 | Exact match | 48 contacts → |
“KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Edwards Diving Services LTDedwardsdivingservices.co.uk HQ: Pontypridd, United KingdomReported employees: 51-200 | Pontypridd, United Kingdom | 51-200 | Exact match | 46 contacts → |
“EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | First Subseafirstsubsea.com HQ: Lancaster, United KingdomReported employees: 51-200 | Lancaster, United Kingdom | 51-200 | Exact match | 41 contacts → |
“With over 30 years' experience; First Subsea are a trusted provider of subsea products for the offshore wind, oil and gas industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 228 company matches
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Underwater infrastructure companies: dataset insights
September 22, 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
226 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 228 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 22, 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 underwater infrastructure 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 underwater infrastructure companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 228 matching company records, 8,966 tracked contacts and 3,461 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 22, 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
Underwater infrastructure companies by geography
- Underwater infrastructure companies based in Australia
- Underwater infrastructure companies based in Brazil
- Underwater infrastructure companies based in Canada
- Underwater infrastructure companies based in Chile
- Underwater infrastructure companies based in France
- Underwater infrastructure companies based in Germany
- Underwater infrastructure companies based in India
- Underwater infrastructure companies based in Indonesia
- Underwater infrastructure companies based in Italy
- Underwater infrastructure companies based in the Netherlands
- Underwater infrastructure companies based in Norway
- Underwater infrastructure companies based in Spain
Cite this list
RevenueBase Data Team. Top 25 underwater infrastructure companies based in the United Kingdom. Snapshot: September 22, 2026. https://revenuebase.ai/companies/underwater-infrastructure-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
- Underwater infrastructure companies based in Australia
- Underwater infrastructure companies based in Brazil
- Underwater infrastructure companies based in Canada
- Underwater infrastructure companies based in Chile
- Underwater infrastructure companies based in France
- Underwater infrastructure companies based in Germany
Company intelligence · public preview
Top 25 underwater infrastructure companies based in the United Kingdom
RevenueBase records 228 matching company records for underwater infrastructure companies based in the United Kingdom, with 8,966 tracked contacts and 3,461 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 22, 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 underwater infrastructure 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 | Altera Infrastructurealterainfra.com HQ: Aberdeenshire, United KingdomReported employees: 501-1,000 | Aberdeenshire, United Kingdom | 501-1,000 | Exact match | 955 contacts → |
“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Barhale LTDbarhale.co.uk HQ: Walsall, United KingdomReported employees: 1,001-5,000 | Walsall, United Kingdom | 1,001-5,000 | Exact match | 803 contacts → |
“Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Boskalis Subsea Servicesboskalis.com HQ: Aberdeen, United KingdomReported employees: 201-500 | Aberdeen, United Kingdom | 201-500 | Exact match | 516 contacts → |
“Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Global Marineglobalmarine.co.uk HQ: Chelmsford, United KingdomReported employees: 501-1,000 | Chelmsford, United Kingdom | 501-1,000 | Exact match | 339 contacts → |
“Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | SMDsmd.co.uk HQ: Wallsend, United KingdomReported employees: 51-200 | Wallsend, United Kingdom | 51-200 | Exact match | 292 contacts → |
“SMD is an advanced global designer and manufacturer of subsea remotely operated and autonomous power and control solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Radius Systemsradius-systems.com HQ: South Normanton, United KingdomReported employees: 201-500 | South Normanton, United Kingdom | 201-500 | Exact match | 195 contacts → |
“Part of Radius Group Holdings, Radius Systems is proud to be the pipeline experts for the gas, water, energy, power and telecoms sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Acteonacteon.com HQ: Norwich, United KingdomReported employees: 1,001-5,000 | Norwich, United Kingdom | 1,001-5,000 | Exact match | 192 contacts → |
“Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | OSBITosbit.com HQ: Northumberland, United KingdomReported employees: 201-500 | Northumberland, United Kingdom | 201-500 | Exact match | 171 contacts → |
“Osbit’s vision is to unlock a clean energy future by creating smarter technology.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Enshore Subseaenshoresubsea.com HQ: Blyth, United KingdomReported employees: 51-200 | Blyth, United Kingdom | 51-200 | Exact match | 161 contacts → |
“The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Interocean Marine Servicesinterocean.co.uk HQ: Portlethen, United KingdomReported employees: 51-200 | Portlethen, United Kingdom | 51-200 | Exact match | 134 contacts → |
“Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | James Fisher Offshorefisheroffshore.com HQ: Oldmeldrum, United KingdomReported employees: 51-200 | Oldmeldrum, United Kingdom | 51-200 | Exact match | 107 contacts → |
“James Fisher Offshore (JFO) is an international supplier of marine back deck, specialist subsea equipment and engineering services supporting the global subsea contractors across…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Shearwater Marine Servicesshearwatermarine.co.uk HQ: Sandbank, United KingdomReported employees: 51-200 | Sandbank, United Kingdom | 51-200 | Exact match | 87 contacts → |
“Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Foundoceanfoundocean.com HQ: Livingston, United KingdomReported employees: 51-200 | Livingston, United Kingdom | 51-200 | Exact match | 85 contacts → |
“FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | JEEjee.co.uk HQ: Tonbridge, United KingdomReported employees: 51-200 | Tonbridge, United Kingdom | 51-200 | Exact match | 77 contacts → |
“Jee is a leading independent multi-discipline subsea engineering and training company, delivering integrated services to the oil, gas and renewables industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hydro Group Ltd, Connected By Trexonhydrogroup-uk.com HQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 71 contacts → |
“With over 40 years of experience, at Hydro Group we specialise in the manufacture of bespoke subsea cable and connector assembly engineering for some of the most demanding…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Global Marine Groupglobalmarine.group HQ: Chelmsford, United KingdomReported employees: 51-200 | Chelmsford, United Kingdom | 51-200 | Exact match | 70 contacts → |
“The Global Marine Group is a leading independent provider of submarine cable solutions offering a broad range of services including consultancy, installation and maintenance…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Film-Oceanfilm-ocean.com HQ: Ellon, United KingdomReported employees: 51-200 | Ellon, United Kingdom | 51-200 | Exact match | 68 contacts → |
“Film-Ocean provides innovative subsea solutions to the global offshore energy industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Offshore Marine Management Holdings LTDoffshoremm.com HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 60 contacts → |
“Offshore Marine Management Holdings is a leading group of companies specialising in the delivery of subsea solutions to the offshore renewables, grid, telecommunications and oil &…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | SRPsrpsubsea.com HQ: Woking, United KingdomReported employees: 11-50 | Woking, United Kingdom | 11-50 | Exact match | 56 contacts → |
“We design and supply products for the offshore and subsea industries; specialising in subsea and riser applications enduring fatigue, high strength steel and moving parts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | GMC Limitedgmcltd.net HQ: Aberdeen, United KingdomReported employees: 11-50 | Aberdeen, United Kingdom | 11-50 | Exact match | 54 contacts → |
“GMC Limited is an engineering, products, and services company specialising in the connection of tubular structures for offshore and subsea applications.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Land And Marine Engineering Limitedlandandmarine.com HQ: Bromborough, United KingdomReported employees: 201-500 | Bromborough, United Kingdom | 201-500 | Exact match | 52 contacts → |
“Land and Marine Engineering Limited, a part of the Murphy Group of companies is an international engineering and construction company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | KD Marine LTDkdmarine.com HQ: Aberdeen, United KingdomReported employees: 11-50 | Aberdeen, United Kingdom | 11-50 | Exact match | 48 contacts → |
“KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Edwards Diving Services LTDedwardsdivingservices.co.uk HQ: Pontypridd, United KingdomReported employees: 51-200 | Pontypridd, United Kingdom | 51-200 | Exact match | 46 contacts → |
“EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | First Subseafirstsubsea.com HQ: Lancaster, United KingdomReported employees: 51-200 | Lancaster, United Kingdom | 51-200 | Exact match | 41 contacts → |
“With over 30 years' experience; First Subsea are a trusted provider of subsea products for the offshore wind, oil and gas industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 228 company matches
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Underwater infrastructure companies: dataset insights
September 22, 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
226 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 228 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 22, 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 underwater infrastructure 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 underwater infrastructure companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 228 matching company records, 8,966 tracked contacts and 3,461 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 22, 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.
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Cite this list
RevenueBase Data Team. Top 25 underwater infrastructure companies based in the United Kingdom. Snapshot: September 22, 2026. https://revenuebase.ai/companies/underwater-infrastructure-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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