Company lists · Data refreshed November 2026
Top 25 Subsea systems integrators based in the United Kingdom
RevenueBase identified 452 company matches for subsea systems integrators associated with the United Kingdom as of November 2026 and tracks 18,680 professional contacts across them, including 6,879 with verified work emails. Aberdeen is the largest hub.
This list covers company matches for subsea systems integrators associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 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 subsea systems integrators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 972 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 564 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 492 contacts → | ||||
Exact match “Ponticelli, Brand and Semco joined forces in 2019 to establish “PBS by Ponticelli”, an Aberdeen-based integrated services consortium led by Ponticelli.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 389 contacts → | ||||
Exact match “Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 374 contacts → | ||||
Exact match “What we do | With a focus on operational technology and digital transformation, Capula has been a leader in advanced system integration for decades; optimising efficiency &…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 371 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 288 contacts → | ||||
Exact match “Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 262 contacts → | ||||
Exact match “For organisations facing the compounding threats of ageing assets, a retiring workforce, and evolving cyber attacks, the status quo is no longer an option.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 232 contacts → | ||||
Exact match “Sulmara is a global seabed intelligence company, capturing and interpreting high-quality subsea data to enable smarter offshore decisions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 193 contacts → | ||||
Exact match “Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 190 contacts → | ||||
Exact match “The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 189 contacts → | ||||
Exact match “Express Engineering manufacturer turnkey products that control and connect subsea equipment.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 150 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 147 contacts → | ||||
Exact match “MDL - We Build Innovation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 125 contacts → | ||||
Exact match “BEL Valves designs, manufactures and maintains high integrity valves and actuators for subsea, surface and onshore applications.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 109 contacts → | ||||
Exact match “In May 2025, Bilfinger Group welcomed nZero Group (Thyson Technology & Orbital Gas Systems) into their UK Engineering and Maintenance business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 105 contacts → | ||||
Exact match “Viper Innovations is a global engineering specialist delivering intelligent electrical integrity solutions that help organisations optimise performance and prevent failures before…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 103 contacts → | ||||
Exact match “Optilan is a leading independent security and communications systems integrator worldwide.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 94 contacts → | ||||
Exact match “Andrews Survey is predominantly active in construction and trenching support, ROV pipeline inspection support, renewable energy and wind-farm installation support and rig…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 93 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 83 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 81 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 81 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 77 contacts → | ||||
Exact match “CMS2 has over 60-years’ experience of designing, developing, manufacturing and supporting atmosphere management and life support systems for submarines and other critical…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 73 contacts → | ||||
Exact match “Established in 1986, Fibron has become widely recognised as a leading supplier of bespoke umbilicals, cables and terminations to some of the most complex and challenging offshore…” Recorded in the RevenueBase company graph · Nov 5, 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 “subsea systems integrators”. 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 452 subsea systems integrators based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 6,879 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Subsea systems integrators based in the United Kingdom at a glance
As of Nov 5, 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 452 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 “subsea systems integrators” 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 6,879 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 5, 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.
Subsea systems integrators by metro
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 “subsea systems integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many subsea systems integrators are there based in the United Kingdom?
RevenueBase identified 452 company matches for subsea systems integrators associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Altera Infrastructure tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most subsea systems integrators?
Aberdeen leads with 80 company records, followed by London (25) and Bristol (10).
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 6,879 professional contacts with verified work emails tracked across these 452 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 452 subsea systems integrators based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Subsea systems integrators by geography
- Subsea systems integrators based in Rio De Janeiro, Brazil
- Subsea systems integrators based in Dubai, United Arab Emirates
- Subsea systems integrators based in Aberdeen, United Kingdom
- Subsea systems integrators based in London, United Kingdom
- Subsea systems integrators based in Houston, United States
- Subsea systems integrators based in Australia
- Subsea systems integrators based in Brazil
- Subsea systems integrators based in Canada
- Subsea systems integrators based in Denmark
- Subsea systems integrators based in France
- Subsea systems integrators based in Germany
- Subsea systems integrators based in India
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
- Subsea systems integrators based in Rio De Janeiro, Brazil
- Subsea systems integrators based in Dubai, United Arab Emirates
- Subsea systems integrators based in Aberdeen, United Kingdom
- Subsea systems integrators based in London, United Kingdom
- Subsea systems integrators based in Houston, United States
- Subsea systems integrators based in Australia
Company intelligence · public preview
Top 25 subsea systems integrators 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 452 matching company records for subsea systems integrators based in the United Kingdom, with 18,680 tracked contacts and 6,879 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: November 5, 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 subsea systems integrators 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 | 972 contacts → |
“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Boskalis Subsea Servicesboskalis.comHQ: Aberdeen, United KingdomReported employees: 201-500 | Aberdeen, United Kingdom | 201-500 | Exact match | 564 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  PBS By Ponticellipbs-offshore.comHQ: Westhill, United KingdomReported employees: 501-1,000 | Westhill, United Kingdom | 501-1,000 | Exact match | 492 contacts → |
“Ponticelli, Brand and Semco joined forces in 2019 to establish “PBS by Ponticelli”, an Aberdeen-based integrated services consortium led by Ponticelli.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Trinity Fire & Security Systemstrinityfireandsecurity.comHQ: Exeter, United KingdomReported employees: 501-1,000 | Exeter, United Kingdom | 501-1,000 | Exact match | 389 contacts → |
“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Capulacapula.comHQ: Stone, United KingdomReported employees: 201-500 | Stone, United Kingdom | 201-500 | Exact match | 374 contacts → |
“What we do | With a focus on operational technology and digital transformation, Capula has been a leader in advanced system integration for decades; optimising efficiency &…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Global Marineglobalmarine.co.ukHQ: Chelmsford, United KingdomReported employees: 501-1,000 | Chelmsford, United Kingdom | 501-1,000 | Exact match | 371 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Claxton Engineering Servicesclaxtonengineering.comHQ: Great Yarmouth, United KingdomReported employees: 201-500 | Great Yarmouth, United Kingdom | 201-500 | Exact match | 288 contacts → |
“Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ITI Groupitigroup.comHQ: Sheffield, United KingdomReported employees: 201-500 | Sheffield, United Kingdom | 201-500 | Exact match | 262 contacts → |
“For organisations facing the compounding threats of ageing assets, a retiring workforce, and evolving cyber attacks, the status quo is no longer an option.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Sulmarasulmara.comHQ: Glasgow, United KingdomReported employees: 201-500 | Glasgow, United Kingdom | 201-500 | Exact match | 232 contacts → |
“Sulmara is a global seabed intelligence company, capturing and interpreting high-quality subsea data to enable smarter offshore decisions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Acteonacteon.comHQ: Norwich, United KingdomReported employees: 1,001-5,000 | Norwich, United Kingdom | 1,001-5,000 | Exact match | 193 contacts → |
“Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Enshore Subseaenshoresubsea.comHQ: Blyth, United KingdomReported employees: 51-200 | Blyth, United Kingdom | 51-200 | Exact match | 190 contacts → |
“The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Express Engineeringexpress-engineering.co.ukHQ: Gateshead, United KingdomReported employees: 201-500 | Gateshead, United Kingdom | 201-500 | Exact match | 189 contacts → |
“Express Engineering manufacturer turnkey products that control and connect subsea equipment.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Interocean Marine Servicesinterocean.co.ukHQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 150 contacts → |
“Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Maritime Developments Limitedmaritimedevelopments.comHQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 147 contacts → |
“MDL - We Build Innovation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  BEL Valvesbelvalves.comHQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 125 contacts → |
“BEL Valves designs, manufactures and maintains high integrity valves and actuators for subsea, surface and onshore applications.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Orbital GAS Systems Bilfinger Nzeroorbital-uk.comHQ: Stone, United KingdomReported employees: 51-200 | Stone, United Kingdom | 51-200 | Exact match | 109 contacts → |
“In May 2025, Bilfinger Group welcomed nZero Group (Thyson Technology & Orbital Gas Systems) into their UK Engineering and Maintenance business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Viper Innovations LTDviperinnovations.comHQ: Portishead, United KingdomReported employees: 51-200 | Portishead, United Kingdom | 51-200 | Exact match | 105 contacts → |
“Viper Innovations is a global engineering specialist delivering intelligent electrical integrity solutions that help organisations optimise performance and prevent failures before…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Optilanoptilan.comHQ: Royal Leamington Spa, United KingdomReported employees: 201-500 | Royal Leamington Spa, United Kingdom | 201-500 | Exact match | 103 contacts → |
“Optilan is a leading independent security and communications systems integrator worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Andrews Surveyandrewssurvey.comHQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Andrews Survey is predominantly active in construction and trenching support, ROV pipeline inspection support, renewable energy and wind-farm installation support and rig…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Shearwater Marine Servicesshearwatermarine.co.ukHQ: Sandbank, United KingdomReported employees: 51-200 | Sandbank, United Kingdom | 51-200 | Exact match | 93 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  JEEjee.co.ukHQ: Tonbridge, United KingdomReported employees: 51-200 | Tonbridge, United Kingdom | 51-200 | Exact match | 83 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Global Marine Groupglobalmarine.groupHQ: Chelmsford, United KingdomReported employees: 51-200 | Chelmsford, United Kingdom | 51-200 | Exact match | 81 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | James Fisher Offshorefisheroffshore.com HQ: Oldmeldrum, United KingdomReported employees: 51-200 | Oldmeldrum, United Kingdom | 51-200 | Exact match | 81 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Cms2cms2.comHQ: Portsmouth, United KingdomReported employees: 201-500 | Portsmouth, United Kingdom | 201-500 | Exact match | 77 contacts → |
“CMS2 has over 60-years’ experience of designing, developing, manufacturing and supporting atmosphere management and life support systems for submarines and other critical…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Fibronfibron.comHQ: Hoddesdon, United KingdomReported employees: 51-200 | Hoddesdon, United Kingdom | 51-200 | Exact match | 73 contacts → |
“Established in 1986, Fibron has become widely recognised as a leading supplier of bespoke umbilicals, cables and terminations to some of the most complex and challenging offshore…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 452 company matches
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Subsea systems integrators: dataset insights
November 5, 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
446 records in the displayed employee bands.
6 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 452 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: November 5, 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 ↗
Subsea systems integrators by metro
Questions about this company list
What does Exact match mean for subsea systems integrators?
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 subsea systems integrators did RevenueBase find based in the United Kingdom?
The saved snapshot records 452 matching company records, 18,680 tracked contacts and 6,879 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: November 5, 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
Subsea systems integrators by geography
- Subsea systems integrators based in Rio De Janeiro, Brazil
- Subsea systems integrators based in Dubai, United Arab Emirates
- Subsea systems integrators based in Aberdeen, United Kingdom
- Subsea systems integrators based in London, United Kingdom
- Subsea systems integrators based in Houston, United States
- Subsea systems integrators based in Australia
- Subsea systems integrators based in Brazil
- Subsea systems integrators based in Canada
- Subsea systems integrators based in Denmark
- Subsea systems integrators based in France
- Subsea systems integrators based in Germany
- Subsea systems integrators based in India
Cite this list
RevenueBase Data Team. Top 25 subsea systems integrators based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/subsea-systems-integrators/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
- Subsea systems integrators based in Rio De Janeiro, Brazil
- Subsea systems integrators based in Dubai, United Arab Emirates
- Subsea systems integrators based in Aberdeen, United Kingdom
- Subsea systems integrators based in London, United Kingdom
- Subsea systems integrators based in Houston, United States
- Subsea systems integrators based in Australia
Company intelligence · public preview
Top 25 subsea systems integrators based in the United Kingdom
RevenueBase records 452 matching company records for subsea systems integrators based in the United Kingdom, with 18,680 tracked contacts and 6,879 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: November 5, 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 subsea systems integrators 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 | 972 contacts → |
“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Boskalis Subsea Servicesboskalis.com HQ: Aberdeen, United KingdomReported employees: 201-500 | Aberdeen, United Kingdom | 201-500 | Exact match | 564 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | PBS By Ponticellipbs-offshore.com HQ: Westhill, United KingdomReported employees: 501-1,000 | Westhill, United Kingdom | 501-1,000 | Exact match | 492 contacts → |
“Ponticelli, Brand and Semco joined forces in 2019 to establish “PBS by Ponticelli”, an Aberdeen-based integrated services consortium led by Ponticelli.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Trinity Fire & Security Systemstrinityfireandsecurity.com HQ: Exeter, United KingdomReported employees: 501-1,000 | Exeter, United Kingdom | 501-1,000 | Exact match | 389 contacts → |
“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Capulacapula.com HQ: Stone, United KingdomReported employees: 201-500 | Stone, United Kingdom | 201-500 | Exact match | 374 contacts → |
“What we do | With a focus on operational technology and digital transformation, Capula has been a leader in advanced system integration for decades; optimising efficiency &…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Global Marineglobalmarine.co.uk HQ: Chelmsford, United KingdomReported employees: 501-1,000 | Chelmsford, United Kingdom | 501-1,000 | Exact match | 371 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Claxton Engineering Servicesclaxtonengineering.com HQ: Great Yarmouth, United KingdomReported employees: 201-500 | Great Yarmouth, United Kingdom | 201-500 | Exact match | 288 contacts → |
“Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ITI Groupitigroup.com HQ: Sheffield, United KingdomReported employees: 201-500 | Sheffield, United Kingdom | 201-500 | Exact match | 262 contacts → |
“For organisations facing the compounding threats of ageing assets, a retiring workforce, and evolving cyber attacks, the status quo is no longer an option.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sulmarasulmara.com HQ: Glasgow, United KingdomReported employees: 201-500 | Glasgow, United Kingdom | 201-500 | Exact match | 232 contacts → |
“Sulmara is a global seabed intelligence company, capturing and interpreting high-quality subsea data to enable smarter offshore decisions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Acteonacteon.com HQ: Norwich, United KingdomReported employees: 1,001-5,000 | Norwich, United Kingdom | 1,001-5,000 | Exact match | 193 contacts → |
“Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Enshore Subseaenshoresubsea.com HQ: Blyth, United KingdomReported employees: 51-200 | Blyth, United Kingdom | 51-200 | Exact match | 190 contacts → |
“The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Express Engineeringexpress-engineering.co.uk HQ: Gateshead, United KingdomReported employees: 201-500 | Gateshead, United Kingdom | 201-500 | Exact match | 189 contacts → |
“Express Engineering manufacturer turnkey products that control and connect subsea equipment.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Interocean Marine Servicesinterocean.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 150 contacts → |
“Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Maritime Developments Limitedmaritimedevelopments.com HQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 147 contacts → |
“MDL - We Build Innovation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | BEL Valvesbelvalves.com HQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 125 contacts → |
“BEL Valves designs, manufactures and maintains high integrity valves and actuators for subsea, surface and onshore applications.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Orbital GAS Systems Bilfinger Nzeroorbital-uk.com HQ: Stone, United KingdomReported employees: 51-200 | Stone, United Kingdom | 51-200 | Exact match | 109 contacts → |
“In May 2025, Bilfinger Group welcomed nZero Group (Thyson Technology & Orbital Gas Systems) into their UK Engineering and Maintenance business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Viper Innovations LTDviperinnovations.com HQ: Portishead, United KingdomReported employees: 51-200 | Portishead, United Kingdom | 51-200 | Exact match | 105 contacts → |
“Viper Innovations is a global engineering specialist delivering intelligent electrical integrity solutions that help organisations optimise performance and prevent failures before…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Optilanoptilan.com HQ: Royal Leamington Spa, United KingdomReported employees: 201-500 | Royal Leamington Spa, United Kingdom | 201-500 | Exact match | 103 contacts → |
“Optilan is a leading independent security and communications systems integrator worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Andrews Surveyandrewssurvey.com HQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Andrews Survey is predominantly active in construction and trenching support, ROV pipeline inspection support, renewable energy and wind-farm installation support and rig…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Shearwater Marine Servicesshearwatermarine.co.uk HQ: Sandbank, United KingdomReported employees: 51-200 | Sandbank, United Kingdom | 51-200 | Exact match | 93 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | JEEjee.co.uk HQ: Tonbridge, United KingdomReported employees: 51-200 | Tonbridge, United Kingdom | 51-200 | Exact match | 83 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Global Marine Groupglobalmarine.group HQ: Chelmsford, United KingdomReported employees: 51-200 | Chelmsford, United Kingdom | 51-200 | Exact match | 81 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | James Fisher Offshorefisheroffshore.com HQ: Oldmeldrum, United KingdomReported employees: 51-200 | Oldmeldrum, United Kingdom | 51-200 | Exact match | 81 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Cms2cms2.com HQ: Portsmouth, United KingdomReported employees: 201-500 | Portsmouth, United Kingdom | 201-500 | Exact match | 77 contacts → |
“CMS2 has over 60-years’ experience of designing, developing, manufacturing and supporting atmosphere management and life support systems for submarines and other critical…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Fibronfibron.com HQ: Hoddesdon, United KingdomReported employees: 51-200 | Hoddesdon, United Kingdom | 51-200 | Exact match | 73 contacts → |
“Established in 1986, Fibron has become widely recognised as a leading supplier of bespoke umbilicals, cables and terminations to some of the most complex and challenging offshore…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Subsea systems integrators: dataset insights
November 5, 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
446 records in the displayed employee bands.
6 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 452 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: November 5, 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 ↗
Subsea systems integrators by metro
Questions about this company list
What does Exact match mean for subsea systems integrators?
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 subsea systems integrators did RevenueBase find based in the United Kingdom?
The saved snapshot records 452 matching company records, 18,680 tracked contacts and 6,879 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: November 5, 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
Subsea systems integrators by geography
- Subsea systems integrators based in Rio De Janeiro, Brazil
- Subsea systems integrators based in Dubai, United Arab Emirates
- Subsea systems integrators based in Aberdeen, United Kingdom
- Subsea systems integrators based in London, United Kingdom
- Subsea systems integrators based in Houston, United States
- Subsea systems integrators based in Australia
- Subsea systems integrators based in Brazil
- Subsea systems integrators based in Canada
- Subsea systems integrators based in Denmark
- Subsea systems integrators based in France
- Subsea systems integrators based in Germany
- Subsea systems integrators based in India
Cite this list
RevenueBase Data Team. Top 25 subsea systems integrators based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/subsea-systems-integrators/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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- Subsea systems integrators based in Dubai, United Arab Emirates
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