Company lists · Data refreshed September 2026
Top 25 Subsea engineering services worldwide
RevenueBase identified 4,947 subsea engineering services worldwide as of September 2026 and tracks 234,911 professional contacts across them, including 52,522 with verified work emails and 0 with mobile numbers. The United Kingdom is the largest market and Singapore the largest hub.
This list covers subsea engineering services worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 18, 2026. Country and city lists for subsea engineering services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 engineering services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 34,095 contacts → | ||||
Partial evidence “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 12,031 contacts → | ||||
Indirect evidence “Oceaneering is a global technology company delivering engineered services and products and robotic solutions to the offshore energy, defense, aerospace, and manufacturing…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,543 contacts → | ||||
Partial evidence “SLB OneSubsea is the world’s leading subsea technology and solutions provider, focused on accelerating innovation to improve subsea asset performance, while increasing energy…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 6,466 contacts → | ||||
Indirect evidence “Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 6,080 contacts → | ||||
Indirect evidence “With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,942 contacts → | ||||
Partial evidence “With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2,752 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2,643 contacts → | ||||
Indirect evidence “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2,427 contacts → | ||||
Indirect evidence “A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2,213 contacts → | ||||
Partial evidence “OCEÂNICA is a Brazilian company dedicated to providing services and engineering technology solutions for companies with underwater activities” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,890 contacts → | ||||
Partial evidence “Aarvi Encon has established it's leadership in providing Engineering Consultancy and Technical Assistance to Oil & Gas, Refinery, Petrochemical, Pipelines, Power & Infrastructure…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,847 contacts → | ||||
Indirect evidence “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1,829 contacts → | ||||
Indirect evidence “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,706 contacts → | ||||
Indirect evidence “Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,610 contacts → | ||||
Partial evidence “Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,501 contacts → | ||||
Partial evidence “TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,375 contacts → | ||||
Indirect evidence “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,348 contacts → | ||||
Indirect evidence “Founded in 1972, Dragados Offshore S.A.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,279 contacts → | ||||
Partial evidence “(Underwater Engineering) S.A.L was established in 1976.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,216 contacts → | ||||
Partial evidence “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,140 contacts → | ||||
Indirect evidence “Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,108 contacts → | ||||
Indirect evidence “A Belov Engenharia foi criada em 1981 em Salvador/BA, pelo engenheiro Aleixo Belov, que à época desfrutava de uma experiência de 15 anos de participação na condução das maiores…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,031 contacts → | ||||
Indirect evidence “Shearwater is a global marine geoscience and technology business.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 955 contacts → | ||||
Indirect evidence “Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 841 contacts → | ||||
Indirect evidence “MICOPERI has been active in the marine sector since 1946 when the company was incorporated as a salvage company to free the shipping routes from vessels sunk during the Second…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: subsea engineering services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names subsea engineering services.
- Partial evidence
- Its own public description names part of subsea engineering services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name subsea engineering services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 4,947 subsea engineering services worldwide
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Subsea engineering services worldwide at a glance
As of Sep 18, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among subsea engineering services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 29 countries, largest first: the United Kingdom, the United States, Nigeria, Norway, India, the United Arab Emirates, Brazil, the Netherlands, Singapore, Malaysia and 19 more. Country and city lists for subsea engineering services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “subsea engineering services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names subsea engineering services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among subsea engineering services, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 52,522 across the full list. 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 18, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Subsea engineering services by location
31 lists · largest firstEvery Subsea engineering services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsea engineering services based in the United Kingdom873
- Subsea engineering services based in the United States625
- Subsea engineering services based in Nigeria395
- Subsea engineering services based in Norway290
- Subsea engineering services based in India287
- Subsea engineering services based in the United Arab Emirates257
- Subsea engineering services based in Brazil246
- Subsea engineering services based in the Netherlands208
- Subsea engineering services based in Singapore206
- Subsea engineering services based in Malaysia194
- Subsea engineering services based in Australia164
- Subsea engineering services based in Indonesia128
- Subsea engineering services based in Italy118
- Subsea engineering services based in Canada115
- Subsea engineering services based in Germany101
- Subsea engineering services based in France97
- Subsea engineering services based in Türkiye94
- Subsea engineering services based in Spain83
- Subsea engineering services based in Mexico53
- Subsea engineering services based in Denmark52
- Subsea engineering services based in Egypt50
- Subsea engineering services based in Chile49
- Subsea engineering services based in Saudi Arabia48
- Subsea engineering services based in Poland47
- Subsea engineering services based in Greece44
- Subsea engineering services based in South Africa38
- Subsea engineering services based in Sweden33
- Subsea engineering services based in Belgium27
- Subsea engineering services based in Qatar25
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names subsea engineering services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many subsea engineering services are there worldwide?
RevenueBase identified 4,947 subsea engineering services worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Saipem, headquartered in Milan, tops this list with the largest team on record.
Which country has the most subsea engineering services?
The United Kingdom leads with 873 companies, followed by the United States (625) and Nigeria (395). Every subsea engineering services list by country and city is linked on this page.
Which city has the most subsea engineering services?
Singapore leads with 182 headquartered companies, followed by Houston (171) and Aberdeen (147).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 52,522 verified decision-maker contacts tracked across these 4,947 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 2026.
Ready to reach these companies? Verified emails and direct dials for all 4,947 subsea engineering services worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.
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Company intelligence · public preview
Top 25 subsea engineering services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 4,947 matching company records for subsea engineering services worldwide, with 234,911 tracked contacts and 52,522 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 18, 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 engineering services worldwide
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 |  Saipemsaipem.comHQ: Milan, ItalyReported employees: 10001+ | Milan, Italy | 10001+ | Exact match | 34,095 contacts → |
“Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Oceaneeringoceaneering.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 12,031 contacts → |
“Oceaneering is a global technology company delivering engineered services and products and robotic solutions to the offshore energy, defense, aerospace, and manufacturing…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Onesubseaonesubsea.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 6,543 contacts → |
“SLB OneSubsea is the world’s leading subsea technology and solutions provider, focused on accelerating innovation to improve subsea asset performance, while increasing energy…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  EXPROexpro.comHQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 6,466 contacts → |
“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Lamprelllamprell.comHQ: Sharjah, United Arab EmiratesReported employees: 5,001-10,000 | Sharjah, United Arab Emirates | 5,001-10,000 | Exact match | 6,080 contacts → |
“With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  DOFdof.comHQ: Bergen, NorwayReported employees: 5,001-10,000 | Bergen, Norway | 5,001-10,000 | Exact match | 2,942 contacts → |
“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Gran Services S.Agranservices.comHQ: Macaé, BrazilReported employees: 1,001-5,000 | Macaé, Brazil | 1,001-5,000 | Exact match | 2,752 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 |  Heerema Marine Contractorsheerema.comHQ: Leiden, NetherlandsReported employees: 1,001-5,000 | Leiden, Netherlands | 1,001-5,000 | Exact match | 2,643 contacts → |
“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  OCYANocyan-sa.comHQ: Rio De Janeiro, BrazilReported employees: 1,001-5,000 | Rio De Janeiro, Brazil | 1,001-5,000 | Exact match | 2,427 contacts → |
“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Oceanicaoceanica.com.br HQ: Macaé - Rj, BrazilReported employees: 1,001-5,000 | Macaé - Rj, Brazil | 1,001-5,000 | Exact match | 2,213 contacts → |
“OCEÂNICA is a Brazilian company dedicated to providing services and engineering technology solutions for companies with underwater activities” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Aarvi Enconaarviencon.comHQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 1,890 contacts → |
“Aarvi Encon has established it's leadership in providing Engineering Consultancy and Technical Assistance to Oil & Gas, Refinery, Petrochemical, Pipelines, Power & Infrastructure…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Grupo CBOgrupocbo.com.brHQ: Niterói, BrazilReported employees: 1,001-5,000 | Niterói, Brazil | 1,001-5,000 | Exact match | 1,847 contacts → |
“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Groupe Ponticelli Frèresponticelli.comHQ: FranceReported employees: 5,001-10,000 | France | 5,001-10,000 | Exact match | 1,829 contacts → |
“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Helix Energy Solutions Grouphelixesg.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,706 contacts → |
“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Sembcorp Marine LTDsembmarine.comHQ: SingaporeReported employees: 1,001-5,000 | Singapore | 1,001-5,000 | Exact match | 1,610 contacts → |
“Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Tp-Otctp-otc.comHQ: Çankaya, TürkiyeReported employees: 501-1,000 | Çankaya, Türkiye | 501-1,000 | Exact match | 1,501 contacts → |
“TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Deepoceandeepoceangroup.com HQ: Oslo, NorwayReported employees: 1,001-5,000 | Oslo, Norway | 1,001-5,000 | Exact match | 1,375 contacts → |
“DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Dragados Offshoredragadosoffshore.comHQ: 11510 Puerto Real, SpainReported employees: 1,001-5,000 | 11510 Puerto Real, Spain | 1,001-5,000 | Exact match | 1,348 contacts → |
“Founded in 1972, Dragados Offshore S.A.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  CCC Underwater Engineering S.A.Lcccuwe.netHQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 1,279 contacts → |
“(Underwater Engineering) S.A.L was established in 1976.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aries Marine And Engineering Servicesariesmar.com HQ: United Arab EmiratesReported employees: 1,001-5,000 | United Arab Emirates | 1,001-5,000 | Exact match | 1,216 contacts → |
“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  ASNasn.comHQ: Les Ulis, FranceReported employees: 1,001-5,000 | Les Ulis, France | 1,001-5,000 | Exact match | 1,140 contacts → |
“Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  BELOVbelov.com.brHQ: Matriz, BrazilReported employees: 1,001-5,000 | Matriz, Brazil | 1,001-5,000 | Exact match | 1,108 contacts → |
“A Belov Engenharia foi criada em 1981 em Salvador/BA, pelo engenheiro Aleixo Belov, que à época desfrutava de uma experiência de 15 anos de participação na condução das maiores…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Shearwater Geoservicesshearwatergeo.comHQ: Laksevåg, NorwayReported employees: 1,001-5,000 | Laksevåg, Norway | 1,001-5,000 | Exact match | 1,031 contacts → |
“Shearwater is a global marine geoscience and technology business.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Micoperi SRLmicoperi.comHQ: Ravenna, ItalyReported employees: 201-500 | Ravenna, Italy | 201-500 | Exact match | 841 contacts → |
“MICOPERI has been active in the marine sector since 1946 when the company was incorporated as a salvage company to free the shipping routes from vessels sunk during the Second…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,947 company matches
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Subsea engineering services: dataset insights
September 18, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
4,932 records in the displayed employee bands.
15 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 18, 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 engineering services by location
31 lists · largest firstEvery Subsea engineering services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsea engineering services based in the United Kingdom873
- Subsea engineering services based in the United States625
- Subsea engineering services based in Nigeria395
- Subsea engineering services based in Norway290
- Subsea engineering services based in India287
- Subsea engineering services based in the United Arab Emirates257
- Subsea engineering services based in Brazil246
- Subsea engineering services based in the Netherlands208
- Subsea engineering services based in Singapore206
- Subsea engineering services based in Malaysia194
- Subsea engineering services based in Australia164
- Subsea engineering services based in Indonesia128
- Subsea engineering services based in Italy118
- Subsea engineering services based in Canada115
- Subsea engineering services based in Germany101
- Subsea engineering services based in France97
- Subsea engineering services based in Türkiye94
- Subsea engineering services based in Spain83
- Subsea engineering services based in Mexico53
- Subsea engineering services based in Denmark52
- Subsea engineering services based in Egypt50
- Subsea engineering services based in Chile49
- Subsea engineering services based in Saudi Arabia48
- Subsea engineering services based in Poland47
- Subsea engineering services based in Greece44
- Subsea engineering services based in South Africa38
- Subsea engineering services based in Sweden33
- Subsea engineering services based in Belgium27
- Subsea engineering services based in Qatar25
Cities
Questions about this company list
What does Exact match mean for subsea engineering services?
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 engineering services did RevenueBase find worldwide?
The saved snapshot records 4,947 matching company records, 234,911 tracked contacts and 52,522 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 18, 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
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Cite this list
RevenueBase Data Team. Top 25 subsea engineering services worldwide. Snapshot: September 18, 2026. https://revenuebase.ai/companies/browse/subsea-engineering-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 subsea engineering services worldwide
RevenueBase records 4,947 matching company records for subsea engineering services worldwide, with 234,911 tracked contacts and 52,522 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 18, 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 engineering services worldwide
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 | Saipemsaipem.com HQ: Milan, ItalyReported employees: 10001+ | Milan, Italy | 10001+ | Exact match | 34,095 contacts → |
“Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Oceaneeringoceaneering.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 12,031 contacts → |
“Oceaneering is a global technology company delivering engineered services and products and robotic solutions to the offshore energy, defense, aerospace, and manufacturing…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Onesubseaonesubsea.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 6,543 contacts → |
“SLB OneSubsea is the world’s leading subsea technology and solutions provider, focused on accelerating innovation to improve subsea asset performance, while increasing energy…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | EXPROexpro.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 6,466 contacts → |
“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Lamprelllamprell.com HQ: Sharjah, United Arab EmiratesReported employees: 5,001-10,000 | Sharjah, United Arab Emirates | 5,001-10,000 | Exact match | 6,080 contacts → |
“With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | DOFdof.com HQ: Bergen, NorwayReported employees: 5,001-10,000 | Bergen, Norway | 5,001-10,000 | Exact match | 2,942 contacts → |
“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Gran Services S.Agranservices.com HQ: Macaé, BrazilReported employees: 1,001-5,000 | Macaé, Brazil | 1,001-5,000 | Exact match | 2,752 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | Heerema Marine Contractorsheerema.com HQ: Leiden, NetherlandsReported employees: 1,001-5,000 | Leiden, Netherlands | 1,001-5,000 | Exact match | 2,643 contacts → |
“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | OCYANocyan-sa.com HQ: Rio De Janeiro, BrazilReported employees: 1,001-5,000 | Rio De Janeiro, Brazil | 1,001-5,000 | Exact match | 2,427 contacts → |
“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Oceanicaoceanica.com.br HQ: Macaé - Rj, BrazilReported employees: 1,001-5,000 | Macaé - Rj, Brazil | 1,001-5,000 | Exact match | 2,213 contacts → |
“OCEÂNICA is a Brazilian company dedicated to providing services and engineering technology solutions for companies with underwater activities” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Aarvi Enconaarviencon.com HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 1,890 contacts → |
“Aarvi Encon has established it's leadership in providing Engineering Consultancy and Technical Assistance to Oil & Gas, Refinery, Petrochemical, Pipelines, Power & Infrastructure…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grupo CBOgrupocbo.com.br HQ: Niterói, BrazilReported employees: 1,001-5,000 | Niterói, Brazil | 1,001-5,000 | Exact match | 1,847 contacts → |
“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Groupe Ponticelli Frèresponticelli.com HQ: FranceReported employees: 5,001-10,000 | France | 5,001-10,000 | Exact match | 1,829 contacts → |
“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Helix Energy Solutions Grouphelixesg.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,706 contacts → |
“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Sembcorp Marine LTDsembmarine.com HQ: SingaporeReported employees: 1,001-5,000 | Singapore | 1,001-5,000 | Exact match | 1,610 contacts → |
“Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tp-Otctp-otc.com HQ: Çankaya, TürkiyeReported employees: 501-1,000 | Çankaya, Türkiye | 501-1,000 | Exact match | 1,501 contacts → |
“TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Deepoceandeepoceangroup.com HQ: Oslo, NorwayReported employees: 1,001-5,000 | Oslo, Norway | 1,001-5,000 | Exact match | 1,375 contacts → |
“DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Dragados Offshoredragadosoffshore.com HQ: 11510 Puerto Real, SpainReported employees: 1,001-5,000 | 11510 Puerto Real, Spain | 1,001-5,000 | Exact match | 1,348 contacts → |
“Founded in 1972, Dragados Offshore S.A.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | CCC Underwater Engineering S.A.Lcccuwe.net HQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 1,279 contacts → |
“(Underwater Engineering) S.A.L was established in 1976.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aries Marine And Engineering Servicesariesmar.com HQ: United Arab EmiratesReported employees: 1,001-5,000 | United Arab Emirates | 1,001-5,000 | Exact match | 1,216 contacts → |
“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | ASNasn.com HQ: Les Ulis, FranceReported employees: 1,001-5,000 | Les Ulis, France | 1,001-5,000 | Exact match | 1,140 contacts → |
“Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | BELOVbelov.com.br HQ: Matriz, BrazilReported employees: 1,001-5,000 | Matriz, Brazil | 1,001-5,000 | Exact match | 1,108 contacts → |
“A Belov Engenharia foi criada em 1981 em Salvador/BA, pelo engenheiro Aleixo Belov, que à época desfrutava de uma experiência de 15 anos de participação na condução das maiores…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Shearwater Geoservicesshearwatergeo.com HQ: Laksevåg, NorwayReported employees: 1,001-5,000 | Laksevåg, Norway | 1,001-5,000 | Exact match | 1,031 contacts → |
“Shearwater is a global marine geoscience and technology business.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Micoperi SRLmicoperi.com HQ: Ravenna, ItalyReported employees: 201-500 | Ravenna, Italy | 201-500 | Exact match | 841 contacts → |
“MICOPERI has been active in the marine sector since 1946 when the company was incorporated as a salvage company to free the shipping routes from vessels sunk during the Second…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,947 company matches
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Subsea engineering services: dataset insights
September 18, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
4,932 records in the displayed employee bands.
15 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 18, 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 engineering services by location
31 lists · largest firstEvery Subsea engineering services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsea engineering services based in the United Kingdom873
- Subsea engineering services based in the United States625
- Subsea engineering services based in Nigeria395
- Subsea engineering services based in Norway290
- Subsea engineering services based in India287
- Subsea engineering services based in the United Arab Emirates257
- Subsea engineering services based in Brazil246
- Subsea engineering services based in the Netherlands208
- Subsea engineering services based in Singapore206
- Subsea engineering services based in Malaysia194
- Subsea engineering services based in Australia164
- Subsea engineering services based in Indonesia128
- Subsea engineering services based in Italy118
- Subsea engineering services based in Canada115
- Subsea engineering services based in Germany101
- Subsea engineering services based in France97
- Subsea engineering services based in Türkiye94
- Subsea engineering services based in Spain83
- Subsea engineering services based in Mexico53
- Subsea engineering services based in Denmark52
- Subsea engineering services based in Egypt50
- Subsea engineering services based in Chile49
- Subsea engineering services based in Saudi Arabia48
- Subsea engineering services based in Poland47
- Subsea engineering services based in Greece44
- Subsea engineering services based in South Africa38
- Subsea engineering services based in Sweden33
- Subsea engineering services based in Belgium27
- Subsea engineering services based in Qatar25
Cities
Questions about this company list
What does Exact match mean for subsea engineering services?
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 engineering services did RevenueBase find worldwide?
The saved snapshot records 4,947 matching company records, 234,911 tracked contacts and 52,522 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 18, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 subsea engineering services worldwide. Snapshot: September 18, 2026. https://revenuebase.ai/companies/browse/subsea-engineering-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗