Company lists · Data refreshed November 2026
Top 25 Subsea equipment maintenance services worldwide
RevenueBase identified 3,922 company matches for subsea equipment maintenance services worldwide as of November 2026 and tracks 99,128 professional contacts across them, including 15,318 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers company matches for subsea equipment maintenance services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for subsea equipment maintenance services follow the table.
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 equipment maintenance services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,473 contacts → | ||||
Exact match “Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 2,408 contacts → | ||||
Exact match “Rov company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 2,402 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 2,035 contacts → | ||||
Exact match “Dietsmann is the leading independent specialist in Operation & Maintenance services for continuous-production plant in the oil & gas and power industries with over 40 years of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 1,847 contacts → | ||||
Exact match “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 1,814 contacts → | ||||
Exact match “Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 1,607 contacts → | ||||
Exact match “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 1,353 contacts → | ||||
Exact match “With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 1,344 contacts → | ||||
Exact match “(Underwater Engineering) S.A.L was established in 1976.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 1,319 contacts → | ||||
Exact match “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 871 contacts → | ||||
Exact match “NDT Global is the leading provider of inline diagnostic solutions, advanced data insights, subsea inspection, and integrity management services that safeguard energy-sector…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 816 contacts → | ||||
Exact match “With offices in Abu Dhabi, Dubai, Qatar and Singapore, Allianz Middle East Ship Management LLC(Allianz-ME) is a well-established marine contractors providing modern Offshore…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 759 contacts → | ||||
Exact match “Yantai CIMC Raffles Offshore Technology Group Co, Ltd.(“CIMC Raffles”) is a leading offshore engineering and high-end marine equipment group in China, with a strong focus on the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 692 contacts → | ||||
Exact match “Oceaneering International, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 687 contacts → | ||||
Exact match “A SISTAC é líder no segmento de inspeção, manutenção e reparo offshore na indústria de óleo e gás no Brasil, através de acesso com embarcações de apoio marítimo, mergulhadores…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 649 contacts → | ||||
Exact match “Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 643 contacts → | ||||
Exact match “Unique Group is a leading specialist and integrated engineering solutions provider across the global subsea, renewables, oil and gas, and defence industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 637 contacts → | ||||
Exact match “Somos uma empresa especializada em serviços de trabalho em altura, com foco em inspeção, reparo e manutenção nos setores naval e industrial.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 603 contacts → | ||||
Exact match “ABOUT US We are a multinational inspection, repair and maintenance company that operates in the oil, gas and energy sector with Efficiency, Safety and Sustainability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 581 contacts → | ||||
Exact match “October 2021.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 575 contacts → | ||||
Exact match “Seagems is a Brazilian company specialized in subsea services, a joint venture between two international key players in their markets, Paratus Energy and Sapura Energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 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 6, 2026 · View company records in RevenueBase | |||||
| 23 | 541 contacts → | ||||
Exact match “ASSO group is a technology driven company specialized to provide services and sub-sea equipment for underwater works in the marine and offshore field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 538 contacts → | ||||
Exact match “Island Offshore - The Island Offshore Group is a leading provider of services to the offshore industry ranging from Platform Supply, Walk-to-work and Anchor Handling to Advanced…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 488 contacts → | ||||
Exact match “Reach Subsea is an offshore contractor delivering subsea services and ocean data, survey, inspection, maintenance and repair, and construction support for offshore energy and…” Recorded in the RevenueBase company graph · Nov 6, 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 equipment maintenance services”. 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 3,922 subsea equipment maintenance services worldwide
See the full list, filter by size, metro and specialty, and access 15,318 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Subsea equipment maintenance services worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for subsea equipment maintenance services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “subsea equipment maintenance services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. 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 15,318 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Subsea equipment maintenance services by location
32 lists · largest firstEvery Subsea equipment maintenance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsea equipment maintenance services based in the United States338
- Subsea equipment maintenance services based in the United Kingdom314
- Subsea equipment maintenance services based in Brazil270
- Subsea equipment maintenance services based in the United Arab Emirates193
- Subsea equipment maintenance services based in India164
- Subsea equipment maintenance services based in Türkiye144
- Subsea equipment maintenance services based in Norway138
- Subsea equipment maintenance services based in the Netherlands128
- Subsea equipment maintenance services based in Malaysia101
- Subsea equipment maintenance services based in Italy96
- Subsea equipment maintenance services based in Australia92
- Subsea equipment maintenance services based in Nigeria90
- Subsea equipment maintenance services based in France83
- Subsea equipment maintenance services based in Spain74
- Subsea equipment maintenance services based in Indonesia68
- Subsea equipment maintenance services based in China60
- Subsea equipment maintenance services based in Greece60
- Subsea equipment maintenance services based in Germany53
- Subsea equipment maintenance services based in Canada50
- Subsea equipment maintenance services based in Sweden47
- Subsea equipment maintenance services based in Mexico44
- Subsea equipment maintenance services based in Saudi Arabia41
- Subsea equipment maintenance services based in South Africa31
- Subsea equipment maintenance services based in Denmark29
Cities
- Subsea equipment maintenance services based in Dubai, United Arab Emirates79
- Subsea equipment maintenance services based in Houston, United States69
- Subsea equipment maintenance services based in Istanbul, Türkiye63
- Subsea equipment maintenance services based in Aberdeen, United Kingdom55
- Subsea equipment maintenance services based in Rio De Janeiro, Brazil54
- Subsea equipment maintenance services based in Abu Dhabi, United Arab Emirates32
- Subsea equipment maintenance services based in Macae, Brazil29
- Subsea equipment maintenance services based in Niteroi, Brazil28
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 equipment maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many subsea equipment maintenance services are there worldwide?
RevenueBase identified 3,922 company matches for subsea equipment maintenance services worldwide 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?
Zamil Offshore Services Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most subsea equipment maintenance services?
The United States leads with 338 companies, followed by the United Kingdom (314) and Brazil (270). Every subsea equipment maintenance services list by country and city is linked on this page.
Which city has the most subsea equipment maintenance services?
Singapore leads with 119 company records, followed by Dubai (80) and Houston (69).
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 15,318 professional contacts with verified work emails tracked across these 3,922 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,922 subsea equipment maintenance 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 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
Company intelligence · public preview
Top 25 subsea equipment maintenance 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 3,922 matching company records for subsea equipment maintenance services worldwide, with 99,128 tracked contacts and 15,318 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 6, 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 equipment maintenance 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 |  Zamil Offshore Services Companyzamiloffshore.comHQ: Al-khobar, Saudi ArabiaReported employees: 1,001-5,000 | Al-khobar, Saudi Arabia | 1,001-5,000 | Exact match | 2,473 contacts → |
“Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Free Lancerc-innovation.comHQ: BrazilReported employees: Not recorded | Brazil | Not recorded | Exact match | 2,408 contacts → |
“Rov company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  OCYANocyan-sa.comHQ: Rio De Janeiro, BrazilReported employees: 1,001-5,000 | Rio De Janeiro, Brazil | 1,001-5,000 | Exact match | 2,402 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Dietsmanndietsmann.comHQ: Fontvieille, MonacoReported employees: 5,001-10,000 | Fontvieille, Monaco | 5,001-10,000 | Exact match | 2,035 contacts → |
“Dietsmann is the leading independent specialist in Operation & Maintenance services for continuous-production plant in the oil & gas and power industries with over 40 years of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Helix Energy Solutions Grouphelixesg.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,814 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Deepoceandeepoceangroup.comHQ: Oslo, NorwayReported employees: 1,001-5,000 | Oslo, Norway | 1,001-5,000 | Exact match | 1,607 contacts → |
“DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Maersk Supply Servicemaersksupplyservice.comHQ: Rio De Janeiro, BrazilReported employees: 201-500 | Rio De Janeiro, Brazil | 201-500 | Exact match | 1,353 contacts → |
“With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  CCC Underwater Engineering S.A.Lcccuwe.netHQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 1,344 contacts → |
“(Underwater Engineering) S.A.L was established in 1976.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Aries Energyariesmar.comHQ: United Arab EmiratesReported employees: 1,001-5,000 | United Arab Emirates | 1,001-5,000 | Exact match | 1,319 contacts → |
“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  NDT Globalndt-global.comHQ: Québec, QC, CanadaReported employees: 1,001-5,000 | Québec, QC, Canada | 1,001-5,000 | Exact match | 871 contacts → |
“NDT Global is the leading provider of inline diagnostic solutions, advanced data insights, subsea inspection, and integrity management services that safeguard energy-sector…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Allianz Middle East Ship Management LLCallianz-me.comHQ: Abu Dhabi, United Arab EmiratesReported employees: 1,001-5,000 | Abu Dhabi, United Arab Emirates | 1,001-5,000 | Exact match | 816 contacts → |
“With offices in Abu Dhabi, Dubai, Qatar and Singapore, Allianz Middle East Ship Management LLC(Allianz-ME) is a well-established marine contractors providing modern Offshore…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Yantai Cimc Raffles Offshore LTDcimc-raffles.comHQ: Yantai, ChinaReported employees: 10001+ | Yantai, China | 10001+ | Exact match | 759 contacts → |
“Yantai CIMC Raffles Offshore Technology Group Co, Ltd.(“CIMC Raffles”) is a leading offshore engineering and high-end marine equipment group in China, with a strong focus on the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  C & C Technologies, INCoceaneering.comHQ: Lafayette, LA, United StatesReported employees: 501-1,000 | Lafayette, LA, United States | 501-1,000 | Exact match | 692 contacts → |
“Oceaneering International, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Sistacsistac.com.brHQ: Macaé, BrazilReported employees: 501-1,000 | Macaé, Brazil | 501-1,000 | Exact match | 687 contacts → |
“A SISTAC é líder no segmento de inspeção, manutenção e reparo offshore na indústria de óleo e gás no Brasil, através de acesso com embarcações de apoio marítimo, mergulhadores…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Worldwide Oilfield Machinewomgroup.comHQ: Houston, United StatesReported employees: 1,001-5,000 | Houston, United States | 1,001-5,000 | Exact match | 649 contacts → |
“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Unique Groupuniquegroup.comHQ: Sharjah, United Arab EmiratesReported employees: 501-1,000 | Sharjah, United Arab Emirates | 501-1,000 | Exact match | 643 contacts → |
“Unique Group is a leading specialist and integrated engineering solutions provider across the global subsea, renewables, oil and gas, and defence industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Vertical Groupverticalgroup.com.brHQ: Niterói, BrazilReported employees: 501-1,000 | Niterói, Brazil | 501-1,000 | Exact match | 637 contacts → |
“Somos uma empresa especializada em serviços de trabalho em altura, com foco em inspeção, reparo e manutenção nos setores naval e industrial.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Qualitech IRMqualitechirm.comHQ: Rio De Janeiro, BrazilReported employees: 501-1,000 | Rio De Janeiro, Brazil | 501-1,000 | Exact match | 603 contacts → |
“ABOUT US We are a multinational inspection, repair and maintenance company that operates in the oil, gas and energy sector with Efficiency, Safety and Sustainability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Mhwirthhmhw.comHQ: Kristiansand, NorwayReported employees: 1,001-5,000 | Kristiansand, Norway | 1,001-5,000 | Exact match | 581 contacts → |
“October 2021.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Sapura Navegação Marítima S.Aseagems.com.brHQ: Rio De Janeiro, BrazilReported employees: 501-1,000 | Rio De Janeiro, Brazil | 501-1,000 | Exact match | 575 contacts → |
“Seagems is a Brazilian company specialized in subsea services, a joint venture between two international key players in their markets, Paratus Energy and Sapura Energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  asso.subseaassogroup.comHQ: Elefsina, GreeceReported employees: 501-1,000 | Elefsina, Greece | 501-1,000 | Exact match | 541 contacts → |
“ASSO group is a technology driven company specialized to provide services and sub-sea equipment for underwater works in the marine and offshore field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Island Offshoreislandoffshore.comHQ: Ulsteinvik, NorwayReported employees: 501-1,000 | Ulsteinvik, Norway | 501-1,000 | Exact match | 538 contacts → |
“Island Offshore - The Island Offshore Group is a leading provider of services to the offshore industry ranging from Platform Supply, Walk-to-work and Anchor Handling to Advanced…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Reach Subseareachsubsea.comHQ: Haugesund, NorwayReported employees: 501-1,000 | Haugesund, Norway | 501-1,000 | Exact match | 488 contacts → |
“Reach Subsea is an offshore contractor delivering subsea services and ocean data, survey, inspection, maintenance and repair, and construction support for offshore energy and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,922 company matches
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Subsea equipment maintenance services: dataset insights
November 6, 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
3,882 records in the displayed employee bands.
40 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,922 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 6, 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 equipment maintenance services by location
32 lists · largest firstEvery Subsea equipment maintenance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsea equipment maintenance services based in the United States338
- Subsea equipment maintenance services based in the United Kingdom314
- Subsea equipment maintenance services based in Brazil270
- Subsea equipment maintenance services based in the United Arab Emirates193
- Subsea equipment maintenance services based in India164
- Subsea equipment maintenance services based in Türkiye144
- Subsea equipment maintenance services based in Norway138
- Subsea equipment maintenance services based in the Netherlands128
- Subsea equipment maintenance services based in Malaysia101
- Subsea equipment maintenance services based in Italy96
- Subsea equipment maintenance services based in Australia92
- Subsea equipment maintenance services based in Nigeria90
- Subsea equipment maintenance services based in France83
- Subsea equipment maintenance services based in Spain74
- Subsea equipment maintenance services based in Indonesia68
- Subsea equipment maintenance services based in China60
- Subsea equipment maintenance services based in Greece60
- Subsea equipment maintenance services based in Germany53
- Subsea equipment maintenance services based in Canada50
- Subsea equipment maintenance services based in Sweden47
- Subsea equipment maintenance services based in Mexico44
- Subsea equipment maintenance services based in Saudi Arabia41
- Subsea equipment maintenance services based in South Africa31
- Subsea equipment maintenance services based in Denmark29
Cities
- Subsea equipment maintenance services based in Dubai, United Arab Emirates79
- Subsea equipment maintenance services based in Houston, United States69
- Subsea equipment maintenance services based in Istanbul, Türkiye63
- Subsea equipment maintenance services based in Aberdeen, United Kingdom55
- Subsea equipment maintenance services based in Rio De Janeiro, Brazil54
- Subsea equipment maintenance services based in Abu Dhabi, United Arab Emirates32
- Subsea equipment maintenance services based in Macae, Brazil29
- Subsea equipment maintenance services based in Niteroi, Brazil28
Questions about this company list
What does Exact match mean for subsea equipment maintenance 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 equipment maintenance services did RevenueBase find worldwide?
The saved snapshot records 3,922 matching company records, 99,128 tracked contacts and 15,318 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 6, 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 equipment maintenance services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/subsea-equipment-maintenance-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 equipment maintenance services worldwide
RevenueBase records 3,922 matching company records for subsea equipment maintenance services worldwide, with 99,128 tracked contacts and 15,318 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 6, 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 equipment maintenance 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 | Zamil Offshore Services Companyzamiloffshore.com HQ: Al-khobar, Saudi ArabiaReported employees: 1,001-5,000 | Al-khobar, Saudi Arabia | 1,001-5,000 | Exact match | 2,473 contacts → |
“Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Free Lancerc-innovation.com HQ: BrazilReported employees: Not recorded | Brazil | Not recorded | Exact match | 2,408 contacts → |
“Rov company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | OCYANocyan-sa.com HQ: Rio De Janeiro, BrazilReported employees: 1,001-5,000 | Rio De Janeiro, Brazil | 1,001-5,000 | Exact match | 2,402 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Dietsmanndietsmann.com HQ: Fontvieille, MonacoReported employees: 5,001-10,000 | Fontvieille, Monaco | 5,001-10,000 | Exact match | 2,035 contacts → |
“Dietsmann is the leading independent specialist in Operation & Maintenance services for continuous-production plant in the oil & gas and power industries with over 40 years of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 | 1,814 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Deepoceandeepoceangroup.com HQ: Oslo, NorwayReported employees: 1,001-5,000 | Oslo, Norway | 1,001-5,000 | Exact match | 1,607 contacts → |
“DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Maersk Supply Servicemaersksupplyservice.com HQ: Rio De Janeiro, BrazilReported employees: 201-500 | Rio De Janeiro, Brazil | 201-500 | Exact match | 1,353 contacts → |
“With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 | 1,344 contacts → |
“(Underwater Engineering) S.A.L was established in 1976.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Aries Energyariesmar.com HQ: United Arab EmiratesReported employees: 1,001-5,000 | United Arab Emirates | 1,001-5,000 | Exact match | 1,319 contacts → |
“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | NDT Globalndt-global.com HQ: Québec, QC, CanadaReported employees: 1,001-5,000 | Québec, QC, Canada | 1,001-5,000 | Exact match | 871 contacts → |
“NDT Global is the leading provider of inline diagnostic solutions, advanced data insights, subsea inspection, and integrity management services that safeguard energy-sector…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Allianz Middle East Ship Management LLCallianz-me.com HQ: Abu Dhabi, United Arab EmiratesReported employees: 1,001-5,000 | Abu Dhabi, United Arab Emirates | 1,001-5,000 | Exact match | 816 contacts → |
“With offices in Abu Dhabi, Dubai, Qatar and Singapore, Allianz Middle East Ship Management LLC(Allianz-ME) is a well-established marine contractors providing modern Offshore…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Yantai Cimc Raffles Offshore LTDcimc-raffles.com HQ: Yantai, ChinaReported employees: 10001+ | Yantai, China | 10001+ | Exact match | 759 contacts → |
“Yantai CIMC Raffles Offshore Technology Group Co, Ltd.(“CIMC Raffles”) is a leading offshore engineering and high-end marine equipment group in China, with a strong focus on the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | C & C Technologies, INCoceaneering.com HQ: Lafayette, LA, United StatesReported employees: 501-1,000 | Lafayette, LA, United States | 501-1,000 | Exact match | 692 contacts → |
“Oceaneering International, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Sistacsistac.com.br HQ: Macaé, BrazilReported employees: 501-1,000 | Macaé, Brazil | 501-1,000 | Exact match | 687 contacts → |
“A SISTAC é líder no segmento de inspeção, manutenção e reparo offshore na indústria de óleo e gás no Brasil, através de acesso com embarcações de apoio marítimo, mergulhadores…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Worldwide Oilfield Machinewomgroup.com HQ: Houston, United StatesReported employees: 1,001-5,000 | Houston, United States | 1,001-5,000 | Exact match | 649 contacts → |
“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Unique Groupuniquegroup.com HQ: Sharjah, United Arab EmiratesReported employees: 501-1,000 | Sharjah, United Arab Emirates | 501-1,000 | Exact match | 643 contacts → |
“Unique Group is a leading specialist and integrated engineering solutions provider across the global subsea, renewables, oil and gas, and defence industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Vertical Groupverticalgroup.com.br HQ: Niterói, BrazilReported employees: 501-1,000 | Niterói, Brazil | 501-1,000 | Exact match | 637 contacts → |
“Somos uma empresa especializada em serviços de trabalho em altura, com foco em inspeção, reparo e manutenção nos setores naval e industrial.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Qualitech IRMqualitechirm.com HQ: Rio De Janeiro, BrazilReported employees: 501-1,000 | Rio De Janeiro, Brazil | 501-1,000 | Exact match | 603 contacts → |
“ABOUT US We are a multinational inspection, repair and maintenance company that operates in the oil, gas and energy sector with Efficiency, Safety and Sustainability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mhwirthhmhw.com HQ: Kristiansand, NorwayReported employees: 1,001-5,000 | Kristiansand, Norway | 1,001-5,000 | Exact match | 581 contacts → |
“October 2021.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Sapura Navegação Marítima S.Aseagems.com.br HQ: Rio De Janeiro, BrazilReported employees: 501-1,000 | Rio De Janeiro, Brazil | 501-1,000 | Exact match | 575 contacts → |
“Seagems is a Brazilian company specialized in subsea services, a joint venture between two international key players in their markets, Paratus Energy and Sapura Energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | asso.subseaassogroup.com HQ: Elefsina, GreeceReported employees: 501-1,000 | Elefsina, Greece | 501-1,000 | Exact match | 541 contacts → |
“ASSO group is a technology driven company specialized to provide services and sub-sea equipment for underwater works in the marine and offshore field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Island Offshoreislandoffshore.com HQ: Ulsteinvik, NorwayReported employees: 501-1,000 | Ulsteinvik, Norway | 501-1,000 | Exact match | 538 contacts → |
“Island Offshore - The Island Offshore Group is a leading provider of services to the offshore industry ranging from Platform Supply, Walk-to-work and Anchor Handling to Advanced…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Reach Subseareachsubsea.com HQ: Haugesund, NorwayReported employees: 501-1,000 | Haugesund, Norway | 501-1,000 | Exact match | 488 contacts → |
“Reach Subsea is an offshore contractor delivering subsea services and ocean data, survey, inspection, maintenance and repair, and construction support for offshore energy and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,922 company matches
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Subsea equipment maintenance services: dataset insights
November 6, 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
3,882 records in the displayed employee bands.
40 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,922 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 6, 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 equipment maintenance services by location
32 lists · largest firstEvery Subsea equipment maintenance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsea equipment maintenance services based in the United States338
- Subsea equipment maintenance services based in the United Kingdom314
- Subsea equipment maintenance services based in Brazil270
- Subsea equipment maintenance services based in the United Arab Emirates193
- Subsea equipment maintenance services based in India164
- Subsea equipment maintenance services based in Türkiye144
- Subsea equipment maintenance services based in Norway138
- Subsea equipment maintenance services based in the Netherlands128
- Subsea equipment maintenance services based in Malaysia101
- Subsea equipment maintenance services based in Italy96
- Subsea equipment maintenance services based in Australia92
- Subsea equipment maintenance services based in Nigeria90
- Subsea equipment maintenance services based in France83
- Subsea equipment maintenance services based in Spain74
- Subsea equipment maintenance services based in Indonesia68
- Subsea equipment maintenance services based in China60
- Subsea equipment maintenance services based in Greece60
- Subsea equipment maintenance services based in Germany53
- Subsea equipment maintenance services based in Canada50
- Subsea equipment maintenance services based in Sweden47
- Subsea equipment maintenance services based in Mexico44
- Subsea equipment maintenance services based in Saudi Arabia41
- Subsea equipment maintenance services based in South Africa31
- Subsea equipment maintenance services based in Denmark29
Cities
- Subsea equipment maintenance services based in Dubai, United Arab Emirates79
- Subsea equipment maintenance services based in Houston, United States69
- Subsea equipment maintenance services based in Istanbul, Türkiye63
- Subsea equipment maintenance services based in Aberdeen, United Kingdom55
- Subsea equipment maintenance services based in Rio De Janeiro, Brazil54
- Subsea equipment maintenance services based in Abu Dhabi, United Arab Emirates32
- Subsea equipment maintenance services based in Macae, Brazil29
- Subsea equipment maintenance services based in Niteroi, Brazil28
Questions about this company list
What does Exact match mean for subsea equipment maintenance 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 equipment maintenance services did RevenueBase find worldwide?
The saved snapshot records 3,922 matching company records, 99,128 tracked contacts and 15,318 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 6, 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 equipment maintenance services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/subsea-equipment-maintenance-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗