Company lists · Data refreshed November 2026
Top 25 Underwater contractors worldwide
RevenueBase identified 7,980 company matches for underwater contractors worldwide as of November 2026 and tracks 188,150 professional contacts across them, including 42,748 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers company matches for underwater contractors 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 underwater contractors 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 underwater contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,731 contacts → | ||||
Exact match “DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 4,613 contacts → | ||||
Exact match “Van Oord is a leading international marine contractor focusing on dredging, infrastructure and offshore energy projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 3,564 contacts → | ||||
Exact match “Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 2,841 contacts → | ||||
Exact match “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 2,837 contacts → | ||||
Exact match “Allseas is a world-leading contractor in the offshore energy market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 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 | |||||
| 7 | 2,439 contacts → | ||||
Exact match “NMDC Dredging & Marine was established in 1976 as a dredging division of Abu Dhabi National Oil Company (ADNOC).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 2,408 contacts → | ||||
Exact match “Rov company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 2,178 contacts → | ||||
Exact match “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 2,061 contacts → | ||||
Exact match “ASC Pty Ltd has proudly served as Australia’s submarine builder and sustainer for almost 40 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 1,953 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 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 | |||||
| 13 | 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 | |||||
| 14 | 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 | |||||
| 15 | 1,263 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 1,251 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 990 contacts → | ||||
Exact match “Great Lakes Dredge & Dock (GLDD) is the largest provider of dredging services in the United States and the only U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 980 contacts → | ||||
Exact match “Biggest and most modern greenfield ship yard in INDIA Engaged in Ship Building and Ship Repairs of any type of vessels Wide customer base both in India and abroad IMS accredited…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 959 contacts → | ||||
Exact match “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 in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 915 contacts → | ||||
Exact match “Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 898 contacts → | ||||
Exact match “Founded in 1919, Weeks Marine, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 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 | |||||
| 23 | 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 | |||||
| 24 | 745 contacts → | ||||
Exact match “MODEC is a general contractor specializing in engineering, procurement, construction and installation of floating production systems including Floating Production Storage and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 692 contacts → | ||||
Exact match “Oceaneering International, Inc.” 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 “underwater contractors”. 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 7,980 underwater contractors worldwide
See the full list, filter by size, metro and specialty, and access 42,748 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Underwater contractors 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 underwater contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “underwater contractors” 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 42,748 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.
Underwater contractors by location
38 lists · largest firstEvery Underwater contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underwater contractors based in the United States2,336
- Underwater contractors based in the United Kingdom566
- Underwater contractors based in Australia303
- Underwater contractors based in Canada261
- Underwater contractors based in the Netherlands247
- Underwater contractors based in the United Arab Emirates233
- Underwater contractors based in Brazil219
- Underwater contractors based in Italy198
- Underwater contractors based in India193
- Underwater contractors based in France189
- Underwater contractors based in Norway162
- Underwater contractors based in Singapore123
- Underwater contractors based in Spain121
- Underwater contractors based in Germany115
- Underwater contractors based in Indonesia106
- Underwater contractors based in Malaysia100
- Underwater contractors based in Türkiye91
- Underwater contractors based in Saudi Arabia83
- Underwater contractors based in Chile78
- Underwater contractors based in Denmark60
- Underwater contractors based in Nigeria59
- Underwater contractors based in New Zealand56
- Underwater contractors based in Sweden56
- Underwater contractors based in South Africa54
- Underwater contractors based in Mexico53
- Underwater contractors based in Belgium44
- Underwater contractors based in Switzerland29
- Underwater contractors based in Finland26
Cities
- Underwater contractors based in Singapore, Singapore106
- Underwater contractors based in Dubai, United Arab Emirates84
- Underwater contractors based in Houston, United States68
- Underwater contractors based in Abu Dhabi, United Arab Emirates52
- Underwater contractors based in London, United Kingdom46
- Underwater contractors based in Aberdeen, United Kingdom43
- Underwater contractors based in Rio De Janeiro, Brazil43
- Underwater contractors based in Jacksonville, United States28
- Underwater contractors based in Miami, United States26
- Underwater contractors based in Fort Lauderdale, United States25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “underwater contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many underwater contractors are there worldwide?
RevenueBase identified 7,980 company matches for underwater contractors 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?
Deme Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most underwater contractors?
The United States leads with 2,336 companies, followed by the United Kingdom (566) and Australia (303). Every underwater contractors list by country and city is linked on this page.
Which city has the most underwater contractors?
Singapore leads with 106 company records, followed by Dubai (84) and Houston (68).
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 42,748 professional contacts with verified work emails tracked across these 7,980 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 7,980 underwater contractors 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 underwater contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 7,980 matching company records for underwater contractors worldwide, with 188,150 tracked contacts and 42,748 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 underwater contractors 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 |  Deme Groupdeme-group.comHQ: Beveren-kruibeke-zwijndrecht, BelgiumReported employees: 5,001-10,000 | Beveren-kruibeke-zwijndrecht, Belgium | 5,001-10,000 | Exact match | 4,731 contacts → |
“DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  VAN Oordvanoord.comHQ: 3063 Nh, NetherlandsReported employees: 5,001-10,000 | 3063 Nh, Netherlands | 5,001-10,000 | Exact match | 4,613 contacts → |
“Van Oord is a leading international marine contractor focusing on dredging, infrastructure and offshore energy projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Boskalisboskalis.comHQ: Papendrecht, NetherlandsReported employees: 10001+ | Papendrecht, Netherlands | 10001+ | Exact match | 3,564 contacts → |
“Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Heerema Marine Contractorsheerema.comHQ: Leiden, NetherlandsReported employees: 1,001-5,000 | Leiden, Netherlands | 1,001-5,000 | Exact match | 2,841 contacts → |
“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Allseasallseas.comHQ: Châtel-saint-denis, United StatesReported employees: 1,001-5,000 | Châtel-saint-denis, United States | 1,001-5,000 | Exact match | 2,837 contacts → |
“Allseas is a world-leading contractor in the offshore energy market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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. | |||||
| 7 |  Nmdc Dredging & Marinenmdc-dredgingmarine.comHQ: Musaffah Industrial, United Arab EmiratesReported employees: 1,001-5,000 | Musaffah Industrial, United Arab Emirates | 1,001-5,000 | Exact match | 2,439 contacts → |
“NMDC Dredging & Marine was established in 1976 as a dredging division of Abu Dhabi National Oil Company (ADNOC).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  Chantiers DE L'atlantiquechantiers-atlantique.comHQ: Saint-nazaire, FranceReported employees: 1,001-5,000 | Saint-nazaire, France | 1,001-5,000 | Exact match | 2,178 contacts → |
“Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  ASC PTY LTDasc.com.auHQ: Osborne, AustraliaReported employees: 1,001-5,000 | Osborne, Australia | 1,001-5,000 | Exact match | 2,061 contacts → |
“ASC Pty Ltd has proudly served as Australia’s submarine builder and sustainer for almost 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Groupe Ponticelli Frèresponticelli.comHQ: FranceReported employees: 5,001-10,000 | France | 5,001-10,000 | Exact match | 1,953 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 · November 6, 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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. | |||||
| 14 |  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. | |||||
| 15 |  ASNasn.comHQ: Les Ulis, FranceReported employees: 1,001-5,000 | Les Ulis, France | 1,001-5,000 | Exact match | 1,263 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  BELOVbelov.com.brHQ: Matriz, BrazilReported employees: 1,001-5,000 | Matriz, Brazil | 1,001-5,000 | Exact match | 1,251 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 990 contacts → |
“Great Lakes Dredge & Dock (GLDD) is the largest provider of dredging services in the United States and the only U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cochin Shipyard Limitedcochinshipyard.com HQ: Kochi, IndiaReported employees: Not recorded | Kochi, India | Not recorded | Exact match | 980 contacts → |
“Biggest and most modern greenfield ship yard in INDIA Engaged in Ship Building and Ship Repairs of any type of vessels Wide customer base both in India and abroad IMS accredited…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Micoperi SRLmicoperi.comHQ: Ravenna, ItalyReported employees: 201-500 | Ravenna, Italy | 201-500 | Exact match | 959 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Bollinger Shipyardsbollingershipyards.comHQ: Lockport, MS, United StatesReported employees: 5,001-10,000 | Lockport, MS, United States | 5,001-10,000 | Exact match | 915 contacts → |
“Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Weeks Marine, INCweeksmarine.comHQ: Cranford, NJ, United StatesReported employees: 1,001-5,000 | Cranford, NJ, United States | 1,001-5,000 | Exact match | 898 contacts → |
“Founded in 1919, Weeks Marine, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  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. | |||||
| 23 |  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. | |||||
| 24 |  Modec International INCmodec.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 745 contacts → |
“MODEC is a general contractor specializing in engineering, procurement, construction and installation of floating production systems including Floating Production Storage and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  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. | |||||
Showing 25 of 7,980 company matches
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Underwater contractors: 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
7,886 records in the displayed employee bands.
94 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 7,980 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 ↗
Underwater contractors by location
38 lists · largest firstEvery Underwater contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underwater contractors based in the United States2,336
- Underwater contractors based in the United Kingdom566
- Underwater contractors based in Australia303
- Underwater contractors based in Canada261
- Underwater contractors based in the Netherlands247
- Underwater contractors based in the United Arab Emirates233
- Underwater contractors based in Brazil219
- Underwater contractors based in Italy198
- Underwater contractors based in India193
- Underwater contractors based in France189
- Underwater contractors based in Norway162
- Underwater contractors based in Singapore123
- Underwater contractors based in Spain121
- Underwater contractors based in Germany115
- Underwater contractors based in Indonesia106
- Underwater contractors based in Malaysia100
- Underwater contractors based in Türkiye91
- Underwater contractors based in Saudi Arabia83
- Underwater contractors based in Chile78
- Underwater contractors based in Denmark60
- Underwater contractors based in Nigeria59
- Underwater contractors based in New Zealand56
- Underwater contractors based in Sweden56
- Underwater contractors based in South Africa54
- Underwater contractors based in Mexico53
- Underwater contractors based in Belgium44
- Underwater contractors based in Switzerland29
- Underwater contractors based in Finland26
Cities
- Underwater contractors based in Singapore, Singapore106
- Underwater contractors based in Dubai, United Arab Emirates84
- Underwater contractors based in Houston, United States68
- Underwater contractors based in Abu Dhabi, United Arab Emirates52
- Underwater contractors based in London, United Kingdom46
- Underwater contractors based in Aberdeen, United Kingdom43
- Underwater contractors based in Rio De Janeiro, Brazil43
- Underwater contractors based in Jacksonville, United States28
- Underwater contractors based in Miami, United States26
- Underwater contractors based in Fort Lauderdale, United States25
Questions about this company list
What does Exact match mean for underwater contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many underwater contractors did RevenueBase find worldwide?
The saved snapshot records 7,980 matching company records, 188,150 tracked contacts and 42,748 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 underwater contractors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/underwater-contractors.
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 underwater contractors worldwide
RevenueBase records 7,980 matching company records for underwater contractors worldwide, with 188,150 tracked contacts and 42,748 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 underwater contractors 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 | Deme Groupdeme-group.com HQ: Beveren-kruibeke-zwijndrecht, BelgiumReported employees: 5,001-10,000 | Beveren-kruibeke-zwijndrecht, Belgium | 5,001-10,000 | Exact match | 4,731 contacts → |
“DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | VAN Oordvanoord.com HQ: 3063 Nh, NetherlandsReported employees: 5,001-10,000 | 3063 Nh, Netherlands | 5,001-10,000 | Exact match | 4,613 contacts → |
“Van Oord is a leading international marine contractor focusing on dredging, infrastructure and offshore energy projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Boskalisboskalis.com HQ: Papendrecht, NetherlandsReported employees: 10001+ | Papendrecht, Netherlands | 10001+ | Exact match | 3,564 contacts → |
“Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Heerema Marine Contractorsheerema.com HQ: Leiden, NetherlandsReported employees: 1,001-5,000 | Leiden, Netherlands | 1,001-5,000 | Exact match | 2,841 contacts → |
“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Allseasallseas.com HQ: Châtel-saint-denis, United StatesReported employees: 1,001-5,000 | Châtel-saint-denis, United States | 1,001-5,000 | Exact match | 2,837 contacts → |
“Allseas is a world-leading contractor in the offshore energy market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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. | |||||
| 7 | Nmdc Dredging & Marinenmdc-dredgingmarine.com HQ: Musaffah Industrial, United Arab EmiratesReported employees: 1,001-5,000 | Musaffah Industrial, United Arab Emirates | 1,001-5,000 | Exact match | 2,439 contacts → |
“NMDC Dredging & Marine was established in 1976 as a dredging division of Abu Dhabi National Oil Company (ADNOC).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | Chantiers DE L'atlantiquechantiers-atlantique.com HQ: Saint-nazaire, FranceReported employees: 1,001-5,000 | Saint-nazaire, France | 1,001-5,000 | Exact match | 2,178 contacts → |
“Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ASC PTY LTDasc.com.au HQ: Osborne, AustraliaReported employees: 1,001-5,000 | Osborne, Australia | 1,001-5,000 | Exact match | 2,061 contacts → |
“ASC Pty Ltd has proudly served as Australia’s submarine builder and sustainer for almost 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Groupe Ponticelli Frèresponticelli.com HQ: FranceReported employees: 5,001-10,000 | France | 5,001-10,000 | Exact match | 1,953 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 · November 6, 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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. | |||||
| 14 | 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. | |||||
| 15 | ASNasn.com HQ: Les Ulis, FranceReported employees: 1,001-5,000 | Les Ulis, France | 1,001-5,000 | Exact match | 1,263 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | BELOVbelov.com.br HQ: Matriz, BrazilReported employees: 1,001-5,000 | Matriz, Brazil | 1,001-5,000 | Exact match | 1,251 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 990 contacts → |
“Great Lakes Dredge & Dock (GLDD) is the largest provider of dredging services in the United States and the only U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cochin Shipyard Limitedcochinshipyard.com HQ: Kochi, IndiaReported employees: Not recorded | Kochi, India | Not recorded | Exact match | 980 contacts → |
“Biggest and most modern greenfield ship yard in INDIA Engaged in Ship Building and Ship Repairs of any type of vessels Wide customer base both in India and abroad IMS accredited…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Micoperi SRLmicoperi.com HQ: Ravenna, ItalyReported employees: 201-500 | Ravenna, Italy | 201-500 | Exact match | 959 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Bollinger Shipyardsbollingershipyards.com HQ: Lockport, MS, United StatesReported employees: 5,001-10,000 | Lockport, MS, United States | 5,001-10,000 | Exact match | 915 contacts → |
“Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Weeks Marine, INCweeksmarine.com HQ: Cranford, NJ, United StatesReported employees: 1,001-5,000 | Cranford, NJ, United States | 1,001-5,000 | Exact match | 898 contacts → |
“Founded in 1919, Weeks Marine, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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. | |||||
| 23 | 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. | |||||
| 24 | Modec International INCmodec.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 745 contacts → |
“MODEC is a general contractor specializing in engineering, procurement, construction and installation of floating production systems including Floating Production Storage and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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. | |||||
Showing 25 of 7,980 company matches
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Underwater contractors: 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
7,886 records in the displayed employee bands.
94 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 7,980 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 ↗
Underwater contractors by location
38 lists · largest firstEvery Underwater contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underwater contractors based in the United States2,336
- Underwater contractors based in the United Kingdom566
- Underwater contractors based in Australia303
- Underwater contractors based in Canada261
- Underwater contractors based in the Netherlands247
- Underwater contractors based in the United Arab Emirates233
- Underwater contractors based in Brazil219
- Underwater contractors based in Italy198
- Underwater contractors based in India193
- Underwater contractors based in France189
- Underwater contractors based in Norway162
- Underwater contractors based in Singapore123
- Underwater contractors based in Spain121
- Underwater contractors based in Germany115
- Underwater contractors based in Indonesia106
- Underwater contractors based in Malaysia100
- Underwater contractors based in Türkiye91
- Underwater contractors based in Saudi Arabia83
- Underwater contractors based in Chile78
- Underwater contractors based in Denmark60
- Underwater contractors based in Nigeria59
- Underwater contractors based in New Zealand56
- Underwater contractors based in Sweden56
- Underwater contractors based in South Africa54
- Underwater contractors based in Mexico53
- Underwater contractors based in Belgium44
- Underwater contractors based in Switzerland29
- Underwater contractors based in Finland26
Cities
- Underwater contractors based in Singapore, Singapore106
- Underwater contractors based in Dubai, United Arab Emirates84
- Underwater contractors based in Houston, United States68
- Underwater contractors based in Abu Dhabi, United Arab Emirates52
- Underwater contractors based in London, United Kingdom46
- Underwater contractors based in Aberdeen, United Kingdom43
- Underwater contractors based in Rio De Janeiro, Brazil43
- Underwater contractors based in Jacksonville, United States28
- Underwater contractors based in Miami, United States26
- Underwater contractors based in Fort Lauderdale, United States25
Questions about this company list
What does Exact match mean for underwater contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many underwater contractors did RevenueBase find worldwide?
The saved snapshot records 7,980 matching company records, 188,150 tracked contacts and 42,748 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 underwater contractors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/underwater-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗