Company lists · Data refreshed November 2026

Top 25 Underwater construction services worldwide

RevenueBase identified 2,640 company matches for underwater construction services worldwide as of November 2026 and tracks 57,877 professional contacts across them, including 8,180 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers company matches for underwater construction 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 3, 2026. Country and city lists for underwater construction 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 3, 2026 How this list was built
2,640Companies
57,877Contacts tracked
8,180Verified emails
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The 25 largest underwater construction services worldwide

Ranked by team size
Top 25 of 2,640 company matches for underwater construction services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLeiden, NetherlandsHQ recorded Nov 3, 20261,001-5,0002,841 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 3, 2026 · View company records in RevenueBase
2Exact matchBrazilHQ recorded Nov 3, 2026n/a2,408 contacts →

Exact match

“Rov company.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 3, 2026201-5001,344 contacts →

Exact match

“(Underwater Engineering) S.A.L was established in 1976.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchMatriz, BrazilHQ recorded Nov 3, 20261,001-5,0001,251 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 3, 2026 · View company records in RevenueBase
5Exact matchRavenna, ItalyHQ recorded Nov 3, 2026201-500959 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 3, 2026 · View company records in RevenueBase
6Exact matchCranford, NJ, United StatesHQ recorded Nov 3, 20261,001-5,000898 contacts →

Exact match

“Founded in 1919, Weeks Marine, Inc.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 3, 20261,001-5,000816 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 3, 2026 · View company records in RevenueBase
8Exact matchSharjah, United Arab EmiratesHQ recorded Nov 3, 2026501-1,000643 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 3, 2026 · View company records in RevenueBase
9Exact matchSeattle, CA, United StatesHQ recorded Nov 3, 2026501-1,000626 contacts →

Exact match

“Manson is one of the nation’s leading heavy civil marine construction and dredging companies.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10Exact matchDordrecht, NetherlandsHQ recorded Nov 3, 2026201-500447 contacts →

Exact match

“N-Sea is an end-to-end subsea services provider.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchProvidencia, ChileHQ recorded Nov 3, 20261,001-5,000444 contacts →

Exact match

“OUR MISSION To place the talent of its professionals at the service of the community, through the development of projects and execution of sustainable works in the countries of…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchLagos, NigeriaHQ recorded Nov 3, 2026201-500440 contacts →

Exact match

“HydroDive provides a broad range of Marine Vessels, Air, Mixed Gas and Saturation Diving, ROV, AUV and Survey Services primarily to the offshore & inshore Petroleum Industry of…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchChicago, VA, United StatesHQ recorded Nov 3, 2026201-500433 contacts →

Exact match

“In 1979, Collins Engineers, Inc.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchDammam, Saudi ArabiaHQ recorded Nov 3, 2026501-1,000428 contacts →

Exact match

“This page is dedicated to Mermaid Subsea Saudi Arabia.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchMira Bhayander, IndiaHQ recorded Nov 3, 2026201-500423 contacts →

Exact match

“COMACOE - Coastal Marine Construction & Engineering Ltd is an experienced marine services contractor with operations in multiple geographies offering a range of service over the…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16Exact matchChelmsford, United KingdomHQ recorded Nov 3, 2026501-1,000371 contacts →

Exact match

“Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchSao Paulo, BrazilHQ recorded Nov 3, 202651-200370 contacts →

Exact match

“Designed to become a major Brazilian construction company, CTC Infra was born in still under the name Constremac, shortly after acquiring Copabo Construções, a company belonging…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 3, 2026201-500328 contacts →

Exact match

“SAFEEN Survey & Subsea Services is a premier provider of integrated offshore survey, diving and subsea engineering solutions across the UAE, GCC and globally.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchSriracha, ThailandHQ recorded Nov 3, 2026501-1,000320 contacts →

Exact match

“Mermaid Subsea today operates as a unified structured unit across markets offering customers a comprehensive range of subsea solutions through a highly competent technical and…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchStavanger, NorwayHQ recorded Nov 3, 2026201-500318 contacts →

Exact match

“Ocean Installer is a leading marine construction company that specializes in offshore installation services with more than 15 years of experience delivering large and complex…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchIndiaHQ recorded Nov 3, 2026201-500296 contacts →

Exact match

“Dolphin Offshore”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchDubai, United Arab EmiratesHQ recorded Nov 3, 20261,001-5,000274 contacts →

Exact match

“APT Global is a leading complete technical service provider in Marine, Dredging, Offshore, Oil & Gas, Industry and Construction.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchOslo, NorwayHQ recorded Nov 3, 2026201-500254 contacts →

Exact match

“AKOFS Offshore is a global provider of vessel based subsea well construction and intervention services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchWorcester, United KingdomHQ recorded Nov 3, 202651-200254 contacts →

Exact match

“VolkerLaser is the UK's leading multi-functional contractor.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchWashougal, FL, United StatesHQ recorded Nov 3, 202651-200252 contacts →

Exact match

“Ballard Marine Construction (Ballard) is a specialty marine and underwater contractor.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 2,640 underwater construction services worldwide

See the full list, filter by size, metro and specialty, and access 8,180 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Underwater construction services worldwide at a glance

As of Nov 3, 2026
14.1%Verified-email coverage
21.9Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · Singapore
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
977
11-50
1,009
51-200
425
201-500
129
501-1,000
41
1,001-5,000
21
5,001-10,000
2
10001+
2

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 construction services are linked below.
What qualifies
Company records worldwide whose business descriptions match “underwater construction 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 8,180 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 3, 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 construction services by location

16 lists · largest first

Every Underwater construction services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 construction services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underwater construction services are there worldwide?

RevenueBase identified 2,640 company matches for underwater construction 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?

Heerema Marine Contractors tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most underwater construction services?

The United States leads with 585 companies, followed by the United Kingdom (151) and Brazil (107). Every underwater construction services list by country and city is linked on this page.

Which city has the most underwater construction services?

Singapore leads with 45 company records, followed by Dubai (29) and Istanbul (22).

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 8,180 professional contacts with verified work emails tracked across these 2,640 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 3, 2026.

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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.