Company lists · Data refreshed November 2026

Top 25 Subsea equipment installation services worldwide

RevenueBase identified 2,486 company matches for subsea equipment installation services worldwide as of November 2026 and tracks 149,140 professional contacts across them, including 27,123 with verified work emails. The United Kingdom is the largest market and Singapore the largest hub.

This list covers company matches for subsea equipment installation 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 installation 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 6, 2026 How this list was built
2,486Companies
149,140Contacts tracked
27,123Verified emails
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The 25 largest subsea equipment installation services worldwide

Ranked by team size
Top 25 of 2,486 company matches for subsea equipment installation services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchHouston, TX, United StatesHQ recorded Nov 6, 202610001+12,787 contacts →

Exact match

“Oceaneering is a global technology company delivering engineered services and products and robotic solutions to the offshore energy, defense, aerospace, and manufacturing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchUnited KingdomHQ recorded Nov 6, 202610001+12,130 contacts →

Exact match

“Technip is a former company that was separated into two independent companies: TechnipFMC and Technip Energies, which now operate with no capital ties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202610001+6,954 contacts →

Exact match

“SLB OneSubsea is the world’s leading subsea technology and solutions provider, focused on accelerating innovation to improve subsea asset performance, while increasing energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, United StatesHQ recorded Nov 6, 20265,001-10,0006,924 contacts →

Exact match

“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBergen, NorwayHQ recorded Nov 6, 20265,001-10,0003,303 contacts →

Exact match

“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLeiden, NetherlandsHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
7Exact matchChâtel-saint-denis, United StatesHQ recorded Nov 6, 20261,001-5,0002,837 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
8Exact matchBrazilHQ recorded Nov 6, 2026n/a2,408 contacts →

Exact match

“Rov company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 20261,001-5,0002,402 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
10Exact matchJakarta, IndonesiaHQ recorded Nov 6, 20261,001-5,0002,143 contacts →

Exact match

“PT Meindo Elang Indah is one of the leading EPCI companies in Indonesia, providing fully integrated solutions in Engineering, Procurement, Construction, and Installation services…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNiterói, BrazilHQ recorded Nov 6, 20261,001-5,0001,847 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
12Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,814 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
13Exact matchKuala Lumpur, MalaysiaHQ recorded Nov 6, 20261,001-5,0001,755 contacts →

Exact match

“At Bumi Armada, we amplify competency to resonate with the changing Oil & Gas industry demands, values and expectations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAl Khobar, Saudi ArabiaHQ recorded Nov 6, 20261,001-5,0001,729 contacts →

Exact match

“With an extensive fleet of over 200 vessels worldwide, Rawabi Vallianz Offshore Services leverages Rawabi’s expertise to ensure exceptional quality and on-time delivery.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchOslo, NorwayHQ recorded Nov 6, 20261,001-5,0001,607 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
16Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026201-5001,344 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
17Exact matchLes Ulis, FranceHQ recorded Nov 6, 20261,001-5,0001,263 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
18Exact matchAberdeenshire, United KingdomHQ recorded Nov 6, 2026501-1,000972 contacts →

Exact match

“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRavenna, ItalyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
20Exact matchCopenhagen V, DenmarkHQ recorded Nov 6, 20261,001-5,000913 contacts →

Exact match

“Cadeler is a pure-play offshore wind installation partner and the global leader in turbine transport and installation, operating the world’s largest fleet of heavy-lift jack-up…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSingaporeHQ recorded Nov 6, 20261,001-5,000853 contacts →

Exact match

“Established since 1975, Swire Pacific Offshore (SPO) was a trusted marine services provider that pride itself on delivering safe, high quality, reliable and sustainable Marine…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
23Exact matchYantai, ChinaHQ recorded Nov 6, 202610001+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
24Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500745 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
25Exact matchSingaporeHQ recorded Nov 6, 2026201-500741 contacts →

Exact match

“The Pacific Radiance Group of Companies is an established owner and operator of offshore vessels and a provider of subsea services, shipyard services, marine equipment as well as…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,486 subsea equipment installation services worldwide

See the full list, filter by size, metro and specialty, and access 27,123 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsea equipment installation services worldwide at a glance

As of Nov 6, 2026
18.2%Verified-email coverage
60.0Average contacts per company
11-50Median size (employees)
4.1%Largest-city concentration · Singapore
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
798
11-50
925
51-200
457
201-500
154
501-1,000
57
1,001-5,000
57
5,001-10,000
8
10001+
13

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 installation services are linked below.
What qualifies
Company records worldwide whose business descriptions match “subsea equipment installation 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 27,123 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 installation services by location

20 lists · largest first

Every Subsea equipment installation 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 “subsea equipment installation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsea equipment installation services are there worldwide?

RevenueBase identified 2,486 company matches for subsea equipment installation 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?

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

Which country has the most subsea equipment installation services?

The United Kingdom leads with 333 companies, followed by the United States (207) and Norway (154). Every subsea equipment installation services list by country and city is linked on this page.

Which city has the most subsea equipment installation services?

Singapore leads with 102 company records, followed by Aberdeen (72) and Houston (64).

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 27,123 professional contacts with verified work emails tracked across these 2,486 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.

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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.