Company lists · Data refreshed November 2026

Top 25 Subsea service providers worldwide

Name: Subsea service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,921 companies tracked

RevenueBase identified 5,921 company matches for subsea service providers worldwide as of November 2026 and tracks 306,464 professional contacts across them, including 48,073 with verified work emails. The United Kingdom is the largest market and Singapore the largest hub.

This list covers company matches for subsea service providers 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 service providers 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

5,921Companies

306,464Contacts tracked

48,073Verified emails

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The 25 largest subsea service providers worldwide

Ranked by team size

Top 25 of 5,921 company matches for subsea service providers 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Oceaneering	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	10001+	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
2	Technip Former Company	Exact match	United KingdomHQ recorded Nov 6, 2026	10001+	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
3	Onesubsea	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	10001+	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
4	EXPRO	Exact match	Houston, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,924 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
5	Noble Corporation	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,077 contacts →
	Exact match “Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	v.group	Exact match	London, GermanyHQ recorded Nov 6, 2026	10001+	4,823 contacts →
	Exact match “The committed partner of progress for everything at sea.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Tidewater	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,739 contacts →
	Exact match “Tidewater Inc.(Tidewater) is the owner and operator of the world’s largest Offshore Support Vessel (OSV) fleet.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	DOF	Exact match	Bergen, NorwayHQ recorded Nov 6, 2026	5,001-10,000	3,303 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
9	Bram Offshore	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	3,276 contacts →
	Exact match “Somos a Bram Offshore Transportes Marítimos, a maior empresa representante do Grupo Edison Chouest Offshore no Brasil, reconhecida como o fornecedor de soluções de transporte…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Heerema Marine Contractors	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	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
11	Allseas	Exact match	Châtel-saint-denis, United StatesHQ recorded Nov 6, 2026	1,001-5,000	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
12	Malaysia Marine & Heavy Engineering	Exact match	Kuala Lumpur, MalaysiaHQ recorded Nov 6, 2026	1,001-5,000	2,752 contacts →
	Exact match “Malaysia Marine and Heavy Engineering Holdings Berhad (MHB) is a globally trusted energy and marine solutions provider for a wide range of offshore and onshore facilities and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Zamil Offshore Services Company	Exact match	Al-khobar, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	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
14	Free Lancer	Exact match	BrazilHQ recorded Nov 6, 2026	n/a	2,408 contacts →
	Exact match “Rov company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	OCYAN	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	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
16	Oceanica	Exact match	Macaé - Rj, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,399 contacts →
	Exact match “OCEÂNICA is a Brazilian company dedicated to providing services and engineering technology solutions for companies with underwater activities” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	ZMI Holdings	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	2,100 contacts →
	Exact match “ZMI Holdings an ADNOC L&S company THE NEW WAVE Transforming the Offshore Energy Industry An integrated service provider offering unparalleled commitment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Edison Chouest Offshore	Exact match	Cut Off, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,947 contacts →
	Exact match “Recognized Worldwide for Diverse and Dynamic Marine Transportation Solutions Founded as Edison Chouest Boat Rental in Galliano, Louisiana, in 1960, the Edison Chouest Offshore…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Grupo CBO	Exact match	Niterói, BrazilHQ recorded Nov 6, 2026	1,001-5,000	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
20	OIL States International	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,831 contacts →
	Exact match “Oil States International, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Helix Energy Solutions Group	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	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
22	Tp-Otc	Exact match	Çankaya, TürkiyeHQ recorded Nov 6, 2026	501-1,000	1,813 contacts →
	Exact match “TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Bumi Armada	Exact match	Kuala Lumpur, MalaysiaHQ recorded Nov 6, 2026	1,001-5,000	1,755 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
24	Rawabi Vallianz Offshore Services	Exact match	Al Khobar, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	1,729 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
25	Grupo Bravante	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,704 contacts →
	Exact match “O Grupo Bravante é 100% brasileiro com mais de 60 anos provendo serviços para a indústria de óleo e gás, além de atuar nas áreas de apoio marítimo, apoio portuário, construção e…” 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 service providers”. 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 5,921 subsea service providers worldwide

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Subsea service providers worldwide at a glance

As of Nov 6, 2026

15.7%Verified-email coverage

51.8Average contacts per company

11-50Median size (employees)

4.2%Largest-city concentration · Singapore

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,054

11-50

2,163

51-200

1,005

201-500

341

501-1,000

156

1,001-5,000

119

5,001-10,000

10001+

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 service providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “subsea service providers” 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 48,073 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 service providers by location

43 lists · largest first

Every Subsea service providers 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 service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsea service providers are there worldwide?

RevenueBase identified 5,921 company matches for subsea service providers 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 service providers?

The United Kingdom leads with 694 companies, followed by the United States (553) and the United Arab Emirates (291). Every subsea service providers list by country and city is linked on this page.

Which city has the most subsea service providers?

Singapore leads with 248 company records, followed by Aberdeen (130) and Dubai (120).

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 48,073 professional contacts with verified work emails tracked across these 5,921 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.