Company lists · Data refreshed September 2026

Top 25 Offshore platform maintenance services worldwide

Name: Offshore platform maintenance services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 9,430 companies tracked

RevenueBase identified 9,430 company matches for offshore platform maintenance services worldwide as of September 2026 and tracks 489,291 professional contacts across them, including 75,304 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers company matches for offshore platform maintenance services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026. Country and city lists for offshore platform maintenance services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

9,430Companies

489,291Contacts tracked

75,304Verified emails

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The 25 largest offshore platform maintenance services worldwide

Ranked by team size

Top 25 of 9,430 company matches for offshore platform maintenance services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Saipem	Exact match	Milan, ItalyHQ recorded Sep 29, 2026	10001+	34,095 contacts →
	Exact match “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Transocean	Exact match	Zug, SwitzerlandHQ recorded Sep 29, 2026	1,001-5,000	10,068 contacts →
	Exact match “Transocean is a leading international provider of offshore contract drilling services for oil and gas wells.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Lamprell	Exact match	Sharjah, United Arab EmiratesHQ recorded Sep 29, 2026	5,001-10,000	6,080 contacts →
	Exact match “With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Nabors Industries	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	10001+	5,865 contacts →
	Exact match “Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Noble Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	5,001-10,000	5,601 contacts →
	Exact match “Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	MODEC	Exact match	Chuo-ku, JapanHQ recorded Sep 29, 2026	5,001-10,000	5,077 contacts →
	Exact match “MODEC has been a leading provider of solutions for the floating offshore oil and gas market for over 50 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Seatrium	Exact match	United StatesHQ recorded Sep 29, 2026	10001+	4,522 contacts →
	Exact match “A Premier Global Player with Deep Engineering Expertise in the offshore, marine and energy industries Engineering our Future Together.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	STORK	Exact match	Utrecht, NetherlandsHQ recorded Sep 29, 2026	10001+	4,073 contacts →
	Exact match “Stork is a global provider of integrated operations, maintenance, modification and asset integrity solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	CBSI	Exact match	Volta Redonda, BrazilHQ recorded Sep 29, 2026	10001+	3,658 contacts →
	Exact match “Somos a CBSI!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Sep 29, 2026	10001+	3,436 contacts →
	Exact match “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	ADES	Exact match	Al Khobar, Saudi ArabiaHQ recorded Sep 29, 2026	5,001-10,000	3,251 contacts →
	Exact match “ADES is a world-leading international provider of oil and gas drilling services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Valaris Limited	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	5,001-10,000	3,173 contacts →
	Exact match “We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Altrad	Exact match	Montpellier, FranceHQ recorded Sep 29, 2026	10001+	3,056 contacts →
	Exact match “ALTRAD AT A GLANCE Altrad is a world leader in the provision of industrial services, generating high-added value solutions principally for the Energy, Power Generation, Oil & Gas…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	DOF	Exact match	Bergen, NorwayHQ recorded Sep 29, 2026	5,001-10,000	2,942 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 · Sep 29, 2026 · View company records in RevenueBase
15	Gran Services S.A	Exact match	Macaé, BrazilHQ recorded Sep 29, 2026	1,001-5,000	2,752 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Engeman	Exact match	Recife, BrazilHQ recorded Sep 29, 2026	5,001-10,000	2,746 contacts →
	Exact match “Fundada em 1983, a Engeman atua com excelência no desenvolvimento de soluções para os diversos setores da indústria.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Brand Energy & Infrastructure Services	Exact match	GermanyHQ recorded Sep 29, 2026	10001+	2,676 contacts →
	Exact match “Brand Energy & Infrastructure Services supports customers’ maintenance, turnaround and refurbishment needs as well as new construction, capital-driven upgrades and expansion…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Heerema Marine Contractors	Exact match	Leiden, NetherlandsHQ recorded Sep 29, 2026	1,001-5,000	2,643 contacts →
	Exact match “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Enermech	Exact match	Aberdeen, United KingdomHQ recorded Sep 29, 2026	1,001-5,000	2,640 contacts →
	Exact match “EnerMech delivers integrated specialist services that support critical assets across the energy and infrastructure sectors worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Kaefer	Exact match	Bremen, GermanyHQ recorded Sep 29, 2026	10001+	2,624 contacts →
	Exact match “For over a century, KAEFER has been helping clients to protect and extend the life of their most valuable assets, while ensuring operational efficiency and the smooth delivery of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Allseas	Exact match	Châtel-saint-denis, SwitzerlandHQ recorded Sep 29, 2026	1,001-5,000	2,554 contacts →
	Exact match “Allseas is a world-leading contractor in the offshore energy market.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Estrutural	Exact match	Porto Alegre, BrazilHQ recorded Sep 29, 2026	1,001-5,000	2,461 contacts →
	Exact match “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	OCYAN	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 29, 2026	1,001-5,000	2,427 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 · Sep 29, 2026 · View company records in RevenueBase
24	Brasfels	Exact match	Angra Dos Reis, BrazilHQ recorded Sep 29, 2026	5,001-10,000	2,370 contacts →
	Exact match “Empresa multinacional na área de construção e reparos de navios e plataformas.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Zamil Offshore Services Company	Exact match	Al-khobar, Saudi ArabiaHQ recorded Sep 29, 2026	1,001-5,000	2,312 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 · Sep 29, 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 “offshore platform maintenance services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 9,430 offshore platform maintenance services worldwide

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Offshore platform maintenance services worldwide at a glance

As of Sep 29, 2026

15.4%Verified-email coverage

51.9Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Singapore

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,520

11-50

3,435

51-200

1,985

201-500

764

501-1,000

330

1,001-5,000

278

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 offshore platform maintenance services are linked below.
What qualifies: Company records worldwide whose business descriptions match “offshore platform maintenance services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 75,304 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 September 29, 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.

Offshore platform maintenance services by location

60 lists · largest first

Every Offshore platform maintenance 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 “offshore platform maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore platform maintenance services are there worldwide?

RevenueBase identified 9,430 company matches for offshore platform maintenance services worldwide as of September 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?

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

Which country has the most offshore platform maintenance services?

The United States leads with 881 companies, followed by Brazil (628) and the United Kingdom (577). Every offshore platform maintenance services list by country and city is linked on this page.

Which city has the most offshore platform maintenance services?

Singapore leads with 249 company records, followed by Houston (202) and Port Harcourt (174).

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 75,304 professional contacts with verified work emails tracked across these 9,430 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 September 29, 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.