Company lists · Data refreshed September 2026

Top 25 Offshore platform repair contractors worldwide

RevenueBase identified 4,684 offshore platform repair contractors worldwide as of September 2026 and tracks 272,924 professional contacts across them, including 37,942 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers offshore platform repair contractors worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for offshore platform repair contractors follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
4,684Companies
272,924Contacts tracked
37,942Verified emails
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The 25 largest offshore platform repair contractors worldwide

Ranked by team size
Top 25 of 4,684 offshore platform repair contractors worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to offshore platform repair contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceZug, SwitzerlandHQ checked Sep 29, 20261,001-5,00010,068 contacts →

Partial evidence

“Transocean is a leading international provider of offshore contract drilling services for oil and gas wells.”

Source: RevenueBase Database · checked Sep 29, 2026
2Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 20265,001-10,0005,601 contacts →

Strong evidence

“Noble is a leading offshore drilling contractor for the oil and gas industry.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceChuo-ku, JapanHQ checked Sep 29, 20265,001-10,0005,077 contacts →

Partial evidence

“MODEC has been a leading provider of solutions for the floating offshore oil and gas market for over 50 years.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceHouston, United StatesHQ checked Sep 29, 20261,001-5,0004,845 contacts →

Indirect evidence

“Seadrill is setting the standard in deepwater oil and gas drilling.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20265,001-10,0003,290 contacts →

Partial evidence

“Tidewater Inc.(Tidewater) is the owner and operator of the world’s largest Offshore Support Vessel (OSV) fleet.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceAl Khobar, Saudi ArabiaHQ checked Sep 29, 20265,001-10,0003,251 contacts →

Indirect evidence

“ADES is a world-leading international provider of oil and gas drilling services.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 20265,001-10,0003,173 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceBergen, NorwayHQ checked Sep 29, 20265,001-10,0002,942 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceRio De Janeiro, BrazilHQ checked Sep 29, 20261,001-5,0002,922 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceMacaé, BrazilHQ checked Sep 29, 20261,001-5,0002,752 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceRecife, BrazilHQ checked Sep 29, 20265,001-10,0002,746 contacts →

Indirect evidence

“Fundada em 1983, a Engeman atua com excelência no desenvolvimento de soluções para os diversos setores da indústria.”

Source: RevenueBase Database · checked Sep 29, 2026
12Strong evidenceLeiden, NetherlandsHQ checked Sep 29, 20261,001-5,0002,643 contacts →

Strong evidence

“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceChâtel-saint-denis, SwitzerlandHQ checked Sep 29, 20261,001-5,0002,554 contacts →

Strong evidence

“Allseas is a world-leading contractor in the offshore energy market.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidencePorto Alegre, BrazilHQ checked Sep 29, 20261,001-5,0002,461 contacts →

Indirect evidence

“Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 29, 20261,001-5,0002,427 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceAngra Dos Reis, BrazilHQ checked Sep 29, 20265,001-10,0002,370 contacts →

Partial evidence

“Empresa multinacional na área de construção e reparos de navios e plataformas.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceDubai, United Arab EmiratesHQ checked Sep 29, 20265,001-10,0002,355 contacts →

Partial evidence

“P&O Maritime Logistics is a leading provider of marine solutions with focus on offshore energy, port services and cargo transport.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceAl-khobar, Saudi ArabiaHQ checked Sep 29, 20261,001-5,0002,312 contacts →

Partial evidence

“Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceBrazilHQ checked Sep 29, 2026n/a2,224 contacts →

Indirect evidence

“Rov company.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceComuna 1, ArgentinaHQ checked Sep 29, 20261,001-5,0002,064 contacts →

Indirect evidence

“Somos la mayor prestadora de servicios de perforación de la Argentina y somos líderes en la prestación de servicios asociados al mantenimiento y optimización de los pozos de…”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceAl-khobar, Saudi ArabiaHQ checked Sep 29, 20265,001-10,0002,042 contacts →

Partial evidence

“We are the region’s trusted onshore and offshore oil & gas drilling company with an extensive track record of operational excellence and advanced capabilities that have enabled…”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceErnakulam, IndiaHQ checked Sep 29, 202610001+1,999 contacts →

Indirect evidence

“Cochin Shipyard was incorporated in the year 1972 as a fully owned Government of India company.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceMacaé, BrazilHQ checked Sep 29, 20261,001-5,0001,898 contacts →

Indirect evidence

“No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceNiterói, BrazilHQ checked Sep 29, 20261,001-5,0001,847 contacts →

Indirect evidence

“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceFontvieille, MonacoHQ checked Sep 29, 20265,001-10,0001,843 contacts →

Indirect evidence

“Dietsmann is the leading independent specialist in Operation & Maintenance services for continuous-production plant in the oil & gas and power industries with over 40 years of…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 4,684 offshore platform repair contractors worldwide

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Offshore platform repair contractors worldwide at a glance

As of Sep 29, 2026
13.9%Verified-email coverage
58.3Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · Singapore
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,248
11-50
1,721
51-200
983
201-500
359
501-1,000
164
1,001-5,000
145
5,001-10,000
28
10001+
21

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among offshore platform repair contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for offshore platform repair contractors are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “offshore platform repair contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names offshore platform repair contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among offshore platform repair contractors, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 37,942 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Offshore platform repair contractors by location

34 lists · largest first

Every Offshore platform repair contractors 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names offshore platform repair contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many offshore platform repair contractors are there worldwide?

RevenueBase identified 4,684 offshore platform repair contractors worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Transocean, headquartered in Zug, tops this list with the largest team on record.

Which country has the most offshore platform repair contractors?

The United States leads with 444 companies, followed by the United Arab Emirates (290) and Nigeria (274). Every offshore platform repair contractors list by country and city is linked on this page.

Which city has the most offshore platform repair contractors?

Singapore leads with 178 headquartered companies, followed by Dubai (112) and Houston (83).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 37,942 verified decision-maker contacts tracked across these 4,684 companies.

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 Smart Search, 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.