Company lists · Data refreshed November 2026

Top 25 Offshore petroleum platform contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 8,528 companies tracked

RevenueBase identified 8,528 company matches for offshore petroleum platform contractors worldwide as of November 2026 and tracks 700,325 professional contacts across them, including 114,032 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers company matches for offshore petroleum platform contractors 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 5, 2026. Country and city lists for offshore petroleum platform contractors 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 5, 2026 How this list was built

8,528Companies

700,325Contacts tracked

114,032Verified emails

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The 25 largest offshore petroleum platform contractors worldwide

Ranked by team size

Top 25 of 8,528 company matches for offshore petroleum platform contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 Nov 5, 2026	10001+	36,899 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 · Nov 5, 2026 · View company records in RevenueBase
2	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Nov 5, 2026	10001+	21,606 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Aker Solutions	Exact match	Fornebu, NorwayHQ recorded Nov 5, 2026	10001+	16,534 contacts →
	Exact match “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Petrofac	Exact match	London, United KingdomHQ recorded Nov 5, 2026	5,001-10,000	13,144 contacts →
	Exact match “We are a leading international service provider to the energy industry, with a diverse client portfolio including many of the world’s leading energy companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Technip Former Company	Exact match	United KingdomHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
6	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	11,748 contacts →
	Exact match “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Transocean	Exact match	Zug, SwitzerlandHQ recorded Nov 5, 2026	1,001-5,000	11,020 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 · Nov 5, 2026 · View company records in RevenueBase
8	SBM Offshore	Exact match	Amsterdam, NetherlandsHQ recorded Nov 5, 2026	5,001-10,000	9,397 contacts →
	Exact match “SBM Offshore is the world’s deepwater ocean-infrastructure expert.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Nov 5, 2026	5,001-10,000	7,517 contacts →
	Exact match “SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Nmdc Energy	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 5, 2026	10001+	7,360 contacts →
	Exact match “Established in 1973, NMDC Energy (formerly NPCC) is a leading EPC company working in the energy sector.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Lamprell	Exact match	Sharjah, United Arab EmiratesHQ recorded Nov 5, 2026	5,001-10,000	6,498 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 · Nov 5, 2026 · View company records in RevenueBase
12	Noble Corporation	Exact match	Houston, TX, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
13	MODEC	Exact match	Chuo-ku, JapanHQ recorded Nov 5, 2026	5,001-10,000	5,542 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 · Nov 5, 2026 · View company records in RevenueBase
14	Bonatti	Exact match	Parma, United StatesHQ recorded Nov 5, 2026	5,001-10,000	5,460 contacts →
	Exact match “Bonatti is an International Contractor providing services to energy industry with over 75 years of experience.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Aesa A-Evangelista SA	Exact match	Canning, IndiaHQ recorded Nov 5, 2026	5,001-10,000	5,428 contacts →
	Exact match “Since 1948 we specialize in projects for the energy industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Seadrill	Exact match	Houston, United StatesHQ recorded Nov 5, 2026	1,001-5,000	5,319 contacts →
	Exact match “Seadrill is setting the standard in deepwater oil and gas drilling.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Seatrium	Exact match	United StatesHQ recorded Nov 5, 2026	10001+	5,162 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 · Nov 5, 2026 · View company records in RevenueBase
18	Target Engineering Construction CO LLC	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 5, 2026	5,001-10,000	4,857 contacts →
	Exact match “Target Engineering Construction Company was established in 1975 and operates through its specialized divisions – Power, Oil and Gas Division and Civil & Marine Division.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Deme Group	Exact match	Beveren-kruibeke-zwijndrecht, BelgiumHQ recorded Nov 5, 2026	5,001-10,000	4,731 contacts →
	Exact match “DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Bilfinger	Exact match	Mannheim, GermanyHQ recorded Nov 5, 2026	10001+	4,349 contacts →
	Exact match “Bilfinger is an international industrial services provider with a vision to be the No.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	UTC Engenharia	Exact match	São Paulo, BrazilHQ recorded Nov 5, 2026	10001+	3,894 contacts →
	Exact match “The Company operates in sundry markets, taking the lead in such sectors as oil & gas production and processing, petrochemicals, power generation, steel production, paper & pulp…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Nov 5, 2026	10001+	3,602 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 · Nov 5, 2026 · View company records in RevenueBase
23	Altrad	Exact match	Montpellier, FranceHQ recorded Nov 5, 2026	10001+	3,588 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 · Nov 5, 2026 · View company records in RevenueBase
24	ENPPI	Exact match	Nasr City 1, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,542 contacts →
	Exact match “Enppi is globally recognized as a major engineering, EPC main contractor, and management contractor, with decades of experience in onshore and offshore projects in the oil and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Valaris Limited	Exact match	Houston, United StatesHQ recorded Nov 5, 2026	5,001-10,000	3,352 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 · Nov 5, 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 petroleum platform contractors”. 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 8,528 offshore petroleum platform contractors worldwide

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Offshore petroleum platform contractors worldwide at a glance

As of Nov 5, 2026

16.3%Verified-email coverage

82.1Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · Singapore

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

1,794

11-50

2,845

51-200

1,981

201-500

945

501-1,000

397

1,001-5,000

377

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 petroleum platform contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “offshore petroleum platform contractors” 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 114,032 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 5, 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 petroleum platform contractors by location

67 lists · largest first

Every Offshore petroleum platform 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 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 petroleum platform contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore petroleum platform contractors are there worldwide?

RevenueBase identified 8,528 company matches for offshore petroleum platform contractors 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?

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

Which country has the most offshore petroleum platform contractors?

The United States leads with 815 companies, followed by Nigeria (660) and the United Kingdom (479). Every offshore petroleum platform contractors list by country and city is linked on this page.

Which city has the most offshore petroleum platform contractors?

Singapore leads with 200 company records, followed by Port Harcourt (190) and Houston (185).

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 114,032 professional contacts with verified work emails tracked across these 8,528 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 5, 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.