Company lists · Data refreshed September 2026

Top 25 Oil rig fabrication companies worldwide

Name: Oil rig fabrication companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 2,043 companies tracked

RevenueBase identified 2,043 oil rig fabrication companies worldwide as of September 2026 and tracks 237,080 professional contacts across them, including 41,680 with verified work emails and 0 with mobile numbers. The United States is the largest market and Houston the largest hub.

This list covers oil rig fabrication companies 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 17, 2026. Country and city lists for oil rig fabrication companies 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 17, 2026 86% judged on-target in blind review

2,043Companies

237,080Contacts tracked

41,680Verified emails

0Mobile numbers

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The 25 largest oil rig fabrication companies worldwide

Ranked by team size

Top 25 of 2,043 oil rig fabrication companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil rig fabrication companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Saipem	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	10001+	34,095 contacts →
	Indirect evidence “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Source: RevenueBase Database · checked Sep 17, 2026
2	Mcdermott International, LTD	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	20,135 contacts →
	Indirect evidence “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
3	SBM Offshore	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 17, 2026	5,001-10,000	8,478 contacts →
	Indirect evidence “SBM Offshore is the world’s deepwater ocean-infrastructure expert.” Source: RevenueBase Database · checked Sep 17, 2026
4	Turner Industries	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 2026	10001+	8,018 contacts →
	Partial evidence “Turner Industries provides a single solution in heavy industrial construction, maintenance, turnaround, pipe and module fabrication, equipment, rigging and specialized…” Source: RevenueBase Database · checked Sep 17, 2026
5	Lamprell	Partial evidence	Sharjah, United Arab EmiratesHQ checked Sep 17, 2026	5,001-10,000	6,080 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
6	Nabors Industries	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	5,865 contacts →
	Indirect evidence “Nabors Industries is a leading provider of advanced technology for the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	Noble Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	5,601 contacts →
	Partial evidence “Noble is a leading offshore drilling contractor for the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
8	Seadrill	Partial evidence	Houston, United StatesHQ checked Sep 17, 2026	1,001-5,000	4,845 contacts →
	Partial evidence “Seadrill is setting the standard in deepwater oil and gas drilling.” Source: RevenueBase Database · checked Sep 17, 2026
9	ADES	Partial evidence	Al Khobar, Saudi ArabiaHQ checked Sep 17, 2026	5,001-10,000	3,251 contacts →
	Partial evidence “ADES is a world-leading international provider of oil and gas drilling services.” Source: RevenueBase Database · checked Sep 17, 2026
10	Valaris Limited	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	3,173 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 17, 2026
11	Heerema Marine Contractors	Indirect evidence	Leiden, NetherlandsHQ checked Sep 17, 2026	1,001-5,000	2,643 contacts →
	Indirect evidence “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
12	Estrutural	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,461 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 17, 2026
13	Brasfels	Indirect evidence	Angra Dos Reis, BrazilHQ checked Sep 17, 2026	5,001-10,000	2,370 contacts →
	Indirect evidence “Empresa multinacional na área de construção e reparos de navios e plataformas.” Source: RevenueBase Database · checked Sep 17, 2026
14	OIL States International	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,215 contacts →
	Partial evidence “Oil States International, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
15	Arabian Drilling	Partial evidence	Al-khobar, Saudi ArabiaHQ checked Sep 17, 2026	5,001-10,000	2,042 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 17, 2026
16	Odfjell Drilling	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,864 contacts →
	Indirect evidence “Odfjell Drilling is an international drilling company with around 1,500 employees with operations around the world.” Source: RevenueBase Database · checked Sep 17, 2026
17	Borr Drilling	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,699 contacts →
	Partial evidence “Borr Drilling Limited is an offshore shallow-water drilling contractor providing worldwide offshore drilling services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
18	Bumi Armada	Partial evidence	Kuala Lumpur, MalaysiaHQ checked Sep 17, 2026	1,001-5,000	1,628 contacts →
	Partial evidence “At Bumi Armada, we amplify competency to resonate with the changing Oil & Gas industry demands, values and expectations.” Source: RevenueBase Database · checked Sep 17, 2026
19	Sembcorp Marine LTD	Indirect evidence	SingaporeHQ checked Sep 17, 2026	1,001-5,000	1,610 contacts →
	Indirect evidence “Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…” Source: RevenueBase Database · checked Sep 17, 2026
20	International Maritime Industries	Indirect evidence	Ras Al-khair, Saudi ArabiaHQ checked Sep 17, 2026	10001+	1,538 contacts →
	Indirect evidence “تُعد الشركة العالمية للصناعات البحرية أكبر حوض بحري متكامل يقدم جميع الخدمات في منطقة الشرق الأوسط وشمال أفريقيا، وهي مشروع مشترك بين أرامكو السعودية، والبحري، ولامبريل، وهيونداي…” Source: RevenueBase Database · checked Sep 17, 2026
21	Audubon Companies	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,488 contacts →
	Partial evidence “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Source: RevenueBase Database · checked Sep 17, 2026
22	ARO Drilling	Partial evidence	Dammam, Saudi ArabiaHQ checked Sep 17, 2026	1,001-5,000	1,249 contacts →
	Partial evidence “ARO is a world-class offshore drilling contractor that owns, operates, and manages a fleet of high-specification and premium jack-up rigs in Saudi Arabia.” Source: RevenueBase Database · checked Sep 17, 2026
23	Abraj Energy Services	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	1,001-5,000	1,244 contacts →
	Indirect evidence “Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Source: RevenueBase Database · checked Sep 17, 2026
24	Estaleiro Mauá S A	Indirect evidence	Niterói, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,019 contacts →
	Indirect evidence “O MAIS EXPERIENTE ESTALEIRO DO BRASIL O Mauá é o mais experiente e tradicional estaleiro em operação no Brasil com atividades desde 1845.” Source: RevenueBase Database · checked Sep 17, 2026
25	Adyard ABU Dhabi LLC	Partial evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 17, 2026	1,001-5,000	990 contacts →
	Partial evidence “Adyard is one of the United Arab Emirates (UAE) leading providers of services to the oil and gas, power, and water industries.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil rig fabrication companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oil rig fabrication companies.
Partial evidence: Its own public description names part of oil rig fabrication companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil rig fabrication companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,043 oil rig fabrication companies worldwide

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Oil rig fabrication companies worldwide at a glance

As of Sep 17, 2026

17.6%Verified-email coverage

116.0Average contacts per company

11-50Median size (employees)

7.4%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

387

11-50

667

51-200

554

201-500

203

501-1,000

1,001-5,000

103

5,001-10,000

10001+

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 oil rig fabrication companies, 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: 17 countries, largest first: the United States, Nigeria, India, the United Kingdom, the United Arab Emirates, Canada, China, Singapore, Brazil, Norway and 7 more. Country and city lists for oil rig fabrication companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “oil rig fabrication companies”. 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 oil rig fabrication companies), 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 oil rig fabrication companies, 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, 41,680 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 17, 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.

Oil rig fabrication companies by location

17 lists · largest first

Every Oil rig fabrication companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 oil rig fabrication companies, 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 oil rig fabrication companies are there worldwide?

RevenueBase identified 2,043 oil rig fabrication companies 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?

Saipem, headquartered in Milan, tops this list with the largest team on record.

Which country has the most oil rig fabrication companies?

The United States leads with 645 companies, followed by Nigeria (158) and India (153). Every oil rig fabrication companies list by country and city is linked on this page.

Which city has the most oil rig fabrication companies?

Houston leads with 151 headquartered companies, followed by Singapore (76) and Port Harcourt (50).

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 41,680 verified decision-maker contacts tracked across these 2,043 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 17, 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.