Company lists · Data refreshed November 2026

Top 25 Offshore welding contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,446 companies tracked

RevenueBase identified 5,446 company matches for offshore welding contractors worldwide as of November 2026 and tracks 159,247 professional contacts across them, including 21,516 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers company matches for offshore welding 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 6, 2026. Country and city lists for offshore welding 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 6, 2026 How this list was built

5,446Companies

159,247Contacts tracked

21,516Verified emails

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The 25 largest offshore welding contractors worldwide

Ranked by team size

Top 25 of 5,446 company matches for offshore welding contractors 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	Seatrium	Exact match	United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
2	Gran Services S.A	Exact match	Macaé, BrazilHQ recorded Nov 6, 2026	1,001-5,000	3,117 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Estrutural	Exact match	Porto Alegre, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,955 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 · Nov 6, 2026 · View company records in RevenueBase
4	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
5	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
6	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
7	Groupe Ponticelli Frères	Exact match	FranceHQ recorded Nov 6, 2026	5,001-10,000	1,953 contacts →
	Exact match “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Sembcorp Marine LTD	Exact match	SingaporeHQ recorded Nov 6, 2026	1,001-5,000	1,672 contacts →
	Exact match “Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	International Maritime Industries	Exact match	Ras Al-khair, Saudi ArabiaHQ recorded Nov 6, 2026	10001+	1,651 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Deepocean	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	1,001-5,000	1,607 contacts →
	Exact match “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	CCC Underwater Engineering S.A.L	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026	201-500	1,344 contacts →
	Exact match “(Underwater Engineering) S.A.L was established in 1976.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	BELOV	Exact match	Matriz, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,251 contacts →
	Exact match “A Belov Engenharia foi criada em 1981 em Salvador/BA, pelo engenheiro Aleixo Belov, que à época desfrutava de uma experiência de 15 anos de participação na condução das maiores…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	ASRY	Exact match	Hidd, BahrainHQ recorded Nov 6, 2026	1,001-5,000	1,247 contacts →
	Exact match “ASRY is the Arabian Gulf’s most experienced maritime repair and fabrication facility.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Estaleiro Mauá S A	Exact match	Niterói, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,194 contacts →
	Exact match “O MAIS EXPERIENTE ESTALEIRO DO BRASIL O Mauá é o mais experiente e tradicional estaleiro em operação no Brasil com atividades desde 1845.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Qatar Shipyard Technology Solutions	Exact match	Ras Laffan Industrial City, QatarHQ recorded Nov 6, 2026	1,001-5,000	1,033 contacts →
	Exact match “Qatar Shipyard Technology Solutions, an award-winning shipyard was inaugurated on 23 November 2010 as part of the Erhama Bin Jaber Al Jalahma Shipyard complex.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Repcon, INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	917 contacts →
	Exact match “Repcon has earned a reputation for leading the industry in turnarounds, specialty welding, construction, pipe fabrication, and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	C-Innovation, LLC	Exact match	Mandeville, TX, JamaicaHQ recorded Nov 6, 2026	201-500	884 contacts →
	Exact match “YOUR SINGLE SOURCE FOR SUBSEA SOLUTIONS FROM EQUIPMENT TO EXPERIENCE, C-INNOVATION IS THE SUBSEA SOLUTION C-Innovation (C-I) is an integrated marine services company specializing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Allianz Middle East Ship Management LLC	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	816 contacts →
	Exact match “With offices in Abu Dhabi, Dubai, Qatar and Singapore, Allianz Middle East Ship Management LLC(Allianz-ME) is a well-established marine contractors providing modern Offshore…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Techocean Engineering Solutions	Exact match	Macaé, BrazilHQ recorded Nov 6, 2026	501-1,000	812 contacts →
	Exact match “Techocean is a supplier of engineering services focused on the oil & gas industry, creating solutions for steel fabrications as Platforms, Piping Lines, Several Structures and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Foure Lagadec	Exact match	Le Havre, FranceHQ recorded Nov 6, 2026	1,001-5,000	778 contacts →
	Exact match “Building on its industrial heritage, its strong ties to the Snef Group, and its commitment to innovation, Fouré Lagadec continues to evolve to meet the technical and energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Asyad Drydock	Exact match	Al Duqm, OmanHQ recorded Nov 6, 2026	1,001-5,000	767 contacts →
	Exact match “Asyad Drydock (Oman Drydock Company L.L.C )(ODC), a member of Asyad Group, based at the Port of Duqm and strategically located close to global shipping routes benefitting…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Serimax	Exact match	Roissy-En-France, FranceHQ recorded Nov 6, 2026	501-1,000	759 contacts →
	Exact match “Since 1978, Serimax has earned a global reputation as a leader in high-performance orbital welding solutions for pipelines and piping infrastructure, delivering on some of the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Yantai Cimc Raffles Offshore LTD	Exact match	Yantai, ChinaHQ recorded Nov 6, 2026	10001+	759 contacts →
	Exact match “Yantai CIMC Raffles Offshore Technology Group Co, Ltd.(“CIMC Raffles”) is a leading offshore engineering and high-end marine equipment group in China, with a strong focus on the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Dixstone	Exact match	Hoofddorp, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	658 contacts →
	Exact match “Headquartered in Hoofddorp, the Netherlands, Dixstone is an affiliate of the Perenco Group, specialized in integrated solutions for the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Grupo R	Exact match	Mexico City, MexicoHQ recorded Nov 6, 2026	501-1,000	656 contacts →
	Exact match “Grupo R is a conglomerate of companies dedicated to provide specialized services to the Energy and Industrial Sector.” 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 “offshore welding 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 5,446 offshore welding contractors worldwide

See the full list, filter by size, metro and specialty, and access 21,516 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore welding contractors worldwide at a glance

As of Nov 6, 2026

13.5%Verified-email coverage

29.2Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · Singapore

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

1,634

11-50

1,980

51-200

1,112

201-500

349

501-1,000

136

1,001-5,000

123

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 welding contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “offshore welding 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 21,516 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.

Offshore welding contractors by location

36 lists · largest first

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

How many offshore welding contractors are there worldwide?

RevenueBase identified 5,446 company matches for offshore welding 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?

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

Which country has the most offshore welding contractors?

The United States leads with 687 companies, followed by the United Kingdom (420) and Brazil (253). Every offshore welding contractors list by country and city is linked on this page.

Which city has the most offshore welding contractors?

Singapore leads with 136 company records, followed by Houston (70) and Dubai (65).

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 21,516 professional contacts with verified work emails tracked across these 5,446 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.