Company lists · Data refreshed September 2026

Top 25 Offshore engineering companies based in France

Name: Offshore engineering companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 208 companies tracked

RevenueBase identified 208 company matches for offshore engineering companies associated with France as of September 2026 and tracks 27,197 professional contacts across them, including 5,649 with verified work emails. Paris is the largest hub.

This list covers company matches for offshore engineering companies associated with France, 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 17, 2026.

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 17, 2026 How this list was built

208Companies

27,197Contacts tracked

5,649Verified emails

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The 25 largest offshore engineering companies based in France

Ranked by team size

Top 25 of 208 company matches for offshore engineering companies based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Sep 17, 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 17, 2026 · View company records in RevenueBase
2	Altrad	Exact match	Montpellier, FranceHQ recorded Sep 17, 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 17, 2026 · View company records in RevenueBase
3	Chantiers DE L'atlantique	Exact match	Saint-nazaire, FranceHQ recorded Sep 17, 2026	1,001-5,000	2,004 contacts →
	Exact match “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Groupe Ponticelli Frères	Exact match	FranceHQ recorded Sep 17, 2026	5,001-10,000	1,829 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 · Sep 17, 2026 · View company records in RevenueBase
5	EKIUM	Exact match	Lyon Cedex 07, FranceHQ recorded Sep 17, 2026	1,001-5,000	1,502 contacts →
	Exact match “Welcome to Ekium!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Parlym	Exact match	Estaque, FranceHQ recorded Sep 17, 2026	1,001-5,000	732 contacts →
	Exact match “For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Foure Lagadec	Exact match	Le Havre, FranceHQ recorded Sep 17, 2026	1,001-5,000	718 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 · Sep 17, 2026 · View company records in RevenueBase
8	3c Metal	Exact match	Sauvelade, FranceHQ recorded Sep 17, 2026	1,001-5,000	518 contacts →
	Exact match “Established in 1995 in France, 3C Metal Group is a recognized leader in providing sophisticated engineering services to the oil and gas, green technology, renewable energy, power…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Neo2	Exact match	Levallois-perret, FranceHQ recorded Sep 17, 2026	501-1,000	390 contacts →
	Exact match “NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Doris Group	Exact match	Paris, FranceHQ recorded Sep 17, 2026	501-1,000	365 contacts →
	Exact match “DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Atlantic Ingénierie	Exact match	Saint-herblain, FranceHQ recorded Sep 17, 2026	201-500	341 contacts →
	Exact match “Atlantic Ingénierie, l’énergie d’avancer ensemble Chez Atlantic Ingénierie, nous avons une conviction : les projets d’énergie et d’industrie avancent mieux quand on allie…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Alpha Maintenance	Exact match	Rouen, FranceHQ recorded Sep 17, 2026	201-500	265 contacts →
	Exact match “Alpha Maintenance is an oil and energy company based out of Avenue Auguste Marius Peyre, Port-de-Bouc, France.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Entrepose Group	Exact match	Colombes, FranceHQ recorded Sep 17, 2026	1,001-5,000	240 contacts →
	Exact match “SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Gestal	Exact match	Saint-Andre-Des-Eaux, FranceHQ recorded Sep 17, 2026	501-1,000	220 contacts →
	Exact match “Gestal est un acteur majeur des services à l’industrie depuis près de 80 ans.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Geocean	Exact match	Cassis, FranceHQ recorded Sep 17, 2026	n/a	216 contacts →
	Exact match “GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Arkadia Group	Exact match	Aix-en-provence, FranceHQ recorded Sep 17, 2026	201-500	215 contacts →
	Exact match “Créée en 2010, ARKADIA Group est une société d’ingénierie et de services indépendante à taille humaine d’environ 300 personnes dédiée aux filières Énergétique, et…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Aventa	Exact match	Paris, FranceHQ recorded Sep 17, 2026	201-500	176 contacts →
	Exact match “Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Bouygues Energies & Services, Industry	Exact match	Guyancourt, FranceHQ recorded Sep 17, 2026	1,001-5,000	154 contacts →
	Exact match “Bouygues Energies & Services, Energy and Industry, a subsidiary of Equans, is a specialist design, build, and maintain partner for the industries of today and tomorrow.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Axodyn	Exact match	Limonest, FranceHQ recorded Sep 17, 2026	51-200	153 contacts →
	Exact match “AXODYN – L’ingénierie des projets complexes Créée en 2013, AXODYN accompagne les grands acteurs de l’Énergie, de l’Industrie et des Infrastructures sur des projets techniques à…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	ITP Interpipe	Exact match	Louveciennes, FranceHQ recorded Sep 17, 2026	51-200	110 contacts →
	Exact match “Since 1992 ITP Interpipe, based in Paris and Houston, has specialized in the design, provision and fabrication of highly insulated pipelines.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	IES	Exact match	Notre Dame De Gravenchon, FranceHQ recorded Sep 17, 2026	51-200	110 contacts →
	Exact match “L’ingénierie à taille humaine sur l’Axe Seine Le Havre-Rouen Implantés à Port-Jérôme-sur-Seine et Grand Couronne, nous accompagnons les acteurs des secteurs stratégiques …” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Stat Marine	Exact match	Nîmes, FranceHQ recorded Sep 17, 2026	51-200	81 contacts →
	Exact match “Created in 1983, STAT MARINE is an entrepreneurial and client-focused organisation; it has won its reputation not only for its practical approach to operational and engineering…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Dolfines	Exact match	Montigny Le Bretonneux, FranceHQ recorded Sep 17, 2026	51-200	73 contacts →
	Exact match “Dolfines is an independent engineering and services specialist assisting industrial clients across the energy value chain in achieving operational excellence.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	TVA Engineering	Exact match	Antony, FranceHQ recorded Sep 17, 2026	51-200	73 contacts →
	Exact match “Since 1988, TVA Engineering member of TVA Group has carried its expertise into industrial applications of numerous sectors that are equally demanding in technical expertise…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Groupe Inatis	Exact match	Villeneuve-d’ascq, FranceHQ recorded Sep 17, 2026	51-200	69 contacts →
	Exact match “Postuler à nos offres d'emploi : Envoyer votre CV : Le Groupe Inatis, Ingénierie et Conseil en technologies, est spécialisé dans l’assistance technique aux grands donneurs…” Recorded in the RevenueBase company graph · Sep 17, 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 engineering companies”. 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 208 offshore engineering companies based in France

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Offshore engineering companies based in France at a glance

As of Sep 17, 2026

20.8%Verified-email coverage

130.8Average contacts per company

11-50Median size (employees)

6.7%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 208 companies.

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.
What qualifies: Company records associated with France whose business descriptions match “offshore engineering companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 5,649 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 17, 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.

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 engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore engineering companies are there based in France?

RevenueBase identified 208 company matches for offshore engineering companies associated with France 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?

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

Which city has the most offshore engineering companies?

Paris leads with 14 company records, followed by Marseille (5) and Aix-En-Provence (4).

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 5,649 professional contacts with verified work emails tracked across these 208 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 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 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.