Company lists · Data refreshed September 2026

Top 22 Offshore platform engineering companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 48 companies tracked

RevenueBase identified 48 offshore platform engineering companies headquartered in France as of September 2026 and tracks 6,080 professional contacts across them, including 1,989 with verified work emails and 61 with mobile numbers. Paris is the largest hub.

This list covers offshore platform engineering companies headquartered in France, 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 5, 2026.

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 5, 2026 86% judged on-target in blind review

48Companies

6,080Contacts tracked

1,989Verified emails

61Mobile numbers

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The 22 largest offshore platform engineering companies based in France

Ranked by team size

Top 22 of 48 offshore platform engineering companies based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to offshore platform engineering 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	Chantiers DE L'atlantique	Indirect evidence	Saint-nazaire, FranceHQ checked Sep 5, 2026	1,001-5,000	2,004 contacts →
	Indirect evidence “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Source: RevenueBase Database · checked Sep 5, 2026
2	Groupe Ponticelli Frères	Indirect evidence	FranceHQ checked Sep 5, 2026	5,001-10,000	1,829 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
3	Foure Lagadec	Indirect evidence	Le Havre, FranceHQ checked Sep 5, 2026	1,001-5,000	718 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
4	Entrepose Group	Indirect evidence	Colombes, FranceHQ checked Sep 5, 2026	1,001-5,000	240 contacts →
	Indirect evidence “SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Source: RevenueBase Database · checked Sep 5, 2026
5	Geocean	Indirect evidence	Cassis, FranceHQ checked Sep 5, 2026	n/a	216 contacts →
	Indirect evidence “GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Source: RevenueBase Database · checked Sep 5, 2026
6	ITP Interpipe	Indirect evidence	Louveciennes, FranceHQ checked Sep 5, 2026	51-200	110 contacts →
	Indirect evidence “Since 1992 ITP Interpipe, based in Paris and Houston, has specialized in the design, provision and fabrication of highly insulated pipelines.” Source: RevenueBase Database · checked Sep 5, 2026
7	Stat Marine	Partial evidence	Nîmes, FranceHQ checked Sep 5, 2026	51-200	81 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
8	EKWIL	Partial evidence	Nanterre, FranceHQ checked Sep 5, 2026	11-50	26 contacts →
	Partial evidence “Born from a collaboration between SBM Offshore and Technip Energies, Ekwil represents an unparalleled commitment and ambition for growth in Floating Offshore Wind power.” Source: RevenueBase Database · checked Sep 5, 2026
9	Geps Techno	Strong evidence	Guérande, FranceHQ checked Sep 5, 2026	11-50	25 contacts →
	Strong evidence “GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Source: RevenueBase Database · checked Sep 5, 2026
10	Mareal	Strong evidence	L'haÿ-les-roses, FranceHQ checked Sep 5, 2026	11-50	25 contacts →
	Strong evidence “Mareal: Engineering the Future of Offshore Innovation Since its inception in 2002, Mareal has established itself as a leading force in offshore engineering, spanning the entire…” Source: RevenueBase Database · checked Sep 5, 2026
11	D2m Engineering	Partial evidence	Six Fours Les Plages, FranceHQ checked Sep 5, 2026	11-50	19 contacts →
	Partial evidence “At d2m, our expert team of marine engineers, naval architects, and offshore contractors have been committed to crafting innovative solutions for complex maritime projects for over…” Source: RevenueBase Database · checked Sep 5, 2026
12	Flexifrance	Indirect evidence	Le Trait, FranceHQ checked Sep 5, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
13	DV Offshore	Partial evidence	Saint-cloud, FranceHQ checked Sep 5, 2026	1-10	13 contacts →
	Partial evidence “DV Offshore’s expertise includes floating systems, terminals, mooring systems, floating wind turbines, subsea production, pipelines & risers, allowing us to provide technical and…” Source: RevenueBase Database · checked Sep 5, 2026
14	Kappa Offshore Solutions	Strong evidence	St-Nazaire, FranceHQ checked Sep 5, 2026	1-10	12 contacts →
	Strong evidence “Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” Source: RevenueBase Database · checked Sep 5, 2026
15	Nautilus Dynamics	Strong evidence	Nice, FranceHQ checked Sep 5, 2026	1-10	8 contacts →
	Strong evidence “OFFSHORE ENGINEERING SOLUTIONS At NAUTILUS DYNAMICS, we support and provide solutions to our clients in the offshore wind, oil and gas, floating PV, ports and other coastal…” Source: RevenueBase Database · checked Sep 5, 2026
16	Oppy International	Indirect evidence	Nantes, FranceHQ checked Sep 5, 2026	1-10	8 contacts →
	Indirect evidence “Oppy International is a consulting firm specializing in marine projects, focusing on naval systems, maritime infrastructure, and floating structures across Europe, Canada, and…” Source: RevenueBase Database · checked Sep 5, 2026
17	Novawell	Indirect evidence	Montpellier, FranceHQ checked Sep 5, 2026	11-50	7 contacts →
	Indirect evidence “NOVAWELL provides subsea technologies and services to the oil and gas industry, including pre-commissioning, inspection, maintenance and repair of subsea umbilicals, risers…” Source: RevenueBase Database · checked Sep 5, 2026
18	Windglaz	Strong evidence	Lorient, FranceHQ checked Sep 5, 2026	1-10	6 contacts →
	Strong evidence “WINDGLAZ performs engineering studies in the field of offshore and floating wind energy.” Source: RevenueBase Database · checked Sep 5, 2026
19	Eole Stab	Indirect evidence	Puget Ville, FranceHQ checked Sep 5, 2026	1-10	4 contacts →
	Indirect evidence “Dans un contexte de transition énergétique où les énergies marines renouvelables offrent de grandes perspectives de développement, la rencontre de ces savoir-faire durant 6 années…” Source: RevenueBase Database · checked Sep 5, 2026
20	Geoz Consulting	Strong evidence	Nice, FranceHQ checked Sep 5, 2026	1-10	4 contacts →
	Strong evidence “GeoZ Consulting is a specialized and globally focused consultancy company, offering geotechnical services and engineering project management to the offshore industry.” Source: RevenueBase Database · checked Sep 5, 2026
21	Emc3 France	Partial evidence	Toulon, FranceHQ checked Sep 5, 2026	11-50	3 contacts →
	Partial evidence “The Engineering Company EMC3, with Expertise in Control systems, Umbilicals and Operations for subsea developments, has been assisting the industry since EMC3 has performed…” Source: RevenueBase Database · checked Sep 5, 2026
22	Ultramarine Europe	Indirect evidence	Rambouillet, FranceHQ checked Sep 5, 2026	1-10	2 contacts →
	Indirect evidence “ULTRAMARINE EUROPE is a publishing company based out of 2 RUE CHASLES, RAMBOUILLET, France.” Source: RevenueBase Database · checked Sep 5, 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: offshore platform engineering 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 offshore platform engineering companies.
Partial evidence: Its own public description names part of offshore platform engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore platform engineering 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 22 of 48 offshore platform engineering companies based in France

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Offshore platform engineering companies based in France at a glance

As of Sep 5, 2026

32.7%Verified-email coverage

1.0%Mobile-number coverage

126.7Average contacts per company

11-50Median size (employees)

10.4%Largest-city concentration · Paris

Sep 5, 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

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,8640–30

11931–60

061–90

090–180

6180+

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 engineering 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.
What qualifies: Companies headquartered in France whose own description of what they do matches “offshore platform engineering 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 offshore platform engineering 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 offshore platform engineering companies, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
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, 1,989 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 5, 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.

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 engineering 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 offshore platform engineering companies are there based in France?

RevenueBase identified 48 offshore platform engineering companies headquartered in France 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?

Chantiers DE L'atlantique, headquartered in Saint-Nazaire, tops this list with the largest team on record.

Which city has the most offshore platform engineering companies?

Paris leads with 5 headquartered companies, followed by Nice (2) and St-Nazaire (2).

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 1,989 verified decision-maker contacts tracked across these 48 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 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 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.