Company lists · Data refreshed September 2026

Top 16 Offshore vessel builders based in France

RevenueBase identified 63 offshore vessel builders headquartered in France as of September 2026 and tracks 7,883 professional contacts across them, including 1,168 with verified work emails. Concarneau is the largest hub.

This list covers offshore vessel builders 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 20, 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 20, 2026 86% judged on-target in blind review
63Companies
7,883Contacts tracked
1,168Verified emails
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The 16 largest offshore vessel builders based in France

Ranked by team size
Top 16 of 63 offshore vessel builders based in France, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore vessel builders: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSaint-nazaire, FranceHQ checked Sep 20, 20261,001-5,0002,004 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 20, 2026
2Indirect evidenceGujan-mestras, FranceHQ checked Sep 20, 2026201-500213 contacts →

Indirect evidence

“Couach est un acteur pionnier dans la construction de navires professionnels et de plaisance, comme dans les services navals.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceSaint Mandrier S/mer, FranceHQ checked Sep 20, 202651-20067 contacts →

Indirect evidence

“IMS was founded in 1987 for the construction of aluminium passenger transport boats.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceBoulogne-sur-mer, FranceHQ checked Sep 20, 2026201-50040 contacts →

Indirect evidence

“D’une réputation acquise depuis près de 60 années d’expérience au service d’une clientèle exigeante, SOCARENAM s’adapte en permanence pour répondre aux besoins spécifiques des…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceL'haÿ-les-roses, FranceHQ checked Sep 20, 202611-5025 contacts →

Partial 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 20, 2026
6Partial evidenceSix Fours Les Plages, FranceHQ checked Sep 20, 202611-5019 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 20, 2026
7Indirect evidenceConcarneau, FranceHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“New Building Custom or semi-custom, the yachts built at JFA Yachts, sail the world over, proving every day their capacity to combine performance, reliability, comfort and…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceLa Rochelle, FranceHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“LECAMUS a une activité principale de réparation et de construction navale.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“Agence d'architectes navals pour la plaisance et les professionnels.”

Source: RevenueBase Database · checked Sep 20, 2026
10Strong evidenceAix En Provence, FranceHQ checked Sep 20, 2026201-5007 contacts →

Strong evidence

“Operating a modern fleet of vessels with highly qualified and seasoned personnel, Jifmar provides assistance to - Offshore Wind Farm Operators - Tidal and Wave Farm Operators -…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceBiot, FranceHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceToulouse, FranceHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“LMG Marin is one of World's leading naval architect and ship design office.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceFécamp, FranceHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“Créée en 1961 par M.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceMarseille, FranceHQ checked Sep 20, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceNantes Cedex 3, FranceHQ checked Sep 20, 20261-101 contacts →

Partial evidence

“ADVANCED AERODYNAMIC VESSELS is a fast ship Design and Construction company based out 13 rue de la Brigantine, France.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceAntibes, FranceHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“New Builds & Crew Placements”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 16 of 63 offshore vessel builders based in France

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Offshore vessel builders based in France at a glance

As of Sep 20, 2026
14.8%Verified-email coverage
125.1Average contacts per company
11-50Median size (employees)
6.3%Largest-city concentration · Concarneau
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
25
51-200
5
201-500
7
1,001-5,000
7

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 63 companies.

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 vessel builders, 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 vessel builders”. 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 vessel builders), 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 vessel builders, 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, 1,168 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 20, 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 vessel builders, 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 vessel builders are there based in France?

RevenueBase identified 63 offshore vessel builders 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 vessel builders?

Concarneau leads with 4 headquartered companies, followed by La Rochelle (2) and Marseille (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 1,168 verified decision-maker contacts tracked across these 63 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 20, 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.