Company lists · Data refreshed September 2026

Top 25 Maritime engineering firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 226 companies tracked

RevenueBase identified 226 maritime engineering firms headquartered in France as of September 2026 and tracks 7,920 professional contacts across them, including 2,722 with verified work emails. Paris is the largest hub.

This list covers maritime engineering firms 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 17, 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 17, 2026 86% judged on-target in blind review

226Companies

7,920Contacts tracked

2,722Verified emails

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The 25 largest maritime engineering firms based in France

Ranked by team size

Top 25 of 226 maritime engineering firms based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to maritime engineering firms: 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	Partial evidence	Saint-nazaire, FranceHQ checked Sep 17, 2026	1,001-5,000	2,004 contacts →
	Partial 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 17, 2026
2	EKIUM	Indirect evidence	Lyon Cedex 07, FranceHQ checked Sep 17, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “Welcome to Ekium!” Source: RevenueBase Database · checked Sep 17, 2026
3	Foure Lagadec	Indirect evidence	Le Havre, FranceHQ checked Sep 17, 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 17, 2026
4	Geocean	Indirect evidence	Cassis, FranceHQ checked Sep 17, 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 17, 2026
5	Aventa	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	201-500	176 contacts →
	Indirect evidence “Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.” Source: RevenueBase Database · checked Sep 17, 2026
6	Louis Dreyfus Armateurs LDA	Indirect evidence	Suresnes, FranceHQ checked Sep 17, 2026	1,001-5,000	152 contacts →
	Indirect evidence “LOUIS DREYFUS ARMATEURS (LDA) provides its partners and clients with tailor-made industrial solutions and vessels.” Source: RevenueBase Database · checked Sep 17, 2026
7	Hydroconsult Sarl	Indirect evidence	Kervignac, FranceHQ checked Sep 17, 2026	11-50	49 contacts →
	Indirect evidence “Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.” Source: RevenueBase Database · checked Sep 17, 2026
8	Technifrance Groupe	Indirect evidence	Teteghem, FranceHQ checked Sep 17, 2026	51-200	47 contacts →
	Indirect evidence “Au service de ses clients depuis 35 ans, TECHNIFRANCE, bureau d’études et d’ingénierie, spécialisé dans les secteurs suivants : • Architecture Navale – Expertises – Fluvial •…” Source: RevenueBase Database · checked Sep 17, 2026
9	Vplp Design	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “VPLP Design is a world-renowned young international team of French-based naval architects, engineers and designers working from Vannes, Nantes and Paris in sail and motor craft…” Source: RevenueBase Database · checked Sep 17, 2026
10	Socarenam	Indirect evidence	Boulogne-sur-mer, FranceHQ checked Sep 17, 2026	201-500	40 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 17, 2026
11	Kent Marine Equipment	Indirect evidence	Saint-herblain, FranceHQ checked Sep 17, 2026	51-200	39 contacts →
	Indirect evidence “Depuis 1974, Kent Marine Equipment accompagne les professionnels du naval et du fluvial.” Source: RevenueBase Database · checked Sep 17, 2026
12	A.G.I.R	Indirect evidence	Suresnes, FranceHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “AGIR accompagne les industriels du naval, de l’offshore et de l’aéronautique dans la maîtrise technique et financière de leurs projets.” Source: RevenueBase Database · checked Sep 17, 2026
13	MACOR	Indirect evidence	Marseille, FranceHQ checked Sep 17, 2026	11-50	36 contacts →
	Indirect evidence “MACOR is a company specializing in ship repair and maintenance for 40 years.” Source: RevenueBase Database · checked Sep 17, 2026
14	NAVYS	Indirect evidence	Lyon, FranceHQ checked Sep 17, 2026	11-50	32 contacts →
	Indirect evidence “NAVYS, société de conseil en ingénierie crée en 2021 accompagne ses clients sur son domaine d’expertise : L’ingénierie d’infrastructure et des systèmes industriels complexes.” Source: RevenueBase Database · checked Sep 17, 2026
15	Pixel SUR MER	Indirect evidence	Lorient, FranceHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “16 years of consulting and services: mechatronic systems integration, fiber optic instrumentation, navigation, routing, hardware & software development.” Source: RevenueBase Database · checked Sep 17, 2026
16	Atlantic Propulsion Service	Indirect evidence	St Brevin Les Pins, FranceHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “Atlantic Propulsion Service is a company based in France near the Atlantic Coast close to Saint Nazaire.” Source: RevenueBase Database · checked Sep 17, 2026
17	Mareal	Partial evidence	L'haÿ-les-roses, FranceHQ checked Sep 17, 2026	11-50	25 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 17, 2026
18	D2m Engineering	Partial evidence	Six Fours Les Plages, FranceHQ checked Sep 17, 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 17, 2026
19	EGCEM	Indirect evidence	Marseille, FranceHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Créé à Marseille en 1974 sous le régime d’une SARL, transformé en 2018 en SAS au capital souscrit en totalité par son personnel, EGCEM est un bureau d’études de structure de Génie…” Source: RevenueBase Database · checked Sep 17, 2026
20	AJ Marine	Indirect evidence	Valbonne, FranceHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “AJ Marine, an official Caterpillar AMD, are experienced, quick response marine engineers that can attend to your yacht anywhere, anytime.” Source: RevenueBase Database · checked Sep 17, 2026
21	Zéphyr And Borée	Partial evidence	Lorient, FranceHQ checked Sep 17, 2026	1-10	14 contacts →
	Partial evidence “Zéphyr & Borée is a maritime company developing innovative merchant vessels in order to offer low carbon maritime transport solutions.” Source: RevenueBase Database · checked Sep 17, 2026
22	Rivoyre Ingénierie	Partial evidence	Valbonne, FranceHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “With over 30 years of expertise, Rivoyre Ingénierie excels in the calculation of composite and aluminum structures for leisure maritime construction.” Source: RevenueBase Database · checked Sep 17, 2026
23	Lecamus	Indirect evidence	La Rochelle, FranceHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “LECAMUS a une activité principale de réparation et de construction navale.” Source: RevenueBase Database · checked Sep 17, 2026
24	Oceanide	Indirect evidence	La Seyne Sur Mer, FranceHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Oceanide operates a unique combination of tests facilities in France including the BGO deep water basin (waves, wind, current), a wave flume and a shallow water wave tank.” Source: RevenueBase Database · checked Sep 17, 2026
25	Kappa Offshore Solutions	Partial evidence	St-Nazaire, FranceHQ checked Sep 17, 2026	1-10	12 contacts →
	Partial evidence “Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” 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: maritime engineering firms. 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 maritime engineering firms.
Partial evidence: Its own public description names part of maritime engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name maritime engineering firms. 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 226 maritime engineering firms based in France

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Maritime engineering firms based in France at a glance

As of Sep 17, 2026

34.4%Verified-email coverage

35.0Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

149

11-50

51-200

201-500

501-1,000

1,001-5,000

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 226 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 maritime engineering firms, 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 “maritime engineering firms”. 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 maritime engineering firms), 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 maritime engineering firms, 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, 2,722 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.

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 maritime engineering firms, 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 maritime engineering firms are there based in France?

RevenueBase identified 226 maritime engineering firms 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 maritime engineering firms?

Paris leads with 14 headquartered companies, followed by Marseille (11) and La Rochelle (9).

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 2,722 verified decision-maker contacts tracked across these 226 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.