Company lists · Data refreshed September 2026

Top 25 Naval engineering firms based in France

Name: Naval 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 79 companies tracked

RevenueBase identified 79 naval engineering firms headquartered in France as of September 2026 and tracks 14,196 professional contacts across them, including 1,215 with verified work emails. Nantes is the largest hub.

This list covers naval 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

79Companies

14,196Contacts tracked

1,215Verified emails

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The 25 largest naval engineering firms based in France

Ranked by team size

Top 25 of 79 naval 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 naval 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	Naval Group	Partial evidence	Paris Cedex 15, FranceHQ checked Sep 17, 2026	10001+	11,130 contacts →
	Partial evidence “As an international naval defence player, Naval Group is a partner for countries seeking to maintain control of their maritime sovereignty.” Source: RevenueBase Database · checked Sep 17, 2026
2	Chantiers DE L'atlantique	Indirect evidence	Saint-nazaire, FranceHQ checked Sep 17, 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 17, 2026
3	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
4	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
5	Foure Lagadec Marine	Partial evidence	Le Havre, FranceHQ checked Sep 17, 2026	1,001-5,000	27 contacts →
	Partial evidence “Héritier du savoir-faire d’ACH Engineering, l’entreprise a évolué au travers de son activité de maintenance des équipements livrés.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	Rivoyre Ingénierie	Indirect evidence	Valbonne, FranceHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect 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
8	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
9	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
10	Stirling Design International	Partial evidence	Nantes, FranceHQ checked Sep 17, 2026	1-10	10 contacts →
	Partial evidence “Stirling Design International, design and naval architecture office based in Nantes, France, has specialized in detailled design and project management for inland and seagoing…” Source: RevenueBase Database · checked Sep 17, 2026
11	Delion Architecture Navale	Partial evidence	Nantes, FranceHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “Agence d'architectes navals pour la plaisance et les professionnels.” Source: RevenueBase Database · checked Sep 17, 2026
12	Breakingwave Services	Strong evidence	La Ciotat, FranceHQ checked Sep 17, 2026	1-10	8 contacts →
	Strong evidence “Breakingwave Services is providing engineering services in marine engineering and naval architecture with a strong focus on- Naval Architecture: Stability, Inclining test…” Source: RevenueBase Database · checked Sep 17, 2026
13	Oppy International	Partial evidence	Nantes, FranceHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial 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 17, 2026
14	Bañulsdesign	Strong evidence	Larmor-baden, FranceHQ checked Sep 17, 2026	1-10	8 contacts →
	Strong evidence “BAÑULSDESIGN is a Naval Architecture & Maritime Engineering company developping advanced procedures and methodologies to address the new challenges of more sustainable, greener…” Source: RevenueBase Database · checked Sep 17, 2026
15	NDAR	Indirect evidence	Antibes, FranceHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “NDAR is a fully owned, limited company.” Source: RevenueBase Database · checked Sep 17, 2026
16	Herskovits & Tobie	Partial evidence	Nantes, FranceHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “H&T is a specialized naval architecture consulting firm.” Source: RevenueBase Database · checked Sep 17, 2026
17	Oeuvres Vives Naval Architecture	Strong evidence	Colomiers, FranceHQ checked Sep 17, 2026	1-10	5 contacts →
	Strong evidence “OEUVRES VIVES NAVAL ARCHITECTURE is a naval engineering agency, always looking for bolder, greener and more innovative solutions, and in line with contemporary needs.” Source: RevenueBase Database · checked Sep 17, 2026
18	Coprexma	Partial evidence	Pont-l'abbé, FranceHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “Le bureau d’architecture et d’études navales COPREXMA concentre près de 40 ans d’expertise dans la conception de tous types de navires professionnels.” Source: RevenueBase Database · checked Sep 17, 2026
19	Lebéfaude Solutions Navales	Partial evidence	Vélizy-villacoublay, FranceHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “LSN est spécialisée en architecture et expertise navales pour tous types de navires maritimes et fluviaux, alliant innovation, performance et conformité réglementaire.” Source: RevenueBase Database · checked Sep 17, 2026
20	SB Yacht Design	Indirect evidence	La Teste De Buch, FranceHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Based in the Arcachon Basin and La Rochelle, we are passionate about creating vessels that combine aesthetics, functionality, and performance.” Source: RevenueBase Database · checked Sep 17, 2026
21	LMG Marin France	Partial evidence	Toulouse, FranceHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “LMG Marin is one of World's leading naval architect and ship design office.” Source: RevenueBase Database · checked Sep 17, 2026
22	Naval Engineering Services	Partial evidence	Bordeaux, FranceHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “NES vous accompagne dans vos travaux d'ingénierie et d'architecture navale en vous proposant des services sur-mesure d'études navales.” Source: RevenueBase Database · checked Sep 17, 2026
23	Sea-Conception	Indirect evidence	Les Sables D'olonne, FranceHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Bureau d'études, Conception 2D/3D, Conseils et Réalisations en matière de construction navale en tout genre, d'agencement, d'innovation de pièces et d'assemblage tous matériaux…” Source: RevenueBase Database · checked Sep 17, 2026
24	N&v Ship	Partial evidence	La Montagne, FranceHQ checked Sep 17, 2026	1-10	2 contacts →
	Partial evidence “N&V Ship is an engineering company in noise and vibrations specialized in shipbuilding and the marine industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	AYD SAS	Strong evidence	Biot, FranceHQ checked Sep 17, 2026	1-10	1 contacts →
	Strong evidence “ARDOIN YACHT DESIGN SAS - Pure Yachting Spirit Naval Architecture since 2010 : AROUND SERVICES : • New project • Convertion & Refit • Classification • Marine Engineering • Owner…” 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: naval 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 naval engineering firms.
Partial evidence: Its own public description names part of naval engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name naval 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 79 naval engineering firms based in France

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Naval engineering firms based in France at a glance

As of Sep 17, 2026

8.6%Verified-email coverage

179.7Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · Nantes

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 79 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 naval 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 “naval 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 naval 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 naval 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, 1,215 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 naval 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 naval engineering firms are there based in France?

RevenueBase identified 79 naval 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?

Naval Group, headquartered in France, tops this list with the largest team on record.

Which city has the most naval engineering firms?

Nantes leads with 5 headquartered companies, followed by Paris (4) and Lorient (3).

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 1,215 verified decision-maker contacts tracked across these 79 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.