Company lists · Data refreshed September 2026

Top 25 Maritime infrastructure companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 171 companies tracked

RevenueBase identified 171 maritime infrastructure companies headquartered in France as of September 2026 and tracks 5,683 professional contacts across them, including 1,676 with verified work emails. Marseille is the largest hub.

This list covers maritime infrastructure 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 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

171Companies

5,683Contacts tracked

1,676Verified emails

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The 25 largest maritime infrastructure companies based in France

Ranked by team size

Top 25 of 171 maritime infrastructure companies 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 maritime infrastructure 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	Partial evidence	Saint-nazaire, FranceHQ checked Sep 20, 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 20, 2026
2	The Port Of Marseille FOS	Indirect evidence	Marseille, FranceHQ checked Sep 20, 2026	1,001-5,000	366 contacts →
	Indirect evidence “The Port of Marseille Fos is France’s leading port and the 2nd largest mediterranean port.” Source: RevenueBase Database · checked Sep 20, 2026
3	Jifmar Group	Partial evidence	Aix En Provence, FranceHQ checked Sep 20, 2026	501-1,000	313 contacts →
	Partial evidence “Jifmar is a worldwide maritime operator.” Source: RevenueBase Database · checked Sep 20, 2026
4	Geocean	Indirect evidence	Cassis, FranceHQ checked Sep 20, 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 20, 2026
5	Louis Dreyfus Armateurs LDA	Indirect evidence	Suresnes, FranceHQ checked Sep 20, 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 20, 2026
6	TSM	Indirect evidence	Rouen, FranceHQ checked Sep 20, 2026	201-500	109 contacts →
	Indirect evidence “TSM owns and operates 30 vessels and offers marine services to the offshore renewables industry, harbour and sea towage.” Source: RevenueBase Database · checked Sep 20, 2026
7	Cofrapex	Partial evidence	Marseille, FranceHQ checked Sep 20, 2026	11-50	64 contacts →
	Partial evidence “nous sommes spécialisés dans l’avitaillement maritime et le commerce international.” Source: RevenueBase Database · checked Sep 20, 2026
8	Ports DE Lille	Indirect evidence	Lille, FranceHQ checked Sep 20, 2026	51-200	51 contacts →
	Indirect evidence “Ports de Lille, North of France :> 300 hectares of developed lands; sqm of warehouses and workshops and sqm of office buildings located on 12 sites > Intermodal transport : inland…” Source: RevenueBase Database · checked Sep 20, 2026
9	Groupe Merceron	Partial evidence	Sallertaine, FranceHQ checked Sep 20, 2026	51-200	51 contacts →
	Partial evidence “Le Groupe Merceron est un acteur majeur de la Vendée, fort de près de 70 ans d'expérience dans les travaux maritimes, fluviaux, environnementaux et l'exploitation de carrières.” Source: RevenueBase Database · checked Sep 20, 2026
10	Compagnie Interîles	Partial evidence	La Rochelle, FranceHQ checked Sep 20, 2026	11-50	36 contacts →
	Partial evidence “Le Groupe Compagnie Interîles est une compagnie maritime spécialisée dans le transport de passagers et les promenades touristiques côtières.” Source: RevenueBase Database · checked Sep 20, 2026
11	Maritime Kuhn	Partial evidence	Brest, FranceHQ checked Sep 20, 2026	501-1,000	34 contacts →
	Partial evidence “Located in 18 ports all along the french coastline, Maritime Kuhn federates a number of agencies with a high local identity, accumulating competence and field men experience…” Source: RevenueBase Database · checked Sep 20, 2026
12	GICAN	Partial evidence	Paris, FranceHQ checked Sep 20, 2026	11-50	31 contacts →
	Partial evidence “Le GICAN, Groupement des Industries de Construction et Activités Navales, fédère 300 industriels de la filière maritime française.” Source: RevenueBase Database · checked Sep 20, 2026
13	Sogebras	Partial evidence	Bouguenais Cedex, FranceHQ checked Sep 20, 2026	11-50	28 contacts →
	Partial evidence “Present in the ports of Montoir, Saint-Nazaire and Nantes, SOGEBRAS is involved in all aspects of port operations, maritime transport and logistics.” Source: RevenueBase Database · checked Sep 20, 2026
14	Hansen Marine	Indirect evidence	Croissy Beaubourg, FranceHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Marina Builder.” Source: RevenueBase Database · checked Sep 20, 2026
15	D2m Engineering	Partial evidence	Six Fours Les Plages, FranceHQ checked Sep 20, 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 20, 2026
16	Port DE Plaisance DE LA Rochelle	Indirect evidence	La Rochelle, FranceHQ checked Sep 20, 2026	51-200	18 contacts →
	Indirect evidence “Créé en 1972, le Port de plaisance de La Rochelle est l'un des plus grands ports de plaisance d'Europe et du monde avec plus de 5 places réparties sur une surface de 100 hectares.” Source: RevenueBase Database · checked Sep 20, 2026
17	Zéphyr And Borée	Partial evidence	Lorient, FranceHQ checked Sep 20, 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 20, 2026
18	Lecamus	Indirect evidence	La Rochelle, FranceHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “LECAMUS a une activité principale de réparation et de construction navale.” Source: RevenueBase Database · checked Sep 20, 2026
19	Ports DU Calvados	Indirect evidence	Hérouville-saint-clair, FranceHQ checked Sep 20, 2026	51-200	10 contacts →
	Indirect evidence “Ports du Calvados est une entreprise publique locale créée par le groupement CCI Caen Normandie / Copéport, associant le Département du Calvados et la Banque des Territoires.” Source: RevenueBase Database · checked Sep 20, 2026
20	SUD Diesel Marine	Partial evidence	Carros Cedex, FranceHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “For over 20 years, Sud Diesel Marine has been serving in the maritime industry offering a range of services from maintenance to repair of your motorboats.” Source: RevenueBase Database · checked Sep 20, 2026
21	Societe D'economie Mixte Lorient - Keroman	Partial evidence	Lorient, FranceHQ checked Sep 20, 2026	51-200	8 contacts →
	Partial evidence “SOCIETE D'ECONOMIE MIXTE LORIENT - KEROMAN is a maritime company based out of Port de Kéroman Direction du Port, Lorient, France.” Source: RevenueBase Database · checked Sep 20, 2026
22	Nautilus Dynamics	Indirect evidence	Nice, FranceHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect 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 20, 2026
23	Sodeports	Indirect evidence	Fréjus, FranceHQ checked Sep 20, 2026	51-200	8 contacts →
	Indirect evidence “Rompue à l’exploitation, la conception, l’aménagement et l’audit de ports et installations portuaires de Pêche et de Plaisance, la Société SODEPORTS capitalise au travers de ses…” Source: RevenueBase Database · checked Sep 20, 2026
24	Oppy International	Strong evidence	Nantes, FranceHQ checked Sep 20, 2026	1-10	8 contacts →
	Strong 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 20, 2026
25	Société DES Ports DU Détroit	Indirect evidence	Calais, FranceHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Société des Ports du Détroit is in charge of implementing the tasks related to design, build, finance and maintain the port of Calais extension within the 50-year concession…” Source: RevenueBase Database · checked Sep 20, 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 infrastructure 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 maritime infrastructure companies.
Partial evidence: Its own public description names part of maritime infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name maritime infrastructure 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 25 of 171 maritime infrastructure companies based in France

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Maritime infrastructure companies based in France at a glance

As of Sep 20, 2026

29.5%Verified-email coverage

33.2Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · Marseille

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

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 171 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 infrastructure 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 “maritime infrastructure 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 maritime infrastructure 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 maritime infrastructure 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, 1,676 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 maritime infrastructure 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 maritime infrastructure companies are there based in France?

RevenueBase identified 171 maritime infrastructure 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 maritime infrastructure companies?

Marseille leads with 13 headquartered companies, followed by La Rochelle (8) and Lorient (6).

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 1,676 verified decision-maker contacts tracked across these 171 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.