Company lists · Data refreshed September 2026

Top 14 Offshore vessel operators based in France

RevenueBase identified 59 offshore vessel operators headquartered in France as of September 2026 and tracks 8,240 professional contacts across them, including 1,370 with verified work emails. Marseille is the largest hub.

This list covers offshore vessel operators 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
59Companies
8,240Contacts tracked
1,370Verified emails
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The 14 largest offshore vessel operators based in France

Ranked by team size
Top 14 of 59 offshore vessel operators 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 operators: 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
2Partial evidenceAix En Provence, FranceHQ checked Sep 20, 2026501-1,000313 contacts →

Partial evidence

“Jifmar is a worldwide maritime operator.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceParis, FranceHQ checked Sep 20, 2026201-500219 contacts →

Partial evidence

“Orange Marine, a wholly-owned subsidiary of the Orange Group, is a cable ship owner specialized in offshore work on submarine cables, from designing and engineering new projects…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceCassis, FranceHQ checked Sep 20, 2026n/a216 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
5Partial evidenceSuresnes, FranceHQ checked Sep 20, 20261,001-5,000152 contacts →

Partial evidence

“LOUIS DREYFUS ARMATEURS (LDA) provides its partners and clients with tailor-made industrial solutions and vessels.”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceRouen, FranceHQ checked Sep 20, 2026201-500109 contacts →

Strong 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
7Indirect evidenceParis, FranceHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

“Forssea Robotics is a smart ROV asset and services provider established in 2016 to increase productivity of underwater inspection and light intervention repeatable tasks.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceGuérande, FranceHQ checked Sep 20, 202611-5025 contacts →

Partial 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 20, 2026
9Partial evidenceSt-Nazaire, FranceHQ checked Sep 20, 20261-1012 contacts →

Partial evidence

“Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceMarseille, FranceHQ checked Sep 20, 20261-106 contacts →

Partial evidence

“ALWENA SHIPPING, your partner of choice, provide its expertise to shipowners and other maritime stakeholders for new build vessels projects, retrofit and fleet optimisation.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceParis, FranceHQ checked Sep 20, 20261-105 contacts →

Strong evidence

“The Socomet Sales team are international brokers specializing in the chartering, sale and purchase and newbuilding of vessels and rigs to support the offshore oil and gas…”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceLorient, FranceHQ checked Sep 20, 202611-502 contacts →

Indirect evidence

“COMPAGNIE OCEANE is a maritime company based out of GARE MARITIME, Lorient, Brittany, France.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceMarseille, FranceHQ checked Sep 20, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceAntibes, FranceHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“New Builds & Crew Placements”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 14 of 59 offshore vessel operators based in France

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Offshore vessel operators based in France at a glance

As of Sep 20, 2026
16.6%Verified-email coverage
139.7Average contacts per company
11-50Median size (employees)
8.5%Largest-city concentration · Marseille
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
15
51-200
3
201-500
3
501-1,000
2
1,001-5,000
8

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 59 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 operators, 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 operators”. 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 operators), 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 operators, 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, 1,370 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 operators, 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 operators are there based in France?

RevenueBase identified 59 offshore vessel operators 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 operators?

Marseille leads with 5 headquartered companies, followed by Paris (5) and Rouen (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 1,370 verified decision-maker contacts tracked across these 59 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.