Company lists · Data refreshed November 2026

Top 11 Vessel conversion companies based in France

RevenueBase identified 60 company matches for vessel conversion companies associated with France as of November 2026 and tracks 3,289 professional contacts across them, including 1,227 with verified work emails. La Rochelle is the largest hub.

This list covers company matches for vessel conversion companies associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
60Companies
3,289Contacts tracked
1,227Verified emails
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The 11 largest vessel conversion companies based in France

Ranked by team size
Top 11 of 60 company matches for vessel conversion companies based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSaint-nazaire, FranceHQ recorded Nov 6, 20261,001-5,0002,178 contacts →

Exact match

“Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLa Ciotat, FranceHQ recorded Nov 6, 202651-200161 contacts →

Exact match

“MB92 La Ciotat, part of the MB92 Group, is a shipyard based on the French Riviera, a traditional hotspot for superyacht charters, providing superyacht refit and repair service on…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSaint Mandrier S/mer, FranceHQ recorded Nov 6, 202651-20083 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMarseille, FranceHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“MACOR is a company specializing in ship repair and maintenance for 40 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLa Ciotat, FranceHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“The Nautech group, specialized in the refit and maintenance of yahcts, is a human-sized shipyard with more than 25 years of experience in the service of some of the most beautiful…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLe Havre, FranceHQ recorded Nov 6, 20261,001-5,00024 contacts →

Exact match

“Héritier du savoir-faire d’ACH Engineering, l’entreprise a évolué au travers de son activité de maintenance des équipements livrés.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLa Ciotat Cedex, FranceHQ recorded Nov 6, 20261,001-5,00023 contacts →

Exact match

“As one of the world leaders in refitting and repairing mega yachts, LA CIOTAT SHIPYARDS is managed by the SEMIDEP-Ciotat Local Public Company (SPL).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSix Fours Les Plages, FranceHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLa Rochelle, FranceHQ recorded Nov 6, 202611-5017 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNantes, FranceHQ recorded Nov 6, 2026n/a2 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDinard, FranceHQ recorded Nov 6, 202611-501 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 11 of 60 vessel conversion companies based in France

See the full list, filter by size, metro and specialty, and access 1,227 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Vessel conversion companies based in France at a glance

As of Nov 6, 2026
37.3%Verified-email coverage
54.8Average contacts per company
11-50Median size (employees)
8.3%Largest-city concentration · La Rochelle
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
26
51-200
6
1,001-5,000
4

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 60 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with France whose business descriptions match “vessel conversion companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,227 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “vessel conversion companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many vessel conversion companies are there based in France?

RevenueBase identified 60 company matches for vessel conversion companies associated with France as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Chantiers DE L'atlantique tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most vessel conversion companies?

La Rochelle leads with 5 company records, followed by Marseille (4) and Concarneau (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,227 professional contacts with verified work emails tracked across these 60 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.