Company lists · Data refreshed November 2026

Top 25 Subsea infrastructure contractors based in France

RevenueBase identified 121 company matches for subsea infrastructure contractors associated with France as of November 2026 and tracks 16,526 professional contacts across them, including 4,080 with verified work emails. La Ciotat is the largest hub.

This list covers company matches for subsea infrastructure contractors 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
121Companies
16,526Contacts tracked
4,080Verified emails
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The 25 largest subsea infrastructure contractors based in France

Ranked by team size
Top 25 of 121 company matches for subsea infrastructure contractors 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 matchSaint-quentin-en-yvelines Cedex, FranceHQ recorded Nov 6, 202610001+1,967 contacts →

Exact match

“CONSTRUIRE DES INFRASTRUCTURES DURABLES Bouygues TP est l’un des leaders mondiaux dans les domaines de l’aménagement du territoire et de la construction d’infrastructures durables.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchFranceHQ recorded Nov 6, 20265,001-10,0001,953 contacts →

Exact match

“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLes Ulis, FranceHQ recorded Nov 6, 20261,001-5,0001,263 contacts →

Exact match

“Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLe Havre, FranceHQ recorded Nov 6, 20261,001-5,000778 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNanterre, FranceHQ recorded Nov 6, 20261,001-5,000655 contacts →

Exact match

“Spiecapag at a glance A skill: Spiecapag is part of VINCI Group, specialised in the delivery of onshore pipelines and facilities such as compression, pumping and metering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchColombes, FranceHQ recorded Nov 6, 20261,001-5,000265 contacts →

Exact match

“SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchParis, FranceHQ recorded Nov 6, 2026201-500236 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCassis, FranceHQ recorded Nov 6, 2026n/a230 contacts →

Exact match

“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSassenage, FranceHQ recorded Nov 6, 2026201-500190 contacts →

Exact match

“HYDROKARST joins JARNIAS GROUP!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRouen, FranceHQ recorded Nov 6, 2026201-500124 contacts →

Exact match

“TSM owns and operates 30 vessels and offers marine services to the offshore renewables industry, harbour and sea towage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLouveciennes, FranceHQ recorded Nov 6, 202651-200118 contacts →

Exact match

“Since 1992 ITP Interpipe, based in Paris and Houston, has specialized in the design, provision and fabrication of highly insulated pipelines.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSuresnes, FranceHQ recorded Nov 6, 20261,001-5,000109 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMérignac, FranceHQ recorded Nov 6, 2026201-500105 contacts →

Exact match

“Le Groupe ADRÉ est une entité regroupant plusieurs sociétés, dont ADRÉ Réseaux, ADRÉ Eau, ADRÉ Ingénierie, ADRÉ Énergies et le Campus ADRÉ.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNîmes, FranceHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Created in 1983, STAT MARINE is an entrepreneurial and client-focused organisation; it has won its reputation not only for its practical approach to operational and engineering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDerval, FranceHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Created in 2007 by Arnaud Josse and Fabrice Chailloux, the company can rely on the strong experience of its founders and qualified teams.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPerols, FranceHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Ingénierie et services subaquatiques robotisés.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCraon, FranceHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“GENDRY SERVICE LOCATION (GSL) is a machinery company based out of ZONE D ACTIVITES DE VILLENEUVE 1 RUE DE HONGRIE, CRAON, France.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchL'haÿ-les-roses, FranceHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchParis, FranceHQ recorded Nov 6, 202611-5025 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBordeaux, FranceHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Nous sommes une entreprise spécialisée dans le secteur d'activité de la construction de réseaux pour fluides, et basée à Bordeaux.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDagneux, FranceHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Les travaux subaquatiques sont le cœur d’intervention des scaphandriers de Satif.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchGuérande, FranceHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGondreville, FranceHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Voici une version resserrée, d’environ 1 750 caractères espaces compris.”

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

Showing 25 of 121 subsea infrastructure contractors based in France

See the full list, filter by size, metro and specialty, and access 4,080 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsea infrastructure contractors based in France at a glance

As of Nov 6, 2026
24.7%Verified-email coverage
136.6Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · La Ciotat
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
31
51-200
20
201-500
9
501-1,000
2
1,001-5,000
9
5,001-10,000
1
10001+
1

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 121 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 “subsea infrastructure contractors” 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 4,080 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 “subsea infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsea infrastructure contractors are there based in France?

RevenueBase identified 121 company matches for subsea infrastructure contractors 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 subsea infrastructure contractors?

La Ciotat leads with 4 company records, followed by Paris (4) and Marseille (3).

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 4,080 professional contacts with verified work emails tracked across these 121 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.