Company lists · Data refreshed September 2026

Top 14 Subsea equipment installation companies based in France

RevenueBase identified 35 subsea equipment installation companies headquartered in France as of September 2026 and tracks 2,413 professional contacts across them, including 764 with verified work emails. La Ciotat is the largest hub.

This list covers subsea equipment installation 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 22, 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 22, 2026 86% judged on-target in blind review
35Companies
2,413Contacts tracked
764Verified emails
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The 14 largest subsea equipment installation companies based in France

Ranked by team size
Top 14 of 35 subsea equipment installation companies based in France, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to subsea equipment installation 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLes Ulis, FranceHQ checked Sep 22, 20261,001-5,0001,140 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceParis, FranceHQ checked Sep 22, 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 22, 2026
3Indirect evidenceCassis, FranceHQ checked Sep 22, 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 22, 2026
4Indirect evidenceLouveciennes, FranceHQ checked Sep 22, 202651-200110 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceLa Ciotat, FranceHQ checked Sep 22, 202651-20038 contacts →

Indirect evidence

“La Société a été créée à Marseille en 1977 pour répondre à la demande dans les travaux maritimes.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceL'haÿ-les-roses, FranceHQ checked Sep 22, 202611-5025 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceLe Trait, FranceHQ checked Sep 22, 202611-5013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceSaint-cloud, FranceHQ checked Sep 22, 20261-1013 contacts →

Partial evidence

“DV Offshore’s expertise includes floating systems, terminals, mooring systems, floating wind turbines, subsea production, pipelines & risers, allowing us to provide technical and…”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceSt-Nazaire, FranceHQ checked Sep 22, 20261-1012 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceMontpellier, FranceHQ checked Sep 22, 202611-507 contacts →

Partial evidence

“NOVAWELL provides subsea technologies and services to the oil and gas industry, including pre-commissioning, inspection, maintenance and repair of subsea umbilicals, risers…”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceAix En Provence, FranceHQ checked Sep 22, 2026201-5007 contacts →

Indirect evidence

“Operating a modern fleet of vessels with highly qualified and seasoned personnel, Jifmar provides assistance to - Offshore Wind Farm Operators - Tidal and Wave Farm Operators -…”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceBidart, FranceHQ checked Sep 22, 202651-2005 contacts →

Partial evidence

“KRAKEN is a French engineering company providing Subsea Cables Solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceToulon, FranceHQ checked Sep 22, 202611-503 contacts →

Partial evidence

“The Engineering Company EMC3, with Expertise in Control systems, Umbilicals and Operations for subsea developments, has been assisting the industry since EMC3 has performed…”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceMarseille, FranceHQ checked Sep 22, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 14 of 35 subsea equipment installation companies based in France

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Subsea equipment installation companies based in France at a glance

As of Sep 22, 2026
31.7%Verified-email coverage
68.9Average contacts per company
11-50Median size (employees)
8.6%Largest-city concentration · La Ciotat
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
9
51-200
5
201-500
4
501-1,000
1
1,001-5,000
2

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 35 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 subsea equipment installation 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 “subsea equipment installation 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 subsea equipment installation 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 subsea equipment installation 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, 764 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 22, 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 subsea equipment installation 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 subsea equipment installation companies are there based in France?

RevenueBase identified 35 subsea equipment installation 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?

ASN, headquartered in Les Ulis, tops this list with the largest team on record.

Which city has the most subsea equipment installation companies?

La Ciotat leads with 3 headquartered companies, followed by Paris (2) and St-Nazaire (2).

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 764 verified decision-maker contacts tracked across these 35 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 22, 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.