Company lists · Data refreshed September 2026

Top 25 Subsea systems integrators based in France

Name: Subsea systems integrators based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 73 companies tracked

RevenueBase identified 73 subsea systems integrators headquartered in France as of September 2026 and tracks 3,084 professional contacts across them, including 947 with verified work emails. La Ciotat is the largest hub.

This list covers subsea systems integrators 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 29, 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 29, 2026 86% judged on-target in blind review

73Companies

3,084Contacts tracked

947Verified emails

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The 25 largest subsea systems integrators based in France

Ranked by team size

Top 25 of 73 subsea systems integrators based in France, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to subsea systems integrators: 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	ASN	Partial evidence	Les Ulis, FranceHQ checked Sep 29, 2026	1,001-5,000	1,140 contacts →
	Partial 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 29, 2026
2	Orange Marine	Partial evidence	Paris, FranceHQ checked Sep 29, 2026	201-500	219 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 29, 2026
3	Geocean	Indirect evidence	Cassis, FranceHQ checked Sep 29, 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 29, 2026
4	C2c	Indirect evidence	Roissy En France, FranceHQ checked Sep 29, 2026	51-200	167 contacts →
	Indirect evidence “C2C est un intégrateur spécialisé dans les systèmes de communication Réseau IP couvrant les domaines des Infrastructures de câblage, le Wireless, les solutions de Vidéo Protection…” Source: RevenueBase Database · checked Sep 29, 2026
5	Sirehna	Strong evidence	Bouguenais, FranceHQ checked Sep 29, 2026	51-200	113 contacts →
	Strong evidence “SIREHNA is a subsidiary of Naval Group (French naval system integrator).” Source: RevenueBase Database · checked Sep 29, 2026
6	ITP Interpipe	Indirect evidence	Louveciennes, FranceHQ checked Sep 29, 2026	51-200	110 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 29, 2026
7	Groupe Inovelec	Indirect evidence	Boulazac, FranceHQ checked Sep 29, 2026	201-500	71 contacts →
	Indirect evidence “Votre Partenaire d'Excellence en Solutions Électroniques et Électriques » Depuis le Groupe INOVELEC incarne l'excellence dans la conception et la fabrication de cartes…” Source: RevenueBase Database · checked Sep 29, 2026
8	SIMAR	Strong evidence	Marseille, FranceHQ checked Sep 29, 2026	11-50	45 contacts →
	Strong evidence “Created in 1978, SIMAR (Société Industrielle et Maritime d'Automation et Régulation) is the leading independant system integrator for marine electronics (Civil and Naval) as well…” Source: RevenueBase Database · checked Sep 29, 2026
9	Louis Dreyfus Travocean	Indirect evidence	La Ciotat, FranceHQ checked Sep 29, 2026	51-200	38 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 29, 2026
10	Mare Custos	Partial evidence	Plouzané, FranceHQ checked Sep 29, 2026	11-50	35 contacts →
	Partial evidence “Mare Custos is a subsea robotics company designing and manufacturing the Seabot ROV family, inspection platforms built to return structured, georeferenced data from subsea assets…” Source: RevenueBase Database · checked Sep 29, 2026
11	Pixel SUR MER	Partial evidence	Lorient, FranceHQ checked Sep 29, 2026	11-50	31 contacts →
	Partial evidence “16 years of consulting and services: mechatronic systems integration, fiber optic instrumentation, navigation, routing, hardware & software development.” Source: RevenueBase Database · checked Sep 29, 2026
12	Watertracks	Indirect evidence	Perols, FranceHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “Ingénierie et services subaquatiques robotisés.” Source: RevenueBase Database · checked Sep 29, 2026
13	Forssea Robotics	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	11-50	25 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 29, 2026
14	Geps Techno	Indirect evidence	Guérande, FranceHQ checked Sep 29, 2026	11-50	25 contacts →
	Indirect 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 29, 2026
15	Mareal	Indirect evidence	L'haÿ-les-roses, FranceHQ checked Sep 29, 2026	11-50	25 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 29, 2026
16	Peinta	Indirect evidence	Cusset, FranceHQ checked Sep 29, 2026	51-200	21 contacts →
	Indirect evidence “PEINTA rejoint le pôle Nucléaire et Défense du groupe GALILE PEINTA – Une PME industrielle agile au service des environnements techniques les plus exigeants Basée à…” Source: RevenueBase Database · checked Sep 29, 2026
17	Soft Control	Indirect evidence	Plaisir, FranceHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “Créée en 1996 par l’équipe dirigeante actuelle, SOFT-CONTROL a pour vocation d’accompagner les industriels dans le développement, l’optimisation et la performance de leurs…” Source: RevenueBase Database · checked Sep 29, 2026
18	Subtop	Indirect evidence	Arpajon, FranceHQ checked Sep 29, 2026	11-50	14 contacts →
	Indirect evidence “Expert en géophysique marine et terrestre depuis 1994, Subtop propose une large gamme d’instruments et de solutions systèmes.” Source: RevenueBase Database · checked Sep 29, 2026
19	Flexifrance	Indirect evidence	Le Trait, FranceHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
20	DV Offshore	Strong evidence	Saint-cloud, FranceHQ checked Sep 29, 2026	1-10	13 contacts →
	Strong 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 29, 2026
21	Kappa Offshore Solutions	Indirect evidence	St-Nazaire, FranceHQ checked Sep 29, 2026	1-10	12 contacts →
	Indirect evidence “Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” Source: RevenueBase Database · checked Sep 29, 2026
22	Bonnavion Secure System	Partial evidence	Firminy, FranceHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “BONNAVION Secure System intègre les technologies de la construction mécanique et du soudage dans vos projets à dimension stratégique impliquant un management des interfaces…” Source: RevenueBase Database · checked Sep 29, 2026
23	RGDH	Indirect evidence	Vaux-le-pénil, FranceHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “RGDH, votre expert en solutions hydrauliques et électroniques depuis 1984.” Source: RevenueBase Database · checked Sep 29, 2026
24	Novawell	Partial evidence	Montpellier, FranceHQ checked Sep 29, 2026	11-50	7 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 29, 2026
25	SEA Vorian	Indirect evidence	Caudan, FranceHQ checked Sep 29, 2026	51-200	7 contacts →
	Indirect evidence “Le groupe SEA VORIAN est dédié à la conception, la réalisation, l’intégration et à la mise en œuvre d’équipements de hautes technologies dans les environnements marins.” Source: RevenueBase Database · checked Sep 29, 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: subsea systems integrators. 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 subsea systems integrators.
Partial evidence: Its own public description names part of subsea systems integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsea systems integrators. 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 73 subsea systems integrators based in France

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Subsea systems integrators based in France at a glance

As of Sep 29, 2026

30.7%Verified-email coverage

42.2Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · La Ciotat

Sep 29, 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 73 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 systems integrators, 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 systems integrators”. 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 systems integrators), 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 systems integrators, 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, 947 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 29, 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 systems integrators, 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 systems integrators are there based in France?

RevenueBase identified 73 subsea systems integrators 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 systems integrators?

La Ciotat leads with 3 headquartered companies, followed by Paris (3) 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 947 verified decision-maker contacts tracked across these 73 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 29, 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.