Company lists · Data refreshed September 2026

Top 18 Offshore platform installation services based in France

Name: Offshore platform installation services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 43 companies tracked

RevenueBase identified 43 offshore platform installation services headquartered in France as of September 2026 and tracks 12,496 professional contacts across them, including 2,594 with verified work emails and 191 with mobile numbers. Montpellier is the largest hub.

This list covers offshore platform installation services 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

43Companies

12,496Contacts tracked

2,594Verified emails

191Mobile numbers

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The 18 largest offshore platform installation services based in France

Ranked by team size

Top 18 of 43 offshore platform installation services based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names offshore platform installation services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	AltradIndirect evidence	Montpellier, FranceHQ checked Sep 5, 2026	10001+	3,056
	“ALTRAD AT A GLANCE Altrad is a world leader in the provision of industrial services, generating high-added value solutions principally for the Energy, Power Generation, Oil & Gas…” Source: company website · checked Sep 5, 2026
2	Chantiers DE L'atlantiqueIndirect evidence	Saint-nazaire, FranceHQ checked Sep 5, 2026	1,001-5,000	2,004
	“Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Source: company website · checked Sep 5, 2026
3	Groupe Ponticelli FrèresIndirect evidence	FranceHQ checked Sep 5, 2026	5,001-10,000	1,829
	“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…” Source: company website · checked Sep 5, 2026
4	Foure LagadecIndirect evidence	Le Havre, FranceHQ checked Sep 5, 2026	1,001-5,000	718
	“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…” Source: company website · checked Sep 5, 2026
5	Entrepose GroupIndirect evidence	Colombes, FranceHQ checked Sep 5, 2026	1,001-5,000	240
	“SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Source: company website · checked Sep 5, 2026
6	GeoceanIndirect evidence	Cassis, FranceHQ checked Sep 5, 2026	n/a	216
	“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Source: company website · checked Sep 5, 2026
7	ITP InterpipeIndirect evidence	Louveciennes, FranceHQ checked Sep 5, 2026	51-200	110
	“Since 1992 ITP Interpipe, based in Paris and Houston, has specialized in the design, provision and fabrication of highly insulated pipelines.” Source: company website · checked Sep 5, 2026
8	Stat MarineIndirect evidence	Nîmes, FranceHQ checked Sep 5, 2026	51-200	81
	“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…” Source: company website · checked Sep 5, 2026
9	Geps TechnoStrong evidence	Guérande, FranceHQ checked Sep 5, 2026	11-50	25
	“GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Source: company website · checked Sep 5, 2026
10	MarealPartial evidence	L'haÿ-les-roses, FranceHQ checked Sep 5, 2026	11-50	25
	“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: company website · checked Sep 5, 2026
11	D2m EngineeringPartial evidence	Six Fours Les Plages, FranceHQ checked Sep 5, 2026	11-50	19
	“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…” Source: company website · checked Sep 5, 2026
12	Neotech EnergyPartial evidence	Brest, FranceHQ checked Sep 5, 2026	11-50	17
	“NEOTECH ENERGY est une entreprise spécialisée en installation et maintenance industrielle et navale.” Source: company website · checked Sep 5, 2026
13	FlexifranceIndirect evidence	Le Trait, FranceHQ checked Sep 5, 2026	11-50	13
	Source: company website · checked Sep 5, 2026
14	DV OffshorePartial evidence	Saint-cloud, FranceHQ checked Sep 5, 2026	1-10	13
	“DV Offshore’s expertise includes floating systems, terminals, mooring systems, floating wind turbines, subsea production, pipelines & risers, allowing us to provide technical and…” Source: company website · checked Sep 5, 2026
15	TES TechniforIndirect evidence	Gondreville, FranceHQ checked Sep 5, 2026	11-50	13
	“Aujourd’hui acteur majeur des travaux spéciaux dans tout le quart Nord Est de la France, T.E.S.(Travaux Entretien Subaquatiques) fut fondée en 1982 par Patrick CHAMPLON à Toul.” Source: company website · checked Sep 5, 2026
16	Kappa Offshore SolutionsPartial evidence	St-Nazaire, FranceHQ checked Sep 5, 2026	1-10	12
	“Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” Source: company website · checked Sep 5, 2026
17	NovawellIndirect evidence	Montpellier, FranceHQ checked Sep 5, 2026	11-50	7
	“NOVAWELL provides subsea technologies and services to the oil and gas industry, including pre-commissioning, inspection, maintenance and repair of subsea umbilicals, risers…” Source: company website · checked Sep 5, 2026
18	Bourbon Offshore GaiaIndirect evidence	Marseille, FranceHQ checked Sep 5, 2026	11-50	1
	Source: company website · checked Sep 5, 2026

Showing 18 of 43 offshore platform installation services based in France

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Offshore platform installation services based in France at a glance

As of Sep 5, 2026

11-50Median size (employees)

MontpellierLargest hub · 2 HQs

191Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

2,441

31–60

141

61–90

90–180

180+

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 platform installation services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 platform installation services”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among offshore platform installation services, 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 an evidence 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, 2,594 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 5, 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

How many offshore platform installation services are there based in France?

RevenueBase identified 43 offshore platform installation services 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?

Altrad, headquartered in Montpellier, tops this list with the largest team on record.

Which city has the most offshore platform installation services?

Montpellier leads with 2 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 2,594 verified decision-maker contacts tracked across these 43 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 5, 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.