Company lists · Data refreshed September 2026

Top 22 Offshore platform engineering companies based in France

RevenueBase identified 48 offshore platform engineering companies headquartered in France as of September 2026 and tracks 6,080 professional contacts across them, including 1,989 with verified work emails and 61 with mobile numbers. Paris is the largest hub.

This list covers offshore platform engineering 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, 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
48Companies
6,080Contacts tracked
1,989Verified emails
61Mobile numbers
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The 22 largest offshore platform engineering companies based in France

Ranked by team size
Top 22 of 48 offshore platform engineering companies 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 engineering companies: 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.
#CompanyHeadquartersEmployeesContacts
1
Chantiers DE L'atlantiqueIndirect evidence
Saint-nazaire, FranceHQ checked Sep 5, 20261,001-5,0002,004

“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
2
Groupe Ponticelli FrèresIndirect evidence
FranceHQ checked Sep 5, 20265,001-10,0001,829

“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
3
Foure LagadecIndirect evidence
Le Havre, FranceHQ checked Sep 5, 20261,001-5,000718

“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
4
Entrepose GroupIndirect evidence
Colombes, FranceHQ checked Sep 5, 20261,001-5,000240

“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
5
GeoceanIndirect evidence
Cassis, FranceHQ checked Sep 5, 2026n/a216

“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
6
ITP InterpipeIndirect evidence
Louveciennes, FranceHQ checked Sep 5, 202651-200110

“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
7
Stat MarinePartial evidence
Nîmes, FranceHQ checked Sep 5, 202651-20081

“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
8
EKWILPartial evidence
Nanterre, FranceHQ checked Sep 5, 202611-5026

“Born from a collaboration between SBM Offshore and Technip Energies, Ekwil represents an unparalleled commitment and ambition for growth in Floating Offshore Wind power.”

Source: company website · checked Sep 5, 2026
9
Geps TechnoStrong evidence
Guérande, FranceHQ checked Sep 5, 202611-5025

“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
MarealStrong evidence
L'haÿ-les-roses, FranceHQ checked Sep 5, 202611-5025

“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, 202611-5019

“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
FlexifranceIndirect evidence
Le Trait, FranceHQ checked Sep 5, 202611-5013
Source: company website · checked Sep 5, 2026
13
DV OffshorePartial evidence
Saint-cloud, FranceHQ checked Sep 5, 20261-1013

“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
14
Kappa Offshore SolutionsStrong evidence
St-Nazaire, FranceHQ checked Sep 5, 20261-1012

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

Source: company website · checked Sep 5, 2026
15
Nautilus DynamicsStrong evidence
Nice, FranceHQ checked Sep 5, 20261-108

OFFSHORE ENGINEERING SOLUTIONS At NAUTILUS DYNAMICS, we support and provide solutions to our clients in the offshore wind, oil and gas, floating PV, ports and other coastal…”

Source: company website · checked Sep 5, 2026
16
Oppy InternationalIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-108

“Oppy International is a consulting firm specializing in marine projects, focusing on naval systems, maritime infrastructure, and floating structures across Europe, Canada, and…”

Source: company website · checked Sep 5, 2026
17
NovawellIndirect evidence
Montpellier, FranceHQ checked Sep 5, 202611-507

“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
WindglazStrong evidence
Lorient, FranceHQ checked Sep 5, 20261-106

“WINDGLAZ performs engineering studies in the field of offshore and floating wind energy.”

Source: company website · checked Sep 5, 2026
19
Eole StabIndirect evidence
Puget Ville, FranceHQ checked Sep 5, 20261-104

“Dans un contexte de transition énergétique où les énergies marines renouvelables offrent de grandes perspectives de développement, la rencontre de ces savoir-faire durant 6 années…”

Source: company website · checked Sep 5, 2026
20
Geoz ConsultingStrong evidence
Nice, FranceHQ checked Sep 5, 20261-104

“GeoZ Consulting is a specialized and globally focused consultancy company, offering geotechnical services and engineering project management to the offshore industry.”

Source: company website · checked Sep 5, 2026
21
Emc3 FrancePartial evidence
Toulon, FranceHQ checked Sep 5, 202611-503

“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: company website · checked Sep 5, 2026
22
Ultramarine EuropeIndirect evidence
Rambouillet, FranceHQ checked Sep 5, 20261-102

“ULTRAMARINE EUROPE is a publishing company based out of 2 RUE CHASLES, RAMBOUILLET, France.”

Source: company website · checked Sep 5, 2026

Showing 22 of 48 offshore platform engineering companies based in France

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Offshore platform engineering companies based in France at a glance

As of Sep 5, 2026
11-50Median size (employees)
ParisLargest hub · 5 HQs
61Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
22
11-50
12
51-200
6
201-500
1
501-1,000
2
1,001-5,000
3
5,001-10,000
1

Verified emails by last verification

0–30
1,864
31–60
119
61–90
0
90–180
0
180+
6

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 engineering companies, 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 engineering companies”. 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 engineering 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 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, 1,989 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 engineering companies are there based in France?

RevenueBase identified 48 offshore platform engineering 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?

Chantiers DE L'atlantique, headquartered in Saint-Nazaire, tops this list with the largest team on record.

Which city has the most offshore platform engineering companies?

Paris leads with 5 headquartered companies, followed by Nice (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 1,989 verified decision-maker contacts tracked across these 48 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.