Company lists · Data refreshed September 2026

Top 25 Marine engineering and consulting firms based in France

Name: Marine engineering and consulting firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 727 companies tracked

RevenueBase identified 727 marine engineering and consulting firms headquartered in France as of September 2026 and tracks 22,380 professional contacts across them, including 7,775 with verified work emails. Paris is the largest hub.

This list covers marine engineering and consulting firms 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 28, 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 28, 2026 86% judged on-target in blind review

727Companies

22,380Contacts tracked

7,775Verified emails

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The 25 largest marine engineering and consulting firms based in France

Ranked by team size

Top 25 of 727 marine engineering and consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marine engineering and consulting firms: 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	Chantiers DE L'atlantique	Partial evidence	Saint-nazaire, FranceHQ checked Sep 28, 2026	1,001-5,000	2,004 contacts →
	Partial evidence “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Source: RevenueBase Database · checked Sep 28, 2026
2	Groupe Ponticelli Frères	Indirect evidence	FranceHQ checked Sep 28, 2026	5,001-10,000	1,829 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
3	EKIUM	Indirect evidence	Lyon Cedex 07, FranceHQ checked Sep 28, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “Welcome to Ekium!” Source: RevenueBase Database · checked Sep 28, 2026
4	Vulcain Engineering Group	Strong evidence	Neuilly-sur-seine, FranceHQ checked Sep 28, 2026	5,001-10,000	1,496 contacts →
	Strong evidence “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Source: RevenueBase Database · checked Sep 28, 2026
5	Parlym	Partial evidence	Estaque, FranceHQ checked Sep 28, 2026	1,001-5,000	732 contacts →
	Partial evidence “For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.” Source: RevenueBase Database · checked Sep 28, 2026
6	Foure Lagadec	Indirect evidence	Le Havre, FranceHQ checked Sep 28, 2026	1,001-5,000	718 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
7	Groupe Géotec	Indirect evidence	Quetigny, FranceHQ checked Sep 28, 2026	501-1,000	441 contacts →
	Indirect evidence “Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Source: RevenueBase Database · checked Sep 28, 2026
8	Neo2	Partial evidence	Levallois-perret, FranceHQ checked Sep 28, 2026	501-1,000	390 contacts →
	Partial evidence “NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Source: RevenueBase Database · checked Sep 28, 2026
9	Doris Group	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	501-1,000	365 contacts →
	Partial evidence “DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.” Source: RevenueBase Database · checked Sep 28, 2026
10	Atlantic Ingénierie	Indirect evidence	Saint-herblain, FranceHQ checked Sep 28, 2026	201-500	341 contacts →
	Indirect evidence “Atlantic Ingénierie, l’énergie d’avancer ensemble Chez Atlantic Ingénierie, nous avons une conviction : les projets d’énergie et d’industrie avancent mieux quand on allie…” Source: RevenueBase Database · checked Sep 28, 2026
11	Anotech	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	501-1,000	292 contacts →
	Partial evidence “Anotech delivers complex energy projects by integrating project governance, controls, engineering integrity, and execution into a single, accountable delivery model across the…” Source: RevenueBase Database · checked Sep 28, 2026
12	Entrepose Group	Indirect evidence	Colombes, FranceHQ checked Sep 28, 2026	1,001-5,000	240 contacts →
	Indirect evidence “SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Source: RevenueBase Database · checked Sep 28, 2026
13	Geocean	Partial evidence	Cassis, FranceHQ checked Sep 28, 2026	n/a	216 contacts →
	Partial 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 28, 2026
14	Baudouin	Partial evidence	Cassis, FranceHQ checked Sep 28, 2026	51-200	178 contacts →
	Partial evidence “For 100 years, Moteurs Baudouin has manufactured the highest quality engines for marine and power generation applications.” Source: RevenueBase Database · checked Sep 28, 2026
15	Aventa	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	176 contacts →
	Partial evidence “Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.” Source: RevenueBase Database · checked Sep 28, 2026
16	Axodyn	Indirect evidence	Limonest, FranceHQ checked Sep 28, 2026	51-200	153 contacts →
	Indirect evidence “AXODYN – L’ingénierie des projets complexes Créée en 2013, AXODYN accompagne les grands acteurs de l’Énergie, de l’Industrie et des Infrastructures sur des projets techniques à…” Source: RevenueBase Database · checked Sep 28, 2026
17	ACEPP	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	144 contacts →
	Indirect evidence “INGÉNIERISTE DE LA CONSTRUCTION DES INFRASTRUCTURES COMPLEXES Pour garantir à nos clients, le transfert réussi à l’exploitant des d’infrastructures complexes, notre département…” Source: RevenueBase Database · checked Sep 28, 2026
18	Setec Énergie Environnement	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	143 contacts →
	Partial evidence “Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Source: RevenueBase Database · checked Sep 28, 2026
19	Ingenica	Indirect evidence	Sérézin-du-rhône, FranceHQ checked Sep 28, 2026	51-200	116 contacts →
	Indirect evidence “INGENICA, entité de Equans Process Solutions, réalise des prestations d’ingénierie de conception et de maitrise d’œuvre de projets industriels pour les industries des procédés.” Source: RevenueBase Database · checked Sep 28, 2026
20	Oneside	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	107 contacts →
	Indirect evidence “Société de conseil en ingénierie, nous proposons notre expertise dans 3 domaines - Énergies & Industrie - Infrastructures Ferroviaires - Génie civil & Bâtiment.” Source: RevenueBase Database · checked Sep 28, 2026
21	OTIMO	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	51-200	106 contacts →
	Indirect evidence “otimo est une société de conseil en ingénierie spécialisée dans les secteurs de l'Énergie, l'Environnement et les Infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
22	IMING	Partial evidence	Montrouge, FranceHQ checked Sep 28, 2026	51-200	100 contacts →
	Partial evidence “IMING is an expert in the engineering of highly technical projects, covering the entire value chain in the fields of mobility services, energy and construction.” Source: RevenueBase Database · checked Sep 28, 2026
23	Arpon Technologies	Indirect evidence	Montrouge, FranceHQ checked Sep 28, 2026	51-200	93 contacts →
	Indirect evidence “ARPON TECHNOLOGIES est une société de conseils spécialisée en ingénierie et management de projet.” Source: RevenueBase Database · checked Sep 28, 2026
24	Lombardi Ingénierie France	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	91 contacts →
	Indirect evidence “Créée en 1955 par Giovanni Lombardi en Suisse, Lombardi est une société de conseil en matière de services d’ingénierie.” Source: RevenueBase Database · checked Sep 28, 2026
25	CNN MCO	Indirect evidence	Guipavas, FranceHQ checked Sep 28, 2026	51-200	87 contacts →
	Indirect evidence “OUR IDENTITY 10 years’ experience in Operational Ship Maintenance for third parties • Experienced ship-owners who are aware of and adapt to the needs of both our civil and…” Source: RevenueBase Database · checked Sep 28, 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: marine engineering and consulting firms. 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 marine engineering and consulting firms.
Partial evidence: Its own public description names part of marine engineering and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine engineering and consulting firms. 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 727 marine engineering and consulting firms based in France

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Marine engineering and consulting firms based in France at a glance

As of Sep 28, 2026

34.7%Verified-email coverage

30.8Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

425

11-50

203

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 727 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 marine engineering and consulting firms, 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 “marine engineering and consulting firms”. 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 marine engineering and consulting firms), 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 marine engineering and consulting firms, 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, 7,775 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 28, 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.

Marine engineering and consulting firms by metro

Marine engineering and consulting firms in Paris55

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 marine engineering and consulting firms, 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 marine engineering and consulting firms are there based in France?

RevenueBase identified 727 marine engineering and consulting firms 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 marine engineering and consulting firms?

Paris leads with 55 headquartered companies, followed by Marseille (19) and Lyon (16).

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 7,775 verified decision-maker contacts tracked across these 727 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 28, 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.