Company lists · Data refreshed September 2026

Top 25 Marine engineering consulting firms based in France

Name: Marine engineering 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 455 companies tracked

RevenueBase identified 455 marine engineering consulting firms headquartered in France as of September 2026 and tracks 11,572 professional contacts across them, including 4,318 with verified work emails. Paris is the largest hub.

This list covers marine engineering 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

455Companies

11,572Contacts tracked

4,318Verified emails

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The 25 largest marine engineering consulting firms based in France

Ranked by team size

Top 25 of 455 marine engineering 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 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	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
3	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
4	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
5	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
6	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
7	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
8	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
9	BTP Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	92 contacts →
	Indirect evidence “Société à taille humaine, BTP Ingénierie est un bureau d’étude spécialisé dans le domaine du calcul de structures et du diagnostic des structures existantes.” Source: RevenueBase Database · checked Sep 28, 2026
10	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
11	Stat Marine	Strong evidence	Nîmes, FranceHQ checked Sep 28, 2026	51-200	81 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 28, 2026
12	VACOA	Indirect evidence	Puteaux, FranceHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “VACOA, c’est le fruit d’un projet initié à deux par Benoit & Clément qui se sont un jour dit « Cap’ ou pas Cap’ 🤝?” Source: RevenueBase Database · checked Sep 28, 2026
13	Synapse Construction	Indirect evidence	Écully, FranceHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “SYNAPSE Construction, société d'ingénierie bureau d'études techniques (BET) dans les métiers du bâtiment, répond aux besoins des donneurs d'ordres publics et privés.” Source: RevenueBase Database · checked Sep 28, 2026
14	Ségic Ingénierie	Indirect evidence	Verrières-le-buisson, FranceHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect evidence “SÉGIC Ingénierie est un acteur fort du Conseil dans les domaines de l’Environnement et des Infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
15	Setec Diadès	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	63 contacts →
	Indirect evidence “DIADES est la société du groupe SETEC spécialisée dans le diagnostic des structures et a pour missions principales - l’ingénierie du diagnostic, de la maintenance, les études de…” Source: RevenueBase Database · checked Sep 28, 2026
16	OXIAM	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Oxiam est une société de conseil en ingénierie qui intervient à travers 3 grands domaines d’expertise - L’énergie & l'environnement - La mobilité : le transport ferroviaire et…” Source: RevenueBase Database · checked Sep 28, 2026
17	EPDC	Indirect evidence	Ivry-sur-seine, FranceHQ checked Sep 28, 2026	11-50	51 contacts →
	Indirect evidence “Bienvenue chez EPDC, expertise pluridisciplinaire et indépendante en ingénierie et études techniques, où le savoir-faire et l'innovation élaborent des solutions uniques.” Source: RevenueBase Database · checked Sep 28, 2026
18	PMM Synergies & Solutions	Indirect evidence	Dole, FranceHQ checked Sep 28, 2026	51-200	50 contacts →
	Indirect evidence “Au service des collectivités publiques, des gestionnaires des réseaux de transport et des aménageurs privés depuis 1995, la société PMM SAS est un cabinet d'ingénierie globale qui…” Source: RevenueBase Database · checked Sep 28, 2026
19	Btps Atlantique	Indirect evidence	Mérignac, FranceHQ checked Sep 28, 2026	51-200	50 contacts →
	Indirect evidence “Depuis plus de 40 ans, BTPS Atlantique, entreprise de génie civil, construit, entretient, répare et renforce les structures de génie civil de toutes natures.” Source: RevenueBase Database · checked Sep 28, 2026
20	Hydroconsult Sarl	Strong evidence	Kervignac, FranceHQ checked Sep 28, 2026	11-50	49 contacts →
	Strong evidence “Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.” Source: RevenueBase Database · checked Sep 28, 2026
21	Technifrance Groupe	Indirect evidence	Teteghem, FranceHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “Au service de ses clients depuis 35 ans, TECHNIFRANCE, bureau d’études et d’ingénierie, spécialisé dans les secteurs suivants : • Architecture Navale – Expertises – Fluvial •…” Source: RevenueBase Database · checked Sep 28, 2026
22	Et2i	Indirect evidence	Port-jérôme-sur-seine, FranceHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “L’EXPÉRIENCE EST INDISPENSABLE POUR TRAVAILLER DANS LE DOMAINE DES ETUDES TECHNIQUES D’INSTALLATIONS INDUSTRIELLES.” Source: RevenueBase Database · checked Sep 28, 2026
23	Vplp Design	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “VPLP Design is a world-renowned young international team of French-based naval architects, engineers and designers working from Vannes, Nantes and Paris in sail and motor craft…” Source: RevenueBase Database · checked Sep 28, 2026
24	Khephren Ingénierie	Indirect evidence	Arcueil, FranceHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “KHEPHREN Ingénierie est un bureau d’études dont l’activité recouvre l’ensemble des phases d’études et de réalisation des bâtiments et équipements, dans le domaine des démolitions…” Source: RevenueBase Database · checked Sep 28, 2026
25	Hexa Ingénierie	Indirect evidence	Douai, FranceHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “L’expérience de HEXA INGENIERIE s’étend dans tous les domaines de l'Ingéniérie de la construction, de l’environnement, de l’énergie et de l’exploitation.” 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 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 consulting firms.
Partial evidence: Its own public description names part of marine engineering 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 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 455 marine engineering consulting firms based in France

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Marine engineering consulting firms based in France at a glance

As of Sep 28, 2026

37.3%Verified-email coverage

25.4Average contacts per company

1-10Median size (employees)

6.4%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

285

11-50

127

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 455 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 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 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 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 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, 4,318 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 consulting firms by metro

Marine engineering consulting firms in Paris29

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 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 consulting firms are there based in France?

RevenueBase identified 455 marine engineering 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 consulting firms?

Paris leads with 29 headquartered companies, followed by Marseille (19) and Lorient (9).

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 4,318 verified decision-maker contacts tracked across these 455 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.