Company lists · Data refreshed September 2026

Top 25 Marine permitting consulting firms based in France

Name: Marine permitting 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 200 companies tracked

RevenueBase identified 200 marine permitting consulting firms headquartered in France as of September 2026 and tracks 2,663 professional contacts across them, including 388 with verified work emails. Marseille is the largest hub.

This list covers marine permitting 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

200Companies

2,663Contacts tracked

388Verified emails

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The 25 largest marine permitting consulting firms based in France

Ranked by team size

Top 25 of 200 marine permitting 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 permitting 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	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
2	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	143 contacts →
	Indirect 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
3	TSM	Partial evidence	Rouen, FranceHQ checked Sep 28, 2026	201-500	109 contacts →
	Partial evidence “TSM owns and operates 30 vessels and offers marine services to the offshore renewables industry, harbour and sea towage.” Source: RevenueBase Database · checked Sep 28, 2026
4	Creocean	Indirect evidence	La Rochelle, FranceHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “Notre expertise au service des océans et des littoraux : Notre bureau d'études accompagne les projets sur l’ensemble du littoral français et à l’international, avec une expertise…” Source: RevenueBase Database · checked Sep 28, 2026
5	Aquascop Sarl	Indirect evidence	Beaucouzé, FranceHQ checked Sep 28, 2026	51-200	53 contacts →
	Indirect evidence “Aquascop est un bureau d´études indépendant spécialisé dans l´étude des milieux aquatiques, implantés sur 5 agences en France métropolitaine (Angers, Montpellier, Toulouse, Nancy…” Source: RevenueBase Database · checked Sep 28, 2026
6	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
7	MACOR	Indirect evidence	Marseille, FranceHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “MACOR is a company specializing in ship repair and maintenance for 40 years.” Source: RevenueBase Database · checked Sep 28, 2026
8	Cofrepeche	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	n/a	31 contacts →
	Partial evidence “COFREPECHE, société anonyme à conseil d'administration, a été créée en 1980 par des professionnels du monde maritime.” Source: RevenueBase Database · checked Sep 28, 2026
9	TBM Environnement	Indirect evidence	Auray, FranceHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
10	D2m Engineering	Partial evidence	Six Fours Les Plages, FranceHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 28, 2026
11	Seaneo	Partial evidence	Mont De Marsan, FranceHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “Depuis 2006, SEANEO est une société de conseil et de services en environnement littoral et marin, en aquaculture et pêche (gestion des zones côtières, Aires Marines Protégées…” Source: RevenueBase Database · checked Sep 28, 2026
12	CERES	Partial evidence	Montfarville, FranceHQ checked Sep 28, 2026	1-10	19 contacts →
	Partial evidence “Spécialisés dans l'acquisition et le traitement de données géophysiques marines, la plongée, la recherche et le renflouement d'épaves, la société CERES répond aux besoins de ses…” Source: RevenueBase Database · checked Sep 28, 2026
13	Marine Tech	Partial evidence	Six Fours Les Plages, FranceHQ checked Sep 28, 2026	1-10	17 contacts →
	Partial evidence “Plus de 20 années d'expérience dans les opérations maritimes - Créée par les fondateurs de Nymphea Environnement, la société MARINE TECH propose les activités suivantes-…” Source: RevenueBase Database · checked Sep 28, 2026
14	Accoast	Partial evidence	Ploeren, FranceHQ checked Sep 28, 2026	1-10	16 contacts →
	Partial evidence “Expertise, Conseil et Assistance à Maîtrise d'Ouvrage pour la Préservation du Patrimoine Maritime et Fluvial” Source: RevenueBase Database · checked Sep 28, 2026
15	AJ Marine	Partial evidence	Valbonne, FranceHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “AJ Marine, an official Caterpillar AMD, are experienced, quick response marine engineers that can attend to your yacht anywhere, anytime.” Source: RevenueBase Database · checked Sep 28, 2026
16	Idra BIO ET Littoral	Indirect evidence	Bruz, FranceHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “IDRA BIO ET LITTORAL is an oceanography services company based out of LA HAYE DE PAN, BRUZ, France.” Source: RevenueBase Database · checked Sep 28, 2026
17	Oceanide	Indirect evidence	La Seyne Sur Mer, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Oceanide operates a unique combination of tests facilities in France including the BGO deep water basin (waves, wind, current), a wave flume and a shallow water wave tank.” Source: RevenueBase Database · checked Sep 28, 2026
18	Actimar	Indirect evidence	Brest, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Depuis plus de 20 ans, Actimar apporte son expertise au service de la mer.” Source: RevenueBase Database · checked Sep 28, 2026
19	Kappa Offshore Solutions	Partial evidence	St-Nazaire, FranceHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” Source: RevenueBase Database · checked Sep 28, 2026
20	Acri-In	Partial evidence	Biot, FranceHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “The company specializes in maritime, river and coastal engineering.” Source: RevenueBase Database · checked Sep 28, 2026
21	Énergie DE LA Lune	Partial evidence	Bordeaux, FranceHQ checked Sep 28, 2026	1-10	11 contacts →
	Partial evidence “Énergie de la Lune est un cabinet d'ingénierie spécialisé en Énergies Marines Renouvelables et en génie océanographique.” Source: RevenueBase Database · checked Sep 28, 2026
22	Boaton	Indirect evidence	Bordeaux, FranceHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “BoatOn est la solution de référence pour simplifier la gestion des bateaux 🫰 tout en réduisant leur impact environnemental BoatOn propose 4 services - BoatOn Book : l'un des…” Source: RevenueBase Database · checked Sep 28, 2026
23	Hardy Environnement	Indirect evidence	Ancenis, FranceHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “HARDY ENVIRONNEMENT est un bureau d'études et de conseil en environnement et aménagements.” Source: RevenueBase Database · checked Sep 28, 2026
24	Iceo Environnement	Indirect evidence	Talmont-saint-hilaire, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “ICEO - Ingénierie, Conseil, Expertise dans le domaine de l'eau est un bureau d'études spécialisé dans le domaine des milieux aquatiques et l'environnement littoral.” Source: RevenueBase Database · checked Sep 28, 2026
25	Delion Architecture Navale	Indirect evidence	Nantes, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Agence d'architectes navals pour la plaisance et les professionnels.” 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 permitting 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 permitting consulting firms.
Partial evidence: Its own public description names part of marine permitting 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 permitting 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 200 marine permitting consulting firms based in France

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Marine permitting consulting firms based in France at a glance

As of Sep 28, 2026

14.6%Verified-email coverage

13.3Average contacts per company

1-10Median size (employees)

7.0%Largest-city concentration · Marseille

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

150

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 200 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 permitting 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 permitting 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 permitting 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 permitting 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, 388 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.

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 permitting 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 permitting consulting firms are there based in France?

RevenueBase identified 200 marine permitting 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?

Geocean, headquartered in Cassis, tops this list with the largest team on record.

Which city has the most marine permitting consulting firms?

Marseille leads with 14 headquartered companies, followed by Paris (10) and Brest (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 388 verified decision-maker contacts tracked across these 200 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.