Company lists · Data refreshed September 2026

Top 25 Marine permitting consulting firms based in France

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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceCassis, FranceHQ checked Sep 28, 2026n/a216 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
2Indirect evidenceParis, FranceHQ checked Sep 28, 202651-200143 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
3Partial evidenceRouen, FranceHQ checked Sep 28, 2026201-500109 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
4Indirect evidenceLa Rochelle, FranceHQ checked Sep 28, 202651-20090 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
5Indirect evidenceBeaucouzé, FranceHQ checked Sep 28, 202651-20053 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
6Strong evidenceKervignac, FranceHQ checked Sep 28, 202611-5049 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
7Indirect evidenceMarseille, FranceHQ checked Sep 28, 202611-5036 contacts →

Indirect evidence

“MACOR is a company specializing in ship repair and maintenance for 40 years.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceParis, FranceHQ checked Sep 28, 2026n/a31 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
9Indirect evidenceAuray, FranceHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceSix Fours Les Plages, FranceHQ checked Sep 28, 202611-5019 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
11Partial evidenceMont De Marsan, FranceHQ checked Sep 28, 202611-5019 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
12Partial evidenceMontfarville, FranceHQ checked Sep 28, 20261-1019 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
13Partial evidenceSix Fours Les Plages, FranceHQ checked Sep 28, 20261-1017 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
14Partial evidencePloeren, FranceHQ checked Sep 28, 20261-1016 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
15Partial evidenceValbonne, FranceHQ checked Sep 28, 202611-5016 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
16Indirect evidenceBruz, FranceHQ checked Sep 28, 202611-5013 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
17Indirect evidenceLa Seyne Sur Mer, FranceHQ checked Sep 28, 202611-5012 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
18Indirect evidenceBrest, FranceHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“Depuis plus de 20 ans, Actimar apporte son expertise au service de la mer.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceSt-Nazaire, FranceHQ checked Sep 28, 20261-1012 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceBiot, FranceHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“The company specializes in maritime, river and coastal engineering.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceBordeaux, FranceHQ checked Sep 28, 20261-1011 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
22Indirect evidenceBordeaux, FranceHQ checked Sep 28, 20261-1011 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
23Indirect evidenceAncenis, FranceHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“HARDY ENVIRONNEMENT est un bureau d'études et de conseil en environnement et aménagements.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceTalmont-saint-hilaire, FranceHQ checked Sep 28, 20261-108 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
25Indirect evidenceNantes, FranceHQ checked Sep 28, 20261-108 contacts →

Indirect evidence

“Agence d'architectes navals pour la plaisance et les professionnels.”

Source: RevenueBase Database · checked Sep 28, 2026

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
36
51-200
7
201-500
2
501-1,000
1
1,001-5,000
1

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.