Company lists · Data refreshed September 2026

Top 25 Marine resource consulting firms based in France

RevenueBase identified 253 marine resource consulting firms headquartered in France as of September 2026 and tracks 5,150 professional contacts across them, including 740 with verified work emails and 65 with mobile numbers. Paris is the largest hub.

This list covers marine resource 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 5, 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 5, 2026 86% judged on-target in blind review
253Companies
5,150Contacts tracked
740Verified emails
65Mobile numbers
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The 25 largest marine resource consulting firms based in France

Ranked by team size
Top 25 of 253 marine resource consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to marine resource 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 5, 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 5, 2026
2Partial evidenceParis, FranceHQ checked Sep 5, 2026201-500176 contacts →

Partial evidence

“Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.”

Source: RevenueBase Database · checked Sep 5, 2026
3Indirect evidenceParis, FranceHQ checked Sep 5, 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 5, 2026
4Partial evidenceRouen, FranceHQ checked Sep 5, 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 5, 2026
5Indirect evidenceLa Rochelle, FranceHQ checked Sep 5, 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 5, 2026
6Strong evidenceMarseille, FranceHQ checked Sep 5, 202611-5073 contacts →

Strong evidence

“TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.”

Source: RevenueBase Database · checked Sep 5, 2026
7Indirect evidencePézenas, FranceHQ checked Sep 5, 202611-5062 contacts →

Indirect evidence

“Spécialisé dans l’expertise de la faune, de la flore et des milieux naturels, le bureau d’études ALTIFAUNE a développé une expérience technique et scientifique au service de…”

Source: RevenueBase Database · checked Sep 5, 2026
8Indirect evidenceGatteville-le-phare, FranceHQ checked Sep 5, 202651-20061 contacts →

Indirect evidence

“Bienvenue à la SATMAR!”

Source: RevenueBase Database · checked Sep 5, 2026
9Indirect evidenceBeaucouzé, FranceHQ checked Sep 5, 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 5, 2026
10Indirect evidenceGujan-mestras, FranceHQ checked Sep 5, 202611-5052 contacts →

Indirect evidence

“ENVOLIS est un bureau d’études composé de scientifiques et de consultants qui réalisent des expertises environnementales dans les domaines de l’eau, du sol et de la biodiversité…”

Source: RevenueBase Database · checked Sep 5, 2026
11Strong evidenceKervignac, FranceHQ checked Sep 5, 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 5, 2026
12Indirect evidenceLuzancy, FranceHQ checked Sep 5, 202651-20042 contacts →

Indirect evidence

“CDES, c’est 100 experts engagés et passionnés, qui mettent chaque jour leur savoir-faire au service de la préservation et la valorisation des milieux aquatiques.”

Source: RevenueBase Database · checked Sep 5, 2026
13Indirect evidenceJoue Les Tours, FranceHQ checked Sep 5, 202611-5040 contacts →

Indirect evidence

“Présentation : THEMA Environnement associe, depuis sa création en les compétences de spécialistes dans différents domaines de l’écologie et de l’aménagement du territoire.”

Source: RevenueBase Database · checked Sep 5, 2026
14Indirect evidenceVandoeuvre-lès-nancy, FranceHQ checked Sep 5, 202611-5035 contacts →

Indirect evidence

“Bureau d’études et de conseils en Environnement ENCEM valorise son savoir-faire dans de nombreux secteurs d’activité tels que l’extraction et la transformation des matériaux, le…”

Source: RevenueBase Database · checked Sep 5, 2026
15Indirect evidenceLe Portel, FranceHQ checked Sep 5, 202651-20033 contacts →

Indirect evidence

“COPALIS INDUSTRIE is a fishery company based out of 220 RUE DU PETIT PORT, LE PORTEL, France.”

Source: RevenueBase Database · checked Sep 5, 2026
16Partial evidenceParis, FranceHQ checked Sep 5, 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 5, 2026
17Indirect evidenceChamoux-sur-gelon, FranceHQ checked Sep 5, 202611-5027 contacts →

Indirect evidence

“KARUM est un bureau d’études spécialisé en environnement créé il y a 30 ans.”

Source: RevenueBase Database · checked Sep 5, 2026
18Indirect evidenceSainte-hélène-du-lac, FranceHQ checked Sep 5, 202611-5025 contacts →

Indirect evidence

“TEREO au service de ses clients.”

Source: RevenueBase Database · checked Sep 5, 2026
19Indirect evidenceQuimper, FranceHQ checked Sep 5, 202611-5023 contacts →

Indirect evidence

“INOVADIA est un bureau d’études indépendant spécialisé en conseils et études en environnement.”

Source: RevenueBase Database · checked Sep 5, 2026
20Indirect evidenceAuray, FranceHQ checked Sep 5, 202611-5022 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 5, 2026
21Partial evidenceSix Fours Les Plages, FranceHQ checked Sep 5, 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 5, 2026
22Indirect evidenceVerfeil, FranceHQ checked Sep 5, 20261-1019 contacts →

Indirect evidence

“Depuis plus de 15 ans, ECCEL Environnement se veut, sous l’impulsion de son fondateur, Hervé LIEBIG, une structure indépendante, dédiée à la prise en compte de l’Environnement…”

Source: RevenueBase Database · checked Sep 5, 2026
23Partial evidenceMont De Marsan, FranceHQ checked Sep 5, 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 5, 2026
24Partial evidenceMontfarville, FranceHQ checked Sep 5, 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 5, 2026
25Indirect evidenceAllonne, FranceHQ checked Sep 5, 202611-5018 contacts →

Indirect evidence

“COÉLYS est un bureau d'études techniques et de conseils aux industriels pour la protection de l'environnement, la lutte contre les pollutions, et le respect de la réglementation.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 253 marine resource consulting firms based in France

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Marine resource consulting firms based in France at a glance

As of Sep 5, 2026
14.4%Verified-email coverage
1.3%Mobile-number coverage
20.4Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · Paris
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
186
11-50
50
51-200
10
201-500
3
1,001-5,000
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 resource 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 resource 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 resource 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 resource 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, 740 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

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 resource 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 resource consulting firms are there based in France?

RevenueBase identified 253 marine resource 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 resource consulting firms?

Paris leads with 13 headquartered companies, followed by La Rochelle (9) and Brest (8).

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 740 verified decision-maker contacts tracked across these 253 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 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.