Company lists · Data refreshed September 2026

Top 25 Marine resource consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 253 companies tracked

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, how directly it supports the match, 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 SmartSearch, 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 Match evidence 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. Evidence rates how directly each company's own description names marine resource consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	GeoceanPartial evidence	Cassis, FranceHQ checked Sep 5, 2026	n/a	216
	“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Source: company website · checked Sep 5, 2026
2	AventaPartial evidence	Paris, FranceHQ checked Sep 5, 2026	201-500	176
	“Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.” Source: company website · checked Sep 5, 2026
3	Setec Énergie EnvironnementIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	143
	“Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Source: company website · checked Sep 5, 2026
4	TSMPartial evidence	Rouen, FranceHQ checked Sep 5, 2026	201-500	109
	“TSM owns and operates 30 vessels and offers marine services to the offshore renewables industry, harbour and sea towage.” Source: company website · checked Sep 5, 2026
5	CreoceanIndirect evidence	La Rochelle, FranceHQ checked Sep 5, 2026	51-200	90
	“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: company website · checked Sep 5, 2026
6	TEREAStrong evidence	Marseille, FranceHQ checked Sep 5, 2026	11-50	73
	“TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.” Source: company website · checked Sep 5, 2026
7	AltifauneIndirect evidence	Pézenas, FranceHQ checked Sep 5, 2026	11-50	62
	“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: company website · checked Sep 5, 2026
8	Société Atlantique DE Mariculture SatmarIndirect evidence	Gatteville-le-phare, FranceHQ checked Sep 5, 2026	51-200	61
	“Bienvenue à la SATMAR!” Source: company website · checked Sep 5, 2026
9	Aquascop SarlIndirect evidence	Beaucouzé, FranceHQ checked Sep 5, 2026	51-200	53
	“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: company website · checked Sep 5, 2026
10	EnvolisIndirect evidence	Gujan-mestras, FranceHQ checked Sep 5, 2026	11-50	52
	“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: company website · checked Sep 5, 2026
11	Hydroconsult SarlStrong evidence	Kervignac, FranceHQ checked Sep 5, 2026	11-50	49
	“Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.” Source: company website · checked Sep 5, 2026
12	CDESIndirect evidence	Luzancy, FranceHQ checked Sep 5, 2026	51-200	42
	“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: company website · checked Sep 5, 2026
13	Thema EnvironnementIndirect evidence	Joue Les Tours, FranceHQ checked Sep 5, 2026	11-50	40
	“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: company website · checked Sep 5, 2026
14	Encem ConseilIndirect evidence	Vandoeuvre-lès-nancy, FranceHQ checked Sep 5, 2026	11-50	35
	“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: company website · checked Sep 5, 2026
15	Copalis IndustrieIndirect evidence	Le Portel, FranceHQ checked Sep 5, 2026	51-200	33
	“COPALIS INDUSTRIE is a fishery company based out of 220 RUE DU PETIT PORT, LE PORTEL, France.” Source: company website · checked Sep 5, 2026
16	CofrepechePartial evidence	Paris, FranceHQ checked Sep 5, 2026	n/a	31
	“COFREPECHE, société anonyme à conseil d'administration, a été créée en 1980 par des professionnels du monde maritime.” Source: company website · checked Sep 5, 2026
17	Karum Actions NatureIndirect evidence	Chamoux-sur-gelon, FranceHQ checked Sep 5, 2026	11-50	27
	“KARUM est un bureau d’études spécialisé en environnement créé il y a 30 ans.” Source: company website · checked Sep 5, 2026
18	TEREOIndirect evidence	Sainte-hélène-du-lac, FranceHQ checked Sep 5, 2026	11-50	25
	“TEREO au service de ses clients.” Source: company website · checked Sep 5, 2026
19	InovadiaIndirect evidence	Quimper, FranceHQ checked Sep 5, 2026	11-50	23
	“INOVADIA est un bureau d’études indépendant spécialisé en conseils et études en environnement.” Source: company website · checked Sep 5, 2026
20	TBM EnvironnementIndirect evidence	Auray, FranceHQ checked Sep 5, 2026	11-50	22
	Source: company website · checked Sep 5, 2026
21	D2m EngineeringPartial evidence	Six Fours Les Plages, FranceHQ checked Sep 5, 2026	11-50	19
	“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: company website · checked Sep 5, 2026
22	Eccel EnvironnementIndirect evidence	Verfeil, FranceHQ checked Sep 5, 2026	1-10	19
	“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: company website · checked Sep 5, 2026
23	SeaneoPartial evidence	Mont De Marsan, FranceHQ checked Sep 5, 2026	11-50	19
	“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: company website · checked Sep 5, 2026
24	CERESPartial evidence	Montfarville, FranceHQ checked Sep 5, 2026	1-10	19
	“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: company website · checked Sep 5, 2026
25	CoelysIndirect evidence	Allonne, FranceHQ checked Sep 5, 2026	11-50	18
	“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: company website · 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

1-10Median size (employees)

ParisLargest hub · 13 HQs

65Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

186

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

697

31–60

61–90

90–180

180+

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 evidence 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 SmartSearch, 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.
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 an evidence 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

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 SmartSearch, 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.