Company lists · Data refreshed September 2026
Top 25 Marine environmental consultancies based in France
RevenueBase identified 594 marine environmental consultancies headquartered in France as of September 2026 and tracks 10,063 professional contacts across them, including 2,815 with verified work emails. Paris is the largest hub.
This list covers marine environmental consultancies 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 14, 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.
The 25 largest marine environmental consultancies based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 517 contacts → | ||||
Indirect evidence “Fondée en 1993 par des passionnés de nature engagés, Biotope s’est imposée au fil des années comme précurseur et leader mondial de l’ingénierie environnementale et de la…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 286 contacts → | ||||
Indirect evidence “Entreprise spécialisée en génie environnemental, Brézillon agit depuis près de 30 ans pour préserver, restaurer et valoriser les terrains sur l’ensemble du territoire national.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 278 contacts → | ||||
Indirect evidence “Créé en 1991, reconnu comme l’un des meilleurs cabinets français spécialiste de la transformation écologique, EODD ingénieurs conseils apporte sa vision transversale et ses…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 229 contacts → | ||||
Indirect evidence “IRH Ingénieur Conseil est membre d'Antea Group.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 174 contacts → | ||||
Partial evidence “For over 35 years, Écosphère has been providing consulting and engineering services in the environmental field.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 131 contacts → | ||||
Indirect evidence “Synergis Environnement est un bureau d'études indépendant spécialisé dans l'ingénierie environnementale, agricole et réglementaire.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 123 contacts → | ||||
Indirect evidence “ARTIFEX, une société de SOCOTEC est un bureau d’ingénierie et de conseil en environnement, créé en janvier 1983 et basé à Albi dans le Tarn.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 105 contacts → | ||||
Indirect evidence “est un bureau d’études indépendant qui vous assiste et vous conseille dans toutes vos démarches relatives à l’environnement et au développement durable, notamment sur les plans…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 88 contacts → | ||||
Indirect evidence “Fondée en 1998, Naturalia Environnement s’impose aujourd’hui comme un acteur reconnu en matière d’expertises naturalistes et d’études réglementaires portant sur la biodiversité.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 81 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 80 contacts → | ||||
Indirect evidence “Bureau d’étude créé en 1988 et dirigé par Aymeric Minot, nous sommes 70 ingénieurs et techniciens aux profils variés spécialisés en environnement.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 73 contacts → | ||||
Partial evidence “TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 70 contacts → | ||||
Indirect evidence “ENVISOL est une entreprise spécialisée dans le conseil et l’ingénierie offrant des prestations dans le domaine des sites et sols pollués.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 64 contacts → | ||||
Indirect evidence “Calidris est un bureau d’études spécialisé dans le domaine de l’écologie.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 62 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 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 62 contacts → | ||||
Indirect evidence “Fort d’une expérience de plus de 25 ans, Kalies accompagne et conseille ses clients industriels, collectivités et promoteurs immobiliers dans leurs problématiques…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 54 contacts → | ||||
Partial evidence “ECOGEOS is a consulting firm that aims at providing scientific and technical assistance as well as advisory services in the field of environmental engineering (waste, soil and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 53 contacts → | ||||
Indirect evidence “ECO-MED est un bureau d'études, d'expertise et de conseil en environnement naturel spécifiques à l’aménagement du territoire et à la mise en valeur des milieux naturels.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 52 contacts → | ||||
Indirect evidence “ATER Environnement est un bureau d’études pluridisciplinaire, composé de 52 collaborateurs aux compétences complémentaires, experts dans les domaines des énergies renouvelables…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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 environmental consultancies. 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 environmental consultancies.
- Partial evidence
- Its own public description names part of marine environmental consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name marine environmental consultancies. 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 594 marine environmental consultancies based in France
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Marine environmental consultancies based in France at a glance
As of Sep 14, 2026Companies by employee count
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 594 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 environmental consultancies, 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 environmental consultancies”. 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 environmental consultancies), 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 environmental consultancies, 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, 2,815 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 14, 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 environmental consultancies by metro
- Marine environmental consultancies in Paris31
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 environmental consultancies, 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 environmental consultancies are there based in France?
RevenueBase identified 594 marine environmental consultancies 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?
Biotope, headquartered in Meze, tops this list with the largest team on record.
Which city has the most marine environmental consultancies?
Paris leads with 31 headquartered companies, followed by Marseille (19) and Brest (13).
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 2,815 verified decision-maker contacts tracked across these 594 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 14, 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.
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