Company lists · Data refreshed September 2026

Top 25 Ecological assessment firms based in France

Name: Ecological assessment firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 313 companies tracked

RevenueBase identified 313 ecological assessment firms headquartered in France as of September 2026 and tracks 4,013 professional contacts across them, including 1,649 with verified work emails. Paris is the largest hub.

This list covers ecological assessment 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 19, 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 19, 2026 86% judged on-target in blind review

313Companies

4,013Contacts tracked

1,649Verified emails

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The 25 largest ecological assessment firms based in France

Ranked by team size

Top 25 of 313 ecological assessment firms based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to ecological assessment 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	Biotope	Indirect evidence	Mèze, FranceHQ checked Sep 19, 2026	201-500	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 19, 2026
2	Écosphère	Indirect evidence	St.-maurice, FranceHQ checked Sep 19, 2026	201-500	174 contacts →
	Indirect evidence “For over 35 years, Écosphère has been providing consulting and engineering services in the environmental field.” Source: RevenueBase Database · checked Sep 19, 2026
3	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 19, 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 19, 2026
4	Artifex	Indirect evidence	Albi, FranceHQ checked Sep 19, 2026	51-200	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 19, 2026
5	Soler IDE	Indirect evidence	Massy, FranceHQ checked Sep 19, 2026	51-200	115 contacts →
	Indirect evidence “SOLER IDE est l’un des leaders français du Conseil en Environnement.” Source: RevenueBase Database · checked Sep 19, 2026
6	Tauw France	Indirect evidence	Dijon, FranceHQ checked Sep 19, 2026	51-200	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 19, 2026
7	Naturalia Environnement	Indirect evidence	Avignon, FranceHQ checked Sep 19, 2026	51-200	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 19, 2026
8	TEREA	Indirect evidence	Marseille, FranceHQ checked Sep 19, 2026	11-50	73 contacts →
	Indirect evidence “TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.” Source: RevenueBase Database · checked Sep 19, 2026
9	Calidris	Indirect evidence	La Montagne, FranceHQ checked Sep 19, 2026	51-200	64 contacts →
	Indirect evidence “Calidris est un bureau d’études spécialisé dans le domaine de l’écologie.” Source: RevenueBase Database · checked Sep 19, 2026
10	Altifaune	Indirect evidence	Pézenas, FranceHQ checked Sep 19, 2026	11-50	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 19, 2026
11	Eco-Med By Eodd	Indirect evidence	Marseille, FranceHQ checked Sep 19, 2026	11-50	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 19, 2026
12	Aquascop Sarl	Indirect evidence	Beaucouzé, FranceHQ checked Sep 19, 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 19, 2026
13	Ater Environnement	Indirect evidence	Grandfresnoy, FranceHQ checked Sep 19, 2026	11-50	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 19, 2026
14	Envolis	Indirect evidence	Gujan-mestras, FranceHQ checked Sep 19, 2026	11-50	52 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 19, 2026
15	O2m	Indirect evidence	Rennes, FranceHQ checked Sep 19, 2026	11-50	46 contacts →
	Indirect evidence “Créé en 2008, O2m est un cabinet d'études indépendant spécialisé dans l’accélération des projets de transition écologique et de performance durable des entreprises et…” Source: RevenueBase Database · checked Sep 19, 2026
16	Dervenn	Indirect evidence	Betton, FranceHQ checked Sep 19, 2026	11-50	44 contacts →
	Indirect evidence “Dervenn est une communauté d’entreprises fondée en 2002, pionnière dans le domaine du génie écologique et de la préservation de la biodiversité.” Source: RevenueBase Database · checked Sep 19, 2026
17	Evinerude	Indirect evidence	Vaulx-milieu, FranceHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “EVINERUDE est un bureau d'étude en environnement réparti en 4 pôles d'activité : Etude réglementaire, Gestion du milieu, Qualité de l'air et Biodiversité” Source: RevenueBase Database · checked Sep 19, 2026
18	Thema Environnement	Indirect evidence	Joue Les Tours, FranceHQ checked Sep 19, 2026	11-50	40 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 19, 2026
19	Aepe-Gingko	Indirect evidence	La Ménitré, FranceHQ checked Sep 19, 2026	11-50	36 contacts →
	Indirect evidence “AEPE Gingko est un bureau d’étude technique spécialisé dans l’accompagnement et le conseil environnemental et paysager.” Source: RevenueBase Database · checked Sep 19, 2026
20	BSE Building Systems Energies	Indirect evidence	Joué-lès-tours, FranceHQ checked Sep 19, 2026	11-50	36 contacts →
	Indirect evidence “Créé en 2008 au sein du Groupe Hervé, BSE est un bureau d'études spécialisé dans la performance énergétique et environnementale des bâtiments.” Source: RevenueBase Database · checked Sep 19, 2026
21	Encem Conseil	Indirect evidence	Vandoeuvre-lès-nancy, FranceHQ checked Sep 19, 2026	11-50	35 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 19, 2026
22	Cabinet Ectare	Indirect evidence	Balma, FranceHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “ECTARE, ́ Etude et Conseil Technique pour l’Aménagement, les Ressources & l’Environnement Depuis plus de 35 ans, nous contribuons à la prise en compte des différentes composantes…” Source: RevenueBase Database · checked Sep 19, 2026
23	Karum Actions Nature	Indirect evidence	Chamoux-sur-gelon, FranceHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “KARUM est un bureau d’études spécialisé en environnement créé il y a 30 ans.” Source: RevenueBase Database · checked Sep 19, 2026
24	AIA Environnement	Indirect evidence	Nantes, FranceHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “INSPIRER NATURELLEMENT LE PROJET!” Source: RevenueBase Database · checked Sep 19, 2026
25	TEREO	Indirect evidence	Sainte-hélène-du-lac, FranceHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “TEREO au service de ses clients.” Source: RevenueBase Database · checked Sep 19, 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: ecological assessment 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 ecological assessment firms.
Partial evidence: Its own public description names part of ecological assessment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological assessment 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 313 ecological assessment firms based in France

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Ecological assessment firms based in France at a glance

As of Sep 19, 2026

41.1%Verified-email coverage

12.8Average contacts per company

1-10Median size (employees)

6.4%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

214

11-50

51-200

201-500

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 313 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 ecological assessment 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 “ecological assessment 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 ecological assessment 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 ecological assessment 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, 1,649 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 19, 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 ecological assessment 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 ecological assessment firms are there based in France?

RevenueBase identified 313 ecological assessment 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?

Biotope, headquartered in Meze, tops this list with the largest team on record.

Which city has the most ecological assessment firms?

Paris leads with 20 headquartered companies, followed by Lyon (10) and Montpellier (5).

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 1,649 verified decision-maker contacts tracked across these 313 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 19, 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.