Company lists · Data refreshed September 2026

Top 25 Sustainable development firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 1,369 companies tracked

RevenueBase identified 1,369 sustainable development firms headquartered in France as of September 2026 and tracks 17,114 professional contacts across them, including 6,975 with verified work emails. Paris is the largest hub.

This list covers sustainable development 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 22, 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 22, 2026 86% judged on-target in blind review

1,369Companies

17,114Contacts tracked

6,975Verified emails

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The 25 largest sustainable development firms based in France

Ranked by team size

Top 25 of 1,369 sustainable development firms based in France, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable development 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	Vulcain Engineering Group	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 22, 2026	5,001-10,000	1,496 contacts →
	Indirect evidence “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Source: RevenueBase Database · checked Sep 22, 2026
2	SCE Aménagement & Environnement	Strong evidence	Nantes Cedex 2, FranceHQ checked Sep 22, 2026	501-1,000	596 contacts →
	Strong evidence “SCE works closely for public and private actors on their sustainable territorial development projects.” Source: RevenueBase Database · checked Sep 22, 2026
3	Fondasol	Indirect evidence	Avignon, FranceHQ checked Sep 22, 2026	501-1,000	522 contacts →
	Indirect evidence “le Groupe Fondasol accompagne les projets de construction et d’aménagement du territoire sur l'ensemble de ses domaines d’expertises.” Source: RevenueBase Database · checked Sep 22, 2026
4	Ginger Sofreco	Partial evidence	Clichy, FranceHQ checked Sep 22, 2026	51-200	472 contacts →
	Partial evidence “Ginger SOFRECO is an engineering and consulting firm dedicated to international development cooperation and the implementation of industrial projects.” Source: RevenueBase Database · checked Sep 22, 2026
5	Greenflex	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	501-1,000	390 contacts →
	Indirect evidence “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Source: RevenueBase Database · checked Sep 22, 2026
6	Eodd Ingénieurs Conseils	Indirect evidence	Villeurbanne, FranceHQ checked Sep 22, 2026	201-500	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 22, 2026
7	Seureca	Indirect evidence	Aubervilliers, FranceHQ checked Sep 22, 2026	201-500	250 contacts →
	Indirect evidence “Seureca is the Consulting Engineering and Strategic and Operational Assistance division of the Veolia Group.” Source: RevenueBase Database · checked Sep 22, 2026
8	ALGOÉ	Indirect evidence	Ecully, FranceHQ checked Sep 22, 2026	201-500	222 contacts →
	Indirect evidence “Algoé est une société de conseil et d'accompagnement en management, spécialisée en Projets, Organisation, Développement et Ressources Humaines.” Source: RevenueBase Database · checked Sep 22, 2026
9	Nepsen	Indirect evidence	Vincennes, FranceHQ checked Sep 22, 2026	51-200	220 contacts →
	Indirect evidence “NEPSEN est un bureau d'études indépendant, spécialisé dans les métiers de la transition énergétique & écologique depuis 40 ans.” Source: RevenueBase Database · checked Sep 22, 2026
10	Écosphère	Indirect evidence	St.-maurice, FranceHQ checked Sep 22, 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 22, 2026
11	GERES	Indirect evidence	Aubagne, FranceHQ checked Sep 22, 2026	51-200	167 contacts →
	Indirect evidence “GERES - Group for the Environment, Renewable Energy and Solidarity - is a French non-profit NGO created in 1976.” Source: RevenueBase Database · checked Sep 22, 2026
12	Espelia	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	163 contacts →
	Indirect evidence “For nearly 30 years, Espelia International has been advising public decision-makers in emerging and developing countries, as well as funders, on the design and implementation of…” Source: RevenueBase Database · checked Sep 22, 2026
13	R3	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	155 contacts →
	Indirect evidence “Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.” Source: RevenueBase Database · checked Sep 22, 2026
14	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 22, 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 22, 2026
15	I Care	Strong evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	139 contacts →
	Strong evidence “MULTI-EXPERTISE FOR IMPACTFUL SOLUTIONS] I Care by BearingPoint is a leader in impact-driven transformation and BearingPoint's center of expertise for sustainable development.” Source: RevenueBase Database · checked Sep 22, 2026
16	Synergis Environnement	Indirect evidence	Beaucouzé, FranceHQ checked Sep 22, 2026	51-200	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 22, 2026
17	AETS	Partial evidence	Lons, FranceHQ checked Sep 22, 2026	11-50	128 contacts →
	Partial evidence “AETS is an international and multidisciplinary consulting company specialised in development cooperation and the implementation of public policies.” Source: RevenueBase Database · checked Sep 22, 2026
18	Soler IDE	Indirect evidence	Massy, FranceHQ checked Sep 22, 2026	51-200	115 contacts →
	Indirect evidence “SOLER IDE est l’un des leaders français du Conseil en Environnement.” Source: RevenueBase Database · checked Sep 22, 2026
19	Elements	Indirect evidence	Montpellier, FranceHQ checked Sep 22, 2026	51-200	108 contacts →
	Indirect evidence “Elements produit de l'électricité verte à partir de centrales photovoltaïques, éoliennes et hydro avec pour ambition de synchroniser la consommation des territoires avec leur mix…” Source: RevenueBase Database · checked Sep 22, 2026
20	OTIMO	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 22, 2026	51-200	106 contacts →
	Indirect evidence “otimo est une société de conseil en ingénierie spécialisée dans les secteurs de l'Énergie, l'Environnement et les Infrastructures.” Source: RevenueBase Database · checked Sep 22, 2026
21	Tauw France	Indirect evidence	Dijon, FranceHQ checked Sep 22, 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 22, 2026
22	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	105 contacts →
	Indirect evidence “Aujourd’hui ARP Astrance regroupe plus de 100 collaborateurs et intervient en tant que conseil, AMO, project manager, BE environnement, écologue sur les projets en développement…” Source: RevenueBase Database · checked Sep 22, 2026
23	Groupe Serl	Indirect evidence	Lyon, FranceHQ checked Sep 22, 2026	51-200	98 contacts →
	Indirect evidence “Le Groupe SERL a pour raison d’être d’aménager et construire un cadre de vie de qualité avec les habitants, les usagers et les parties prenantes des projets pour soutenir les…” Source: RevenueBase Database · checked Sep 22, 2026
24	LGI Sustainable Innovation	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	93 contacts →
	Partial evidence “LGI is a European sustainable innovation consultancy delivering Innovation Strategy, Financing, Management & Communication services for public & private innovators.” Source: RevenueBase Database · checked Sep 22, 2026
25	Enerlis	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 22, 2026	51-200	90 contacts →
	Indirect evidence “ENERLIS, opérateur global de la transition énergétique, conçoit, réalise et finance vos projets de rénovation énergétique en s'engageant sur le résultat.” Source: RevenueBase Database · checked Sep 22, 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: sustainable development 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 sustainable development firms.
Partial evidence: Its own public description names part of sustainable development firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable development 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 1,369 sustainable development firms based in France

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Sustainable development firms based in France at a glance

As of Sep 22, 2026

40.8%Verified-email coverage

12.5Average contacts per company

1-10Median size (employees)

19.7%Largest-city concentration · Paris

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

1,020

11-50

263

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,369 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 sustainable development 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 “sustainable development 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 sustainable development 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 sustainable development 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, 6,975 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 22, 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.

Sustainable development firms by metro

Sustainable development firms in Paris270
Sustainable development firms in Lyon57
Sustainable development firms in Toulouse26

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 sustainable development 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 sustainable development firms are there based in France?

RevenueBase identified 1,369 sustainable development 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?

Vulcain Engineering Group, headquartered in Neuilly-Sur-Seine, tops this list with the largest team on record.

Which city has the most sustainable development firms?

Paris leads with 270 headquartered companies, followed by Lyon (57) and Toulouse (26).

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 6,975 verified decision-maker contacts tracked across these 1,369 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 22, 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.