Company lists · Data refreshed September 2026

Top 25 Climate tech companies based in France

Name: Climate tech companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 109 companies tracked

RevenueBase identified 109 climate tech companies headquartered in France as of September 2026 and tracks 10,490 professional contacts across them, including 5,416 with verified work emails. Paris is the largest hub.

This list covers climate tech companies 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

109Companies

10,490Contacts tracked

5,416Verified emails

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The 25 largest climate tech companies based in France

Ranked by team size

Top 25 of 109 climate tech companies 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 climate tech companies: 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	Dalkia	Partial evidence	Saint-andré-lez-lille, FranceHQ checked Sep 19, 2026	10001+	8,427 contacts →
	Partial evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 19, 2026
2	Groupe Coriance	Indirect evidence	Noisy-le-grand, FranceHQ checked Sep 19, 2026	501-1,000	452 contacts →
	Indirect evidence “Pour une énergie propre et mieux utilisée Notre mission : fournir des solutions énergétiques performantes et économiques, tout en minimisant l'impact environnemental.” Source: RevenueBase Database · checked Sep 19, 2026
3	CRAM	Indirect evidence	Le Havre, FranceHQ checked Sep 19, 2026	501-1,000	448 contacts →
	Indirect evidence “Nous sommes des femmes et des hommes engagés, qui chaque matin se lèvent avec une mission : être des acteurs clés de la transition énergétique.” Source: RevenueBase Database · checked Sep 19, 2026
4	ECO Co2	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	109 contacts →
	Indirect evidence “Eco CO2 se positionne sur le marché de l'environnement et du développement durable.” Source: RevenueBase Database · checked Sep 19, 2026
5	Marble	Strong evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	71 contacts →
	Strong evidence “Marble partners with scientists, engineers and operators to create hard tech companies for the New Climate Era.” Source: RevenueBase Database · checked Sep 19, 2026
6	Voltaïca	Indirect evidence	Bastia, FranceHQ checked Sep 19, 2026	51-200	70 contacts →
	Indirect evidence “Persuadée de la nécessité d’utiliser les énergies renouvelables pour limiter l’impact de l’humanité sur la planète, VOLTAÏCA veut faire le pari d’un avenir zéro émission carbone!” Source: RevenueBase Database · checked Sep 19, 2026
7	Co2 AI	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	63 contacts →
	Indirect evidence “CO2 AI helps large and complex organizations measure their environmental impact, identify credible levers, and decarbonize at scale, leveraging the power of AI.” Source: RevenueBase Database · checked Sep 19, 2026
8	Efficacity	Indirect evidence	Champs-sur-marne, FranceHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “Depuis sa création en 2014, la raison d'être d'Efficacity est d’apporter aux acteurs de terrain de nouveaux outils, méthodes et solutions opérationnelles qui leur permettront…” Source: RevenueBase Database · checked Sep 19, 2026
9	Sun'agri	Strong evidence	Lyon, FranceHQ checked Sep 19, 2026	11-50	58 contacts →
	Strong evidence “Sun'Agri est une climate tech pionnière qui soigne la terre et ceux qui la cultivent.” Source: RevenueBase Database · checked Sep 19, 2026
10	Ecogreenenergy	Indirect evidence	Strasbourg, FranceHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence “Et si l’énergie que vous perdez aujourd’hui devenait votre plus grand levier de compétitivité?” Source: RevenueBase Database · checked Sep 19, 2026
11	Syroco	Strong evidence	Marseille, FranceHQ checked Sep 19, 2026	11-50	52 contacts →
	Strong evidence “Syroco is a Climate Tech startup that supports the energy transition of maritime transportation.” Source: RevenueBase Database · checked Sep 19, 2026
12	NAMR	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	40 contacts →
	Partial evidence “Notre mission Permettre la transformation énergétique et l’adaptation climatique des territoires, des actifs et des systèmes énergétiques en France et à l’international grâce à…” Source: RevenueBase Database · checked Sep 19, 2026
13	Canopy Energies	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “CANOPY ENERGIES pledges to fight global warming, focusing on producing clean energy and reducing carbon emissions.” Source: RevenueBase Database · checked Sep 19, 2026
14	Caeli Energie	Indirect evidence	Grenoble, FranceHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Caeli Energie is a DeepTech startup designing and manufacturing new generation air conditioners: high energy efficiency and low carbon footprint.” Source: RevenueBase Database · checked Sep 19, 2026
15	Ageden	Indirect evidence	Saint-martin-d’hères, FranceHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “L’AGEDEN (Association pour une GEstion Durable de l’ENergie) is a non-profit organization, founded in 1977.” Source: RevenueBase Database · checked Sep 19, 2026
16	Eco-Tech Ceram	Indirect evidence	Balma, FranceHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “More than 50% of energy is consumed in the form of heat and more than a third of the energy consumed is lost as heat (equivalent to 2450 Mt of CO2 per year).” Source: RevenueBase Database · checked Sep 19, 2026
17	Proclim Officiel	Partial evidence	Villepinte, FranceHQ checked Sep 19, 2026	51-200	21 contacts →
	Partial evidence “Proclim est une entreprise spécialisée dans le domaine du génie climatique.” Source: RevenueBase Database · checked Sep 19, 2026
18	EVIAS	Strong evidence	Rosières-près-troyes, FranceHQ checked Sep 19, 2026	11-50	16 contacts →
	Strong evidence “EVIAS is a pioneering climate tech company providing cities and transport-heavy companies conductive dynamic fast charging solutions that reduce their transport-related carbon…” Source: RevenueBase Database · checked Sep 19, 2026
19	Hevatech	Indirect evidence	Saint-paul-trois-châteaux, FranceHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “HEVATECH est une start-up technologique focalisée sur la valorisation des rejets thermiques industriels.” Source: RevenueBase Database · checked Sep 19, 2026
20	Entent	Indirect evidence	Aix-en-provence, FranceHQ checked Sep 19, 2026	1-10	15 contacts →
	Indirect evidence “ENTENT propose aux entreprises de décarboner leurs activités.” Source: RevenueBase Database · checked Sep 19, 2026
21	ZENON	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	14 contacts →
	Partial evidence “Zenon Research est un think tank dédié aux innovations et technologies pour le climat et un monde bas carbone.” Source: RevenueBase Database · checked Sep 19, 2026
22	Packgy	Indirect evidence	Chartres-de-bretagne, FranceHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “PackGy accelerates industrial decarbonisation and the energy transition.” Source: RevenueBase Database · checked Sep 19, 2026
23	Effilios	Indirect evidence	Poitiers, FranceHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “EFFILIOS was founded in by its founder, Franck Jusiak.” Source: RevenueBase Database · checked Sep 19, 2026
24	Heliosand	Indirect evidence	Lyon, FranceHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Pionniers des solutions économiques et décarbonées.” Source: RevenueBase Database · checked Sep 19, 2026
25	Releaf Carbon	Indirect evidence	Lille & Paris, FranceHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “At Releaf Carbon, we help companies of all sizes work towards a low-carbon transition for a sustainable future.” 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: climate tech companies. 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 climate tech companies.
Partial evidence: Its own public description names part of climate tech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate tech companies. 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 109 climate tech companies based in France

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Climate tech companies based in France at a glance

As of Sep 19, 2026

51.6%Verified-email coverage

96.2Average contacts per company

1-10Median size (employees)

32.1%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

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 109 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 climate tech companies, 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 “climate tech companies”. 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 climate tech companies), 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 climate tech companies, 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, 5,416 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.

Climate tech companies by metro

Climate tech companies in Paris35

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 climate tech companies, 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 climate tech companies are there based in France?

RevenueBase identified 109 climate tech companies 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?

Dalkia, headquartered in Saint-Andre-Lez-Lille, tops this list with the largest team on record.

Which city has the most climate tech companies?

Paris leads with 35 headquartered companies, followed by Lyon (6) and Nantes (4).

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 5,416 verified decision-maker contacts tracked across these 109 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.