Company lists · Data refreshed September 2026
Top 25 Cleantech startups based in France
RevenueBase identified 493 cleantech startups headquartered in France as of September 2026 and tracks 63,763 professional contacts across them, including 33,232 with verified work emails. Paris is the largest hub.
This list covers cleantech startups 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.
The 25 largest cleantech startups based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 44,842 contacts → | ||||
Indirect evidence “Our raison d'être is to build a net zero energy future with electricity and innovative solutions and services, to help save the planet and drive wellbeing and economic development.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 8,427 contacts → | ||||
Indirect evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,436 contacts → | ||||
Indirect evidence “Voltalia is an international player in renewable energies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 525 contacts → | ||||
Indirect evidence “Akuo est spécialisé dans la mise en œuvre d’unités de production d’électricité à partir de ressources renouvelables, en particulier le solaire, l'éolien et le stockage.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 454 contacts → | ||||
Indirect evidence “As a key player in the energy transition, we are the first European institute entirely dedicated to new energy technologies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 399 contacts → | ||||
Indirect evidence “Valeco est un acteur majeur des énergies renouvelables depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 336 contacts → | ||||
Indirect evidence “In 17 years, GreenYellow has become a major player in the energy transition in France and abroad and a true partner of companies and communities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 264 contacts → | ||||
Indirect evidence “Fondé en 2008, au cœur de la région PACA, Tenergie est un producteur indépendant d’énergies renouvelables : nos 500 centrales solaires et éoliennes ont produit plus de 250 GWh en…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 174 contacts → | ||||
Indirect evidence “Entech develops solar production, storage, and electricity conversion solutions controlled by smart software systems that promote the increasing and profitable integration of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 164 contacts → | ||||
Indirect evidence “Nous croyons en l’énergie solaire photovoltaïque comme incontournable source d’énergie durable.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 134 contacts → | ||||
Indirect evidence “TOROW est une société d'innovation experte sur les sujets de production, transport, stockage et consommation d'électricité, motivée par le développement durable et capable…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 131 contacts → | ||||
Indirect evidence “Première entreprise à mission des énergies, nous œuvrons pour une énergie verte intelligente et utile partout.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 128 contacts → | ||||
Indirect evidence “Acteur indépendant des énergies renouvelables depuis plus de 20 ans, nous développons des parcs éoliens, des centrales photovoltaïques ainsi que des solutions de stockage…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 128 contacts → | ||||
Indirect evidence “SOLVEO Energies is a French independent producer of renewable energies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 121 contacts → | ||||
Indirect evidence “Ensemble, passons à l’action!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 116 contacts → | ||||
Indirect evidence “Depuis plus de 30 ans, TEKSIAL œuvre au profit d’un monde durable en cohérence avec les nouveaux modes de consommation d’énergie.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 109 contacts → | ||||
Indirect evidence “En 2019, le Groupe EDF veut rendre la vie des Français plus simple et lance IZI by EDF, sa plateforme pour accompagner ses clients vers la transition énergétique.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 109 contacts → | ||||
Indirect evidence “Eco CO2 se positionne sur le marché de l'environnement et du développement durable.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 109 contacts → | ||||
Indirect evidence “L’INES est un leader mondial de la R&D, de l'expertise et la formation pour les technologies solaires avancées, leur intégration dans les systèmes et la gestion intelligente de…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 101 contacts → | ||||
Indirect evidence “Le Groupe Vergnet, “créateur vertueux d’indépendance énergétique depuis 1989”, n’a de cesse depuis son origine de permettre à ses clients de maitriser leur production d’énergie…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 89 contacts → | ||||
Indirect evidence “ROZO - Votre partenaire pour une décarbonation réussie!” Source: RevenueBase Database · checked Sep 19, 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: cleantech startups. 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 cleantech startups.
- Partial evidence
- Its own public description names part of cleantech startups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cleantech startups. 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 493 cleantech startups based in France
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Cleantech startups based in France at a glance
As of Sep 19, 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 493 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 cleantech startups, 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 “cleantech startups”. 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 cleantech startups), 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 cleantech startups, 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, 33,232 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.
Cleantech startups by metro
- Cleantech startups in Paris91
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 cleantech startups, 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 cleantech startups are there based in France?
RevenueBase identified 493 cleantech startups 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?
EDF, headquartered in Paris, tops this list with the largest team on record.
Which city has the most cleantech startups?
Paris leads with 91 headquartered companies, followed by Lyon (19) and Toulouse (14).
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 33,232 verified decision-maker contacts tracked across these 493 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.
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