Company lists · Data refreshed September 2026

Top 25 Geothermal energy installation companies based in France

Name: Geothermal energy installation companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 792 companies tracked

RevenueBase identified 792 geothermal energy installation companies headquartered in France as of September 2026 and tracks 4,169 professional contacts across them, including 1,078 with verified work emails. Paris is the largest hub.

This list covers geothermal energy installation 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 15, 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 15, 2026 86% judged on-target in blind review

792Companies

4,169Contacts tracked

1,078Verified emails

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The 25 largest geothermal energy installation companies based in France

Ranked by team size

Top 25 of 792 geothermal energy installation companies based in France, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal energy installation 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	Groupe Coriance	Indirect evidence	Noisy-le-grand, FranceHQ checked Sep 15, 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 15, 2026
2	Vitaclim	Indirect evidence	Montpellier, FranceHQ checked Sep 15, 2026	201-500	132 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
3	Fouchard L Fayat Énergie Services	Partial evidence	Coutances, FranceHQ checked Sep 15, 2026	201-500	106 contacts →
	Partial evidence “Fouchard conçoit et met en place tous types d’installations de génie climatique pour les industriels, les professionnels comme les particuliers.” Source: RevenueBase Database · checked Sep 15, 2026
4	Bobion & Joanin Groupe Bily	Indirect evidence	Lons, FranceHQ checked Sep 15, 2026	201-500	89 contacts →
	Indirect evidence “Fondée en 1983 par Patrice Bobion (artisan électricien) et Jean-Pierre Joanin (artisan plombier) l’entreprise Bobion & Joanin est devenue en près de 40 ans un acteur majeur du…” Source: RevenueBase Database · checked Sep 15, 2026
5	Celsius Energy	Partial evidence	Clamart, FranceHQ checked Sep 15, 2026	51-200	79 contacts →
	Partial evidence “The Earth can accumulate summer heat and reuse it in the winter, so energy can be stored from season to season.” Source: RevenueBase Database · checked Sep 15, 2026
6	Cegeclim Energies	Partial evidence	Anglet, FranceHQ checked Sep 15, 2026	11-50	51 contacts →
	Partial evidence “CEGECLIM ENERGIES est le Concessionnaire agréé HITACHI Cooling & Heating de BOSCH Home Confort Group sur la Nouvelle Aquitaine.” Source: RevenueBase Database · checked Sep 15, 2026
7	CFG Geothermal	Indirect evidence	Orleans, FranceHQ checked Sep 15, 2026	11-50	46 contacts →
	Indirect evidence “CFG Services est une société de services et d’ingénierie, filiale à 100% du BRGM, spécialisée en géothermie qui dès le début des années 80 a été pionnière dans le développement…” Source: RevenueBase Database · checked Sep 15, 2026
8	AXYS	Indirect evidence	Courtabœuf, FranceHQ checked Sep 15, 2026	11-50	41 contacts →
	Indirect evidence “L’équipe AXYS, forte de son expérience dans le domaine, met en application depuis plus de 25 ans, l’ensemble des nouvelles technologies applicables aux équipements techniques des…” Source: RevenueBase Database · checked Sep 15, 2026
9	K2 Energies	Partial evidence	Le Bouscat, FranceHQ checked Sep 15, 2026	11-50	35 contacts →
	Partial evidence “Based in Bordeaux, we partner with architects, construction professionals and home owners to define and deliver energy efficient HVAC solutions.” Source: RevenueBase Database · checked Sep 15, 2026
10	Enerconfort	Partial evidence	Artigues-près-bordeaux, FranceHQ checked Sep 15, 2026	11-50	33 contacts →
	Partial evidence “La société Enerconfort est votre expert dans le domaine de l’énergie et particulièrement dans l’éco-rénovation de l’habitat.” Source: RevenueBase Database · checked Sep 15, 2026
11	Osmose	Indirect evidence	Roquefort Les Pins, FranceHQ checked Sep 15, 2026	11-50	33 contacts →
	Indirect evidence “Leader du secteur du CVC et de l'efficacité énergétique, Osmose fournit des solutions innovantes et clés en main aux industriels.” Source: RevenueBase Database · checked Sep 15, 2026
12	Froid Palombi	Indirect evidence	Cavaillon, FranceHQ checked Sep 15, 2026	11-50	30 contacts →
	Indirect evidence “Depuis 40 ans nous mettons notre passion et nos compétences au service des professionnels et des particuliers, pour proposer des solutions de climatisation et de chauffage…” Source: RevenueBase Database · checked Sep 15, 2026
13	Cisepz	Indirect evidence	Grenoble, FranceHQ checked Sep 15, 2026	51-200	30 contacts →
	Indirect evidence “Acteur de pointe du génie climatique dans notre région depuis 1938, le groupe CISEPZ dispose d’une organisation pour entreprises et particuliers lui permettant d’étudier, de…” Source: RevenueBase Database · checked Sep 15, 2026
14	IHE Énergies	Indirect evidence	Schweighouse-sur-moder, FranceHQ checked Sep 15, 2026	11-50	30 contacts →
	Indirect evidence “IHE Énergies \| Votre partenaire en transition énergétique et économies d'énergie dans le Grand Est et en Allemagne.” Source: RevenueBase Database · checked Sep 15, 2026
15	A'climatis	Indirect evidence	Vendargues, FranceHQ checked Sep 15, 2026	11-50	29 contacts →
	Indirect evidence “Depuis plus de 15 ans, A'Climatis allie prix compétitifs et produits de grande qualité pour vous offrir une gamme hautement sélective.” Source: RevenueBase Database · checked Sep 15, 2026
16	Axenergie	Partial evidence	Paris, FranceHQ checked Sep 15, 2026	1-10	27 contacts →
	Partial evidence “Axenergie installation et entretien de votre chauffage Pour votre tranquillité et votre sécurité faites confiance aux entreprises qualifiées du réseau Axenergie, dont la vocation…” Source: RevenueBase Database · checked Sep 15, 2026
17	ANÉO	Indirect evidence	Baillargues, FranceHQ checked Sep 15, 2026	51-200	26 contacts →
	Indirect evidence “À l’origine, nous, Philippe Gschwind et Nicolas Besson, étions deux salariés du secteur énergétique.” Source: RevenueBase Database · checked Sep 15, 2026
18	Lemasson	Indirect evidence	Agneaux, FranceHQ checked Sep 15, 2026	11-50	23 contacts →
	Indirect evidence “L’entreprise Lemasson créée en 1975, se situant à Agneaux dans la Manche dans la région de Normandie, est concepteur et fabricant de pompes à chaleur géothermiques.” Source: RevenueBase Database · checked Sep 15, 2026
19	Avenna	Indirect evidence	Nancy, FranceHQ checked Sep 15, 2026	11-50	23 contacts →
	Indirect evidence “Avenna rend les bâtiments plus performants en fournissant des services essentiels qui améliorent leur efficacité énergétique, renforcent leur fiabilité et optimisent le confort…” Source: RevenueBase Database · checked Sep 15, 2026
20	Oriol Chauffage, Climatisation, Plomberie Saint-Étienne France	Indirect evidence	Saint-etienne, FranceHQ checked Sep 15, 2026	51-200	22 contacts →
	Indirect evidence “Créée en 1943 et riche d’une longue expérience, l’entreprise Oriol basée à Saint-Etienne (Loire) est fière de vous présenter ses services à travers ce site Internet.” Source: RevenueBase Database · checked Sep 15, 2026
21	Andreu Genie Climatique	Indirect evidence	Bailly Romainvilliers, FranceHQ checked Sep 15, 2026	51-200	22 contacts →
	Indirect evidence “NOTRE ADN: Nous sommes des techniciens spécialisés en génie climatique, génie électrique et gestion technique du bâtiment.” Source: RevenueBase Database · checked Sep 15, 2026
22	Bio-Énergies Diffusion	Indirect evidence	Castanet-tolosan, FranceHQ checked Sep 15, 2026	11-50	21 contacts →
	Indirect evidence “Bio-Énergies Diffusion est le n°1 de la géothermie dans tout le Sud-Ouest de la France.” Source: RevenueBase Database · checked Sep 15, 2026
23	Geosophy	Indirect evidence	Paris, FranceHQ checked Sep 15, 2026	11-50	21 contacts →
	Indirect evidence “Vous souhaitez valoriser votre patrimoine immobilier, maîtriser sa consommation énergétique en lui assurant un approvisionnement local pour son confort thermique?” Source: RevenueBase Database · checked Sep 15, 2026
24	JCM Confort	Indirect evidence	Beaucouzé, FranceHQ checked Sep 15, 2026	11-50	21 contacts →
	Indirect evidence “Spécialistes des systèmes de chauffage basés sur les énergies renouvelables, implantés à Beaucouzé, nous intervenons sur l'ensemble de la région angevine (à Angers, Saumur…” Source: RevenueBase Database · checked Sep 15, 2026
25	Cotrasol	Indirect evidence	Acheres, FranceHQ checked Sep 15, 2026	11-50	19 contacts →
	Indirect evidence “COTRASOL est une entreprise de forage pour l'eau et la géothermie, depuis 1963 nous réalisons des captages d'eau pour le bâtiment, l'adduction d'eau potable, l'irrigation…” Source: RevenueBase Database · checked Sep 15, 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: geothermal energy installation 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 geothermal energy installation companies.
Partial evidence: Its own public description names part of geothermal energy installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geothermal energy installation 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 792 geothermal energy installation companies based in France

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Geothermal energy installation companies based in France at a glance

As of Sep 15, 2026

25.9%Verified-email coverage

5.3Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Paris

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

517

11-50

220

51-200

201-500

501-1,000

1,001-5,000

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 792 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 geothermal energy installation 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 “geothermal energy installation 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 geothermal energy installation 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 geothermal energy installation 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, 1,078 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 15, 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 geothermal energy installation 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 geothermal energy installation companies are there based in France?

RevenueBase identified 792 geothermal energy installation 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?

Groupe Coriance, headquartered in Noisy-Le-Grand, tops this list with the largest team on record.

Which city has the most geothermal energy installation companies?

Paris leads with 14 headquartered companies, followed by Toulouse (12) and Montpellier (8).

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 1,078 verified decision-maker contacts tracked across these 792 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 15, 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.