Company lists · Data refreshed October 2026

Top 25 Geothermal retrofit contractors based in France

Name: Geothermal retrofit contractors based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 13, 2026 201 companies tracked

RevenueBase identified 201 company matches for geothermal retrofit contractors associated with France as of October 2026 and tracks 796 professional contacts across them, including 146 with verified work emails. Paris is the largest hub.

This list covers company matches for geothermal retrofit contractors associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 13, 2026 How this list was built

201Companies

796Contacts tracked

146Verified emails

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The 25 largest geothermal retrofit contractors based in France

Ranked by team size

Top 25 of 201 company matches for geothermal retrofit contractors based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	CFG Geothermal	Exact match	Orleans, FranceHQ recorded Oct 13, 2026	11-50	47 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2	Enerconfort	Exact match	Artigues-près-bordeaux, FranceHQ recorded Oct 13, 2026	11-50	33 contacts →
	Exact match “La société Enerconfort est votre expert dans le domaine de l’énergie et particulièrement dans l’éco-rénovation de l’habitat.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3	JCM Confort	Exact match	Beaucouzé, FranceHQ recorded Oct 13, 2026	11-50	26 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4	Lemasson	Exact match	Agneaux, FranceHQ recorded Oct 13, 2026	11-50	23 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	Bio-Énergies Diffusion	Exact match	Castanet-tolosan, FranceHQ recorded Oct 13, 2026	11-50	20 contacts →
	Exact match “Bio-Énergies Diffusion est le n°1 de la géothermie dans tout le Sud-Ouest de la France.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6	Geother	Exact match	Nanterre, FranceHQ recorded Oct 13, 2026	1-10	16 contacts →
	Exact match “GEOTHER is an engineering and consulting company specializing in geothermal energy and, in a general way, in renewable energies, groundwater management and hydrogeotechnics.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7	Drillheat	Exact match	Maisse (91), FranceHQ recorded Oct 13, 2026	11-50	15 contacts →
	Exact match “Expert en forage géothermique de surface.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8	Geothermaq	Exact match	Pau, FranceHQ recorded Oct 13, 2026	1-10	14 contacts →
	Exact match “GEOTHERMAQ est une société résolument engagée dans la transition énergétique.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9	Cena Ingénierie	Exact match	Bassens, FranceHQ recorded Oct 13, 2026	11-50	13 contacts →
	Exact match “CENA Ingénierie est un Bureau d’Etudes Techniques en ingénierie des fluides du bâtiment, spécialisé en énergies renouvelables (géothermie, biomasse, solaire thermique…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Energeco SAS	Exact match	Bas En Basset, FranceHQ recorded Oct 13, 2026	11-50	12 contacts →
	Exact match “Installateur conseil Chauffage Plomberie Sanitaire Climatisation Ventilation Energies Renouvelables Intervention Loire & Haute Loire Le secteur des Energies Renouvelables est…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	Fern Énergies Renouvelables	Exact match	Cergy-pontoise, FranceHQ recorded Oct 13, 2026	1-10	11 contacts →
	Exact match “FERN Énergies Renouvelables est spécialisée dans l'installation de pompes à chaleur et de panneaux photovoltaïques.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	Géotec Energie	Exact match	Plaisir, FranceHQ recorded Oct 13, 2026	11-50	11 contacts →
	Exact match “La société Géotec Energie, filiale du Groupe Géotec, est spécialisée dans la réalisation de forages géothermiques sur sondes.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13	Geofluid	Exact match	Roissy-En-France, FranceHQ recorded Oct 13, 2026	11-50	9 contacts →
	Exact match “GEOFLUID is a geothermal engineering and service company based in FRANCE, France.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	Inthersanit	Exact match	La Motte Servolex, FranceHQ recorded Oct 13, 2026	11-50	8 contacts →
	Exact match “INTHERSANIT is a construction company based out of 273 RUE DENIS PAPIN, LA MOTTE SERVOLEX, France.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Étao Vendée	Exact match	Boufféré, FranceHQ recorded Oct 13, 2026	11-50	6 contacts →
	Exact match “Étao Vendée : l’expert des solutions de pompes à chaleur en géothermie, aquathermie et aérothermie.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16	Objectif Maison Responsable	Exact match	Paris, FranceHQ recorded Oct 13, 2026	11-50	6 contacts →
	Exact match “Objectif Maison Responsable accompagne depuis 2017 les particuliers, copropriétés et bailleurs sociaux dans leurs projets de rénovation énergétique globale.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17	Econowatt	Exact match	Vetraz Monthoux, FranceHQ recorded Oct 13, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18	Energy Habitat	Exact match	Cherbourg En Cotentin, FranceHQ recorded Oct 13, 2026	1-10	5 contacts →
	Exact match “Energy Habitat est une entreprise spécialisée dans les solutions de rénovation énergétique pour l’habitat : pompes à chaleur (air/eau, air/air, géothermiques, hybrides), panneaux…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	Climatika 77	Exact match	Pontault Combault, FranceHQ recorded Oct 13, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20	Domociel	Exact match	Limours, FranceHQ recorded Oct 13, 2026	1-10	5 contacts →
	Exact match “Domociel est une société de plomberie chauffage qui propose de solutions d'énergie renouvelable tels que * le solaire thermique pour chauffer un ballon d'eau chaude sanitaire * le…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21	Enairio	Exact match	Montpellier, FranceHQ recorded Oct 13, 2026	1-10	5 contacts →
	Exact match “ENAIRIO est une entreprise spécialisée dans les solutions énergétiques performantes et durables, au service des particuliers, des professionnels et des collectivités.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	CALIS	Exact match	Bischoffsheim, FranceHQ recorded Oct 13, 2026	1-10	4 contacts →
	Exact match “CALIS fait parti du Groupe VELUM et est fabricant de Pompes à Chaleur depuis 2008.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Impact Energie	Exact match	Mudaison, FranceHQ recorded Oct 13, 2026	11-50	4 contacts →
	Exact match “Votre expert en économie d'énergie.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24	Dahuron Sarl	Exact match	Saint-ouen, FranceHQ recorded Oct 13, 2026	11-50	4 contacts →
	Exact match “Réalisation d'installations thermiques et électriques toutes énergies fossiles et renouvelables, gaz, fioul, pompes à chaleur.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Norma Froid	Exact match	Barentin, FranceHQ recorded Oct 13, 2026	11-50	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “geothermal retrofit contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 201 geothermal retrofit contractors based in France

See the full list, filter by size, metro and specialty, and access 146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal retrofit contractors based in France at a glance

As of Oct 13, 2026

18.3%Verified-email coverage

4.0Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Paris

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

141

11-50

51-200

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 201 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with France whose business descriptions match “geothermal retrofit contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 146 professional contacts with verified work emails across the full matched dataset. 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 October 13, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geothermal retrofit contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal retrofit contractors are there based in France?

RevenueBase identified 201 company matches for geothermal retrofit contractors associated with France as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

CFG Geothermal tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal retrofit contractors?

Paris leads with 5 company records, followed by Argenteuil (2) and Concarneau (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 146 professional contacts with verified work emails tracked across these 201 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 13, 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 SmartSearch, 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.