Company lists · Data refreshed November 2026

Top 16 Direct use geothermal developers based in France

RevenueBase identified 46 company matches for direct use geothermal developers associated with France as of November 2026 and tracks 4,373 professional contacts across them, including 2,520 with verified work emails. Pau is the largest hub.

This list covers company matches for direct use geothermal developers 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 November 6, 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 Nov 6, 2026 How this list was built
46Companies
4,373Contacts tracked
2,520Verified emails
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The 16 largest direct use geothermal developers based in France

Ranked by team size
Top 16 of 46 company matches for direct use geothermal developers based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBoulogne-billancourt, FranceHQ recorded Nov 6, 20265,001-10,0003,530 contacts →

Exact match

“Fondé en France en 1963, le groupe IDEX, fort de près de 6 500 collaborateurs, développe, conçoit, finance, construit et exploite des infrastructures énergétiques locales et…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNoisy-le-grand, FranceHQ recorded Nov 6, 2026501-1,000491 contacts →

Exact match

“Pour une énergie propre et mieux utilisée Notre mission : fournir des solutions énergétiques performantes et économiques, tout en minimisant l'impact environnemental.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchClamart, FranceHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“The Earth can accumulate summer heat and reuse it in the winter, so energy can be stored from season to season.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOrleans, FranceHQ recorded Nov 6, 202611-5050 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Vous souhaitez valoriser votre patrimoine immobilier, maîtriser sa consommation énergétique en lui assurant un approvisionnement local pour son confort thermique?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCastanet-tolosan, FranceHQ recorded Nov 6, 202611-5019 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNanterre, FranceHQ recorded Nov 6, 20261-1018 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMaisse (91), FranceHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Expert en forage géothermique de surface.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchToulouse, FranceHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“TLS Geothermics is a geoscience tech company, exploring and developing geothermal projects for power, heat, cold and byproducts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPau, FranceHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“GEOTHERMAQ est une société résolument engagée dans la transition énergétique.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBordeaux, FranceHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Mixéner est une entreprise bordelaise spécialisée dans la conception et la réalisation de réseaux énergétiques innovants, responsables et durables, exploitant les ressources et…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRoissy-En-France, FranceHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“GEOFLUID is a geothermal engineering and service company based in FRANCE, France.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPlaisir, FranceHQ recorded Nov 6, 202611-5011 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchChevilly-larue, FranceHQ recorded Nov 6, 202611-507 contacts →

Exact match

“La SEMHACH gère et exploite le plus grand réseau de chaleur géothermique européen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchChatillon Le Duc, FranceHQ recorded Nov 6, 20261-103 contacts →

Exact match

“L’expertise du chauffage Géothermique, Aérothermique, et Air Extrait • Depuis sa création en 2008, l’entreprise Besançon Géothermie couvre l’étude, l’installation et la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMarseille, FranceHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Wisearth est une entreprise spécialisée dans la géothermie de surface, proposant des solutions de forage sur sondes pour chauffer et rafraîchir nos bâtiments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 16 of 46 direct use geothermal developers based in France

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Direct use geothermal developers based in France at a glance

As of Nov 6, 2026
57.6%Verified-email coverage
95.1Average contacts per company
1-10Median size (employees)
6.5%Largest-city concentration · Pau
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
14
51-200
3
501-1,000
1
5,001-10,000
2

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 46 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 “direct use geothermal developers” 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 2,520 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 November 6, 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 “direct use geothermal developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many direct use geothermal developers are there based in France?

RevenueBase identified 46 company matches for direct use geothermal developers associated with France as of November 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?

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

Which city has the most direct use geothermal developers?

Pau leads with 3 company records, followed by Orleans (2) and Paris (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 2,520 professional contacts with verified work emails tracked across these 46 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 November 6, 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.