Company lists · Data refreshed September 2026

Top 25 Geothermal energy consultants based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 315 companies tracked

RevenueBase identified 315 geothermal energy consultants headquartered in France as of September 2026 and tracks 2,728 professional contacts across them, including 903 with verified work emails. Paris is the largest hub.

This list covers geothermal energy consultants 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 16, 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 16, 2026 86% judged on-target in blind review

315Companies

2,728Contacts tracked

903Verified emails

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The 25 largest geothermal energy consultants based in France

Ranked by team size

Top 25 of 315 geothermal energy consultants based in France, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal energy consultants: 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 16, 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 16, 2026
2	Beicip-Franlab	Strong evidence	Rueil-malmaison, FranceHQ checked Sep 16, 2026	51-200	212 contacts →
	Strong evidence “Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.” Source: RevenueBase Database · checked Sep 16, 2026
3	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	143 contacts →
	Indirect evidence “Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Source: RevenueBase Database · checked Sep 16, 2026
4	Semofi	Indirect evidence	Villeneuve-le-roi, FranceHQ checked Sep 16, 2026	51-200	114 contacts →
	Indirect evidence “Filiale du Groupe SEMOFI, acteur majeur des filières géotechnique et SSP, SEMOFI est un bureau d’études dont la vocation est d’accompagner les collectivités territoriales…” Source: RevenueBase Database · checked Sep 16, 2026
5	Akajoule	Indirect evidence	Saint Nazaire, FranceHQ checked Sep 16, 2026	11-50	54 contacts →
	Indirect evidence “AKAJOULE est un bureau d’étude spécialisé dans l’accompagnement et l’ingénierie en énergie et environnement.” Source: RevenueBase Database · checked Sep 16, 2026
6	CFG Geothermal	Indirect evidence	Orleans, FranceHQ checked Sep 16, 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 16, 2026
7	Gexplore	Indirect evidence	Ludres, FranceHQ checked Sep 16, 2026	11-50	41 contacts →
	Indirect evidence “GexplOre \| Specialists in Geology, Geophysics, Well Logging & Mining Consultation GexplOre is a leader in geological exploration, providing consulting services and integrated…” Source: RevenueBase Database · checked Sep 16, 2026
8	ENEOR	Indirect evidence	Le Pecq, FranceHQ checked Sep 16, 2026	11-50	38 contacts →
	Indirect evidence “ENEOR : L'ingénierie énergétique par excellence POSITIONNEMENT: Bureau d’études Technique énergétique indépendant spécialisé dans, l’ingénierie de conception, d’exécution et…” Source: RevenueBase Database · checked Sep 16, 2026
9	Realtimeseismic	Indirect evidence	Pau, FranceHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “Realtimeseismic is a leading geophysics services and technology solutions company – we are passionate about innovating to bring agile, accurate geophysics solutions to our valued…” Source: RevenueBase Database · checked Sep 16, 2026
10	Vivien	Indirect evidence	Mérignac, FranceHQ checked Sep 16, 2026	11-50	34 contacts →
	Indirect evidence “Bureau d’études thermique, fluides et environnement.” Source: RevenueBase Database · checked Sep 16, 2026
11	IMAEE	Indirect evidence	Selestat, FranceHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “IMAEE est un bureau d'études fluides, thermique, électricité, photovoltaïque, performance énergétique et rénovation TCE.” Source: RevenueBase Database · checked Sep 16, 2026
12	Exoceth	Partial evidence	Guer, FranceHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “EXOCETH WATER & ENERGY SYSTEMS is an engineering office associated to a technical assistance service dedicated to water and energy applications.” Source: RevenueBase Database · checked Sep 16, 2026
13	Lemasson	Indirect evidence	Agneaux, FranceHQ checked Sep 16, 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 16, 2026
14	Cpgf Horizon & Formation	Indirect evidence	Avon, FranceHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “CPGF HORIZON est un bureau d’ingénierie spécialisé en geo-sciences.” Source: RevenueBase Database · checked Sep 16, 2026
15	Bio-Énergies Diffusion	Indirect evidence	Castanet-tolosan, FranceHQ checked Sep 16, 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 16, 2026
16	Geosophy	Indirect evidence	Paris, FranceHQ checked Sep 16, 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 16, 2026
17	Ferest Energies	Partial evidence	Lille, FranceHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “Bureau d'Etudes Techniques spécialisé en économie d'énergie, en environnement et dans les Energies Nouvelles et Renouvelables.” Source: RevenueBase Database · checked Sep 16, 2026
18	ACM Ingénierie Bureau D'etudes Fluides & Thermique	Indirect evidence	La Montagne, FranceHQ checked Sep 16, 2026	11-50	20 contacts →
	Indirect evidence “Bureau d'études en thermique du bâtiment et ingénierie des fluides basé à Nantes (44) et à Rennes (35) et travaillant sur tout le territoire, ACM Ingénierie optimise l'énergie de…” Source: RevenueBase Database · checked Sep 16, 2026
19	Cotrasol	Indirect evidence	Acheres, FranceHQ checked Sep 16, 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 16, 2026
20	Stratégéo Conseil	Indirect evidence	Grigny, FranceHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “StratéGéO Conseil est un bureau d'étude en Géothermie & Hydrogéologie basé au 26 rue des Carriers Italiens à Grigny (91), intervenant sur tout le territoire national.” Source: RevenueBase Database · checked Sep 16, 2026
21	Energio	Indirect evidence	FranceHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “Un bureau d’études indépendant d’ingénierie énergétique qui accompagne ses clients sur la gestion et la valorisation énergétique de leur patrimoine.” Source: RevenueBase Database · checked Sep 16, 2026
22	TLS Geothermics	Partial evidence	Toulouse, FranceHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “TLS Geothermics is a geoscience tech company, exploring and developing geothermal projects for power, heat, cold and byproducts.” Source: RevenueBase Database · checked Sep 16, 2026
23	EGEH	Indirect evidence	Limoges, FranceHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “From its creation in 1994, our company has been involved in those environmental areas where it can display the expertise of its team of geologists and hydrogeologists.” Source: RevenueBase Database · checked Sep 16, 2026
24	Drillheat	Indirect evidence	Maisse (91), FranceHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “Expert en forage géothermique de surface.” Source: RevenueBase Database · checked Sep 16, 2026
25	BET Huguet	Indirect evidence	Nancy, FranceHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “L’énergie est notre avenir, économisons la… Ces simples mots déclinés dans de nombreuses brochures sont pourtant un vaste programme et un vrai challenge pour tous les utilisateurs…” Source: RevenueBase Database · checked Sep 16, 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 consultants. 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 consultants.
Partial evidence: Its own public description names part of geothermal energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geothermal energy consultants. 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 315 geothermal energy consultants based in France

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Geothermal energy consultants based in France at a glance

As of Sep 16, 2026

33.1%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

6.0%Largest-city concentration · Paris

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

220

11-50

51-200

201-500

501-1,000

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 315 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 consultants, 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 consultants”. 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 consultants), 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 consultants, 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, 903 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 16, 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 consultants, 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 consultants are there based in France?

RevenueBase identified 315 geothermal energy consultants 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 consultants?

Paris leads with 19 headquartered companies, followed by Orleans (6) and Lyon (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 903 verified decision-maker contacts tracked across these 315 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 16, 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.