Company lists · Data refreshed September 2026

Top 23 Subsurface exploration companies based in France

Name: Subsurface exploration companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 86 companies tracked

RevenueBase identified 86 subsurface exploration companies headquartered in France as of September 2026 and tracks 2,043 professional contacts across them, including 686 with verified work emails. Orleans is the largest hub.

This list covers subsurface exploration 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 22, 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 22, 2026 86% judged on-target in blind review

86Companies

2,043Contacts tracked

686Verified emails

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The 23 largest subsurface exploration companies based in France

Ranked by team size

Top 23 of 86 subsurface exploration companies based in France, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to subsurface exploration 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	Sercel	Partial evidence	Carquefou, FranceHQ checked Sep 22, 2026	1,001-5,000	761 contacts →
	Partial evidence “From natural resources to earth and infrastructure monitoring, energy transition, and defense, Sercel is a pioneer in measuring and understanding Earth’s subsurface to provide…” Source: RevenueBase Database · checked Sep 22, 2026
2	Foraco International SA	Indirect evidence	Marseille, FranceHQ checked Sep 22, 2026	1,001-5,000	458 contacts →
	Indirect evidence “Foraco International SA (TSX: FAR) is a leading global mineral drilling services company that provides a comprehensive and reliable service offering in mining and water projects.” Source: RevenueBase Database · checked Sep 22, 2026
3	Beicip-Franlab	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 22, 2026	51-200	212 contacts →
	Indirect 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 22, 2026
4	SOL Solution SAS	Indirect evidence	Riom, FranceHQ checked Sep 22, 2026	51-200	65 contacts →
	Indirect evidence “Sol Solution is a geotechnical, geological, and geophysical engineering firm, established in 1992.” Source: RevenueBase Database · checked Sep 22, 2026
5	Gexplore	Partial evidence	Ludres, FranceHQ checked Sep 22, 2026	11-50	41 contacts →
	Partial 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 22, 2026
6	Realtimeseismic	Indirect evidence	Pau, FranceHQ checked Sep 22, 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 22, 2026
7	Flodim	Indirect evidence	Manosque, FranceHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect evidence “Providing Solutions since 1995, FLODIM operates worldwide and develops, manufactures and operates its own equipments in the Solution Mining, Oil & Gas, Geothermal wells and…” Source: RevenueBase Database · checked Sep 22, 2026
8	CERES	Indirect evidence	Montfarville, FranceHQ checked Sep 22, 2026	1-10	19 contacts →
	Indirect evidence “Spécialisés dans l'acquisition et le traitement de données géophysiques marines, la plongée, la recherche et le renflouement d'épaves, la société CERES répond aux besoins de ses…” Source: RevenueBase Database · checked Sep 22, 2026
9	TLS Geothermics	Indirect evidence	Toulouse, FranceHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “TLS Geothermics is a geoscience tech company, exploring and developing geothermal projects for power, heat, cold and byproducts.” Source: RevenueBase Database · checked Sep 22, 2026
10	Emci SAS	Indirect evidence	Le Perray-en-yvelines, FranceHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Matériels de forage et d’étude de sols Drilling and soil investigation equipment” Source: RevenueBase Database · checked Sep 22, 2026
11	Ingen Innovations Geosciences	Indirect evidence	St Apollinaire, FranceHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Chez INGEN INNOVATIONS GEOSCIENCES, nous nous engageons à repousser les limites de la technologie pour fournir des solutions innovantes en géologie et géophysique, adaptées aux…” Source: RevenueBase Database · checked Sep 22, 2026
12	Sefia, Études Géotechniques	Indirect evidence	Buc, FranceHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “Page en construction” Source: RevenueBase Database · checked Sep 22, 2026
13	Explor-E	Indirect evidence	Yerville, FranceHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “Explor-e est une entreprise indépendante qui intervient dans deux domaines convergents et complémentaires: 1.” Source: RevenueBase Database · checked Sep 22, 2026
14	Cadegeau	Indirect evidence	Sevremoine, FranceHQ checked Sep 22, 2026	11-50	5 contacts →
	Indirect evidence “Etudes environnementales et géotechniques” Source: RevenueBase Database · checked Sep 22, 2026
15	Enerex	Indirect evidence	Vandoeuvre-lès-nancy, FranceHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Created in early 2020 in Nancy, ENEREX works on the field of new energies and unconventional reservoirs prospection.” Source: RevenueBase Database · checked Sep 22, 2026
16	Ingen Group	Partial evidence	St Apollinaire, FranceHQ checked Sep 22, 2026	11-50	4 contacts →
	Partial evidence “Maison mère des entités : INGEN INNOVATIONS GEOSCIENCES (Exploration \| Recherche & Développement ) ROCKSLAB (Laboratoire sols & matériaux) INGEN LOGGING (Surface logging) 🟢 INGEN…” Source: RevenueBase Database · checked Sep 22, 2026
17	Geopale Environnement	Indirect evidence	Leulinghem, FranceHQ checked Sep 22, 2026	1-10	3 contacts →
	Indirect evidence “GEOPALE ENVIRONNEMENT Mission de détection et géoréférencement des réseaux avant travaux (investigations complémentaires et opérations de localisation).” Source: RevenueBase Database · checked Sep 22, 2026
18	Infogeo	Partial evidence	Guyancourt, FranceHQ checked Sep 22, 2026	1-10	3 contacts →
	Partial evidence “INFOGEO est un producteur de connaissances géologiques pour les projets d'exploration du sous-sol en lien avec la transition énergétique (gisements de métaux critiques ou de…” Source: RevenueBase Database · checked Sep 22, 2026
19	Hydrophy	Indirect evidence	St Julien En Vercors, FranceHQ checked Sep 22, 2026	51-200	2 contacts →
	Indirect evidence “Des compétences et un savoir-faire reconnus en hydrogéologie, géologie et géophysique appliquée aux eaux souterraines, à l’appui des métiers du groupe GÉOLITHE.” Source: RevenueBase Database · checked Sep 22, 2026
20	Sismocean	Indirect evidence	St Georges D Orques, FranceHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “Geology and geophysics : our services cover all types of land and marine site surveys.” Source: RevenueBase Database · checked Sep 22, 2026
21	GPC Instrumentation Process	Indirect evidence	Roissy En France, FranceHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “GPC INSTRUMENTATION PROCESS GPC INSTRUMENTATION PROCESS (GPC IP) is a consulting engineers bureau and a service company created in 1989 from a nucleus of professionals experienced…” Source: RevenueBase Database · checked Sep 22, 2026
22	Localis Détection Inspection	Indirect evidence	Gignac, FranceHQ checked Sep 22, 2026	1-10	1 contacts →
	Indirect evidence “Entreprise spécialisé dans la détection des réseaux enterrés, relever topographique et récolement” Source: RevenueBase Database · checked Sep 22, 2026
23	2gi Consultant	Indirect evidence	La Penne, FranceHQ checked Sep 22, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 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: subsurface exploration 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 subsurface exploration companies.
Partial evidence: Its own public description names part of subsurface exploration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsurface exploration 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 23 of 86 subsurface exploration companies based in France

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Subsurface exploration companies based in France at a glance

As of Sep 22, 2026

33.6%Verified-email coverage

23.8Average contacts per company

1-10Median size (employees)

3.5%Largest-city concentration · Orleans

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 86 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 subsurface exploration 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 “subsurface exploration 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 subsurface exploration 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 subsurface exploration 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, 686 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 22, 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 subsurface exploration 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 subsurface exploration companies are there based in France?

RevenueBase identified 86 subsurface exploration 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?

Sercel, headquartered in Carquefou, tops this list with the largest team on record.

Which city has the most subsurface exploration companies?

Orleans leads with 3 headquartered companies, followed by Paris (3) and Montereau Sur Le Jard (2).

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 686 verified decision-maker contacts tracked across these 86 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 22, 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.