Company lists · Data refreshed November 2026

Top 25 Subsurface characterization firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 103 companies tracked

RevenueBase identified 103 company matches for subsurface characterization firms associated with France as of November 2026 and tracks 1,824 professional contacts across them, including 752 with verified work emails. Strasbourg is the largest hub.

This list covers company matches for subsurface characterization firms 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

103Companies

1,824Contacts tracked

752Verified emails

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The 25 largest subsurface characterization firms based in France

Ranked by team size

Top 25 of 103 company matches for subsurface characterization firms 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Sercel	Exact match	Carquefou, FranceHQ recorded Nov 6, 2026	1,001-5,000	847 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	SOL Solution SAS	Exact match	Riom, FranceHQ recorded Nov 6, 2026	51-200	67 contacts →
	Exact match “Sol Solution is a geotechnical, geological, and geophysical engineering firm, established in 1992.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Altametris	Exact match	St.-denis, FranceHQ recorded Nov 6, 2026	51-200	60 contacts →
	Exact match “ALTAMETRIS, spin-off of SNCF Reseau is the French expert in generating geotechnical data for industrial infrastructure operators.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	KAÉNA	Exact match	Saint Vincent De Mercuze, FranceHQ recorded Nov 6, 2026	51-200	52 contacts →
	Exact match “Bureau d'études géotechniques situé au coeur des Alpes (1 agence au Touvet et 1 agence à Annecy,1 agence à St Priest) ayant ses propres ateliers de sondages (5 foreuses dont 1…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Fondouest	Exact match	Longueville, FranceHQ recorded Nov 6, 2026	51-200	48 contacts →
	Exact match “FONDOUEST is a construction company based out of ZONE ARTISANALE 727 RUE DU PONT CE, LONGUEVILLE, France.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Gexplore	Exact match	Ludres, FranceHQ recorded Nov 6, 2026	11-50	46 contacts →
	Exact match “GexplOre \| Specialists in Geology, Geophysics, Well Logging & Mining Consultation GexplOre is a leader in geological exploration, providing consulting services and integrated…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	ICSEO	Exact match	Semur En Auxois, FranceHQ recorded Nov 6, 2026	51-200	39 contacts →
	Exact match “ICSEO est un bureau d'études de sols, indépendant et de taille humaine répartis en plusieurs agences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Imageau	Exact match	Nîmes, FranceHQ recorded Nov 6, 2026	11-50	33 contacts →
	Exact match “imaGeau's innovative technology is the answer to better manage our groundwater resources in order to meet in the best possible way the environmental, industrial and regulatory…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	APC Ingenierie	Exact match	Vigneux-de-bretagne, FranceHQ recorded Nov 6, 2026	11-50	27 contacts →
	Exact match “Notre bureau d'études est spécialisé en géotechnique, géologie, hydrogéologie, environnement et diagnostic pollution, essais sur béton et matériaux de la construction, contrôle et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	EG SOL Alpes	Exact match	Gières, FranceHQ recorded Nov 6, 2026	11-50	19 contacts →
	Exact match “Le groupe EG SOL, spécialiste de la Géotechnique depuis 1993, est aujourd’hui présent dans tout l’Hexagone à travers ses 4 agences principales et ses 6 antennes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	SIAL	Exact match	Mérignac, FranceHQ recorded Nov 6, 2026	1-10	16 contacts →
	Exact match “SIAL est un bureau indépendant d’études géotechniques, implanté à Mérignac près de Bordeaux en Gironde et doté d’une agence à Atton en Meurthe et Moselle.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Emci SAS	Exact match	Le Perray-en-yvelines, FranceHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “Matériels de forage et d’étude de sols Drilling and soil investigation equipment” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Verbeke Essais DE SOL	Exact match	Flers-en-escrebieux, FranceHQ recorded Nov 6, 2026	51-200	13 contacts →
	Exact match “Fort de son expertise dans le sol depuis 1973, la société VERBEKE s’est toujours développée en suivant l’évolution des besoins, des normes et des techniques pour proposer une…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Geocadre	Exact match	Meaux, FranceHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match “GEOCADRE est un bureau d’études spécialisé en ingénierie géotechnique, géophysique et environnementale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Ingen Innovations Geosciences	Exact match	St Apollinaire, FranceHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Explor-E	Exact match	Yerville, FranceHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “Explor-e est une entreprise indépendante qui intervient dans deux domaines convergents et complémentaires: 1.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Sefia, Études Géotechniques	Exact match	Buc, FranceHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “Page en construction” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Igecav	Exact match	Venette, FranceHQ recorded Nov 6, 2026	1-10	8 contacts →
	Exact match “IGECAV est un bureau d'étude spécialisé dans la cartographie 3D, le conseil et le diagnostic de stabilité de cavités souterraines et d'environnements complexes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Semm Logging	Exact match	Vesdun, FranceHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “SEMM LOGGING est une société indépendante spécialisée dans les diagraphies appliquées à la géotechnique, l’hydrogéologie, l’environnement, les carrières et l’énergie.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Apogea Atlantique	Exact match	Saintes, FranceHQ recorded Nov 6, 2026	1-10	6 contacts →
	Exact match “APOGEA Atlantique est un Bureau d’Etudes et d’Investigations géotechniques situé à SAINTES en Charente-Maritime (17).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Geopale Environnement	Exact match	Leulinghem, FranceHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “GEOPALE ENVIRONNEMENT Mission de détection et géoréférencement des réseaux avant travaux (investigations complémentaires et opérations de localisation).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Cenote Sarl	Exact match	Nîmes, FranceHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “Profil de la société « CENOTE » Le principal atout de la Société Cénote est sa capacité à réunir des compétences spécifiques d’experts du karst, des formations superficielles et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Celigeo	Exact match	Lorette, FranceHQ recorded Nov 6, 2026	11-50	4 contacts →
	Exact match “Une société du groupe RSK contact@celigeo.fr SPECIALISTE DES ANALYSES DE SOLS, POUR LES PROFESSIONNELS D'INFRASTRUCTURES ET LES PARTICULIERS, ETUDES D’INFILTRATION, ALEAS MINIERS…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Ingen Group	Exact match	St Apollinaire, FranceHQ recorded Nov 6, 2026	1-10	4 contacts →
	Exact match “Maison mère des entités : INGEN INNOVATIONS GEOSCIENCES (Exploration \| Recherche & Développement ) ROCKSLAB (Laboratoire sols & matériaux) 🟢 INGEN ENVIRONNEMENT (Sols \|…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	2gi Consultant	Exact match	La Penne, FranceHQ recorded Nov 6, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 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 “subsurface characterization firms”. 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 103 subsurface characterization firms based in France

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Subsurface characterization firms based in France at a glance

As of Nov 6, 2026

41.2%Verified-email coverage

17.7Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Strasbourg

Nov 6, 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 103 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 “subsurface characterization firms” 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 752 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 “subsurface characterization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsurface characterization firms are there based in France?

RevenueBase identified 103 company matches for subsurface characterization firms 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?

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

Which city has the most subsurface characterization firms?

Strasbourg leads with 3 company records, followed by Chambery (2) and Nimes (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 752 professional contacts with verified work emails tracked across these 103 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.