Company lists · Data refreshed September 2026

Top 25 Subsurface mapping companies based in France

Name: Subsurface mapping 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 107 companies tracked

RevenueBase identified 107 subsurface mapping companies headquartered in France as of September 2026 and tracks 1,666 professional contacts across them, including 642 with verified work emails. Pau is the largest hub.

This list covers subsurface mapping 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

107Companies

1,666Contacts tracked

642Verified emails

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The 25 largest subsurface mapping companies based in France

Ranked by team size

Top 25 of 107 subsurface mapping 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 mapping 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	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
3	Altametris	Indirect evidence	St.-denis, FranceHQ checked Sep 22, 2026	51-200	57 contacts →
	Indirect evidence “ALTAMETRIS, spin-off of SNCF Reseau is the French expert in generating geotechnical data for industrial infrastructure operators.” Source: RevenueBase Database · checked Sep 22, 2026
4	Hydroconsult Sarl	Indirect evidence	Kervignac, FranceHQ checked Sep 22, 2026	11-50	49 contacts →
	Indirect evidence “Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.” Source: RevenueBase Database · checked Sep 22, 2026
5	Gexplore	Indirect evidence	Ludres, FranceHQ checked Sep 22, 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 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	Résodétection	Indirect evidence	Châteaurenard, FranceHQ checked Sep 22, 2026	11-50	30 contacts →
	Indirect evidence “Société leader de la détection et cartographie des réseaux enterrés dans la Région Sud.” Source: RevenueBase Database · checked Sep 22, 2026
8	Ricom Infrastructures & Communications	Indirect evidence	Beaune, FranceHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “Située à Beaune en Bourgogne, RICOM est une entreprise d'ingénierie des réseaux aériens et souterrains, regroupant des métiers tel que : le géo-référencement, la topographie et la…” Source: RevenueBase Database · checked Sep 22, 2026
9	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
10	Syslor	Indirect evidence	Metz, FranceHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “From GNSS receivers to mobile applications for geolocation, underground utility knowledge, and public works operations.” Source: RevenueBase Database · checked Sep 22, 2026
11	Subtop	Indirect evidence	Arpajon, FranceHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Expert en géophysique marine et terrestre depuis 1994, Subtop propose une large gamme d’instruments et de solutions systèmes.” Source: RevenueBase Database · checked Sep 22, 2026
12	BE Tech SUD	Indirect evidence	Nîmes, FranceHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Bureau d'étude spécialisé dans la cartographie SIG, la topographie, les études et la détection des réseaux.” Source: RevenueBase Database · checked Sep 22, 2026
13	Georeva	Indirect evidence	Cintre, FranceHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “Founded in 1994, GEOREVA is your specialist in geophysical equipment, accessories and sofware.We offer a large choice of high quality geophysical equipment, and have developped…” Source: RevenueBase Database · checked Sep 22, 2026
14	Seister	Indirect evidence	Châtenay-malabry, FranceHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “SEISTER is a consulting company specialized in the fields of geosciences, geological and seismic engineering.” Source: RevenueBase Database · checked Sep 22, 2026
15	inframap.sas	Indirect evidence	Croix, FranceHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Inframap transforme la façon dont les infrastructures visibles et invisibles sont cartographiées grâce à plus de 15 ans d’expertise en topographie, détection de réseaux…” Source: RevenueBase Database · checked Sep 22, 2026
16	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
17	NCA Geoloc	Indirect evidence	Grande Synthe, FranceHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “NCA GEOLOC est une entreprise spécialisée dans la géolocalisation et la détection des réseaux enterrés, répondant aux besoins du secteur BTP avec précision et expertise.” Source: RevenueBase Database · checked Sep 22, 2026
18	Genimap	Indirect evidence	Verfeil, FranceHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “GENIMAP est spécialisée dans l’imagerie du sous-sol dans le but de restituer, à travers des capteurs, une image exploitable des objets dissimulés.” Source: RevenueBase Database · checked Sep 22, 2026
19	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
20	For-Ymage	Indirect evidence	Monteux, FranceHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “For-Ymage est un bureau d'étude pluridisciplinaire spécialisé dans le forage dirigé et tous travaux sans tranchées - Réalisation des études de sols et des études géotechniques…” Source: RevenueBase Database · checked Sep 22, 2026
21	MDS	Indirect evidence	Courbevoie, FranceHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Société créée il y a plus de cinquante ans, MDS (Le Matériel de Sondage SAS) s’est initialement destinée à la commercialisation de matériels de forage et de géophysique pour les…” Source: RevenueBase Database · checked Sep 22, 2026
22	Igecav	Indirect evidence	Venette, FranceHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026
23	Cresson Topo	Indirect evidence	La Riche, FranceHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “Cresson Topo, votre expert en ingénierie de la mesure topographique, propose ses services en détection et géoréférencement des réseaux enterrés, auscultation d'ouvrages, scan 3D…” Source: RevenueBase Database · checked Sep 22, 2026
24	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
25	Ingen Group	Indirect evidence	St Apollinaire, FranceHQ checked Sep 22, 2026	11-50	4 contacts →
	Indirect 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

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 mapping 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 mapping companies.
Partial evidence: Its own public description names part of subsurface mapping companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsurface mapping 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 25 of 107 subsurface mapping companies based in France

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Subsurface mapping companies based in France at a glance

As of Sep 22, 2026

38.5%Verified-email coverage

15.6Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · Pau

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 107 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 mapping 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 mapping 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 mapping 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 mapping 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, 642 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 mapping 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 mapping companies are there based in France?

RevenueBase identified 107 subsurface mapping 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 mapping companies?

Pau leads with 4 headquartered companies, followed by Orleans (3) and Paris (3).

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 642 verified decision-maker contacts tracked across these 107 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.