Company lists · Data refreshed September 2026

Top 25 Geological survey services based in France

Name: Geological survey services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 290 companies tracked

RevenueBase identified 290 geological survey services headquartered in France as of September 2026 and tracks 2,221 professional contacts across them, including 679 with verified work emails. Grigny is the largest hub.

This list covers geological survey services 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 19, 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 19, 2026 86% judged on-target in blind review

290Companies

2,221Contacts tracked

679Verified emails

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The 25 largest geological survey services based in France

Ranked by team size

Top 25 of 290 geological survey services based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to geological survey services: 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	Semofi	Indirect evidence	Villeneuve-le-roi, FranceHQ checked Sep 19, 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 19, 2026
2	SOL Solution SAS	Partial evidence	Riom, FranceHQ checked Sep 19, 2026	51-200	65 contacts →
	Partial evidence “Sol Solution is a geotechnical, geological, and geophysical engineering firm, established in 1992.” Source: RevenueBase Database · checked Sep 19, 2026
3	Altametris	Indirect evidence	St.-denis, FranceHQ checked Sep 19, 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 19, 2026
4	Georessources	Partial evidence	Vandoeuvre-lès-nancy, FranceHQ checked Sep 19, 2026	201-500	57 contacts →
	Partial evidence “Created in 2013, GeoRessources is a multidisciplinary laboratory devoted to the field of geological resources - their exploration and exploitation, including recovery, treatment…” Source: RevenueBase Database · checked Sep 19, 2026
5	KAÉNA	Indirect evidence	Saint Vincent De Mercuze, FranceHQ checked Sep 19, 2026	51-200	53 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
6	OPSIA	Indirect evidence	Toulon Cedex 9, FranceHQ checked Sep 19, 2026	51-200	52 contacts →
	Indirect evidence “Opsia, c’est la conjugaison des savoir-faire d’un bureau d’ingénierie mis au service d’une expertise réglementée : le métier de Géomètre Expert.” Source: RevenueBase Database · checked Sep 19, 2026
7	Hydroconsult Sarl	Partial evidence	Kervignac, FranceHQ checked Sep 19, 2026	11-50	49 contacts →
	Partial 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 19, 2026
8	Fondouest	Indirect evidence	Longueville, FranceHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “FONDOUEST is a construction company based out of ZONE ARTISANALE 727 RUE DU PONT CE, LONGUEVILLE, France.” Source: RevenueBase Database · checked Sep 19, 2026
9	Gexplore	Partial evidence	Ludres, FranceHQ checked Sep 19, 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 19, 2026
10	Armasol	Indirect evidence	Réaumont, FranceHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “ARMASOL et ses bureaux d'études géotechniques implantés sur l'ensemble du territoire national vous accompagnent pour aménager et construire en toute sérénité.” Source: RevenueBase Database · checked Sep 19, 2026
11	Realtimeseismic	Indirect evidence	Pau, FranceHQ checked Sep 19, 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 19, 2026
12	AERYS	Indirect evidence	Arcomps, FranceHQ checked Sep 19, 2026	51-200	36 contacts →
	Indirect evidence “SONDAGE GÉOTECHNIQUES : La géotechnique est l'étude de l'adaptation des ouvrages humains aux sols et roches formant le terrain naturel.” Source: RevenueBase Database · checked Sep 19, 2026
13	Adré Réseaux	Indirect evidence	Merignac, FranceHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “ADRÉ Réseaux, société familiale et dynamique, est votre partenaire privilégié pour la réalisation de vos projets en toute sécurité.” Source: RevenueBase Database · checked Sep 19, 2026
14	ICSEO	Indirect evidence	Semur En Auxois, FranceHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “ICSEO est un bureau d'études de sols, indépendant et de taille humaine répartis en plusieurs agences.” Source: RevenueBase Database · checked Sep 19, 2026
15	Geomat	Indirect evidence	Fougères, FranceHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “GEOMAT est une société inscrite à l'Ordre des Géomètres-Experts.” Source: RevenueBase Database · checked Sep 19, 2026
16	GTA Géomètres Experts	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “Nous mettons à votre disposition l'expérience de plus de 20 ans de nos experts topographes et géomètres.” Source: RevenueBase Database · checked Sep 19, 2026
17	Fonvieille Ingenierie	Indirect evidence	Prigonrieux, FranceHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “FONVIEILLE INGENIERIE par l’ensemble de ses 35 techniciens géomètres et ingénieurs, et de ses 35 ans d’expérience s’engage dans une démarche qualitative de service, tout en…” Source: RevenueBase Database · checked Sep 19, 2026
18	Sogexfo Géomètres-Experts Associés	Indirect evidence	Moissac, FranceHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “Notre activité s'articule autour de 3 pôles principaux - Le Foncier : garantie et valorisation de vos propriétés immobilières.” Source: RevenueBase Database · checked Sep 19, 2026
19	Saga Ingenierie	Indirect evidence	Grigny, FranceHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “À vos côtés, du sol jusqu’à l’horizon, pour tous vos projets géotechniques.” Source: RevenueBase Database · checked Sep 19, 2026
20	Euclyd	Indirect evidence	Bois-guillaume, FranceHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “EUCLYD Géomètres-Experts ** Levé topographique, Division de terrains, Bornage, Implantation, Plan de récolement, Copropriété, Plan d'intérieur et de façades, Levé au scanner et au…” Source: RevenueBase Database · checked Sep 19, 2026
21	Airgéo	Indirect evidence	Cholet Cedex, FranceHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Cabinet de Géomètres-Experts implanté à Nantes (44), Le Mans (72), Tours (37), Angers (49), Cholet (49), Châteaubriant (44), Bouguenais (44), Sablé-sur-Sarthe (72), Niort (79)…” Source: RevenueBase Database · checked Sep 19, 2026
22	Cpgf Horizon & Formation	Indirect evidence	Avon, FranceHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “CPGF HORIZON est un bureau d’ingénierie spécialisé en geo-sciences.” Source: RevenueBase Database · checked Sep 19, 2026
23	APC Ingenierie	Indirect evidence	Vigneux-de-bretagne, FranceHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Notre bureau d'études est spécialisé en géotechnique, géologie, hydrogéologie, environnement et diagnostic pollution, essais sur béton et matériaux de la construction, contrôle et…” Source: RevenueBase Database · checked Sep 19, 2026
24	CDC Conseils	Indirect evidence	Machecoul-saint-meme, FranceHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “CDC CONSEILS, cabinet de Géomètre-Expert, Ingénierie et Topographie/Réseaux basé à Machecoul-Saint-Même, Montaigu-Vendée et les Herbiers.” Source: RevenueBase Database · checked Sep 19, 2026
25	Stratégéo Conseil	Indirect evidence	Grigny, FranceHQ checked Sep 19, 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 19, 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: geological survey services. 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 geological survey services.
Partial evidence: Its own public description names part of geological survey services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geological survey services. 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 290 geological survey services based in France

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Geological survey services based in France at a glance

As of Sep 19, 2026

30.6%Verified-email coverage

7.7Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Grigny

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

181

11-50

51-200

201-500

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 290 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 geological survey services, 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 “geological survey services”. 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 geological survey services), 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 geological survey services, 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, 679 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 19, 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 geological survey services, 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 geological survey services are there based in France?

RevenueBase identified 290 geological survey services 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?

Semofi, headquartered in Villeneuve-Le-Roi, tops this list with the largest team on record.

Which city has the most geological survey services?

Grigny leads with 4 headquartered companies, followed by Nancy (4) and Nimes (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 679 verified decision-maker contacts tracked across these 290 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 19, 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.