Company lists · Data refreshed September 2026

Top 25 Hydrogeological survey companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 210 companies tracked

RevenueBase identified 210 hydrogeological survey companies headquartered in France as of September 2026 and tracks 2,632 professional contacts across them, including 779 with verified work emails. Paris is the largest hub.

This list covers hydrogeological survey 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 20, 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 20, 2026 86% judged on-target in blind review

210Companies

2,632Contacts tracked

779Verified emails

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The 25 largest hydrogeological survey companies based in France

Ranked by team size

Top 25 of 210 hydrogeological survey companies based in France, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hydrogeological survey 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	Foraco International SA	Indirect evidence	Marseille, FranceHQ checked Sep 20, 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 20, 2026
2	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 20, 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 20, 2026
3	Temsol	Indirect evidence	Merignac Cedex, FranceHQ checked Sep 20, 2026	51-200	125 contacts →
	Indirect evidence “Temsol est reconnue depuis 50 ans comme le spécialiste dans les domaines de la géotechnique, des structures et de l’environnement.” Source: RevenueBase Database · checked Sep 20, 2026
4	Semofi	Indirect evidence	Villeneuve-le-roi, FranceHQ checked Sep 20, 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 20, 2026
5	PCM Ingenierie	Indirect evidence	Saint-mandé, FranceHQ checked Sep 20, 2026	51-200	96 contacts →
	Indirect evidence “PCM ingénierie est un groupe de BET pluridisciplinaires regroupés au sein de 7 sociétés : PCM GEODATA : Constitué de SECTEUR créé en 1992, intégré à PCM en 2013 et GEOVIVIER créé…” Source: RevenueBase Database · checked Sep 20, 2026
6	SOL Solution SAS	Indirect evidence	Riom, FranceHQ checked Sep 20, 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 20, 2026
7	KAÉNA	Indirect evidence	Saint Vincent De Mercuze, FranceHQ checked Sep 20, 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 20, 2026
8	Envolis	Indirect evidence	Gujan-mestras, FranceHQ checked Sep 20, 2026	11-50	52 contacts →
	Indirect evidence “ENVOLIS est un bureau d’études composé de scientifiques et de consultants qui réalisent des expertises environnementales dans les domaines de l’eau, du sol et de la biodiversité…” Source: RevenueBase Database · checked Sep 20, 2026
9	Hydroconsult Sarl	Partial evidence	Kervignac, FranceHQ checked Sep 20, 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 20, 2026
10	Gexplore	Indirect evidence	Ludres, FranceHQ checked Sep 20, 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 20, 2026
11	Armasol	Indirect evidence	Réaumont, FranceHQ checked Sep 20, 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 20, 2026
12	Réalités Environnement	Indirect evidence	Trevoux, FranceHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “REALITES Environnement est un bureau d'études indépendant qui intervient pour le compte de collectivités locales, d'industriels et de particuliers sur l'ensemble des études, des…” Source: RevenueBase Database · checked Sep 20, 2026
13	ICSEO	Indirect evidence	Semur En Auxois, FranceHQ checked Sep 20, 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 20, 2026
14	Imageau	Indirect evidence	Nîmes, FranceHQ checked Sep 20, 2026	11-50	31 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
15	Dv2e	Indirect evidence	Vergèze, FranceHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “DV2E est une société d’études et de services dans les domaines de l’eau, du déchet et des sols pour l’agriculture.” Source: RevenueBase Database · checked Sep 20, 2026
16	Cpgf Horizon & Formation	Indirect evidence	Avon, FranceHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “CPGF HORIZON est un bureau d’ingénierie spécialisé en geo-sciences.” Source: RevenueBase Database · checked Sep 20, 2026
17	APC Ingenierie	Indirect evidence	Vigneux-de-bretagne, FranceHQ checked Sep 20, 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 20, 2026
18	Cotrasol	Indirect evidence	Acheres, FranceHQ checked Sep 20, 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 20, 2026
19	Stratégéo Conseil	Indirect evidence	Grigny, FranceHQ checked Sep 20, 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 20, 2026
20	Alise Environnement	Indirect evidence	Saint-jacques-sur-darnétal, FranceHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “ALISE Environnement est un bureau d'études spécialisé dans le domaine de l'environnement.” Source: RevenueBase Database · checked Sep 20, 2026
21	EGEH	Indirect evidence	Limoges, FranceHQ checked Sep 20, 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 20, 2026
22	Antemys	Indirect evidence	Guéreins, FranceHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “ANTEMYS, est reconnue en Rhône-Alpes et au niveau national pour sa compétence, son expérience et sa réactivité dans les domaines de la géotechnique, de l’hydraulique, de…” Source: RevenueBase Database · checked Sep 20, 2026
23	Mica Environnement	Indirect evidence	Bedarieux, FranceHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
24	Emci SAS	Indirect evidence	Le Perray-en-yvelines, FranceHQ checked Sep 20, 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 20, 2026
25	Sicaa Etudes	Indirect evidence	Belleville-sur-vie, FranceHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “SICAA Études est un bureau d’études spécialisé dans l’ingénierie de l’eau et de l’environnement.” Source: RevenueBase Database · checked Sep 20, 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: hydrogeological survey 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 hydrogeological survey companies.
Partial evidence: Its own public description names part of hydrogeological survey companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrogeological survey 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 210 hydrogeological survey companies based in France

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Hydrogeological survey companies based in France at a glance

As of Sep 20, 2026

29.6%Verified-email coverage

12.5Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · Paris

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

134

11-50

51-200

201-500

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 210 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 hydrogeological survey 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 “hydrogeological survey 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 hydrogeological survey 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 hydrogeological survey 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, 779 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 20, 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 hydrogeological survey 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 hydrogeological survey companies are there based in France?

RevenueBase identified 210 hydrogeological survey 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?

Foraco International SA, headquartered in Marseille, tops this list with the largest team on record.

Which city has the most hydrogeological survey companies?

Paris leads with 5 headquartered companies, followed by Orleans (4) and Toulouse (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 779 verified decision-maker contacts tracked across these 210 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 20, 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.