Company lists · Data refreshed September 2026

Top 25 Hydrogeological consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 575 companies tracked

RevenueBase identified 575 hydrogeological consulting firms headquartered in France as of September 2026 and tracks 8,307 professional contacts across them, including 3,231 with verified work emails and 117 with mobile numbers. Paris is the largest hub.

This list covers hydrogeological consulting firms 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 3, 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 3, 2026 86% judged on-target in blind review

575Companies

8,307Contacts tracked

3,231Verified emails

117Mobile numbers

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The 25 largest hydrogeological consulting firms based in France

Ranked by team size

Top 25 of 575 hydrogeological consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to hydrogeological consulting firms: 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	Antea Group - France	Indirect evidence	Olivet, FranceHQ checked Sep 3, 2026	1,001-5,000	773 contacts →
	Indirect evidence “Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Source: RevenueBase Database · checked Sep 3, 2026
2	Groupe Géotec	Indirect evidence	Quetigny, FranceHQ checked Sep 3, 2026	501-1,000	445 contacts →
	Indirect evidence “Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Source: RevenueBase Database · checked Sep 3, 2026
3	Neo2	Indirect evidence	Levallois-perret, FranceHQ checked Sep 3, 2026	501-1,000	382 contacts →
	Indirect evidence “NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Source: RevenueBase Database · checked Sep 3, 2026
4	ECR Environnement	Indirect evidence	Larmor Plage, FranceHQ checked Sep 3, 2026	201-500	377 contacts →
	Indirect evidence “ECR Environnement est un bureau d’études et de conseils en ingénierie des sols, pluridisciplinaire et indépendant qui accompagne depuis les particuliers et professionnels dans…” Source: RevenueBase Database · checked Sep 3, 2026
5	Altereo	Indirect evidence	Venelles, FranceHQ checked Sep 3, 2026	51-200	222 contacts →
	Indirect evidence “Awakening Environmental Smartness.” Source: RevenueBase Database · checked Sep 3, 2026
6	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	141 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 3, 2026
7	Geotechnique SAS	Indirect evidence	Avignon, FranceHQ checked Sep 3, 2026	51-200	134 contacts →
	Indirect evidence “GEOTECHNIQUE SAS - Sciences de la Terre est un bureau d'études en ingénierie géotechnique qui apporte son savoir-faire à l'ensemble des protagonistes intervenant dans un projet de…” Source: RevenueBase Database · checked Sep 3, 2026
8	Artifex	Indirect evidence	Albi, FranceHQ checked Sep 3, 2026	51-200	124 contacts →
	Indirect evidence “ARTIFEX, une société de SOCOTEC est un bureau d’ingénierie et de conseil en environnement, créé en janvier 1983 et basé à Albi dans le Tarn.” Source: RevenueBase Database · checked Sep 3, 2026
9	Soler IDE	Indirect evidence	Massy, FranceHQ checked Sep 3, 2026	51-200	115 contacts →
	Indirect evidence “SOLER IDE est l’un des leaders français du Conseil en Environnement.” Source: RevenueBase Database · checked Sep 3, 2026
10	Semofi	Indirect evidence	Villeneuve-le-roi, FranceHQ checked Sep 3, 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 3, 2026
11	PCM Ingenierie	Indirect evidence	Saint-Mande, FranceHQ checked Sep 3, 2026	51-200	95 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 3, 2026
12	Ingetec Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	11-50	90 contacts →
	Indirect evidence “Parce que le développement durable des territoires sur lesquels nous opérons est notre raison d’être, les experts d’Ingetec s’investissent chaque jour pour l’environnement…” Source: RevenueBase Database · checked Sep 3, 2026
13	Aquabio	Indirect evidence	Saint-germain Du Puch, FranceHQ checked Sep 3, 2026	51-200	82 contacts →
	Indirect evidence “AQUABIO est un bureau d'études indépendant dont le métier est de produire, valoriser, expertiser des données hydrobiologiques.” Source: RevenueBase Database · checked Sep 3, 2026
14	Envisol	Indirect evidence	La Tour Du Pin, FranceHQ checked Sep 3, 2026	51-200	70 contacts →
	Indirect evidence “ENVISOL est une entreprise spécialisée dans le conseil et l’ingénierie offrant des prestations dans le domaine des sites et sols pollués.” Source: RevenueBase Database · checked Sep 3, 2026
15	Ségic Ingénierie	Indirect evidence	Verrières-le-buisson, FranceHQ checked Sep 3, 2026	51-200	64 contacts →
	Indirect evidence “SÉGIC Ingénierie est un acteur fort du Conseil dans les domaines de l’Environnement et des Infrastructures.” Source: RevenueBase Database · checked Sep 3, 2026
16	Hydretudes	Indirect evidence	Argonay, FranceHQ checked Sep 3, 2026	51-200	61 contacts →
	Indirect evidence “HYDRETUDES est un bureau d’études spécialisé dans l’ingénierie de l’eau, des risques naturels et de l’environnement.” Source: RevenueBase Database · checked Sep 3, 2026
17	Dejante Infra	Indirect evidence	Malemort, FranceHQ checked Sep 3, 2026	51-200	59 contacts →
	Indirect evidence “Nous regroupons un panel de 12 activités spécifiques et complémentaires pour vous accompagner dans la réalisation de vos projets en toute autonomie.” Source: RevenueBase Database · checked Sep 3, 2026
18	Geolia	Indirect evidence	Morangis, FranceHQ checked Sep 3, 2026	51-200	58 contacts →
	Indirect evidence “Bureau d'Etudes Géotechniques, Hydrogéologie et Sites et Sols Pollués, Ingénierie des sols et fondations.” Source: RevenueBase Database · checked Sep 3, 2026
19	Prolog Ingenierie	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	56 contacts →
	Partial evidence “PROLOG INGENIERIE is a consulting engineering firm at the forefront of water management and remote-controlled systems, committed to enhancing water quality and environmental…” Source: RevenueBase Database · checked Sep 3, 2026
20	KAÉNA	Indirect evidence	Saint Vincent De Mercuze, FranceHQ checked Sep 3, 2026	51-200	54 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 3, 2026
21	Aquascop Sarl	Indirect evidence	Beaucouzé, FranceHQ checked Sep 3, 2026	51-200	53 contacts →
	Indirect evidence “Aquascop est un bureau d´études indépendant spécialisé dans l´étude des milieux aquatiques, implantés sur 5 agences en France métropolitaine (Angers, Montpellier, Toulouse, Nancy…” Source: RevenueBase Database · checked Sep 3, 2026
22	Sage Ingenierie	Indirect evidence	Gières, FranceHQ checked Sep 3, 2026	51-200	51 contacts →
	Indirect evidence “La Société Alpine Géotechnique (SAGE Ingénierie) est un bureau d'études de sols indépendant (SAS) dont les services couvrent toute l’ingénierie géotechnique spécifique aux…” Source: RevenueBase Database · checked Sep 3, 2026
23	Envolis	Indirect evidence	Gujan-Mestras, FranceHQ checked Sep 3, 2026	11-50	51 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 3, 2026
24	Amodiag Environnement	Indirect evidence	Prouvy, FranceHQ checked Sep 3, 2026	51-200	45 contacts →
	Indirect evidence “AMÉLIORER LE MILIEU NATUREL ET LA QUALITÉ DE VIE DES USAGERS PAR LE BIAIS DU TRAITEMENT DE L'EAU POTABLE ET DES EAUX USÉES Expert du monde de l’eau, des déchets et des…” Source: RevenueBase Database · checked Sep 3, 2026
25	SEIRI	Indirect evidence	Montpellier, FranceHQ checked Sep 3, 2026	11-50	43 contacts →
	Indirect evidence “Réaliser vos projets en toute SEIRInité!” Source: RevenueBase Database · checked Sep 3, 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 consulting firms. 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 consulting firms.
Partial evidence: Its own public description names part of hydrogeological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrogeological consulting firms. 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 575 hydrogeological consulting firms based in France

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Hydrogeological consulting firms based in France at a glance

As of Sep 3, 2026

38.9%Verified-email coverage

1.4%Mobile-number coverage

14.4Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · Paris

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

375

11-50

144

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

25631–60

1,94661–90

1,02990–180

0180+

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 consulting firms, 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 consulting firms”. 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 consulting firms), 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 consulting firms, 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, 3,231 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 3, 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.

Hydrogeological consulting firms by metro

Hydrogeological consulting firms in Paris36

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 consulting firms, 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 consulting firms are there based in France?

RevenueBase identified 575 hydrogeological consulting firms 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?

Antea Group - France, headquartered in Colmar, tops this list with the largest team on record.

Which city has the most hydrogeological consulting firms?

Paris leads with 36 headquartered companies, followed by Lyon (12) and Montpellier (9).

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 3,231 verified decision-maker contacts tracked across these 575 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 3, 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.