Company lists · Data refreshed September 2026

Top 25 Hydrological consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 392 companies tracked

RevenueBase identified 392 company matches for hydrological consulting firms associated with France as of September 2026 and tracks 5,058 professional contacts across them, including 2,022 with verified work emails. Paris is the largest hub.

This list covers company matches for hydrological consulting 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 September 28, 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 Sep 28, 2026 How this list was built

392Companies

5,058Contacts tracked

2,022Verified emails

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The 25 largest hydrological consulting firms based in France

Ranked by team size

Top 25 of 392 company matches for hydrological consulting firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Antea Group - France	Exact match	Olivet, FranceHQ recorded Sep 28, 2026	1,001-5,000	737 contacts →
	Exact match “Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Altereo	Exact match	Venelles, FranceHQ recorded Sep 28, 2026	51-200	203 contacts →
	Exact match “Awakening Environmental Smartness.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Setec Énergie Environnement	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	143 contacts →
	Exact match “Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	BRL Groupe	Exact match	Nîmes Cedex 5, FranceHQ recorded Sep 28, 2026	501-1,000	142 contacts →
	Exact match “A travers ses trois métiers principaux d’aménageur, d’ingénierie et d’exploitation de grands ouvrages hydrauliques, le Groupe BRL (5 sociétés (1), 101,79 M€ de CA, 804 salariés en…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Artifex	Exact match	Albi, FranceHQ recorded Sep 28, 2026	51-200	123 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Semofi	Exact match	Villeneuve-le-roi, FranceHQ recorded Sep 28, 2026	51-200	114 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Creocean	Exact match	La Rochelle, FranceHQ recorded Sep 28, 2026	51-200	90 contacts →
	Exact match “Notre expertise au service des océans et des littoraux : Notre bureau d'études accompagne les projets sur l’ensemble du littoral français et à l’international, avec une expertise…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Ingetec Ingénierie	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	88 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	DCI Environnement	Exact match	Quimper, FranceHQ recorded Sep 28, 2026	51-200	82 contacts →
	Exact match “DCI Environnement – Bureau d’études indépendant Depuis 2003, DCI Environnement accompagne les maîtres d’ouvrage et les collectivités dans leurs projets d’aménagement urbain, de…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Aquabio	Exact match	Saint-germain Du Puch, FranceHQ recorded Sep 28, 2026	51-200	81 contacts →
	Exact match “AQUABIO est un bureau d'études indépendant dont le métier est de produire, valoriser, expertiser des données hydrobiologiques.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	OGI	Exact match	Montreuil, FranceHQ recorded Sep 28, 2026	51-200	64 contacts →
	Exact match “OGI est un bureau d'études spécialisé en aménagement d’espaces publics.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Hydretudes	Exact match	Argonay, FranceHQ recorded Sep 28, 2026	51-200	64 contacts →
	Exact match “HYDRETUDES est un bureau d’études spécialisé dans l’ingénierie de l’eau, des risques naturels et de l’environnement.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Geolia	Exact match	Morangis, FranceHQ recorded Sep 28, 2026	51-200	58 contacts →
	Exact match “Bureau d'Etudes Géotechniques, Hydrogéologie et Sites et Sols Pollués, Ingénierie des sols et fondations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Prolog Ingenierie	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	56 contacts →
	Exact match “PROLOG INGENIERIE is a consulting engineering firm at the forefront of water management and remote-controlled systems, committed to enhancing water quality and environmental…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	GES	Exact match	Noyal-sur-vilaine, FranceHQ recorded Sep 28, 2026	11-50	53 contacts →
	Exact match “GES est une société spécialisée dans la recherche, les études et le conseil sur l'eau, l'environnement et l'industrie.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Aquascop Sarl	Exact match	Beaucouzé, FranceHQ recorded Sep 28, 2026	51-200	53 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Envolis	Exact match	Gujan-mestras, FranceHQ recorded Sep 28, 2026	11-50	52 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	SEIRI	Exact match	Montpellier, FranceHQ recorded Sep 28, 2026	11-50	43 contacts →
	Exact match “Réaliser vos projets en toute SEIRInité!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	CDES	Exact match	Luzancy, FranceHQ recorded Sep 28, 2026	51-200	42 contacts →
	Exact match “CDES, c’est 100 experts engagés et passionnés, qui mettent chaque jour leur savoir-faire au service de la préservation et la valorisation des milieux aquatiques.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Sepia Conseils	Exact match	Paris, FranceHQ recorded Sep 28, 2026	11-50	42 contacts →
	Exact match “SEPIA Conseils accompagne depuis plus de 30 ans les acteurs de la gestion de l’eau et de l’aménagement du territoire vers des solutions durables, sobres et résilientes face aux…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Réalités Environnement	Exact match	Trevoux, FranceHQ recorded Sep 28, 2026	11-50	35 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	ICSEO	Exact match	Semur En Auxois, FranceHQ recorded Sep 28, 2026	51-200	35 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 · Sep 28, 2026 · View company records in RevenueBase
23	Cofrepeche	Exact match	Paris, FranceHQ recorded Sep 28, 2026	n/a	31 contacts →
	Exact match “COFREPECHE, société anonyme à conseil d'administration, a été créée en 1980 par des professionnels du monde maritime.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Osgapi	Exact match	Nimes, FranceHQ recorded Sep 28, 2026	11-50	24 contacts →
	Exact match “OSGAPI est un bureau d'étude spécialisé dans la gestion du risque d'inondation assistant les collectivités territoriales mais aussi les particuliers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Ecofilae	Exact match	Montpellier, FranceHQ recorded Sep 28, 2026	11-50	23 contacts →
	Exact match “Spécialiste de la réutilisation des eaux (REUSE), Ecofilae, société pionnière et indépendante de conseil et d’ingénierie, propose depuis 2009 un accompagnement à 360° auprès des…” Recorded in the RevenueBase company graph · Sep 28, 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 “hydrological consulting 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 392 hydrological consulting firms based in France

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Hydrological consulting firms based in France at a glance

As of Sep 28, 2026

40.0%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

264

11-50

51-200

201-500

501-1,000

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 392 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 “hydrological consulting 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 2,022 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 September 28, 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 “hydrological consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrological consulting firms are there based in France?

RevenueBase identified 392 company matches for hydrological consulting firms associated with France as of September 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?

Antea Group - France tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydrological consulting firms?

Paris leads with 24 company records, followed by Lyon (9) and Toulouse (8).

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 2,022 professional contacts with verified work emails tracked across these 392 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 September 28, 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.