Company lists · Data refreshed September 2026

Top 25 Groundwater treatment plant developers based in France

Name: Groundwater treatment plant developers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 81 companies tracked

RevenueBase identified 81 groundwater treatment plant developers headquartered in France as of September 2026 and tracks 1,015 professional contacts across them, including 249 with verified work emails. Allaire is the largest hub.

This list covers groundwater treatment plant developers 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

81Companies

1,015Contacts tracked

249Verified emails

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The 25 largest groundwater treatment plant developers based in France

Ranked by team size

Top 25 of 81 groundwater treatment plant developers 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 groundwater treatment plant developers: 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	Sources	Indirect evidence	Nanterre, FranceHQ checked Sep 20, 2026	51-200	103 contacts →
	Indirect evidence “Sources est une société Anonyme, indépendante, prospère, en croissance constante et maîtrisée.” Source: RevenueBase Database · checked Sep 20, 2026
2	Forafrance	Indirect evidence	La Mézière, FranceHQ checked Sep 20, 2026	11-50	46 contacts →
	Indirect evidence “Depuis plusieurs décennies FORAFRANCE conçoit, intègre et exploite les installations de traitement des eaux.” Source: RevenueBase Database · checked Sep 20, 2026
3	Hydrea	Indirect evidence	La Croix Saint Ouen, FranceHQ checked Sep 20, 2026	51-200	41 contacts →
	Indirect evidence “HYDREA construit et réhabilite des usines de traitement de l’eau sur tout le territoire français - Des stations d'épurations jusqu'à 8 EH - Des usines d'eau potable jusqu'à 250…” Source: RevenueBase Database · checked Sep 20, 2026
4	Cohin Environnement	Indirect evidence	Versailles, FranceHQ checked Sep 20, 2026	1-10	26 contacts →
	Indirect evidence “COHIN ENVIRONNEMENT conçoit et réalise des stations d'épuration et des systèmes de traitement adaptés aux besoins des industriels et des municipalités avec tous types de process…” Source: RevenueBase Database · checked Sep 20, 2026
5	Jousse	Indirect evidence	Parigne Sur Braye, FranceHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “L'activité de JOUSSE SAS est la conception, la réalisation et la maintenance des installations de Traitement des Eaux (traitement eau potable, traitement des eaux usées, station…” Source: RevenueBase Database · checked Sep 20, 2026
6	Nomado	Partial evidence	Marseille, FranceHQ checked Sep 20, 2026	11-50	23 contacts →
	Partial evidence “Nomado is specialised in the design and construction of compact water treatment units.” Source: RevenueBase Database · checked Sep 20, 2026
7	EPUR	Indirect evidence	FranceHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Conception, construction et maintenance des stations d'épuration et des usines d'eau potable.” Source: RevenueBase Database · checked Sep 20, 2026
8	MEHAT	Indirect evidence	Allaire, FranceHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
9	Fournié ET CIE Scop SA	Indirect evidence	Sauzé-vaussais, FranceHQ checked Sep 20, 2026	51-200	18 contacts →
	Indirect evidence “Spécialisés dans le domaine du pompage et du traitement de l’eau, nous faisons en conception et réalisation des stations de pompage, stations d’épuration, traitements d’eau…” Source: RevenueBase Database · checked Sep 20, 2026
10	Bionest France	Indirect evidence	Villeneuve-les-bouloc, FranceHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Notre mission Bionest France conçoit et développe des solutions performantes et durables de traitement des eaux usées.” Source: RevenueBase Database · checked Sep 20, 2026
11	Aquaprox Group	Partial evidence	Levallois-perret, FranceHQ checked Sep 20, 2026	201-500	15 contacts →
	Partial evidence “AQUAPROX Group is a French owned company that accompanies industries and buildings and in each step of their water treatment facilities.” Source: RevenueBase Database · checked Sep 20, 2026
12	Wangner	Indirect evidence	Magny Les Hameaux, FranceHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Wangner est l'un des principaux acteurs en France du traitement des eaux.” Source: RevenueBase Database · checked Sep 20, 2026
13	Simets	Strong evidence	Les Mureaux, FranceHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong evidence “An independent French company, SIMETS specializes in the design, construction and maintenance of surface treatment plants, water treatment plants, liquid industrial effluent…” Source: RevenueBase Database · checked Sep 20, 2026
14	ATH	Indirect evidence	Perigny, FranceHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “ATH est une PME entièrement indépendante spécialisée dans la conception et la réalisation de station de traitement d’eau clef en main.” Source: RevenueBase Database · checked Sep 20, 2026
15	Seihe MP	Indirect evidence	Saix, FranceHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “SEIHE réalise de nombreuses installations d'eau potable et d'assainissement dans tout le grand Sud-Ouest : Construction de stations de pompage (eaux usées, eau potable, eaux…” Source: RevenueBase Database · checked Sep 20, 2026
16	FLAU	Partial evidence	Mons-en-baroeul, FranceHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “FLAU is 35 years of expertise in the field of water treatment services industries and communities.” Source: RevenueBase Database · checked Sep 20, 2026
17	Biorotor	Partial evidence	Villers La Montagne, FranceHQ checked Sep 20, 2026	11-50	5 contacts →
	Partial evidence “After more than 30 years of experience in designing wastewater treatment systems, BIOROCK is proud to introduce BIOROTOR, a fully automatic, modular wastewater treatment system…” Source: RevenueBase Database · checked Sep 20, 2026
18	Eaukey	Indirect evidence	Selles-sur-cher, FranceHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “Eaukey est un bureau d’étude et d'ingénierie implanté dans la région centre développant des solutions de traitement et recyclage des eaux.” Source: RevenueBase Database · checked Sep 20, 2026
19	Societe Hydro'environnement	Indirect evidence	Quimper, FranceHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “Hydro Environnement est une société innovante composée d’experts en traitement des eaux.” Source: RevenueBase Database · checked Sep 20, 2026
20	Isteep	Indirect evidence	Marseille Cedex 13, FranceHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “ISTEEP is an architecture & planning company based out of HOTEL TECHNOLOGIQUE CS 45 RUE JOLIOT CURIE, 13382 MARSEILLE CEDEX 13, France.” Source: RevenueBase Database · checked Sep 20, 2026
21	ITREN	Indirect evidence	Verdun-sur-garonne, FranceHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Itren est une entreprise spécialisée dans le traitement de l'eau et la Réutilisation des Eaux Usées Traitées (REUT).” Source: RevenueBase Database · checked Sep 20, 2026
22	ECT Eaux Collectives & Traitements	Indirect evidence	La Ciotat, FranceHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Depuis plus de 30 ans, ECT s'impose comme une référence dans la maîtrise des risques liés à l'eau, à travers 2 métiers complémentaires : le traitement des eaux et la protection…” Source: RevenueBase Database · checked Sep 20, 2026
23	Ecoveo	Indirect evidence	Narbonne, FranceHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Ecoveo est une société spécialisée dans la fourniture et l’installation de micro stations d’épuration et filtres compacts sur le marché de l’assainissement non-collectif sur le…” Source: RevenueBase Database · checked Sep 20, 2026
24	Société D'ingénierie Nature ET Technique, S I N T	Indirect evidence	La Chapelle Du Mont Du Chat, FranceHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Société d'Ingénierie Nature et Technique, S I N T is a biotechnology company based out of CHEF LIEU, LA CHAPELLE DU MONT DU CHAT, France.” Source: RevenueBase Database · checked Sep 20, 2026
25	Aseptic	Indirect evidence	Saint-ismier, FranceHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Bienvenue chez Aseptic, expert en solutions de traitement d'eau et d'effluents depuis 1995.” 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: groundwater treatment plant developers. 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 groundwater treatment plant developers.
Partial evidence: Its own public description names part of groundwater treatment plant developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name groundwater treatment plant developers. 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 81 groundwater treatment plant developers based in France

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Groundwater treatment plant developers based in France at a glance

As of Sep 20, 2026

24.5%Verified-email coverage

12.5Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Allaire

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

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 81 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 groundwater treatment plant developers, 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 “groundwater treatment plant developers”. 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 groundwater treatment plant developers), 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 groundwater treatment plant developers, 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, 249 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 groundwater treatment plant developers, 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 groundwater treatment plant developers are there based in France?

RevenueBase identified 81 groundwater treatment plant developers 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?

Sources, headquartered in Nanterre, tops this list with the largest team on record.

Which city has the most groundwater treatment plant developers?

Allaire leads with 2 headquartered companies, followed by Ancenis (1) and Baie-Mahault (1).

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 249 verified decision-maker contacts tracked across these 81 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.