Company lists · Data refreshed September 2026

Top 25 Municipal wastewater treatment contractors based in France

Name: Municipal wastewater treatment contractors based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 167 companies tracked

RevenueBase identified 167 municipal wastewater treatment contractors headquartered in France as of September 2026 and tracks 2,163 professional contacts across them, including 642 with verified work emails. Ancenis is the largest hub.

This list covers municipal wastewater treatment contractors 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 17, 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 17, 2026 86% judged on-target in blind review

167Companies

2,163Contacts tracked

642Verified emails

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The 25 largest municipal wastewater treatment contractors based in France

Ranked by team size

Top 25 of 167 municipal wastewater treatment contractors based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to municipal wastewater treatment contractors: 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	OVIVE	Strong evidence	Seclin, FranceHQ checked Sep 17, 2026	51-200	155 contacts →
	Strong evidence “Traitement des Eaux Industrielles et Lixiviats Location de Matériel et Prestations d'Exploitation Industry wastewater and Leachate treatment Equipment rental and operation…” Source: RevenueBase Database · checked Sep 17, 2026
2	Aqualter	Indirect evidence	Chartres, FranceHQ checked Sep 17, 2026	201-500	123 contacts →
	Indirect evidence “Première entreprise du secteur de l’eau indépendante des majors, AQUALTER développe depuis 50 ans une expertise dans la production et la distribution d’eau potable, la collecte et…” Source: RevenueBase Database · checked Sep 17, 2026
3	Sources	Indirect evidence	Nanterre, FranceHQ checked Sep 17, 2026	51-200	103 contacts →
	Indirect evidence “Sources est une société Anonyme, indépendante, prospère, en croissance constante et maîtrisée.” Source: RevenueBase Database · checked Sep 17, 2026
4	Odyssee Environnement Water Treatment	Indirect evidence	Requeil, FranceHQ checked Sep 17, 2026	51-200	101 contacts →
	Indirect evidence “Since 2006, ODYSSEE Environnement has been committed to ethical and sustainable water management in the service of industrial performance.” Source: RevenueBase Database · checked Sep 17, 2026
5	Régie DES Eaux DE Montpellier Méditerranée Métropole	Indirect evidence	Montpellier, FranceHQ checked Sep 17, 2026	51-200	88 contacts →
	Indirect evidence “La Régie des Eaux de Montpellier Méditerranée Métropole est une entreprise publique, qui assure depuis le 1er janvier 2016, la gestion de l'eau potable et de l'eau brute.” Source: RevenueBase Database · checked Sep 17, 2026
6	SIMOP	Partial evidence	Sainte-mere-eglise, FranceHQ checked Sep 17, 2026	51-200	61 contacts →
	Partial evidence “Simop has been designing, manufacturing and distributing wastewater and stormwater management solutions for 40 years.” Source: RevenueBase Database · checked Sep 17, 2026
7	Nijhuis Saur Industries France	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 17, 2026	n/a	57 contacts →
	Indirect evidence “De la production d'eau industrielle au traitement des effluents et leur réutilisation, et avec ses propres équipes opérationnelles réparties sur le territoire national, Nijhuis…” Source: RevenueBase Database · checked Sep 17, 2026
8	Forafrance	Indirect evidence	La Mézière, FranceHQ checked Sep 17, 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 17, 2026
9	Hydrea	Indirect evidence	La Croix Saint Ouen, FranceHQ checked Sep 17, 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 17, 2026
10	Biotrade France	Indirect evidence	Portet-sur-garonne, FranceHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Société française basée à Toulouse, BIOTRADE conçoit, fabrique et commercialise depuis 1996 des équipements de prétraitement, d’aération et de mélange pour répondre aux différents…” Source: RevenueBase Database · checked Sep 17, 2026
11	Sagéau	Indirect evidence	Landiras, FranceHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “Sagéau – Réseau national de franchises spécialisé en assainissement non collectif et gestion d'eau de pluie.” Source: RevenueBase Database · checked Sep 17, 2026
12	Cohin Environnement	Partial evidence	Versailles, FranceHQ checked Sep 17, 2026	1-10	26 contacts →
	Partial 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 17, 2026
13	Jousse	Indirect evidence	Parigne Sur Braye, FranceHQ checked Sep 17, 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 17, 2026
14	Siarp 95	Indirect evidence	Pontoise, FranceHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “Le Syndicat Intercommunautaire pour l'Assainissement de la Région de Cergy-Pontoise et du Vexin (SIARP) s'étend sur un territoire 43 communes d’environ 240 habitants.” Source: RevenueBase Database · checked Sep 17, 2026
15	Nomado	Partial evidence	Marseille, FranceHQ checked Sep 17, 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 17, 2026
16	EPUR	Indirect evidence	FranceHQ checked Sep 17, 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 17, 2026
17	MEHAT	Indirect evidence	Allaire, FranceHQ checked Sep 17, 2026	51-200	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Atlantique Industrie	Indirect evidence	Ancenis, FranceHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Atlantique industrie est une entreprise spécialisée dans le traitement des eaux usées provenant des industries.” Source: RevenueBase Database · checked Sep 17, 2026
19	Qualleo Environnement	Indirect evidence	Colomiers, FranceHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Spécialisée dans le traitement d’eau, Qualléo s’inscrit dans les opérations de fourniture de matériel d’équipement de traitement d’eau (adoucisseur, filtration, osmose inverse…” Source: RevenueBase Database · checked Sep 17, 2026
20	Sivom Mulhouse SUD Alsace	Indirect evidence	Mulhouse, FranceHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Le Sivom Mulhouse Sud Alsace (syndicat mixte à la carte) est un établissement public local.” Source: RevenueBase Database · checked Sep 17, 2026
21	Fournié ET CIE Scop SA	Indirect evidence	Sauzé-vaussais, FranceHQ checked Sep 17, 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 17, 2026
22	EJ Énergies	Indirect evidence	Geispolsheim, FranceHQ checked Sep 17, 2026	51-200	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Bionest France	Indirect evidence	Villeneuve-les-bouloc, FranceHQ checked Sep 17, 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 17, 2026
24	Sapoval, Cleantech Expert	Indirect evidence	Albi, FranceHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “SAPOVAL is an expert in innovative solutions for efficient effluent and waste management.” Source: RevenueBase Database · checked Sep 17, 2026
25	Aquaprox Group	Partial evidence	Levallois-perret, FranceHQ checked Sep 17, 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 17, 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: municipal wastewater treatment contractors. 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 municipal wastewater treatment contractors.
Partial evidence: Its own public description names part of municipal wastewater treatment contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal wastewater treatment contractors. 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 167 municipal wastewater treatment contractors based in France

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Municipal wastewater treatment contractors based in France at a glance

As of Sep 17, 2026

29.7%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Ancenis

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 167 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 municipal wastewater treatment contractors, 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 “municipal wastewater treatment contractors”. 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 municipal wastewater treatment contractors), 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 municipal wastewater treatment contractors, 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, 642 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 17, 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 municipal wastewater treatment contractors, 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 municipal wastewater treatment contractors are there based in France?

RevenueBase identified 167 municipal wastewater treatment contractors 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?

OVIVE, headquartered in Seclin, tops this list with the largest team on record.

Which city has the most municipal wastewater treatment contractors?

Ancenis leads with 3 headquartered companies, followed by Chavanod (2) and Montpellier (2).

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 642 verified decision-maker contacts tracked across these 167 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 17, 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.