Company lists · Data refreshed September 2026

Top 25 Water treatment system installers based in France

Name: Water treatment system installers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 179 companies tracked

RevenueBase identified 179 water treatment system installers headquartered in France as of September 2026 and tracks 2,438 professional contacts across them, including 631 with verified work emails. Seclin is the largest hub.

This list covers water treatment system installers 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 22, 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 22, 2026 86% judged on-target in blind review

179Companies

2,438Contacts tracked

631Verified emails

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The 25 largest water treatment system installers based in France

Ranked by team size

Top 25 of 179 water treatment system installers based in France, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to water treatment system installers: 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	Culligan France	Indirect evidence	Versailles, FranceHQ checked Sep 22, 2026	1,001-5,000	607 contacts →
	Indirect evidence “Spécialiste du traitement de l’eau depuis plus de 80 ans, Culligan apporte chaque jour une eau de qualité aux particuliers, aux entreprises et aux collectivités.” Source: RevenueBase Database · checked Sep 22, 2026
2	BWT France	Strong evidence	Saint - Denis, FranceHQ checked Sep 22, 2026	501-1,000	567 contacts →
	Strong evidence “BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.” Source: RevenueBase Database · checked Sep 22, 2026
3	Odyssee Environnement Water Treatment	Partial evidence	Requeil, FranceHQ checked Sep 22, 2026	51-200	101 contacts →
	Partial 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 22, 2026
4	Aquaged	Indirect evidence	Mitry-mory, FranceHQ checked Sep 22, 2026	51-200	56 contacts →
	Indirect evidence “AQUAGED, société du Groupe John Cockerill est spécialisée dans le traitement de l’eau depuis de nombreuses années.” Source: RevenueBase Database · checked Sep 22, 2026
5	Chemdoc Water Technologies	Strong evidence	Clermont L'hérault, FranceHQ checked Sep 22, 2026	11-50	44 contacts →
	Strong evidence “At CHEMDOC our specialty is to design and manufacture high-tech equipment for the filtration, purification and demineralization of industrial water and for the treatment of…” Source: RevenueBase Database · checked Sep 22, 2026
6	Groupe Orizon	Indirect evidence	Gimont, FranceHQ checked Sep 22, 2026	51-200	39 contacts →
	Indirect evidence “Orizon propose une offre de service innovante et maîtrisée sur toute la chaîne de traitement de l’eau : produits, matériels, services.” Source: RevenueBase Database · checked Sep 22, 2026
7	Largier Technologie	Indirect evidence	Vals Les Bains, FranceHQ checked Sep 22, 2026	51-200	31 contacts →
	Indirect evidence “LARGIER TECHNOLOGIE is a construction company based out of RUE DU VOLTOUR, VALS LES BAINS, France.” Source: RevenueBase Database · checked Sep 22, 2026
8	Aloes Traitement DES Eaux	Indirect evidence	Seclin, FranceHQ checked Sep 22, 2026	11-50	27 contacts →
	Indirect evidence “ALOES TRAITEMENT DES EAUX is a wholesale company based out of ZONE A 12 RUE DE LA POINTE, SECLIN, France.” Source: RevenueBase Database · checked Sep 22, 2026
9	Aqua-Technologie	Indirect evidence	Nanterre, FranceHQ checked Sep 22, 2026	11-50	27 contacts →
	Indirect evidence “La société Aqua-Technologie, membre du Groupe aquasphère, est spécialisée dans « l’affinage de l’eau » ou le traitement au point d’utilisation.” Source: RevenueBase Database · checked Sep 22, 2026
10	Ecowater Systems France	Partial evidence	Rueil-malmaison, FranceHQ checked Sep 22, 2026	11-50	26 contacts →
	Partial evidence “EcoWater Systems France, spécialiste d'appareils de traitement de l'eau, est le 1er fabricant mondial d'adoucisseurs d'eau à usage domestique.” Source: RevenueBase Database · checked Sep 22, 2026
11	Jousse	Indirect evidence	Parigne Sur Braye, FranceHQ checked Sep 22, 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 22, 2026
12	Nomado	Strong evidence	Marseille, FranceHQ checked Sep 22, 2026	11-50	23 contacts →
	Strong evidence “Nomado is specialised in the design and construction of compact water treatment units.” Source: RevenueBase Database · checked Sep 22, 2026
13	Assisteaux	Indirect evidence	Couhe - Valence En Poitou, FranceHQ checked Sep 22, 2026	11-50	23 contacts →
	Indirect evidence “Créée en 1972, ASSISTEAUX est une PME d’une vingtaine de personnes toutes mobilisées pour un seul objectif : “Satisfaire notre clientèle par des produits et des services de…” Source: RevenueBase Database · checked Sep 22, 2026
14	Qualleo Environnement	Indirect evidence	Colomiers, FranceHQ checked Sep 22, 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 22, 2026
15	DAQUA	Indirect evidence	Les Sorinières, FranceHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “DAQUA est spécialisée dans la filtration, le stockage et le traitement de l’eau.” Source: RevenueBase Database · checked Sep 22, 2026
16	Talassa Purewater	Indirect evidence	Brignais, FranceHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “TALASSA est un fabricant de matériels de traitement de l'eau pour des applications domestiques, industrielles et tertiaires.” Source: RevenueBase Database · checked Sep 22, 2026
17	Aquaprox Group	Strong evidence	Levallois-perret, FranceHQ checked Sep 22, 2026	201-500	15 contacts →
	Strong 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 22, 2026
18	TNM	Indirect evidence	Grasse, FranceHQ checked Sep 22, 2026	1-10	14 contacts →
	Indirect evidence “TnM est une entreprise du sud de la France dont l'objectif est de vous accompagner pour que, vous aussi, vous puissiez avoir une eau que vous aimez vraiment : sans calcaire et…” Source: RevenueBase Database · checked Sep 22, 2026
19	Niortaise DES Eaux	Indirect evidence	Chauray, FranceHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “La Niortaise Des Eaux est spécialiste dans le traitement de l'eau depuis sa création en 1983.” Source: RevenueBase Database · checked Sep 22, 2026
20	Eautech Service	Indirect evidence	Beauvais, FranceHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “Depuis près de 20 ans, EAUTECH Service met son savoir-faire et sa technicité à votre disposition dans les secteurs d'activités suivants : • Traitement d'eau • Adoucisseur •…” Source: RevenueBase Database · checked Sep 22, 2026
21	JBS Piscines	Partial evidence	Saint-pierre-en-faucigny, FranceHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “L’entreprise JBS Piscines est spécialisée dans la conception et la réalisation de systèmes de traitement d’eau de piscine.” Source: RevenueBase Database · checked Sep 22, 2026
22	Kinetico France	Indirect evidence	Osny, FranceHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “Notre passion, améliorer votre quotidien en développant des solutions pour une eau meilleure".” Source: RevenueBase Database · checked Sep 22, 2026
23	Efiltec Solutions	Strong evidence	Cormeilles En Parisis, FranceHQ checked Sep 22, 2026	11-50	11 contacts →
	Strong evidence “Assembling and distribution of filtration and decholoration solutions for water treatment (Water treatment, medical or industrial applications.) as well as industrial filtration.” Source: RevenueBase Database · checked Sep 22, 2026
24	Groupe Amethys	Indirect evidence	Seclin, FranceHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “Depuis plus de 40 ans, le Groupe Amethys accompagne les professionnels dans la gestion, l’optimisation et la pérennisation de leurs réseaux d’eau.” Source: RevenueBase Database · checked Sep 22, 2026
25	PWG France	Indirect evidence	Marne La Vallee Cedex 2, FranceHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “L’eau est au cœur de notre vie depuis la nuit des temps.” Source: RevenueBase Database · checked Sep 22, 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: water treatment system installers. 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 water treatment system installers.
Partial evidence: Its own public description names part of water treatment system installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water treatment system installers. 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 179 water treatment system installers based in France

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Water treatment system installers based in France at a glance

As of Sep 22, 2026

25.9%Verified-email coverage

13.6Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Seclin

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

501-1,000

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 179 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 water treatment system installers, 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 “water treatment system installers”. 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 water treatment system installers), 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 water treatment system installers, 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, 631 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 22, 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 water treatment system installers, 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 water treatment system installers are there based in France?

RevenueBase identified 179 water treatment system installers 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?

Culligan France, headquartered in Versailles, tops this list with the largest team on record.

Which city has the most water treatment system installers?

Seclin leads with 3 headquartered companies, followed by Antibes (2) and Baie-Mahault (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 631 verified decision-maker contacts tracked across these 179 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 22, 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.