Company lists · Data refreshed September 2026

Top 25 Water desalination engineering firms based in France

Name: Water desalination engineering firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 112 companies tracked

RevenueBase identified 112 water desalination engineering firms headquartered in France as of September 2026 and tracks 1,803 professional contacts across them, including 422 with verified work emails. Paris is the largest hub.

This list covers water desalination engineering 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 19, 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 19, 2026 86% judged on-target in blind review

112Companies

1,803Contacts tracked

422Verified emails

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The 25 largest water desalination engineering firms based in France

Ranked by team size

Top 25 of 112 water desalination engineering firms based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water desalination engineering 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	Sources	Indirect evidence	Nanterre, FranceHQ checked Sep 19, 2026	51-200	103 contacts →
	Indirect evidence “Sources est une société Anonyme, indépendante, prospère, en croissance constante et maîtrisée.” Source: RevenueBase Database · checked Sep 19, 2026
2	Odyssee Environnement Water Treatment	Partial evidence	Requeil, FranceHQ checked Sep 19, 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 19, 2026
3	Adionics	Partial evidence	Les Ulis, FranceHQ checked Sep 19, 2026	11-50	66 contacts →
	Partial evidence “Adionics is a privated company created in 2012 after five years of research with the ambition of becoming a leading technology provider in saline water valorization.” Source: RevenueBase Database · checked Sep 19, 2026
4	Nijhuis Saur Industries France	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 19, 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 19, 2026
5	Aquaged	Indirect evidence	Mitry-mory, FranceHQ checked Sep 19, 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 19, 2026
6	Forafrance	Indirect evidence	La Mézière, FranceHQ checked Sep 19, 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 19, 2026
7	Chemdoc Water Technologies	Partial evidence	Clermont L'hérault, FranceHQ checked Sep 19, 2026	11-50	44 contacts →
	Partial 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 19, 2026
8	Watera Ex-Osmosun	Partial evidence	Gellainville, FranceHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “OSMOSUN specializes in innovative water treatment solutions using renewable energy.” Source: RevenueBase Database · checked Sep 19, 2026
9	Jousse	Indirect evidence	Parigne Sur Braye, FranceHQ checked Sep 19, 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 19, 2026
10	Aqua 2000 FR	Indirect evidence	Marly, FranceHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “AQUA c'est une meilleure expérience avec nos adoucisseurs d'eau qui sont : Sans électricité Plus précis Plus écologique Plus économique!” Source: RevenueBase Database · checked Sep 19, 2026
11	Ecofilae	Indirect evidence	Montpellier, FranceHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
12	Nomado	Partial evidence	Marseille, FranceHQ checked Sep 19, 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 19, 2026
13	EPUR	Indirect evidence	FranceHQ checked Sep 19, 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 19, 2026
14	Qualleo Environnement	Indirect evidence	Colomiers, FranceHQ checked Sep 19, 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 19, 2026
15	Bionest France	Indirect evidence	Villeneuve-les-bouloc, FranceHQ checked Sep 19, 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 19, 2026
16	Talassa Purewater	Indirect evidence	Brignais, FranceHQ checked Sep 19, 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 19, 2026
17	Coldep	Partial evidence	Lattes, FranceHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “We are changing the treatment of wastewater and/or salt water.” Source: RevenueBase Database · checked Sep 19, 2026
18	Aquaprox Group	Partial evidence	Levallois-perret, FranceHQ checked Sep 19, 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 19, 2026
19	Seawards, Groupe Seanergy	Indirect evidence	Marseille, FranceHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Dessalement d'eau de mer grâce à une technologie de rupture, la cryo-cristallisation, qui consomme peu d'énergie (50% d'économie par rapport aux meilleures technologies actuelles)…” Source: RevenueBase Database · checked Sep 19, 2026
20	Niortaise DES Eaux	Indirect evidence	Chauray, FranceHQ checked Sep 19, 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 19, 2026
21	PWG France	Indirect evidence	Marne La Vallee Cedex 2, FranceHQ checked Sep 19, 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 19, 2026
22	Aquapur	Indirect evidence	Vaulx-En-Velin, FranceHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Conseil Général Maintenance Européen (abrévié COGEM) est le spécialiste du traitement de l’eau haut de gamme en France depuis 40 ans.” Source: RevenueBase Database · checked Sep 19, 2026
23	France EAU	Indirect evidence	Lormont, FranceHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Spécialiste de la purification de l'eau pour les laboratoires comme pour les industries, France Eau conseille, conçoit, réalise et entretient les solutions de TRAITEMENT D'EAU de…” Source: RevenueBase Database · checked Sep 19, 2026
24	Adh2oc Industrial	Partial evidence	Chérisy, FranceHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “ADH2OC INDUSTRIAL is specialized in the design and manufacturing of water treatment equipment : Reverse Osmosis, Ultrafiltration, Electrodeionization (EDI), Softening and…” Source: RevenueBase Database · checked Sep 19, 2026
25	Ecoplage	Indirect evidence	Sainte-luce-sur-loire, FranceHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Ecoplage's mission is to provide municipalities, tourist operators and industries a complete turnkey installation and long term solution which combines the protection of beaches…” Source: RevenueBase Database · checked Sep 19, 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 desalination engineering 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 water desalination engineering firms.
Partial evidence: Its own public description names part of water desalination engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water desalination engineering 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 112 water desalination engineering firms based in France

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Water desalination engineering firms based in France at a glance

As of Sep 19, 2026

23.4%Verified-email coverage

16.1Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 112 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 desalination engineering 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 “water desalination engineering 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 water desalination engineering 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 water desalination engineering 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, 422 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 19, 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 desalination engineering 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 water desalination engineering firms are there based in France?

RevenueBase identified 112 water desalination engineering 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?

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

Which city has the most water desalination engineering firms?

Paris leads with 3 headquartered companies, followed by Brignais (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 422 verified decision-maker contacts tracked across these 112 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 19, 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.