Company lists · Data refreshed September 2026

Top 25 Water efficiency consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 202 companies tracked

RevenueBase identified 202 water efficiency consulting firms headquartered in France as of September 2026 and tracks 24,117 professional contacts across them, including 8,440 with verified work emails. Paris is the largest hub.

This list covers water efficiency consulting 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 29, 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 29, 2026 86% judged on-target in blind review

202Companies

24,117Contacts tracked

8,440Verified emails

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The 25 largest water efficiency consulting firms based in France

Ranked by team size

Top 25 of 202 water efficiency consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to water efficiency consulting 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	SUEZ	Partial evidence	Paris, FranceHQ checked Sep 29, 2026	10001+	21,549 contacts →
	Partial evidence “We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Source: RevenueBase Database · checked Sep 29, 2026
2	Antea Group - France	Indirect evidence	Olivet, FranceHQ checked Sep 29, 2026	1,001-5,000	737 contacts →
	Indirect evidence “Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Source: RevenueBase Database · checked Sep 29, 2026
3	Setec Hydratec	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	201-500	182 contacts →
	Indirect evidence “Bureau d’études techniques fondé en 1974, setec hydratec s’est positionné en tant qu’expert sur tous les sujets liés à l’ingénierie de l’eau et des sites et sols pollués, afin de…” Source: RevenueBase Database · checked Sep 29, 2026
4	Odyssee Environnement Water Treatment	Partial evidence	Requeil, FranceHQ checked Sep 29, 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 29, 2026
5	Ségic Ingénierie	Indirect evidence	Verrières-le-buisson, FranceHQ checked Sep 29, 2026	51-200	65 contacts →
	Indirect evidence “SÉGIC Ingénierie est un acteur fort du Conseil dans les domaines de l’Environnement et des Infrastructures.” Source: RevenueBase Database · checked Sep 29, 2026
6	Nijhuis Saur Industries France	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 29, 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 29, 2026
7	Prolog Ingenierie	Strong evidence	Paris, FranceHQ checked Sep 29, 2026	51-200	56 contacts →
	Strong evidence “PROLOG INGENIERIE is a consulting engineering firm at the forefront of water management and remote-controlled systems, committed to enhancing water quality and environmental…” Source: RevenueBase Database · checked Sep 29, 2026
8	GES	Indirect evidence	Noyal-sur-vilaine, FranceHQ checked Sep 29, 2026	11-50	53 contacts →
	Indirect evidence “GES est une société spécialisée dans la recherche, les études et le conseil sur l'eau, l'environnement et l'industrie.” Source: RevenueBase Database · checked Sep 29, 2026
9	Amodiag Environnement	Indirect evidence	Prouvy, FranceHQ checked Sep 29, 2026	51-200	44 contacts →
	Indirect evidence “AMÉLIORER LE MILIEU NATUREL ET LA QUALITÉ DE VIE DES USAGERS PAR LE BIAIS DU TRAITEMENT DE L'EAU POTABLE ET DES EAUX USÉES Expert du monde de l’eau, des déchets et des…” Source: RevenueBase Database · checked Sep 29, 2026
10	Tribu Energie	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	11-50	43 contacts →
	Indirect evidence “Bureau d'études « Fluides, Energie et Développement durable » créé en 2002, Tribu Energie synthétise à travers ses ingénieurs plus de trente années d'expérience en énergétique du…” Source: RevenueBase Database · checked Sep 29, 2026
11	Sepia Conseils	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	11-50	42 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
12	Réalités Environnement	Indirect evidence	Trevoux, FranceHQ checked Sep 29, 2026	11-50	35 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
13	Cogite	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	11-50	32 contacts →
	Indirect evidence “Créée en 2011 par François BODET, COGITE est une société spécialisée dans le Conseil aux Collectivités.” Source: RevenueBase Database · checked Sep 29, 2026
14	Batimgie	Indirect evidence	Angers, FranceHQ checked Sep 29, 2026	11-50	27 contacts →
	Indirect evidence “BatiMgie est un bureau d’études indépendant spécialisé dans la performance énergétique des bâtiments et la maîtrise d’œuvre fluide, thermique et environnementale.” Source: RevenueBase Database · checked Sep 29, 2026
15	Aquassay	Strong evidence	Le Palais-sur-vienne, FranceHQ checked Sep 29, 2026	11-50	24 contacts →
	Strong evidence “Aquassay improves the water efficiency of industrial sites by carrying out diagnostics and dynamic mapping of water uses and by advocating solutions to consume less, produce…” Source: RevenueBase Database · checked Sep 29, 2026
16	Ecofilae	Indirect evidence	Montpellier, FranceHQ checked Sep 29, 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 29, 2026
17	Dv2e	Indirect evidence	Vergèze, FranceHQ checked Sep 29, 2026	11-50	22 contacts →
	Indirect evidence “DV2E est une société d’études et de services dans les domaines de l’eau, du déchet et des sols pour l’agriculture.” Source: RevenueBase Database · checked Sep 29, 2026
18	Pegime	Indirect evidence	Lyon, FranceHQ checked Sep 29, 2026	11-50	18 contacts →
	Indirect evidence “Pegime accompagne et conseille ses clients sur des missions techniques dans le but de réduire l'impact environnemental de leurs bâtiments en optimisant les performances…” Source: RevenueBase Database · checked Sep 29, 2026
19	Aquaprox Group	Partial evidence	Levallois-perret, FranceHQ checked Sep 29, 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 29, 2026
20	NEW Energie Concept	Indirect evidence	Epinal, FranceHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “Bureau d'études Fluides, Audits Energétiques et Economiste de la construction” Source: RevenueBase Database · checked Sep 29, 2026
21	Polar Energies	Indirect evidence	Seclin, FranceHQ checked Sep 29, 2026	11-50	14 contacts →
	Indirect evidence “Economisez jusqu'à 30% sur vos contrats de gaz et d'électricité et gagnez jusqu'à 3 semaines par an!” Source: RevenueBase Database · checked Sep 29, 2026
22	Proteis SAS	Strong evidence	Francheville, FranceHQ checked Sep 29, 2026	11-50	13 contacts →
	Strong evidence “Business consulting Energy efficiency consulting for electrical processes Low energy indsutrial lighting application Life cycle machinery optimisation, leakage and waste reduction…” Source: RevenueBase Database · checked Sep 29, 2026
23	Niortaise DES Eaux	Indirect evidence	Chauray, FranceHQ checked Sep 29, 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 29, 2026
24	BEHI	Indirect evidence	Saint-Agne, FranceHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Depuis 30 ans, l’envie d’optimiser la consommation énergétique et de participer à protéger l’environnement, guide l’évolution de BÉHI.” Source: RevenueBase Database · checked Sep 29, 2026
25	YXO Consultants	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “YXO consultants (anciennement BPR France) est un cabinet d’ingénieurs conseils et consultants experts dans les domaines de l’eau, de l’énergie et de l’environnement.” Source: RevenueBase Database · checked Sep 29, 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 efficiency consulting 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 efficiency consulting firms.
Partial evidence: Its own public description names part of water efficiency consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water efficiency consulting 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 202 water efficiency consulting firms based in France

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Water efficiency consulting firms based in France at a glance

As of Sep 29, 2026

35.0%Verified-email coverage

119.4Average contacts per company

1-10Median size (employees)

12.9%Largest-city concentration · Paris

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

135

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 202 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 efficiency consulting 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 efficiency consulting 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 efficiency consulting 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 efficiency consulting 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, 8,440 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 29, 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.

Water efficiency consulting firms by metro

Water efficiency consulting firms in Paris26

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 efficiency consulting 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 efficiency consulting firms are there based in France?

RevenueBase identified 202 water efficiency consulting 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?

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

Which city has the most water efficiency consulting firms?

Paris leads with 26 headquartered companies, followed by Lyon (3) and Marseille (3).

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 8,440 verified decision-maker contacts tracked across these 202 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 29, 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.