Company lists · Data refreshed September 2026

Top 25 Municipal water treatment companies based in Spain

Name: Municipal water treatment companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 174 companies tracked

RevenueBase identified 174 municipal water treatment companies headquartered in Spain as of September 2026 and tracks 2,764 professional contacts across them, including 342 with verified work emails. Barcelona is the largest hub.

This list covers municipal water treatment companies headquartered in Spain, 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

174Companies

2,764Contacts tracked

342Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest municipal water treatment companies based in Spain

Ranked by team size

Top 25 of 174 municipal water treatment companies based in Spain, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to municipal water treatment companies: 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	Aigües DE Barcelona	Indirect evidence	Barcelona, SpainHQ checked Sep 20, 2026	501-1,000	434 contacts →
	Indirect evidence “La empresa público-privada Aigües de Barcelona, Empresa Metropolitana de Gestió del Cicle Integral de l'Aigua, participada en un 70% por Agbar, en un 15% por el Área Metropolitana…” Source: RevenueBase Database · checked Sep 20, 2026
2	Facsa. Ciclo Integral DEL Agua	Indirect evidence	Castellón De La Plana, SpainHQ checked Sep 20, 2026	1,001-5,000	305 contacts →
	Indirect evidence “Facsa, empresa ‘origen’ de Nealis, es una referencia en el territorio nacional en la gestión global de los recursos hídricos.” Source: RevenueBase Database · checked Sep 20, 2026
3	Cadagua, A Ferrovial Company	Strong evidence	Bilbao-bilbo, SpainHQ checked Sep 20, 2026	51-200	173 contacts →
	Strong evidence “We specialize in the design, construction, and operation of water treatment facilities.” Source: RevenueBase Database · checked Sep 20, 2026
4	Emaya, S.A	Partial evidence	Palma, SpainHQ checked Sep 20, 2026	1,001-5,000	139 contacts →
	Partial evidence “EMAYA, Empresa Municipal d’Aigües i Clavegueram S.A, és una empresa la titularitat de la qual és de l'Ajuntament de Palma, que posseeix el 100% del seu capital social.” Source: RevenueBase Database · checked Sep 20, 2026
5	Aguas DE Alicante	Partial evidence	Alicante, SpainHQ checked Sep 20, 2026	201-500	85 contacts →
	Partial evidence “Aguas Municipalizadas de Alicante, Empresa Mixta (Aguas de Alicante), cuya sede social está ubicada en la calle Alona 31 de Alicante (España), está participada en un 50 % por el…” Source: RevenueBase Database · checked Sep 20, 2026
6	Aqlara Ciclo Integral DEL Agua	Indirect evidence	Valencia, SpainHQ checked Sep 20, 2026	51-200	81 contacts →
	Indirect evidence “Somos una empresa dedicada a la gestión de servicios de abastecimiento domiciliario de agua potable y explotación de sistemas de saneamiento de agua residual.” Source: RevenueBase Database · checked Sep 20, 2026
7	Aguas DE Córdoba	Indirect evidence	Córdoba, SpainHQ checked Sep 20, 2026	201-500	47 contacts →
	Indirect evidence “Aguas de Córdoba es la nueva imagen comercial con la que la Diputación de Córdoba, a través de su empresa gestora EMPROACSA con 25 años de experiencia, sigue avanzando en la tarea…” Source: RevenueBase Database · checked Sep 20, 2026
8	Depuración DE Aguas DEL Mediterráneo, S.L	Indirect evidence	Paterna, SpainHQ checked Sep 20, 2026	501-1,000	44 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
9	Kinetico Spain	Indirect evidence	L'ametlla Del Vallès, SpainHQ checked Sep 20, 2026	201-500	43 contacts →
	Indirect evidence “Los productos Kinetico resuelven los problemas de calidad del agua de familias y negocios de todo el mundo, con el fin de garantizar que las ventajas del tratamiento de aguas…” Source: RevenueBase Database · checked Sep 20, 2026
10	Apliclor Water Solutions	Partial evidence	Sant Martí Sesgueioles, SpainHQ checked Sep 20, 2026	51-200	39 contacts →
	Partial evidence “About APLICLOR Water Solutions: Apliclor was originally established back in 1911 as a family business focused on the commercialization of chemical products.” Source: RevenueBase Database · checked Sep 20, 2026
11	Pavagua Ambiental	Indirect evidence	Valencia, SpainHQ checked Sep 20, 2026	51-200	36 contacts →
	Indirect evidence “PAVAGUA AMBIENTAL es una empresa de servicios especializada en la gestión del ciclo integral del agua y el cuidado del medioambiente.” Source: RevenueBase Database · checked Sep 20, 2026
12	Osmofilter Industrial	Indirect evidence	Silla, SpainHQ checked Sep 20, 2026	11-50	36 contacts →
	Indirect evidence “En Osmofilter Industrial somos pioneros en el sector de tratamiento de agua en España y expertos en trabajar con ingenierías que dan solución a los problemas del sector.” Source: RevenueBase Database · checked Sep 20, 2026
13	VDF Team	Indirect evidence	Cardedeu, SpainHQ checked Sep 20, 2026	51-200	33 contacts →
	Indirect evidence “Somos una empresa de productos para el tratamiento de agua única en nuestro sector.” Source: RevenueBase Database · checked Sep 20, 2026
14	Odylsa	Indirect evidence	Santa Perpètua De La Mogoda, SpainHQ checked Sep 20, 2026	51-200	31 contacts →
	Indirect evidence “ODYL, S.A.” Source: RevenueBase Database · checked Sep 20, 2026
15	Acosol S.A	Indirect evidence	Marbella, SpainHQ checked Sep 20, 2026	201-500	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
16	Labygema	Indirect evidence	Sevilla, SpainHQ checked Sep 20, 2026	51-200	30 contacts →
	Indirect evidence “LABYGEMA, Laboratorio y Gestión Medioambiental es una empresa especializada en servicios medioambientales y aguas.” Source: RevenueBase Database · checked Sep 20, 2026
17	Aigües DE Mataró SA	Partial evidence	Mataro, SpainHQ checked Sep 20, 2026	51-200	28 contacts →
	Partial evidence “Aigües de Mataró, SA (AMSA) és una societat municipal amb domicili al carrer Pitàgores, 1-7 de Mataró propietat de l’Ajuntament de Mataró, que s’encarrega de la gestió integral de…” Source: RevenueBase Database · checked Sep 20, 2026
18	Dinotec	Indirect evidence	Sevilla, SpainHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence “DINOTEC Sociedad de Aguas y Medio Ambiente S.L.” Source: RevenueBase Database · checked Sep 20, 2026
19	Geodesic Innovations	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “En Geodesic ofrecemos el servicio para la desinfección y mejora de la calidad del agua mediante la aplicación de nuestra avanzada tecnología, tanto a nivel nacional como fuera de…” Source: RevenueBase Database · checked Sep 20, 2026
20	Gen. Grupo Energético DE Puerto Real S.A	Partial evidence	Puerto Real, SpainHQ checked Sep 20, 2026	51-200	17 contacts →
	Partial evidence “Grupo Energético de Puerto Real, SA (GEN) es una sociedad de capital íntegramente municipal y medio propio del Ayuntamiento de Puerto Real responsable de los principales servicios…” Source: RevenueBase Database · checked Sep 20, 2026
21	Estruagua Water Technology	Partial evidence	Les Franqueses Del Valles, SpainHQ checked Sep 20, 2026	51-200	16 contacts →
	Partial evidence “ESTRUAGUA WATER TECHNOLOGY is one of the most important equipment producer for Wwtp, Wtp, pumping station, desalination projects, etc.” Source: RevenueBase Database · checked Sep 20, 2026
22	Aquona, Gestion DE Aguas DE Castilla SA	Indirect evidence	Valladolid, SpainHQ checked Sep 20, 2026	1,001-5,000	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
23	Aguas DE Valencia S.A	Indirect evidence	Valencia, SpainHQ checked Sep 20, 2026	1,001-5,000	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
24	Depuradores D'osona SL	Strong evidence	Vic, SpainHQ checked Sep 20, 2026	51-200	12 contacts →
	Strong evidence “DEPURADORES D'OSONA SL is a Waste Water Treatment company, based in Osona (Barcelona) taking care of 30 WWTP and its sewage nets.” Source: RevenueBase Database · checked Sep 20, 2026
25	Eminfor S.L	Indirect evidence	Igualada, SpainHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Somos una empresa dedicada al tratamiento de aguas, urbanas e industriales, con una amplia trayectoria de más de 26 años.” 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: municipal water treatment companies. 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 water treatment companies.
Partial evidence: Its own public description names part of municipal water treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal water treatment companies. 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 174 municipal water treatment companies based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 342 reachable decision-makers.

Free signup · no credit card

View the full list →

Municipal water treatment companies based in Spain at a glance

As of Sep 20, 2026

12.4%Verified-email coverage

15.9Average contacts per company

11-50Median size (employees)

4.6%Largest-city concentration · Barcelona

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 174 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 water treatment companies, 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 Spain whose own description of what they do matches “municipal water treatment companies”. 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 water treatment companies), 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 water treatment companies, and records with no verified work email. Companies headquartered outside Spain 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, 342 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 municipal water treatment companies, 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 water treatment companies are there based in Spain?

RevenueBase identified 174 municipal water treatment companies headquartered in Spain 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?

Aigües DE Barcelona, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most municipal water treatment companies?

Barcelona leads with 8 headquartered companies, followed by Madrid (8) and Valencia (6).

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 342 verified decision-maker contacts tracked across these 174 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.

Ready to reach these companies? Verified emails and direct dials for all 174 municipal water treatment companies based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

Municipal water treatment companies by geography

Browse the directory

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.