Company lists · Data refreshed November 2026

Top 25 Water and sanitation organizations based in Spain

RevenueBase identified 365 company matches for water and sanitation organizations associated with Spain as of November 2026 and tracks 16,907 professional contacts across them, including 2,214 with verified work emails. Madrid is the largest hub.

This list covers company matches for water and sanitation organizations associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
365Companies
16,907Contacts tracked
2,214Verified emails
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The 25 largest water and sanitation organizations based in Spain

Ranked by team size
Top 25 of 365 company matches for water and sanitation organizations based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSeville, SpainHQ recorded Nov 6, 202610001+3,766 contacts →

Exact match

“Coxabengoa is a vertically integrated global utility in water and energy at the forefront of solving the greatest global challenges of the green transition by applying…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSeville, SpainHQ recorded Nov 6, 20265,001-10,0001,656 contacts →

Exact match

“Cox is a vertically integrated global utility in the water and energy sectors, at the forefront of addressing the greatest challenges of the green transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Nov 6, 20265,001-10,0001,606 contacts →

Exact match

“Aqualia es la cuarta empresa de gestión del agua de Europa y la novena del Mundo por población servida, según el último ranking de Global Water Intelligence (diciembre de 2024).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,0001,278 contacts →

Exact match

“Canal de Isabel II es la empresa pública responsable de la gestión del ciclo integral del agua en la Comunidad de Madrid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 20265,001-10,0001,136 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000469 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000429 contacts →

Exact match

“Positioned as one of the companies with the largest number of plants in terms of concessions, GS Inima is a world benchmark in the water sector acting in all phases of the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCastellón De La Plana, SpainHQ recorded Nov 6, 20261,001-5,000340 contacts →

Exact match

“Facsa, empresa ‘origen’ de Nealis, es una referencia en el territorio nacional en la gestión global de los recursos hídricos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMálaga, SpainHQ recorded Nov 6, 2026201-500295 contacts →

Exact match

“La Empresa Municipal Aguas de Málaga, S.A.(EMASA) fue creada por el Excmo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000196 contacts →

Exact match

“L’Agència Catalana de l’Aigua (ACA) és l’empresa pública, adscrita al Departament de Territori, Habitatge i Transició Ecològica de la Generalitat de Catalunya.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMurcia, SpainHQ recorded Nov 6, 20261,001-5,000194 contacts →

Exact match

“STV was founded in 1993 to cover all needs of all kinds of urban services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBilbao-bilbo, SpainHQ recorded Nov 6, 202651-200194 contacts →

Exact match

“We specialize in the design, construction, and operation of water treatment facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBarcelona, SpainHQ recorded Nov 6, 2026201-500174 contacts →

Exact match

“Empresa dedicada a la Obra Civil y Servicios especializada en los sectores de agua, energía, mantenimiento, eficiencia energética y saneamiento, así como en la ejecución de obra…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500161 contacts →

Exact match

“En Gestagua, filial española del grupo Saur, los Municipios encuentran no sólo un operador eficiente para todas las fases del Ciclo del Agua, sino un socio activo para la gestión…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPalma De Mallorca, SpainHQ recorded Nov 6, 20261,001-5,000146 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSantiago De Compostela, SpainHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“Somos especialistas en la gestión integral del ciclo del agua y en la construcción de obras hidráulicas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“MIYA is a global efficiency-oriented water operator with vast experience and a full range offering for water utilities including water efficiency, commercial management and water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBilbao, SpainHQ recorded Nov 6, 2026201-500112 contacts →

Exact match

“Ur Partzuergoa da lehen mailako sarea kudeatzeaz arduratzen den erakundea; gutxi gorabehera, Bizkaiko milioi bat biztanleren edateko uraren horniduraz eta hondakin uren…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAlicante, SpainHQ recorded Nov 6, 2026201-50088 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchGirona, SpainHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“We welcome you to the Catalan Institute for Water Research (ICRA-CERCA).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMurcia, SpainHQ recorded Nov 6, 2026201-50080 contacts →

Exact match

“We are a customer focused environmental sector company managing the complete water cycle processes in Murcia Region, granting water quality and health to its population.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchTarragona, SpainHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“EMATSA, Empresa Municipal Mixta d’Aigües de Tarragona, S.A, és una companyia de l’Ajuntament de Tarragona i de Sorea (grup Agbar), que contribueix al creixement i desenvolupament…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMaçanet De La Selva, SpainHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“ACO Grupo Iberia now offers, together with ACO Remosa-a family-run company with a long-standing presence in the market and now part of the ACO Group-systems and services to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAlovera, SpainHQ recorded Nov 6, 2026201-50056 contacts →

Exact match

“adequa es una compañía especializada en sistemas para la recogida y conducción de agua, aportando las mejores soluciones en cada aplicación.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCórdoba, SpainHQ recorded Nov 6, 2026201-50053 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 365 water and sanitation organizations based in Spain

See the full list, filter by size, metro and specialty, and access 2,214 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water and sanitation organizations based in Spain at a glance

As of Nov 6, 2026
13.1%Verified-email coverage
46.3Average contacts per company
11-50Median size (employees)
14.2%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
145
11-50
102
51-200
66
201-500
18
501-1,000
8
1,001-5,000
14
5,001-10,000
6
10001+
2

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 365 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Spain whose business descriptions match “water and sanitation organizations” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,214 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “water and sanitation organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water and sanitation organizations are there based in Spain?

RevenueBase identified 365 company matches for water and sanitation organizations associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Coxabengoa tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water and sanitation organizations?

Madrid leads with 52 company records, followed by Barcelona (26) and Seville (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,214 professional contacts with verified work emails tracked across these 365 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.