Company lists · Data refreshed September 2026

Top 25 Municipal wastewater treatment contractors based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 154 companies tracked

RevenueBase identified 154 company matches for municipal wastewater treatment contractors associated with Spain as of September 2026 and tracks 1,979 professional contacts across them, including 250 with verified work emails. Barcelona is the largest hub.

This list covers company matches for municipal wastewater treatment contractors 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 September 17, 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 Sep 17, 2026 How this list was built

154Companies

1,979Contacts tracked

250Verified emails

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The 25 largest municipal wastewater treatment contractors based in Spain

Ranked by team size

Top 25 of 154 company matches for municipal wastewater treatment contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Facsa. Ciclo Integral DEL Agua	Exact match	Castellón De La Plana, SpainHQ recorded Sep 17, 2026	1,001-5,000	305 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 · Sep 17, 2026 · View company records in RevenueBase
2	Cadagua, A Ferrovial Company	Exact match	Bilbao-bilbo, SpainHQ recorded Sep 17, 2026	51-200	173 contacts →
	Exact match “We specialize in the design, construction, and operation of water treatment facilities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Emaya, S.A	Exact match	Palma De Mallorca, SpainHQ recorded Sep 17, 2026	1,001-5,000	139 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 · Sep 17, 2026 · View company records in RevenueBase
4	Bianna	Exact match	Celrà, SpainHQ recorded Sep 17, 2026	51-200	104 contacts →
	Exact match “For more than 20 years we have developed, planned and installed "turnkey" waste treatment plants all over the world and we are the leading manufacturer of equipment for the sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Ecotec	Exact match	Sallent, SpainHQ recorded Sep 17, 2026	11-50	83 contacts →
	Exact match “ECOTEC - Ecología Técnica, S.A.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Elmasa Tecnología DEL Agua	Exact match	San Bartolomé De Tirajana, SpainHQ recorded Sep 17, 2026	11-50	48 contacts →
	Exact match “Elmasa Tecnología del Agua es una empresa especializada en el ciclo integral del agua.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Depuración DE Aguas DEL Mediterráneo, S.L	Exact match	Paterna, SpainHQ recorded Sep 17, 2026	501-1,000	44 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Marea, Medio Ambiente, Residuos Y Agua	Exact match	Seville, SpainHQ recorded Sep 17, 2026	11-50	38 contacts →
	Exact match “Marea es una empresa del grupo RUSVEL de construcción y servicios, con una dilatada experiencia en el ciclo integral del agua y otros campos como la industria, la agricultura, el…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Pavagua Ambiental	Exact match	Valencia, SpainHQ recorded Sep 17, 2026	51-200	36 contacts →
	Exact match “PAVAGUA AMBIENTAL es una empresa de servicios especializada en la gestión del ciclo integral del agua y el cuidado del medioambiente.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Fluidra Commercial Pool	Exact match	Sant Cugat Del Vallès, SpainHQ recorded Sep 17, 2026	1,001-5,000	34 contacts →
	Exact match “Fluidra Commercial Pool and Wellness is a Fluidra Business Unit with extensive experience in designing, developing and implementing water facilities all around the world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Ansareo Grupo	Exact match	Ortuella, SpainHQ recorded Sep 17, 2026	1,001-5,000	32 contacts →
	Exact match “Ofrecemos soluciones en cuanto a obra civil, servicios de limpiezas industriales, equipos de bombeo, servicios de jardinería, y un amplio abanico de servicios a disposición de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Odylsa	Exact match	Santa Perpètua De La Mogoda, SpainHQ recorded Sep 17, 2026	51-200	31 contacts →
	Exact match “ODYL, S.A.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Valtalia	Exact match	Ourense, SpainHQ recorded Sep 17, 2026	201-500	29 contacts →
	Exact match “Grupo empresarial que, desde su fundación en el año 2005 ha tenido una trayectoria de crecimiento constante y sostenido, experimentando un proceso de diversificación tanto…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Dinotec	Exact match	Seville, SpainHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “DINOTEC Sociedad de Aguas y Medio Ambiente S.L.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Bluegold	Exact match	El Campello, SpainHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “Blue Gold is an engineering company, specialized in the design and supply of water treatment process plants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Condorchem Enviro Solutions	Exact match	Premià De Dalt, SpainHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “We are an environmental engineering company that provides comprehensive solutions for wastewater treatment and air pollution control for all industrial activities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Estruagua Water Technology	Exact match	Les Franqueses Del Valles, SpainHQ recorded Sep 17, 2026	51-200	16 contacts →
	Exact match “ESTRUAGUA WATER TECHNOLOGY is one of the most important equipment producer for Wwtp, Wtp, pumping station, desalination projects, etc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Depuradores D'osona SL	Exact match	Vic, SpainHQ recorded Sep 17, 2026	51-200	12 contacts →
	Exact match “DEPURADORES D'OSONA SL is a Waste Water Treatment company, based in Osona (Barcelona) taking care of 30 WWTP and its sewage nets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Eminfor S.L	Exact match	Igualada, SpainHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Somos una empresa dedicada al tratamiento de aguas, urbanas e industriales, con una amplia trayectoria de más de 26 años.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Depurtech	Exact match	Tona, SpainHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “At Depurtech we are dedicated to the comprehensive treatment of wastewater, industrial, urban and slurry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Aguasigma Water Treatment Solutions	Exact match	Cornellà Del Terri, SpainHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “We are an engineering company with more than 40 years of experience, specialized in the implementation of projects for the treatment of industrial wastewater with our own…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Huber Technology España	Exact match	Alcobendas, SpainHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “HUBER es una empresa multinacional especializada en maquinaria, plantas y equipos de acero inoxidable de alta calidad para el tratamiento de aguas residuales y lodos municipales e…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	MF Tecnima	Exact match	Vic, SpainHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Som una empresa d'Enginyeria - Consultoria especialitzada en el sector del medi ambient, fundada l'any 1997 amb un clar objectiu: oferir a les empreses un servei integral i…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Agnua Ingeniería	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Somos una empresa de ingeniería y consultoría dedicada al diseño de plantas de tratamiento de agua.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Acondaqua Ingenieria DEL Agua S.L	Exact match	Manises, SpainHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Diagnóstico, Diseño e instalación llave en mano de equipos e instalaciones de tratamiento de aguas potables y residuales.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “municipal wastewater treatment contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 154 municipal wastewater treatment contractors based in Spain

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Municipal wastewater treatment contractors based in Spain at a glance

As of Sep 17, 2026

12.6%Verified-email coverage

12.9Average contacts per company

11-50Median size (employees)

6.5%Largest-city concentration · Barcelona

Sep 17, 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 154 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 “municipal wastewater treatment contractors” 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 250 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 September 17, 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 “municipal wastewater treatment contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal wastewater treatment contractors are there based in Spain?

RevenueBase identified 154 company matches for municipal wastewater treatment contractors associated with Spain as of September 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?

Facsa. Ciclo Integral DEL Agua tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most municipal wastewater treatment contractors?

Barcelona leads with 10 company records, followed by Madrid (8) and Seville (5).

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 250 professional contacts with verified work emails tracked across these 154 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 September 17, 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.