Company lists · Data refreshed September 2026

Top 25 Industrial waste water treatment companies based in Spain

Name: Industrial waste 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 15, 2026 246 companies tracked

RevenueBase identified 246 industrial waste water treatment companies headquartered in Spain as of September 2026 and tracks 2,582 professional contacts across them, including 263 with verified work emails. Barcelona is the largest hub.

This list covers industrial waste 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 15, 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 15, 2026 86% judged on-target in blind review

246Companies

2,582Contacts tracked

263Verified emails

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

The 25 largest industrial waste water treatment companies based in Spain

Ranked by team size

Top 25 of 246 industrial waste water treatment companies based in Spain, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to industrial waste 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	Facsa. Ciclo Integral DEL Agua	Indirect evidence	Castellón De La Plana, SpainHQ checked Sep 15, 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 15, 2026
2	Cadagua, A Ferrovial Company	Strong evidence	Bilbao-bilbo, SpainHQ checked Sep 15, 2026	51-200	173 contacts →
	Strong evidence “We specialize in the design, construction, and operation of water treatment facilities.” Source: RevenueBase Database · checked Sep 15, 2026
3	Culligan España	Indirect evidence	Tomares, SpainHQ checked Sep 15, 2026	501-1,000	153 contacts →
	Indirect evidence “Culligan es conocida por la alta calidad en el tratamiento de piscinas, por su implantación de descalcificadores y equipos de ósmosis inversa en el mercado doméstico, y por la…” Source: RevenueBase Database · checked Sep 15, 2026
4	Bianna	Strong evidence	Celrà, SpainHQ checked Sep 15, 2026	51-200	104 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 15, 2026
5	Ecotec	Indirect evidence	Sallent, SpainHQ checked Sep 15, 2026	11-50	83 contacts →
	Indirect evidence “ECOTEC - Ecología Técnica, S.A.” Source: RevenueBase Database · checked Sep 15, 2026
6	Depuración DE Aguas DEL Mediterráneo, S.L	Indirect evidence	Paterna, SpainHQ checked Sep 15, 2026	501-1,000	44 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
7	Kinetico Spain	Indirect evidence	L'ametlla Del Vallès, SpainHQ checked Sep 15, 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 15, 2026
8	Detegasa	Strong evidence	Narón, SpainHQ checked Sep 15, 2026	51-200	42 contacts →
	Strong evidence “Detegasa designs, manufactures and markets high-tech waste and water treatment solutions for Navy, Marine & Offshore Industries, providing an integrated lifecycle support.” Source: RevenueBase Database · checked Sep 15, 2026
9	Apliclor Water Solutions	Partial evidence	Sant Martí Sesgueioles, SpainHQ checked Sep 15, 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 15, 2026
10	Pavagua Ambiental	Indirect evidence	Valencia, SpainHQ checked Sep 15, 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 15, 2026
11	Osmofilter Industrial	Partial evidence	Silla, SpainHQ checked Sep 15, 2026	11-50	36 contacts →
	Partial 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 15, 2026
12	Distiller	Strong evidence	Santa Perpètua De Mogoda, SpainHQ checked Sep 15, 2026	51-200	33 contacts →
	Strong evidence “Distiller is a leader in the treatment and management of industrial waste, as well as in the recovery of solvents and water treatment.” Source: RevenueBase Database · checked Sep 15, 2026
13	Odylsa	Indirect evidence	Santa Perpètua De La Mogoda, SpainHQ checked Sep 15, 2026	51-200	31 contacts →
	Indirect evidence “ODYL, S.A.” Source: RevenueBase Database · checked Sep 15, 2026
14	Labygema	Indirect evidence	Sevilla, SpainHQ checked Sep 15, 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 15, 2026
15	Valtalia	Indirect evidence	Ourense, SpainHQ checked Sep 15, 2026	201-500	29 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026
16	Peter Taboada	Indirect evidence	Redondela, SpainHQ checked Sep 15, 2026	11-50	29 contacts →
	Indirect evidence “Peter Taboada, S.L.” Source: RevenueBase Database · checked Sep 15, 2026
17	Setapht	Strong evidence	Rivas-vaciamadrid, SpainHQ checked Sep 15, 2026	51-200	25 contacts →
	Strong evidence “Spanish Company with more that 50 years of experience in water treatment with projects in 5 continents.” Source: RevenueBase Database · checked Sep 15, 2026
18	BWT ATH	Indirect evidence	Cervelló, SpainHQ checked Sep 15, 2026	51-200	22 contacts →
	Indirect evidence “Con más de 28 años de experiencia en el mercado, ATH, ofrece una sólida presencia respaldada por el líder europeo en tecnología del agua.” Source: RevenueBase Database · checked Sep 15, 2026
19	Sereco Gestion, S.L	Partial evidence	Oruña, SpainHQ checked Sep 15, 2026	11-50	18 contacts →
	Partial evidence “SERECO is a Spanish company with 25 years of experience, offering services to reduce the environmental impact of sludge and waste ON-SITE, nationally and internationally, using…” Source: RevenueBase Database · checked Sep 15, 2026
20	Condorchem Enviro Solutions	Strong evidence	Premià De Dalt, SpainHQ checked Sep 15, 2026	11-50	16 contacts →
	Strong evidence “We are an environmental engineering company that provides comprehensive solutions for wastewater treatment and air pollution control for all industrial activities.” Source: RevenueBase Database · checked Sep 15, 2026
21	Estruagua Water Technology	Partial evidence	Les Franqueses Del Valles, SpainHQ checked Sep 15, 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 15, 2026
22	Tecnoquimia Catalunya SL	Strong evidence	Abrera, SpainHQ checked Sep 15, 2026	1-10	15 contacts →
	Strong evidence “Tecnoquimia: Cleaning and Water Technologies We are a company specialized in industrial cleaning solutions (products and processes) across various sectors (automotive, surface…” Source: RevenueBase Database · checked Sep 15, 2026
23	Tashia	Indirect evidence	Artesa De Segre, SpainHQ checked Sep 15, 2026	11-50	13 contacts →
	Indirect evidence “Tashia es una empresa fundada en 1986, especializada en tratamientos del agua potable, sistemas de dosificación, dióxido de cloro y productos químicos; el principal objetivo es…” Source: RevenueBase Database · checked Sep 15, 2026
24	Depuradores D'osona SL	Strong evidence	Vic, SpainHQ checked Sep 15, 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 15, 2026
25	Eminfor S.L	Partial evidence	Igualada, SpainHQ checked Sep 15, 2026	11-50	11 contacts →
	Partial 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 15, 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: industrial waste 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 industrial waste water treatment companies.
Partial evidence: Its own public description names part of industrial waste 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 industrial waste 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 246 industrial waste 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 263 reachable decision-makers.

Free signup · no credit card

View the full list →

Industrial waste water treatment companies based in Spain at a glance

As of Sep 15, 2026

10.2%Verified-email coverage

10.5Average contacts per company

11-50Median size (employees)

6.9%Largest-city concentration · Barcelona

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

106

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 246 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 industrial waste 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 “industrial waste 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 industrial waste 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 industrial waste 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, 263 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 15, 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 industrial waste 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 industrial waste water treatment companies are there based in Spain?

RevenueBase identified 246 industrial waste 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?

Facsa. Ciclo Integral DEL Agua, headquartered in Castellon De La Plana, tops this list with the largest team on record.

Which city has the most industrial waste water treatment companies?

Barcelona leads with 17 headquartered companies, followed by Madrid (12) and Valencia (8).

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 263 verified decision-maker contacts tracked across these 246 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 15, 2026.

Ready to reach these companies? Verified emails and direct dials for all 246 industrial waste water treatment companies based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

Industrial waste water treatment companies by geography

Browse the directory

Browse: Companies home · All Spain lists · All Industrial waste water treatment companies lists · New lists

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.