Company lists · Data refreshed September 2026

Top 24 Water treatment facility engineers based in Spain

RevenueBase identified 98 company matches for water treatment facility engineers associated with Spain as of September 2026 and tracks 941 professional contacts across them, including 99 with verified work emails. Barcelona is the largest hub.

This list covers company matches for water treatment facility engineers 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 22, 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 22, 2026 How this list was built
98Companies
941Contacts tracked
99Verified emails
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The 24 largest water treatment facility engineers based in Spain

Ranked by team size
Top 24 of 98 company matches for water treatment facility engineers based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchBilbao-bilbo, SpainHQ recorded Sep 22, 202651-200173 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchCelrà, SpainHQ recorded Sep 22, 202651-200104 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 22, 2026 · View company records in RevenueBase
3Exact matchSant Martí Sesgueioles, SpainHQ recorded Sep 22, 202651-20039 contacts →

Exact match

“About APLICLOR Water Solutions: Apliclor was originally established back in 1911 as a family business focused on the commercialization of chemical products.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchSilla, SpainHQ recorded Sep 22, 202611-5036 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchCardedeu, SpainHQ recorded Sep 22, 202651-20033 contacts →

Exact match

“Somos una empresa de productos para el tratamiento de agua única en nuestro sector.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchSanta Perpètua De La Mogoda, SpainHQ recorded Sep 22, 202651-20031 contacts →

Exact match

“ODYL, S.A.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchSeville, SpainHQ recorded Sep 22, 202611-5027 contacts →

Exact match

“DINOTEC Sociedad de Aguas y Medio Ambiente S.L.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchEl Campello, SpainHQ recorded Sep 22, 202611-5022 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 22, 2026 · View company records in RevenueBase
9Exact matchArtesa De Segre, SpainHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchIgualada, SpainHQ recorded Sep 22, 202611-5011 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 22, 2026 · View company records in RevenueBase
11Exact matchTona, SpainHQ recorded Sep 22, 202611-5010 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 22, 2026 · View company records in RevenueBase
12Exact matchVilanova I La Geltrú, SpainHQ recorded Sep 22, 20261-1010 contacts →

Exact match

“Technologies and equipment for the environment Experts in innovative technological applications to improve water quality and the environment.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchArbizu, SpainHQ recorded Sep 22, 202611-509 contacts →

Exact match

“En ProsimeD, realizamos instalaciones llave en mano para el tratamiento integral del agua.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchCornellà Del Terri, SpainHQ recorded Sep 22, 202611-509 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 22, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Sep 22, 20261-106 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 22, 2026 · View company records in RevenueBase
16Exact matchManises, SpainHQ recorded Sep 22, 20261-106 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 22, 2026 · View company records in RevenueBase
17Exact matchLa Muela, SpainHQ recorded Sep 22, 202611-506 contacts →

Exact match

“Industrial Water: engineering, services and equipment (turn-key plants.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchMálaga, SpainHQ recorded Sep 22, 202611-504 contacts →

Exact match

“La Empresa Aquapurif, fundada en nace con el propósito de proporcionar el mejor servicio en el campo del tratamiento del agua.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Sep 22, 20261-104 contacts →

Exact match

“Hydrokemos es una ingeniería tecnológica de vanguardia especializada en ofrecer soluciones globales para la depuración y reutilización de aguas industriales, a través de su…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchLas Rozas De Madrid, SpainHQ recorded Sep 22, 20261-104 contacts →

Exact match

“Somos una empresa de consultores tecnológicos y de expertos en depuración de aguas residuales.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchAranda De Duero, SpainHQ recorded Sep 22, 20261-103 contacts →

Exact match

“En 2001, SYNTEA, con el fin de trasladar la experiencia acumulada, pone en marcha un plan de expansión en la península Ibérica, creando, Técnicas y Tratamientos de Depuración, S.A.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchPalamós, SpainHQ recorded Sep 22, 20261-103 contacts →

Exact match

“Somos una empresa especializada en el tratamiento del agua, tanto domestica como industrial.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchCalvia, SpainHQ recorded Sep 22, 202611-502 contacts →

Exact match

“Con un reputado prestigio en el sector, Magic centra sus recursos en la innovación de diseños de equipos para el tratamiento, manipulación y adecuación de aguas, con la misión de…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchGirona, SpainHQ recorded Sep 22, 20261-102 contacts →

Exact match

“Especialistas en soluciones para la gestión y tratamiento del agua.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 24 of 98 water treatment facility engineers based in Spain

See the full list, filter by size, metro and specialty, and access 99 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water treatment facility engineers based in Spain at a glance

As of Sep 22, 2026
10.5%Verified-email coverage
9.6Average contacts per company
11-50Median size (employees)
5.1%Largest-city concentration · Barcelona
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
45
11-50
41
51-200
11
201-500
1

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 98 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 treatment facility engineers” 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 99 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 22, 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 treatment facility engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water treatment facility engineers are there based in Spain?

RevenueBase identified 98 company matches for water treatment facility engineers 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?

Cadagua, A Ferrovial Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water treatment facility engineers?

Barcelona leads with 5 company records, followed by Madrid (3) and Seville (3).

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 99 professional contacts with verified work emails tracked across these 98 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 22, 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.