Company lists · Data refreshed November 2026

Top 24 Wastewater engineering contractors based in Spain

RevenueBase identified 258 company matches for wastewater engineering contractors associated with Spain as of November 2026 and tracks 4,909 professional contacts across them, including 686 with verified work emails. Madrid is the largest hub.

This list covers company matches for wastewater engineering 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 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
258Companies
4,909Contacts tracked
686Verified emails
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The 24 largest wastewater engineering contractors based in Spain

Ranked by team size
Top 24 of 258 company matches for wastewater engineering contractors 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 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
2Exact 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
3Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000254 contacts →

Exact match

“With an international focus, since its inception, The Elsamex group (Grupo Elsamex) has developed its business in Spain, Latin America and Portugal.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSantiago De Compostela, SpainHQ recorded Nov 6, 2026201-500233 contacts →

Exact match

“ESPINA is a constantly growing company that has been expanding its areas of activity and services in Spain since 1989 and in Uruguay and the Ivory Coast since 1995.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200156 contacts →

Exact match

“Almar Water Solutions is a leading global water infrastructure development and services business creating innovative, utility-scale, solutions for both municipal and industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCelrà, SpainHQ recorded Nov 6, 202651-200130 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500124 contacts →

Exact match

“Desde sus inicios, URCI participó activamente en el desarrollo de las infraestructuras viarias, ferroviarias, portuarias y aeroportuarias construidas en España por el gobierno, y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchEl Palmar (murcia), SpainHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAbrera, SpainHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“En LEDR Ingeniería y Servicios SL no solo diseñamos sobre el plano, nuestra verdadera fuerza reside en la capacidad de ejecutar proyectos desde el concepto inicial hasta la puesta…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact 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
14Exact matchAs Pontes De García Rodríguez, SpainHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“Intacta surge como una sinergia que une la participación activa y concertada para alcanzar una eficacia total y garantizar cualquier servicio medioambiental, pero con ella nace…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Bartolomé De Tirajana, SpainHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Elmasa Tecnología del Agua es una empresa especializada en el ciclo integral del agua.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPaterna, SpainHQ recorded Nov 6, 2026501-1,00049 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchValencia, SpainHQ recorded Nov 6, 202651-20040 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSant Cugat Del Vallès, SpainHQ recorded Nov 6, 20261,001-5,00039 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRubí, SpainHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Más de 25 años asesorando tecnológicamente y estudiando modelos de actuación sostenibles que mejoran las intervenciones realizadas en la red de saneamiento.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSeville, SpainHQ recorded Nov 6, 202611-5038 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSanta Perpètua De La Mogoda, SpainHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“ODYL, S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZaragoza, SpainHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Ingeobras is a company with international experience dedicated to engineering and the creation of new technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSeville, SpainHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“LABYGEMA, Laboratorio y Gestión Medioambiental es una empresa especializada en servicios medioambientales y aguas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOrtuella, SpainHQ recorded Nov 6, 20261,001-5,00034 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 258 wastewater engineering contractors based in Spain

See the full list, filter by size, metro and specialty, and access 686 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater engineering contractors based in Spain at a glance

As of Nov 6, 2026
14.0%Verified-email coverage
19.0Average contacts per company
11-50Median size (employees)
8.9%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
86
11-50
119
51-200
36
201-500
8
501-1,000
1
1,001-5,000
5

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 258 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 “wastewater engineering 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 686 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 “wastewater engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater engineering contractors are there based in Spain?

RevenueBase identified 258 company matches for wastewater engineering contractors 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?

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

Which city has the most wastewater engineering contractors?

Madrid leads with 23 company records, followed by Barcelona (13) and Seville (9).

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 686 professional contacts with verified work emails tracked across these 258 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.