Company lists · Data refreshed November 2026

Top 22 Oil and gas wastewater contractors based in Spain

RevenueBase identified 83 company matches for oil and gas wastewater contractors associated with Spain as of November 2026 and tracks 2,735 professional contacts across them, including 227 with verified work emails. Barcelona is the largest hub.

This list covers company matches for oil and gas wastewater 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 4, 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 4, 2026 How this list was built
83Companies
2,735Contacts tracked
227Verified emails
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The 22 largest oil and gas wastewater contractors based in Spain

Ranked by team size
Top 22 of 83 company matches for oil and gas wastewater contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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 4, 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 4, 2026 · View company records in RevenueBase
2Exact matchCastellón De La Plana, SpainHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
3Exact matchPaterna, SpainHQ recorded Nov 4, 2026501-1,00049 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchValencia, SpainHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
5Exact matchSanta Perpètua De Mogoda, SpainHQ recorded Nov 4, 202651-20038 contacts →

Exact match

“Distiller is a leader in the treatment and management of industrial waste, as well as in the recovery of solvents and water treatment.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchSeville, SpainHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
7Exact matchOurense, SpainHQ recorded Nov 4, 2026201-50032 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 · Nov 4, 2026 · View company records in RevenueBase
8Exact matchIgualada, SpainHQ recorded Nov 4, 202611-5016 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 · Nov 4, 2026 · View company records in RevenueBase
9Exact matchGuarnizo, SpainHQ recorded Nov 4, 202651-20015 contacts →

Exact match

“Empresa familiar de segunda generación, pionera en el desarrollo de soluciones innovadoras en depuración y mantenimiento de aguas, con más de 25 años de experiencia y presencia en…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10Exact matchVigo, SpainHQ recorded Nov 4, 202611-5012 contacts →

Exact match

“Geseco Aguas S.A.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11Exact matchCartagena, SpainHQ recorded Nov 4, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12Exact matchTona, SpainHQ recorded Nov 4, 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 · Nov 4, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 4, 202611-5010 contacts →

Exact match

“PESA Medioambiente (antes Passavant España) es empresa especialista en Diseño, Construcción y O&M de instalaciones de tratamiento de aguas, así como soluciones para la…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14Exact matchGetxo, SpainHQ recorded Nov 4, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15Exact matchBarcelona, SpainHQ recorded Nov 4, 202611-506 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16Exact matchValdemoro, SpainHQ recorded Nov 4, 202611-506 contacts →

Exact match

“Aqua Resmat Ibérica forma parte del grupo MTA, una corporación fundada en 1960 especializada en aportar al mercado soluciones globales para el Control, Tratamiento y Depuración de…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17Exact matchGuardamar Del Segura, SpainHQ recorded Nov 4, 202611-504 contacts →

Exact match

“SIDAR es una empresa con sede en Guardamar del Segura, Alicante.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18Exact matchAranda De Duero, SpainHQ recorded Nov 4, 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 · Nov 4, 2026 · View company records in RevenueBase
19Exact matchValladolid, SpainHQ recorded Nov 4, 2026201-5003 contacts →

Exact match

“SOCAMEX se dedica desde hace más de 30 años a la gestión integral del ciclo del agua.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20Exact matchBarcelona, SpainHQ recorded Nov 4, 202611-502 contacts →

Exact match

“Fundada en 1980, Limpiezas Gimen SL es una empresa especializada en la gestión integral de aguas residuales urbanas, con gran experiencia y una trayectoria dilatada en el área…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21Exact matchAndosilla, SpainHQ recorded Nov 4, 202611-502 contacts →

Exact match

“En Rinacon gestionamos tus residuos industriales respetando el medioambiente.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22Exact matchMoncada Y Reixach, SpainHQ recorded Nov 4, 20261-101 contacts →

Exact match

“En el año 2.004 nace Domo Medioambiente con el objetivo de ofrecer un servicio técnico especializado en lavado, y tratamiento de las aguas derivadas, realizando proyectos a medida…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 22 of 83 oil and gas wastewater contractors based in Spain

See the full list, filter by size, metro and specialty, and access 227 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas wastewater contractors based in Spain at a glance

As of Nov 4, 2026
8.3%Verified-email coverage
33.0Average contacts per company
11-50Median size (employees)
4.8%Largest-city concentration · Barcelona
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
32
51-200
13
201-500
3
501-1,000
1
1,001-5,000
1
5,001-10,000
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 83 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 “oil and gas wastewater 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 227 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 4, 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 “oil and gas wastewater contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas wastewater contractors are there based in Spain?

RevenueBase identified 83 company matches for oil and gas wastewater 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?

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

Which city has the most oil and gas wastewater contractors?

Barcelona leads with 4 company records, followed by Madrid (4) and Cartagena (2).

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 227 professional contacts with verified work emails tracked across these 83 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 4, 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.