Company lists · Data refreshed November 2026

Top 25 Hydroelectric power plant services based in Spain

RevenueBase identified 378 company matches for hydroelectric power plant services associated with Spain as of November 2026 and tracks 5,175 professional contacts across them, including 439 with verified work emails. Madrid is the largest hub.

This list covers company matches for hydroelectric power plant services 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
378Companies
5,175Contacts tracked
439Verified emails
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The 25 largest hydroelectric power plant services based in Spain

Ranked by team size
Top 25 of 378 company matches for hydroelectric power plant services 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, 20261,001-5,000254 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
2Exact matchHuarte, SpainHQ recorded Nov 6, 202651-200230 contacts →

Exact match

“Somos una compañía especializada en instalación y mantenimiento de aerogeneradores, plantas fotovoltáicas e instalaciones eléctricas en edificios y plantas industriales.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAlcorcón, SpainHQ recorded Nov 6, 2026501-1,000199 contacts →

Exact match

“En Tradivel llevamos más de 20 años ofreciendo una amplia gama de servicios energéticos poniendo foco en la calidad del servicio y la satisfacción de nuestros clientes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPaterna, SpainHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Vestel Ingenieros es una empresa con 20 años de experiencia que tiene el propósito de convertirse en la ingeniería eléctrica nº1 de España.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchValencia/valència, SpainHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“Somos una empresa de servicios dedicada a ofrecer soluciones en el área de: SERVICIO ESPECIALIZADO DE PERSONAL SERVICIOS DE CAMPO Evaluación, Inspección y Mantenimiento de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchValencia, SpainHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Monrabal, empresa referente en el sector de la energía, con más de 50 años de experiencia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500108 contacts →

Exact match

“Engineering company based in Madrid, Spain with over 40 years of experience in the fields of petrochemical and industrial engineering, conventional and nuclear power plants…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAviles, SpainHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Electroinnova instalaciones y mantenimientos S.L es una empresa asturiana con una clara voación de expansión internacional que nace con el objetivo de ofrecer y solucionar…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPaterna, SpainHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“GENERA Q es una empresa especializada en el diseño, ejecución y mantenimiento de instalaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBarcelona, SpainHQ recorded Nov 6, 2026201-50075 contacts →

Exact match

“LYMET, con más de 30 años de existencia, es la sociedad de cabecera de un grupo de empresas, formado actualmente por la propia LYMET, por LYMET Energía, LYMET Obra Civil, LYMET…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Agustín De Guadalix, SpainHQ recorded Nov 6, 202611-5071 contacts →

Exact match

“Empresa dedicada a Instalaciones Eléctricas/energéticas tanto a particulares como grandes empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-50069 contacts →

Exact match

“Dipicell es una empresa de servicios industriales especializada en electricidad, instrumentación, sistemas de control y medio ambiente.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGijón, SpainHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“Asistencia Total en Mantenimiento España S.L.U.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Grupo CARTAGO desarrolla servicios de ingeniería y de dirección y supervisión de obra en la construcción y puesta en marcha de plantas industriales, petroquímicas, centrales…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchToledo., SpainHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Over 45 years endorse us in the Power Sector with advanced solutions in the manufacture and distribution of electrical equipment for medium and high voltage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchValladolid, SpainHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“SYLTEC es una empresa independiente, constituída con el objetivo de ofrecer servicios integrales de ingeniería, consultoría y formación a nivel nacional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVigo, SpainHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“CONELEC, S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Opex Energy is an engineering and technical assistance company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSiero, SpainHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Electricidad Llano se crea en el año 1990 para dar servicio a las crecientes necesidades en instalaciones eléctricas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLes Franqueses Del Valles, SpainHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Empresa dedicada a las instalaciones electricas, fontaneria, equipos a presión.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchVilafranca Del Penedès, SpainHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Güell es una de las principales empresas de servicios para las industrias y el sector público de Cataluña y la Comunidad Valenciana.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLas Rozas De Madrid, SpainHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“i3 Ingenieros es una compañía especializada en ingeniería, instalaciones y mantenimiento, con un modelo de trabajo integral orientado al control técnico, la ejecución real y la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBadalona, SpainHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“EDA Instalaciones y Energía S.L, es una empresa con amplia experiencia en el sector de las instalaciones integrales, mantenimientos y estudios de eficiencia energética.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBaena, SpainHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“ITECLA es una ingeniería especializada en infraestructuras eléctricas de alta y media tensión y en proyectos de energías renovables a escala utility.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchA Coruña, SpainHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“TÉCNICA4 se define como una empresa principalmente de servicios, presente en gran parte de las actividades relacionadas con la gestión integral y de ejecución de proyectos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 378 hydroelectric power plant services based in Spain

See the full list, filter by size, metro and specialty, and access 439 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydroelectric power plant services based in Spain at a glance

As of Nov 6, 2026
8.5%Verified-email coverage
13.7Average contacts per company
11-50Median size (employees)
9.5%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
125
11-50
174
51-200
57
201-500
8
501-1,000
4
1,001-5,000
4

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 378 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 “hydroelectric power plant services” 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 439 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.

Hydroelectric power plant services by metro

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 “hydroelectric power plant services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydroelectric power plant services are there based in Spain?

RevenueBase identified 378 company matches for hydroelectric power plant services 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?

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

Which city has the most hydroelectric power plant services?

Madrid leads with 36 company records, followed by Barcelona (14) and Gijon (7).

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 439 professional contacts with verified work emails tracked across these 378 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.