Company lists · Data refreshed November 2026

Top 25 Utility service contractors based in Spain

RevenueBase identified 136 company matches for utility service contractors associated with Spain as of November 2026 and tracks 5,053 professional contacts across them, including 343 with verified work emails. Madrid is the largest hub.

This list covers company matches for utility service 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
136Companies
5,053Contacts tracked
343Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest utility service contractors based in Spain

Ranked by team size
Top 25 of 136 company matches for utility service 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, 20261,001-5,000863 contacts →

Exact match

“Created in 1919, SEMI is a leading company in the electricity and industrial sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGetafe, SpainHQ recorded Nov 6, 20261,001-5,000707 contacts →

Exact match

“Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000528 contacts →

Exact match

“MASA interviene en toda la cadena de actividades en la vida de las instalaciones e infraestructuras, desde su fase de proyecto, hasta la construcción y montaje de la instalación…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000525 contacts →

Exact match

“En Lantania hacemos realidad grandes infraestructuras de transporte, agua y energía con el entusiasmo de una empresa joven y la solidez que nos aporta la experiencia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBilbo, SpainHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“TECSA Empresa Constructora, S.A, nacida en 1.971 en el entorno ferroviario, es hoy en día una referencia en la construcción y mantenimiento de infraestructuras del transporte.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Grupo Maipú nace en España en 1995.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact 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
10Exact 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
11Exact 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
12Exact matchGranada, SpainHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“GRULOP es una constructora de ámbito nacional especializada en ejecutar proyectos de obra civil, infraestructuras y edificación de alta complejidad, transformando cada reto…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“TDI Sistemas es una compañía de capital privado íntegramente español.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“CGM Telecomunicaciones, fundada en 1993, es una empresa de ingeniería versátil enfocada al desarrollo de servicios de valor añadido que cubran las necesidades de los clientes, a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchZaragoza, SpainHQ recorded Nov 6, 202651-20023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMálaga, SpainHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Empresa constructora en Málaga con más de 40 años de experiencia en la realización de proyectos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCoslada, SpainHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Somos una compañía especializada en ingeniería, fabricación, instalación y mantenimiento de infraestructuras críticas para los sectores ferroviario y energético.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSariñena, SpainHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“Alonso Luz y Gas, especialistas en instalaciones de gas en pisos, casas y edificios.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLas Torres De Cotillas, SpainHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“IPEJMA SERVICIOS ELECTRICOS SL is a construction company based out of Carril Los Matias n8, La Loma - Las Torres de Cotillas Murcia, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCarmona, SpainHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Para conocer los orígenes de Villa Flores Martín debemos remontarnos al año 1981: cuando tres profesionales con larga experiencia en el montaje eléctrico se unieron para crear la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchJaén, SpainHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“La empresa PAVIMENTACIONES MORALES, S.L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOurense, SpainHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Somos una empresa con más de 40 años de experiencia en la construcción de Líneas Eléctricas Aéreas y Subterráneas de Alta Tensión, en constante crecimiento y desarrollo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPaiporta, SpainHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“En Monser Electricidad S.l.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCiudad Real, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Esta empresa nace a principios de los años 80, con carácter unipersonal, dedicada al montaje de instalaciones eléctricas, públicas y privadas, principalmente de media y baja…”

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

Showing 25 of 136 utility service contractors based in Spain

See the full list, filter by size, metro and specialty, and access 343 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Utility service contractors based in Spain at a glance

As of Nov 6, 2026
6.8%Verified-email coverage
37.2Average contacts per company
11-50Median size (employees)
8.8%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
64
51-200
26
201-500
3
501-1,000
2
1,001-5,000
6

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 136 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 “utility service 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 343 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 “utility service contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many utility service contractors are there based in Spain?

RevenueBase identified 136 company matches for utility service 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?

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

Which city has the most utility service contractors?

Madrid leads with 12 company records, followed by Barcelona (11) and Gijon (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 343 professional contacts with verified work emails tracked across these 136 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.

Ready to reach these companies? Verified emails and direct dials for all 136 utility service contractors based in Spain. Start with a free account, no credit card.

Download this list →

Related 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 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.