Company lists · Data refreshed October 2026

Top 25 Electrical underground contractors based in Spain

Name: Electrical underground contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 183 companies tracked

RevenueBase identified 183 company matches for electrical underground contractors associated with Spain as of October 2026 and tracks 2,150 professional contacts across them, including 84 with verified work emails. Madrid is the largest hub.

This list covers company matches for electrical underground 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 October 12, 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 Oct 12, 2026 How this list was built

183Companies

2,150Contacts tracked

84Verified emails

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The 25 largest electrical underground contractors based in Spain

Ranked by team size

Top 25 of 183 company matches for electrical underground contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Comfica Soluciones Integrales S.L	Exact match	Fuenlabrada, SpainHQ recorded Oct 12, 2026	201-500	720 contacts →
	Exact match “Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Flulle	Exact match	Fuenlabrada, SpainHQ recorded Oct 12, 2026	51-200	58 contacts →
	Exact match “FLULLE surge en 1990 en Fuenlabrada (Madrid) como empresa de instalaciones eléctricas.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	GAROC	Exact match	Ciudad Real, SpainHQ recorded Oct 12, 2026	201-500	45 contacts →
	Exact match “GAROC (GRUPO DE ARQUITECTURA Y OBRA CIVIL), nace en mayo de 2003 en Ciudad Real donde tiene su sede Social.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	TDI Sistemas S.L	Exact match	Madrid, SpainHQ recorded Oct 12, 2026	51-200	40 contacts →
	Exact match “TDI Sistemas es una compañía de capital privado íntegramente español.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Rugar S.L	Exact match	Alboraya, SpainHQ recorded Oct 12, 2026	51-200	33 contacts →
	Exact match “La empresa fue fundada en su actual estructura de sociedad limitada (después de unos años de andadura con otra estructura empresarial), por la familia Ruiz – Juliá, en enero del…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Gruconsa	Exact match	Madrid, SpainHQ recorded Oct 12, 2026	51-200	31 contacts →
	Exact match “Grupo Conector S.A.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Sierra Ingeniería Eléctrica	Exact match	Coslada, SpainHQ recorded Oct 12, 2026	51-200	31 contacts →
	Exact match “SIERRA Ingeniería Eléctrica empresa de reconocida trayectoria en los sectores de las instalaciones eléctricas, especiales, ingeniería, mantenimiento y montaje de cuadros…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Ogisa Infraestructuras S.A	Exact match	Zaragoza, SpainHQ recorded Oct 12, 2026	51-200	22 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Grupo Datesa	Exact match	Madrid, SpainHQ recorded Oct 12, 2026	51-200	21 contacts →
	Exact match “Datesa Soluciones S.L, es una empresa que se fundo el 26 de Abril de 2011, dedicada fundamentalmente a la instalación y el mantenimiento de electricidad, voz y datos, fibra…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	E Gedesel	Exact match	Zaragoza, SpainHQ recorded Oct 12, 2026	11-50	17 contacts →
	Exact match “Con más de 40 años de experiencia en el sector, nuestros servicios son una garantía de satisfacción.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Villa Flores Martín	Exact match	Carmona, SpainHQ recorded Oct 12, 2026	11-50	14 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 · Oct 12, 2026 · View company records in RevenueBase
12	Ibbe Electricidad, SL	Exact match	Montcada I Reixac, SpainHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “IBBE Electricidad, S.A.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Segade Saelco SA	Exact match	Ourense, SpainHQ recorded Oct 12, 2026	51-200	13 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 · Oct 12, 2026 · View company records in RevenueBase
14	Proyelec	Exact match	Ciudad Real, SpainHQ recorded Oct 12, 2026	11-50	13 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 · Oct 12, 2026 · View company records in RevenueBase
15	Montajes Eléctricos Tarragona, S.A	Exact match	Tarragona, SpainHQ recorded Oct 12, 2026	51-200	12 contacts →
	Exact match “Una de las empresas de montaje eléctrico más antigua de la provincia de Tarragona.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Estelec Instalaciones Integrales, SL	Exact match	Sabadell, SpainHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Estelec centra su actividad en las Instalaciones integrales de edificios, locales e industria.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Monser Electricidad S.L	Exact match	Paiporta, SpainHQ recorded Oct 12, 2026	51-200	11 contacts →
	Exact match “En Monser Electricidad S.l.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Cecocs	Exact match	Colmenar Viejo, SpainHQ recorded Oct 12, 2026	51-200	10 contacts →
	Exact match “CECOCS, Empresa dedicada a la instalación de Telecomunicaciones, Seguridad, Electricidad, Construcción y Suministros” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Electrificaciones Sancho S.L	Exact match	Morón De La Frontera, SpainHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “Somos una empresa situada en la localidad sevillana de Morón de la Frontera con más de 70 años de experiencia dentro del sector eléctrico.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Esbain,s.A	Exact match	Getafe, SpainHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Especializada en el Montaje y Mantenimiento de Instalaciones de A.T, M.T.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Alumbra Instalaciones SL	Exact match	Coruña, SpainHQ recorded Oct 12, 2026	11-50	8 contacts →
	Exact match “Alumbra Instalaciones es una empresa dedicada a la realización y mantenimiento de instalaciones eléctricas y Telecomunicaciones.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Infralect Power Events	Exact match	Barberà Del Vallès, SpainHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “INFRALECT POWER EVENTS, S.A.U.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Viman Services And Sistems SL	Exact match	Alfafar, SpainHQ recorded Oct 12, 2026	51-200	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Electricidad Guria, S.L	Exact match	Eibar, SpainHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “Somos expertos en Instalaciones Eléctricas Electricidad Guria nace en 1973.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	DEL Valle Aguayo	Exact match	Vitoria-gasteiz, SpainHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “Del Valle Aguayo es una empresa de servicios dedicada a las instalaciones y montajes eléctricos en industrias, sector público, comercio y vivienda, ubicada en Vitoria-Gasteiz (…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electrical underground contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 183 electrical underground contractors based in Spain

See the full list, filter by size, metro and specialty, and access 84 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical underground contractors based in Spain at a glance

As of Oct 12, 2026

3.9%Verified-email coverage

11.7Average contacts per company

11-50Median size (employees)

7.7%Largest-city concentration · Madrid

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 183 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 “electrical underground 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 84 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 October 12, 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 “electrical underground contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical underground contractors are there based in Spain?

RevenueBase identified 183 company matches for electrical underground contractors associated with Spain as of October 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?

Comfica Soluciones Integrales S.L tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical underground contractors?

Madrid leads with 14 company records, followed by Zaragoza (6) and Barcelona (5).

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 84 professional contacts with verified work emails tracked across these 183 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 October 12, 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.