Company lists · Data refreshed September 2026

Top 25 Electrical contractors for telecom based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 995 companies tracked

RevenueBase identified 995 electrical contractors for telecom headquartered in Spain as of September 2026 and tracks 10,316 professional contacts across them, including 552 with verified work emails. Madrid is the largest hub.

This list covers electrical contractors for telecom headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

995Companies

10,316Contacts tracked

552Verified emails

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The 25 largest electrical contractors for telecom based in Spain

Ranked by team size

Top 25 of 995 electrical contractors for telecom based in Spain, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrical contractors for telecom: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ZENER	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	5,001-10,000	1,207 contacts →
	Indirect evidence “En Zener crecemos acelerando el crecimiento de nuestros clientes.” Source: RevenueBase Database · checked Sep 16, 2026
2	OFG	Partial evidence	Córdoba, SpainHQ checked Sep 16, 2026	1,001-5,000	701 contacts →
	Partial evidence “OFG is an international company with more than 20 years of experience in the telecommunications sector.” Source: RevenueBase Database · checked Sep 16, 2026
3	Comfica Soluciones Integrales S.L	Strong evidence	Fuenlabrada, SpainHQ checked Sep 16, 2026	201-500	684 contacts →
	Strong evidence “Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Source: RevenueBase Database · checked Sep 16, 2026
4	Insyte Instalaciones	Partial evidence	Getafe, SpainHQ checked Sep 16, 2026	1,001-5,000	628 contacts →
	Partial evidence “Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Source: RevenueBase Database · checked Sep 16, 2026
5	Inet Smart ITC	Indirect evidence	Cornellà De Llobregat, SpainHQ checked Sep 16, 2026	201-500	139 contacts →
	Indirect evidence “Inet es una empresa del grupo AXIS CORPORATE especializada en procesos de despliegue y mantenimiento de infraestructuras tecnológicas y comunicaciones para empresas.” Source: RevenueBase Database · checked Sep 16, 2026
6	Ambar Telecomunicaciones	Partial evidence	Santander, SpainHQ checked Sep 16, 2026	201-500	126 contacts →
	Partial evidence “Ámbar Telecomunicaciones es una empresa de ingeniería especializada en la integración global de sistemas de comunicación, que centra su actividad en el diseño, instalación y…” Source: RevenueBase Database · checked Sep 16, 2026
7	Osmos Sistemas Eléctricos	Indirect evidence	A Coruña, SpainHQ checked Sep 16, 2026	201-500	121 contacts →
	Indirect evidence “LA EMPRESA Y SUS VALORES Osmos tiene por misión la prestación de servicios eléctricos, abarcando la instalación desde su concepción, realizando el montaje y manteniendo las…” Source: RevenueBase Database · checked Sep 16, 2026
8	Instelca	Partial evidence	Málaga, SpainHQ checked Sep 16, 2026	201-500	118 contacts →
	Partial evidence “El Grupo INSTELCA es proveedor global de servicios de Telecomunicaciones, Redes e Informática con más de 30 años de experiencia y con una clara orientación al clientes que nos ha…” Source: RevenueBase Database · checked Sep 16, 2026
9	Cableven	Partial evidence	Málaga, SpainHQ checked Sep 16, 2026	501-1,000	103 contacts →
	Partial evidence “Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Source: RevenueBase Database · checked Sep 16, 2026
10	Grupo Lasser	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	201-500	88 contacts →
	Indirect evidence “We are an expert service company in installation and technical maintenance in Companies, Communities and Homes.” Source: RevenueBase Database · checked Sep 16, 2026
11	Iquord	Indirect evidence	Aviles, SpainHQ checked Sep 16, 2026	51-200	85 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
12	Electrimega S.L	Partial evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 16, 2026	51-200	67 contacts →
	Partial evidence “Con más de veinte años de experiencia en el montaje y mantenimiento de instalaciones eléctricas, telecomunicaciones, climatización, protección contra incendios y extintores, cuyo…” Source: RevenueBase Database · checked Sep 16, 2026
13	Flulle	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 16, 2026	51-200	66 contacts →
	Indirect evidence “FLULLE surge en 1990 en Fuenlabrada (Madrid) como empresa de instalaciones eléctricas.” Source: RevenueBase Database · checked Sep 16, 2026
14	Lynka Global	Partial evidence	Málaga, SpainHQ checked Sep 16, 2026	51-200	56 contacts →
	Partial evidence “LYNKA GLOBAL es un grupo de empresas de base tecnológica centrado en la realización de actividades Industriales y de Telecomunicaciones en el ámbito de la Ingeniería, la…” Source: RevenueBase Database · checked Sep 16, 2026
15	Elecam	Indirect evidence	San Agustín De Guadalix, SpainHQ checked Sep 16, 2026	11-50	56 contacts →
	Indirect evidence “Empresa dedicada a Instalaciones Eléctricas/energéticas tanto a particulares como grandes empresas.” Source: RevenueBase Database · checked Sep 16, 2026
16	Tecmelec	Indirect evidence	Boadilla Del Monte, SpainHQ checked Sep 16, 2026	51-200	54 contacts →
	Indirect evidence “Tecmelec es una empresa especializada en integrar servicios de ingeniería para instalaciones eléctricas en proyectos singulares.” Source: RevenueBase Database · checked Sep 16, 2026
17	Elecox	Indirect evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 16, 2026	51-200	52 contacts →
	Indirect evidence “Elecox es una compañía que ofrece instalaciones eléctricas y mantenimiento integral a superficies comerciales, hipermercados, supermercados, edificios singulares, naves logística…” Source: RevenueBase Database · checked Sep 16, 2026
18	Gotor Comunicaciones	Partial evidence	Zaragoza, SpainHQ checked Sep 16, 2026	51-200	45 contacts →
	Partial evidence “Ingeniería, Consultoría e Instalación de Telecomunicaciones Trabajamos a nivel local, regional y nacional tanto para pequeñas y medianas empresas como para grandes organizaciones.” Source: RevenueBase Database · checked Sep 16, 2026
19	Electricidad Tenerife S.L	Indirect evidence	Santa Cruz De Tenerife, SpainHQ checked Sep 16, 2026	11-50	44 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
20	Montajes DE Electricidad Moya	Indirect evidence	Almería, SpainHQ checked Sep 16, 2026	51-200	43 contacts →
	Indirect evidence “Proporcionamos un servicio integral que abarca desde el diseño e ingeniería hasta el mantenimiento de instalaciones pasando por todas las fases de asesoramiento, obra, ejecución y…” Source: RevenueBase Database · checked Sep 16, 2026
21	LLANO	Partial evidence	Siero, SpainHQ checked Sep 16, 2026	51-200	40 contacts →
	Partial evidence “Electricidad Llano se crea en el año 1990 para dar servicio a las crecientes necesidades en instalaciones eléctricas.” Source: RevenueBase Database · checked Sep 16, 2026
22	Tecmo Instalaciones, Obras Y Servicios, S.A. Tecmo	Partial evidence	Paterna, SpainHQ checked Sep 16, 2026	51-200	38 contacts →
	Partial evidence “Tecmo nace con el firme propósito de proporcionar servicios de instalaciones eléctricas, tanto de Alta como Baja tensión, Telecomunicaciones e Instalaciones Especiales mediante la…” Source: RevenueBase Database · checked Sep 16, 2026
23	Conelec S.A	Indirect evidence	Vigo, SpainHQ checked Sep 16, 2026	51-200	38 contacts →
	Indirect evidence “CONELEC, S.A.” Source: RevenueBase Database · checked Sep 16, 2026
24	Mattelco	Indirect evidence	Sabadell, SpainHQ checked Sep 16, 2026	51-200	37 contacts →
	Indirect evidence “Confiamos en que nuestros valores y filosofía nos van a llevar muy lejos.” Source: RevenueBase Database · checked Sep 16, 2026
25	TDI Sistemas S.L	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	37 contacts →
	Indirect evidence “TDI Sistemas es una compañía de capital privado íntegramente español.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: electrical contractors for telecom. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names electrical contractors for telecom.
Partial evidence: Its own public description names part of electrical contractors for telecom, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical contractors for telecom. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 995 electrical contractors for telecom based in Spain

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Electrical contractors for telecom based in Spain at a glance

As of Sep 16, 2026

5.4%Verified-email coverage

10.4Average contacts per company

11-50Median size (employees)

10.3%Largest-city concentration · Madrid

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

448

11-50

410

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 995 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical contractors for telecom, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “electrical contractors for telecom”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names electrical contractors for telecom), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among electrical contractors for telecom, and records with no verified work email. Companies headquartered outside Spain are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 552 across the full list. 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 September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Electrical contractors for telecom by metro

Electrical contractors for telecom in Madrid102
Electrical contractors for telecom in Barcelona32

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names electrical contractors for telecom, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many electrical contractors for telecom are there based in Spain?

RevenueBase identified 995 electrical contractors for telecom headquartered in Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ZENER, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most electrical contractors for telecom?

Madrid leads with 102 headquartered companies, followed by Barcelona (32) and Malaga (21).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 552 verified decision-maker contacts tracked across these 995 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.