Company lists · Data refreshed September 2026

Top 25 Telecommunications infrastructure manufacturers based in Spain

Name: Telecommunications infrastructure manufacturers based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 340 companies tracked

RevenueBase identified 340 telecommunications infrastructure manufacturers headquartered in Spain as of September 2026 and tracks 5,637 professional contacts across them, including 420 with verified work emails. Madrid is the largest hub.

This list covers telecommunications infrastructure manufacturers 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 19, 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 19, 2026 86% judged on-target in blind review

340Companies

5,637Contacts tracked

420Verified emails

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The 25 largest telecommunications infrastructure manufacturers based in Spain

Ranked by team size

Top 25 of 340 telecommunications infrastructure manufacturers based in Spain, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications infrastructure manufacturers: 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	OFG	Partial evidence	Córdoba, SpainHQ checked Sep 19, 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 19, 2026
2	Comfica Soluciones Integrales S.L	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 19, 2026	201-500	684 contacts →
	Indirect 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 19, 2026
3	Televes	Strong evidence	Santiago De Compostela, SpainHQ checked Sep 19, 2026	501-1,000	306 contacts →
	Strong evidence “Televes is a technology company that designs, develops and manufactures solutions for telecommunications and industrial LED lighting infrastructures deployed in homes, buildings…” Source: RevenueBase Database · checked Sep 19, 2026
4	Cad&lan	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	186 contacts →
	Partial evidence “Cad & Lan was founded in 1990 as a digital infrastructure and communications company.” Source: RevenueBase Database · checked Sep 19, 2026
5	Cableworld	Indirect evidence	Alicante, SpainHQ checked Sep 19, 2026	201-500	132 contacts →
	Indirect evidence “Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Source: RevenueBase Database · checked Sep 19, 2026
6	Instelca	Indirect evidence	Málaga, SpainHQ checked Sep 19, 2026	201-500	118 contacts →
	Indirect 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 19, 2026
7	Cableven	Indirect evidence	Málaga, SpainHQ checked Sep 19, 2026	501-1,000	103 contacts →
	Indirect evidence “Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Source: RevenueBase Database · checked Sep 19, 2026
8	Electroson Telecomunicación S.A	Strong evidence	Villaviciosa De Odón, SpainHQ checked Sep 19, 2026	201-500	98 contacts →
	Strong evidence “We invent, develop and manufacture passive elements for telecommunications networks.” Source: RevenueBase Database · checked Sep 19, 2026
9	MDTEL	Strong evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	93 contacts →
	Strong evidence “mdtel is a manufacturer and integrator of corporate telecommunications solutions for business environments with more than 20 years of experience.” Source: RevenueBase Database · checked Sep 19, 2026
10	Cablescom	Indirect evidence	Zaragoza, SpainHQ checked Sep 19, 2026	201-500	92 contacts →
	Indirect evidence “Cablescom es una de las principales compañías europeas dedicadas al diseño, fabricación y comercialización de cables de telecomunicaciones, señalización y fibra óptica.” Source: RevenueBase Database · checked Sep 19, 2026
11	Coyser SA	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	88 contacts →
	Indirect evidence “Coyser S.A.” Source: RevenueBase Database · checked Sep 19, 2026
12	Afr-Ix Telecom	Strong evidence	Sant Adrià De Besòs, SpainHQ checked Sep 19, 2026	51-200	85 contacts →
	Strong evidence “AFR-IX telecom is a global telecommunications infrastructure group with licensed operations and infrastructure presence across Europe, Africa, Middle East and the Americas…” Source: RevenueBase Database · checked Sep 19, 2026
13	Deltacomgroup	Partial evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 19, 2026	201-500	81 contacts →
	Partial evidence “Your Network is Our Business DeltaComGroup is a global supplier of top quality telecommunications systems, components and services.” Source: RevenueBase Database · checked Sep 19, 2026
14	B2com	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	72 contacts →
	Indirect evidence “Premium Numbers, operador de telecomunicaciones inscrito en la CMT y con numeración propia, fue fundada en el año 2.001, siendo una de las empresas del sector de la telefonía de…” Source: RevenueBase Database · checked Sep 19, 2026
15	Datatronics	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	63 contacts →
	Indirect evidence “Datatronics is a seasoned Telco System Integrator with over thirty years of experience supporting communication service providers, from small operators and MVNOs to large…” Source: RevenueBase Database · checked Sep 19, 2026
16	Radiotrans	Indirect evidence	Leganes, SpainHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence “RADIOTRANS es una compañía privada transnacional dedicada a la ingeniería, comercialización, suministro, instalación y puesta en marcha y servicio postventa de equipos y sistemas…” Source: RevenueBase Database · checked Sep 19, 2026
17	Gotor Comunicaciones	Indirect evidence	Zaragoza, SpainHQ checked Sep 19, 2026	51-200	45 contacts →
	Indirect 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 19, 2026
18	Cartronic Group	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	45 contacts →
	Indirect evidence “Mayorista importador/exportador informático.” Source: RevenueBase Database · checked Sep 19, 2026
19	Infopyme Comunicaciones	Indirect evidence	Zaragoza, SpainHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “English below) Fundada en 1998 para atender al mercado de las telecomunicaciones públicas, y disponiendo de unas instalaciones de 1.500 m2, destinadas al diseño y fabricación…” Source: RevenueBase Database · checked Sep 19, 2026
20	Arteixo Telecom	Indirect evidence	As Pontes, SpainHQ checked Sep 19, 2026	51-200	41 contacts →
	Indirect evidence “Arteixo Telecom se constituye bajo su actual denominación social en 1996, aunque su trayectoria industrial bajo otras denominaciones sociales se remonta al año 1972, demostrando…” Source: RevenueBase Database · checked Sep 19, 2026
21	Ikusi España	Indirect evidence	San Sebastíán, SpainHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “Ikusi provee unas redes de comunicaciones eficientes y robustas.” Source: RevenueBase Database · checked Sep 19, 2026
22	TDI Sistemas S.L	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	37 contacts →
	Indirect evidence “TDI Sistemas es una compañía de capital privado íntegramente español.” Source: RevenueBase Database · checked Sep 19, 2026
23	Itelsis Group	Partial evidence	Santiago De Compostela, SpainHQ checked Sep 19, 2026	51-200	34 contacts →
	Partial evidence “ITELSIS is a Business Group focusing its activity on: the Telecommunications sector, designing and manufacturing its own products; the delivery of professional services; and in…” Source: RevenueBase Database · checked Sep 19, 2026
24	Olin Group	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	n/a	32 contacts →
	Partial evidence “At Olin Group we are experts in telecommunications services in the regional market; both for wholesalers, with our high-speed Olinfra network, and for retailers through the…” Source: RevenueBase Database · checked Sep 19, 2026
25	Electrotel Barcelona	Indirect evidence	Badalona, SpainHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “ElectroTel Barcelona le ofrece soluciones integradas y completas para sus telecomunicaciones de empresa.” Source: RevenueBase Database · checked Sep 19, 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: telecommunications infrastructure manufacturers. 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 telecommunications infrastructure manufacturers.
Partial evidence: Its own public description names part of telecommunications infrastructure manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications infrastructure manufacturers. 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 340 telecommunications infrastructure manufacturers based in Spain

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Telecommunications infrastructure manufacturers based in Spain at a glance

As of Sep 19, 2026

7.5%Verified-email coverage

16.6Average contacts per company

11-50Median size (employees)

18.8%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

131

11-50

145

51-200

201-500

501-1,000

1,001-5,000

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 340 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 telecommunications infrastructure manufacturers, 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 “telecommunications infrastructure manufacturers”. 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 telecommunications infrastructure manufacturers), 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 telecommunications infrastructure manufacturers, 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, 420 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 19, 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.

Telecommunications infrastructure manufacturers by metro

Telecommunications infrastructure manufacturers in Madrid64

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 telecommunications infrastructure manufacturers, 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 telecommunications infrastructure manufacturers are there based in Spain?

RevenueBase identified 340 telecommunications infrastructure manufacturers 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?

OFG, headquartered in Cordoba, tops this list with the largest team on record.

Which city has the most telecommunications infrastructure manufacturers?

Madrid leads with 64 headquartered companies, followed by Barcelona (20) and Malaga (9).

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 420 verified decision-maker contacts tracked across these 340 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 19, 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.