Company lists · Data refreshed September 2026

Top 25 Communications systems manufacturers based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 92 companies tracked

RevenueBase identified 92 communications systems manufacturers headquartered in Spain as of September 2026 and tracks 2,060 professional contacts across them, including 215 with verified work emails. Madrid is the largest hub.

This list covers communications systems 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 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

92Companies

2,060Contacts tracked

215Verified emails

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The 25 largest communications systems manufacturers based in Spain

Ranked by team size

Top 25 of 92 communications systems manufacturers 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 communications systems 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	Celestia TTI	Indirect evidence	Santander, SpainHQ checked Sep 16, 2026	51-200	570 contacts →
	Indirect evidence “CELESTIA TTI is an SME that works in the technological forefronts of space, military, telecommunications, science, and information technology sectors.” Source: RevenueBase Database · checked Sep 16, 2026
2	Teltronic	Strong evidence	Zaragoza, SpainHQ checked Sep 16, 2026	201-500	309 contacts →
	Strong evidence “For 50 years, Teltronic has been a world leader in the design and manufacturing of mission-critical radio communications equipment and systems.” Source: RevenueBase Database · checked Sep 16, 2026
3	ADTEL	Strong evidence	Molins De Rei, SpainHQ checked Sep 16, 2026	51-200	147 contacts →
	Strong evidence “ADTEL started its activity in 1993 and initially specialised in radiofrequency systems for sound broadcasting, television and radio communications.” Source: RevenueBase Database · checked Sep 16, 2026
4	Ambar Telecomunicaciones	Indirect evidence	Santander, SpainHQ checked Sep 16, 2026	201-500	126 contacts →
	Indirect 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
5	Deltacomgroup	Partial evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 16, 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 16, 2026
6	BTESA	Partial evidence	Leganes, SpainHQ checked Sep 16, 2026	51-200	65 contacts →
	Partial evidence “BROAD TELECOM S.A.(BTESA) is a Spanish high-tech company specialized in terrestrial and satellite broadcasting, telecommunications systems and services, and high power RF…” Source: RevenueBase Database · checked Sep 16, 2026
7	Radiotrans	Indirect evidence	Leganes, SpainHQ checked Sep 16, 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 16, 2026
8	Sistelec	Indirect evidence	Pamplona, SpainHQ checked Sep 16, 2026	11-50	46 contacts →
	Indirect evidence “Somos una compañía especializada en el mundo de las comunicaciones inalámbricas.” Source: RevenueBase Database · checked Sep 16, 2026
9	Acorde	Strong evidence	Santander, SpainHQ checked Sep 16, 2026	51-200	44 contacts →
	Strong evidence “ACORDE TECHNOLOGIES (ACORDE) is a leading designer & manufacturer of subsystems and components for Satellite and Microwave Communications including: BUCs, SSPAs, LNBs…” Source: RevenueBase Database · checked Sep 16, 2026
10	Arteixo Telecom	Indirect evidence	As Pontes, SpainHQ checked Sep 16, 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 16, 2026
11	Itelsis Group	Indirect evidence	Santiago De Compostela, SpainHQ checked Sep 16, 2026	51-200	34 contacts →
	Indirect 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 16, 2026
12	ISC	Indirect evidence	Barcelona, SpainHQ checked Sep 16, 2026	51-200	24 contacts →
	Indirect evidence “Conectamos tus proyectos.” Source: RevenueBase Database · checked Sep 16, 2026
13	Golmar Sistemas DE Comunicación S.A	Indirect evidence	Cornella De Llobregat, SpainHQ checked Sep 16, 2026	51-200	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
14	Commtia	Partial evidence	La Garriga, SpainHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “COMMTIA Systems S.” Source: RevenueBase Database · checked Sep 16, 2026
15	Tecco Sistemas AV	Indirect evidence	Zaragoza, SpainHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “Tecco comercializa, integra y diseña equipos y sistemas para la Comunicación Audiovisual y las Tecnologias de la Información aplicadas a la difusión digital del Video y del Audio.” Source: RevenueBase Database · checked Sep 16, 2026
16	Codipro	Indirect evidence	Pilas, SpainHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Somos un distribuidor de sistemas avanzados de telecomunicaciones con una amplia trayectoria en el sector.” Source: RevenueBase Database · checked Sep 16, 2026
17	Pihernz Comunicaciones	Indirect evidence	Sant Feliu De Llobregat, SpainHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “Pihernz Comunicaciones S.A.” Source: RevenueBase Database · checked Sep 16, 2026
18	Synergya Tech	Indirect evidence	Fuente Palmera, SpainHQ checked Sep 16, 2026	1-10	9 contacts →
	Indirect evidence “El Diseño, Desarrollo, Producción, Integración, Operación, Mantenimiento, Reparación, Comercialización De Sistemas, Soluciones Y Productos Que Hagan Uso De Las Tecnologías De La…” Source: RevenueBase Database · checked Sep 16, 2026
19	Góriz Telecomunicaciones	Indirect evidence	Huesca, SpainHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “En Góriz Telecomunicaciones somos más que una empresa del sector: somos el socio tecnológico en el que tu negocio puede apoyarse para crecer con seguridad y eficiencia.” Source: RevenueBase Database · checked Sep 16, 2026
20	Dekbera Communications S.L	Indirect evidence	Adeje, SpainHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence “Dekbera Comunications SL es una empresa de telecomunicaciones con experiencia de más de 25 años en el sector en comunicaciones críticas para el negocio y la misión crítica…” Source: RevenueBase Database · checked Sep 16, 2026
21	Telcom, S.A.U	Indirect evidence	Alcobendas, SpainHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence “Con oficinas centrales en Alcobendas (Madrid), proporcionamos productos, soluciones, asistencia técnica y servicios de ingeniería relacionados con las Radiocomunicaciones, y…” Source: RevenueBase Database · checked Sep 16, 2026
22	Netaselcom SL	Indirect evidence	Terrassa, SpainHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “NETASELCOM SL, distribuye equipos electrónicos y de telecomunicaciones y sus componentes.” Source: RevenueBase Database · checked Sep 16, 2026
23	Todo Telecom S.L	Indirect evidence	Denia, SpainHQ checked Sep 16, 2026	11-50	3 contacts →
	Indirect evidence “We are importers and exporters of telecommunications equipment for professionals: ISP / Networking / Security / Terrestrial and satellite TV / access control / Telephony and much…” Source: RevenueBase Database · checked Sep 16, 2026
24	Miliwatts Electronica S.L	Indirect evidence	Mataro, SpainHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Empresa de distribución de componentes y equipos electrónicos, telecomunicaciones, accesorios informáticos y seguridad.” Source: RevenueBase Database · checked Sep 16, 2026
25	Tetralogik	Indirect evidence	Bilbao, SpainHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Empresa dedicada a las Telecomunicaciones con especialización en Radiocomunicaciones,Sistemas de Video, Centros de Control,Modificación de vehículos para servicios de…” 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: communications systems 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 communications systems manufacturers.
Partial evidence: Its own public description names part of communications systems manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name communications systems 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 92 communications systems manufacturers based in Spain

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Communications systems manufacturers based in Spain at a glance

As of Sep 16, 2026

10.4%Verified-email coverage

22.4Average contacts per company

11-50Median size (employees)

15.2%Largest-city concentration · Madrid

Sep 16, 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 92 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 communications systems 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 “communications systems 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 communications systems 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 communications systems 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, 215 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.

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 communications systems 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 communications systems manufacturers are there based in Spain?

RevenueBase identified 92 communications systems 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?

Celestia TTI, headquartered in Santander, tops this list with the largest team on record.

Which city has the most communications systems manufacturers?

Madrid leads with 14 headquartered companies, followed by Barcelona (9) and Zaragoza (4).

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 215 verified decision-maker contacts tracked across these 92 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.