Company lists · Data refreshed September 2026

Top 25 Telecommunications security services based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 169 companies tracked

RevenueBase identified 169 telecommunications security services headquartered in Spain as of September 2026 and tracks 2,502 professional contacts across them, including 206 with verified work emails. Madrid is the largest hub.

This list covers telecommunications security services 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 29, 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 29, 2026 86% judged on-target in blind review

169Companies

2,502Contacts tracked

206Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest telecommunications security services based in Spain

Ranked by team size

Top 25 of 169 telecommunications security services based in Spain, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications security services: 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	Alhambra IT	Indirect evidence	Madrid, SpainHQ checked Sep 29, 2026	201-500	229 contacts →
	Indirect evidence “Alhambra es una compañía IT que ayuda a cualquier tipo de organización a proteger sus datos, sus comunicaciones y sus procesos contra todo tipo de incidentes a través de Servicios…” Source: RevenueBase Database · checked Sep 29, 2026
2	Sofistic Cybersecurity	Partial evidence	Castellón De La Plana, SpainHQ checked Sep 29, 2026	201-500	110 contacts →
	Partial evidence “IT Security Consulting and Deployment- Sofistic is a cybersecurity company, born from researchers in this field, with offices in USA, Spain, Panama, Colombia, Chile and the…” Source: RevenueBase Database · checked Sep 29, 2026
3	ITM Global	Indirect evidence	Cartes, SpainHQ checked Sep 29, 2026	201-500	82 contacts →
	Indirect evidence “ITM Global es una empresa dedicada al mundo de las nuevas tecnologías, seguridad y las telecomunicaciones, abarcando una gran cantidad de campos de trabajo en estas materias y…” Source: RevenueBase Database · checked Sep 29, 2026
4	Radiotrans	Indirect evidence	Leganes, SpainHQ checked Sep 29, 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 29, 2026
5	Ikusi España	Indirect evidence	San Sebastíán, SpainHQ checked Sep 29, 2026	51-200	39 contacts →
	Indirect evidence “Ikusi provee unas redes de comunicaciones eficientes y robustas.” Source: RevenueBase Database · checked Sep 29, 2026
6	Madcoms Networks	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	11-50	32 contacts →
	Indirect evidence “Madcoms serves companies from all sectors helping them to secure their communications and network infrastructures with the most appropriate technology and advanced design…” Source: RevenueBase Database · checked Sep 29, 2026
7	Serval Networks	Indirect evidence	Alcobendas, SpainHQ checked Sep 29, 2026	51-200	28 contacts →
	Indirect evidence “SERVAL NETWORKS somos una empresa consultora de Ciberseguridad e Infraestructura de Comunicaciones, con foco en el mercado español de grandes y medianas empresas y operadores de…” Source: RevenueBase Database · checked Sep 29, 2026
8	ISC	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	51-200	24 contacts →
	Indirect evidence “Conectamos tus proyectos.” Source: RevenueBase Database · checked Sep 29, 2026
9	Siadde Soluciones, SA	Indirect evidence	Madrid, SpainHQ checked Sep 29, 2026	51-200	22 contacts →
	Indirect evidence “SIADDE SOLUCIONES proporciona soluciones y servicios tecnológicos de telecomunicaciones, seguridad y tecnología de la información a empresas privadas y organismos públicos.” Source: RevenueBase Database · checked Sep 29, 2026
10	07 Globalan Telecomunicaciones	Indirect evidence	Sc Detenerife., SpainHQ checked Sep 29, 2026	11-50	18 contacts →
	Indirect evidence “Somos una oficina de proyectos de Ingeniería de telecomunicaciones y seguridad especializados en el diseño, ejecución y mantenimiento de redes de telecomunicación, sistemas video…” Source: RevenueBase Database · checked Sep 29, 2026
11	Daratel Tic, SL	Indirect evidence	Zaragoza, SpainHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “Ingenieria, diseño e implantación de soluciones de Telecomunicaciones para empresas- Centralitas Telefónicas IP/Virtuales- Telefonía y Networking- Cableados estructurados Cat.” Source: RevenueBase Database · checked Sep 29, 2026
12	Satya Seguridad Avanzada	Indirect evidence	La Puebla De Alfinden, SpainHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “Satya es una empresa perteneciente al grupo empresarial TELNET dedicado al I+D y la fabricación de productos de telecomunicaciones, antenas de telefonía móvil de bajo impacto…” Source: RevenueBase Database · checked Sep 29, 2026
13	Sernivel3	Indirect evidence	Bilbao-bilbo, SpainHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “We are a global integrator of tech services.” Source: RevenueBase Database · checked Sep 29, 2026
14	Gastecom S.L	Indirect evidence	Vitoria-gasteiz, SpainHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “GASTECOM es tu operador global de Telecomunicaciones, experto en ciberseguridad, e integrador IT.” Source: RevenueBase Database · checked Sep 29, 2026
15	Grupo Level Electronics	Indirect evidence	Palma De Mallorca, SpainHQ checked Sep 29, 2026	51-200	10 contacts →
	Indirect evidence “Empresa integradora de telecomunicaciones y seguridad.” Source: RevenueBase Database · checked Sep 29, 2026
16	Glofera	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “Glofera is a technology consultancy that helps you find the best solution for every need.” Source: RevenueBase Database · checked Sep 29, 2026
17	Instec Telecom	Indirect evidence	Sant Joan Despi, SpainHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “Empresa de Servicios Integrales de Telecomunicaciones.” Source: RevenueBase Database · checked Sep 29, 2026
18	Kabler	Indirect evidence	Girona, SpainHQ checked Sep 29, 2026	1-10	8 contacts →
	Indirect evidence “Con el motivo de nuestra continua expansión y experiencia profesional como empresa de servicios de telecomunicaciones, iniciamos este nuevo reto en el año 2013 adaptándonos a las…” Source: RevenueBase Database · checked Sep 29, 2026
19	Technorizon Group	Partial evidence	Madrid, SpainHQ checked Sep 29, 2026	51-200	5 contacts →
	Partial evidence “Technorizon group has been supplying IT security solutions and services across public and private sectors since 1996.” Source: RevenueBase Database · checked Sep 29, 2026
20	9teknic Security Systems	Indirect evidence	Tordera, SpainHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “9Teknic, líder en seguridad y comunicaciones desde el año fundada en Blanes por Josep Maria Puig, hemos crecido hasta un gran equipo de profesionales, garantizando soluciones…” Source: RevenueBase Database · checked Sep 29, 2026
21	Flameera	Indirect evidence	Madrid, SpainHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Criminals work day and night to attack companies worldwide, from SMEs to large corporations and public entities.” Source: RevenueBase Database · checked Sep 29, 2026
22	Convergencia DE Telecomunicaciones Contel	Indirect evidence	Gijon, SpainHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Contel es una empresa de servicios avanzados de Telcomunicaciones especializada en ofrecer soluciones globales especializadas a nuestros clientes.” Source: RevenueBase Database · checked Sep 29, 2026
23	Cibersegura	Indirect evidence	Segovia, SpainHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Cibersegura es una empresa de CIBERSEGURIDAD que nace de la experiencia y el buen hacer de su empresa raíz Quick Click Spain, S.L con más de 11 años de experiencia en el sector de…” Source: RevenueBase Database · checked Sep 29, 2026
24	Kualitek Communications	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “En Kualitek somos especialistas en proporcionar servicios tecnológicos profesionales para empresas (B2B):* Redes y conectividad - instalación y mantenimiento de redes informáticas…” Source: RevenueBase Database · checked Sep 29, 2026
25	Innova Planner	Indirect evidence	Granollers, SpainHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Seguridad Tecnológica.” Source: RevenueBase Database · checked Sep 29, 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 security services. 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 security services.
Partial evidence: Its own public description names part of telecommunications security services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications security services. 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 169 telecommunications security services based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 206 reachable decision-makers.

Free signup · no credit card

View the full list →

Telecommunications security services based in Spain at a glance

As of Sep 29, 2026

8.2%Verified-email coverage

14.8Average contacts per company

11-50Median size (employees)

19.5%Largest-city concentration · Madrid

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 169 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 security services, 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 security services”. 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 security services), 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 security services, 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, 206 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 29, 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 telecommunications security services, 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 security services are there based in Spain?

RevenueBase identified 169 telecommunications security services 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?

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

Which city has the most telecommunications security services?

Madrid leads with 33 headquartered companies, followed by Barcelona (12) and Malaga (6).

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 206 verified decision-maker contacts tracked across these 169 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 169 telecommunications security services based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

Telecommunications security services by geography

Browse the directory

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.