Company lists · Data refreshed September 2026
Top 25 Telecom infrastructure security companies based in Spain
RevenueBase identified 127 telecom infrastructure security companies headquartered in Spain as of September 2026 and tracks 2,418 professional contacts across them, including 186 with verified work emails. Madrid is the largest hub.
This list covers telecom infrastructure security companies 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.
The 25 largest telecom infrastructure security companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 82 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 82 contacts → | ||||
Partial evidence “SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 39 contacts → | ||||
Indirect evidence “Ikusi provee unas redes de comunicaciones eficientes y robustas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 39 contacts → | ||||
Partial evidence “Covert Security es mucho más que una empresa de seguridad: es el aliado estratégico para quienes buscan protección avanzada, innovación tecnológica y un servicio cercano y…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 24 contacts → | ||||
Indirect evidence “Conectamos tus proyectos.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 20 contacts → | ||||
Partial evidence “En Phicus Tecnología llevamos más de 20 años ayudando a operadores de telecomunicaciones (ISP) a mejorar el control, la visibilidad y la eficiencia en la gestión de sus redes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 17 contacts → | ||||
Indirect evidence “La historia de ALTEL comienza en el año 1989, con el inicio de actividad de instalación y mantenimiento de equipos de radio y televisión.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “Tecisa es una empresa proveedora de soluciones integradas de seguridad, formada por un grupo de ingenieros y técnicos superiores, de acreditada experiencia en el sector…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence “Ralset es una empresa de seguridad de ámbito estatal, inscrita en el Registro de Empresas de Seguridad de la Dirección General de la Policía con el número 3846, y autorizada para…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Partial evidence “Digital Mantenimientos empresa dedicada desde más de 35 años a la instalación y mantenimiento de infraestructuras de telecomunicaciones en Comunidades de Vecinos.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “We are a global integrator of tech services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Partial evidence “UPNET es un Operador de Telecomunicaciones experto en proporcionar comunicaciones y ciberseguridad a plantas de energía renovable.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Partial evidence “GASTECOM es tu operador global de Telecomunicaciones, experto en ciberseguridad, e integrador IT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Partial evidence “Empresa integradora de telecomunicaciones y seguridad.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Partial evidence “adesal telecom nace con vocación de ser una empresa tecnológica de referencia en la Comunidad Valenciana con el objeto de colaborar y ofrecer sus servicios a Administraciones…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “ControlCat: Seguretat Intel·ligent” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
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: telecom infrastructure security companies. 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 telecom infrastructure security companies.
- Partial evidence
- Its own public description names part of telecom infrastructure security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name telecom infrastructure security companies. 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 127 telecom infrastructure security companies based in Spain
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Telecom infrastructure security companies based in Spain at a glance
As of Sep 29, 2026Companies by employee count
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 127 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 telecom infrastructure security companies, 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 “telecom infrastructure security companies”. 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 telecom infrastructure security companies), 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 telecom infrastructure security companies, 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, 186 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 telecom infrastructure security companies, 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 telecom infrastructure security companies are there based in Spain?
RevenueBase identified 127 telecom infrastructure security companies 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 telecom infrastructure security companies?
Madrid leads with 19 headquartered companies, followed by Barcelona (16) and Murcia (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 186 verified decision-maker contacts tracked across these 127 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.
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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.
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