Company lists · Data refreshed September 2026

Top 25 Telecom security consulting companies based in Spain

Name: Telecom security consulting companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 241 companies tracked

RevenueBase identified 241 telecom security consulting companies headquartered in Spain as of September 2026 and tracks 7,555 professional contacts across them, including 635 with verified work emails and 42 with mobile numbers. Madrid is the largest hub.

This list covers telecom security consulting 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 6, 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 6, 2026 86% judged on-target in blind review

241Companies

7,555Contacts tracked

635Verified emails

42Mobile numbers

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The 25 largest telecom security consulting companies based in Spain

Ranked by team size

Top 25 of 241 telecom security consulting companies based in Spain, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to telecom security consulting companies: 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	Securitas Seguridad España	Partial evidence	Madrid, SpainHQ checked Sep 6, 2026	10001+	3,620 contacts →
	“Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Source: company website · checked Sep 6, 2026
2	Zelenza	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	1,001-5,000	1,125 contacts →
	“En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Source: company website · checked Sep 6, 2026
3	Sofistic Cybersecurity	Strong evidence	Castellón De La Plana, SpainHQ checked Sep 6, 2026	201-500	110 contacts →
	“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: company website · checked Sep 6, 2026
4	GSS Security	Indirect evidence	Mataro, SpainHQ checked Sep 6, 2026	51-200	91 contacts →
	“GSSecurity nace en el año 2006 de la mano de un grupo de profesionales con una dilatada experiencia en el sector de la seguridad residencial y empresarial.” Source: company website · checked Sep 6, 2026
5	ITM Global	Partial evidence	Cartes, SpainHQ checked Sep 6, 2026	201-500	82 contacts →
	“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: company website · checked Sep 6, 2026
6	Áudea Seguridad DE LA Información	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	76 contacts →
	“Áudea Seguridad de la Información es una consultora tecnológica, con 10 años de experiencia, que presta servicios profesionales relacionados con la gestión de la seguridad de la…” Source: company website · checked Sep 6, 2026
7	Contecnow	Strong evidence	Barcelona, SpainHQ checked Sep 6, 2026	51-200	59 contacts →
	“Contec Consulting es una consultoría independiente de telecomunicaciones, con capital 100 % nacional y creada en el año Damos soporte a nuestros clientes en los siguientes pilares…” Source: company website · checked Sep 6, 2026
8	Gestinet Internet Informàtica	Indirect evidence	Vilafranca Del Penedès, SpainHQ checked Sep 6, 2026	51-200	49 contacts →
	“Gestinet es una empresa tecnológica con 30 años de trayectoria, formada por un equipo propio en Catalunya, Madrid y Valencia.” Source: company website · checked Sep 6, 2026
9	Cemoel	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	11-50	48 contacts →
	“CEMOEL, es una empresa nacida en 1991, dedicada a la realización de instalaciones y mantenimiento de Sistemas de Seguridad Integral.” Source: company website · checked Sep 6, 2026
10	Madcoms Networks	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	11-50	32 contacts →
	“Madcoms serves companies from all sectors helping them to secure their communications and network infrastructures with the most appropriate technology and advanced design…” Source: company website · checked Sep 6, 2026
11	Serval Networks	Indirect evidence	Alcobendas, SpainHQ checked Sep 6, 2026	51-200	28 contacts →
	“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: company website · checked Sep 6, 2026
12	Corinto Retail	Indirect evidence	Gijón, SpainHQ checked Sep 6, 2026	11-50	25 contacts →
	“Corinto Retail nace en 2018 de la mano de profesionales que vienen de diferentes empresas y con muchos años de experiencia.” Source: company website · checked Sep 6, 2026
13	ISC	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	51-200	24 contacts →
	“Conectamos tus proyectos.” Source: company website · checked Sep 6, 2026
14	Tecnek Ciberseguridad	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	11-50	20 contacts →
	“Expertos en seguridad de la información con amplia experiencia en el sector ubicados en Madrid.” Source: company website · checked Sep 6, 2026
15	07 Globalan Telecomunicaciones	Partial evidence	Sc Detenerife., SpainHQ checked Sep 6, 2026	11-50	18 contacts →
	“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: company website · checked Sep 6, 2026
16	Daratel Tic, SL	Partial evidence	Zaragoza, SpainHQ checked Sep 6, 2026	11-50	16 contacts →
	“Ingenieria, diseño e implantación de soluciones de Telecomunicaciones para empresas- Centralitas Telefónicas IP/Virtuales- Telefonía y Networking- Cableados estructurados Cat.” Source: company website · checked Sep 6, 2026
17	Grayhats Ciberseguridad Y Cumplimiento Normativo Expertos EN Nis2, ENS Y Dora	Indirect evidence	Córdoba, SpainHQ checked Sep 6, 2026	11-50	16 contacts →
	“En GrayHats llevamos más de 13 años ayudando a empresas a proteger lo que realmente importa: su información, su reputación y su continuidad.” Source: company website · checked Sep 6, 2026
18	Contec Consulting	Strong evidence	Barcelona, SpainHQ checked Sep 6, 2026	11-50	13 contacts →
	“Contec Consulting nació hace más de veinte años para guiar a las empresas en el cambiante sector de las telecomunicaciones.” Source: company website · checked Sep 6, 2026
19	Satya Seguridad Avanzada	Partial evidence	La Puebla De Alfinden, SpainHQ checked Sep 6, 2026	11-50	11 contacts →
	“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: company website · checked Sep 6, 2026
20	Gastecom S.L	Partial evidence	Vitoria-gasteiz, SpainHQ checked Sep 6, 2026	11-50	10 contacts →
	“GASTECOM es tu operador global de Telecomunicaciones, experto en ciberseguridad, e integrador IT.” Source: company website · checked Sep 6, 2026
21	Grupo Level Electronics	Partial evidence	Palma, SpainHQ checked Sep 6, 2026	51-200	10 contacts →
	“Empresa integradora de telecomunicaciones y seguridad.” Source: company website · checked Sep 6, 2026
22	Celtic Consulting S.L	Strong evidence	Barcelona, SpainHQ checked Sep 6, 2026	11-50	9 contacts →
	“Celtic Consulting es una consultoría en el sector de las Telecomunicaciones con un equipo altamente experimentado, que trabaja para contribuir al éxito de la estrategia de…” Source: company website · checked Sep 6, 2026
23	Glofera	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	11-50	9 contacts →
	“Glofera is a technology consultancy that helps you find the best solution for every need.” Source: company website · checked Sep 6, 2026
24	Instec Telecom	Partial evidence	Sant Joan Despi, SpainHQ checked Sep 6, 2026	11-50	8 contacts →
	“Empresa de Servicios Integrales de Telecomunicaciones.” Source: company website · checked Sep 6, 2026
25	Osane Consulting	Partial evidence	Miñano, SpainHQ checked Sep 6, 2026	11-50	8 contacts →
	“Osane Consulting es una empresa de Ingeniería y Consultoría de Seguridad Corporativa y Patrimonial.” Source: company website · checked Sep 6, 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: telecom security consulting 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 security consulting companies.
Partial evidence: Its own public description names part of telecom security consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecom security consulting 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 241 telecom security consulting companies based in Spain

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Telecom security consulting companies based in Spain at a glance

As of Sep 6, 2026

8.4%Verified-email coverage

0.6%Mobile-number coverage

31.3Average contacts per company

1-10Median size (employees)

18.7%Largest-city concentration · Madrid

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

126

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

5960–30

3131–60

161–90

090–180

7180+

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 security consulting 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 security consulting 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 security consulting 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 security consulting 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, 635 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 6, 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.

Telecom security consulting companies by metro

Telecom security consulting companies in Madrid45
Telecom security consulting companies in Barcelona26

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 security consulting 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 security consulting companies are there based in Spain?

RevenueBase identified 241 telecom security consulting 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?

Securitas Seguridad España, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most telecom security consulting companies?

Madrid leads with 45 headquartered companies, followed by Barcelona (26) and Malaga (10).

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 635 verified decision-maker contacts tracked across these 241 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 6, 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.