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List of cybersecurity companies in Madrid

Tamtam tracks 31 cybersecurity companies headquartered in Madrid. This list ranks the 30 largest by number of employees on LinkedIn, led by Indra Group, NTT DATA Europe & Latam and Applus+. Their median headcount is 459. Half of them were founded in 1997 or later.

🇪🇸 Madrid30 companiesUpdated Nov 12, 2026

The companies listed here are primarily large firms in Madrid specializing in IT services and consulting, with a strong focus on cybersecurity. Key players include Indra Group, a multinational in defense and space alongside IT services; NTT DATA Europe & Latam, a global IT services provider; Applus+, a leader in testing, inspection, and certification; and Accenture España, a professional services company driving digital transformation.

A clear pattern among these companies is their deep engagement in cybersecurity, cloud technology, and digital transformation, indicating a concentrated expertise in these areas within the Madrid business landscape. Many also offer comprehensive IT consulting and managed services.

#CompanyIndustryHeadquarters EmployeesFounded
1
Indra Groupindragroup.com

Leading multinational providing defense, space, air traffic management, and mobility solutions alongside information technology services, artificial intelligence, cybersecurity, and advanced digital transformation projects.

Defense and Space Manufacturing 🇪🇸 Madrid 39,308 n/a
2
NTT DATA Europe & Latamnttdata.com

Global IT services provider transforming clients through consulting, solutions, and managed services to enable a confident move into the digital future

IT Services and IT Consulting 🇪🇸 Madrid 31,932 n/a
3
Applus+applus.com

A global leader in testing, inspection, and certification services, providing innovative solutions for asset integrity, regulatory compliance, and environmental performance

Business Consulting and Services 🇪🇸 Madrid 20,046 n/a
4
Accenture Españaaccenture.com

A global professional services company helping businesses and governments with digital transformation, cloud technology, data analytics, and industry expertise to drive tangible outcomes

Business Consulting and Services 🇪🇸 Madrid 6,208 n/a
5
KPMG Españakpmg.com

Professional services firm providing audit, tax, legal, financial, and business advisory with global expertise and local market knowledge.

Professional Services 🇪🇸 Madrid 5,523 n/a
6
Telefónica Techtelefonicatech.com

Accelerating tech adoption through services in Cyber Security, Cloud, IoT, Big Data, AI, and Blockchain, with a strong presence on social media platforms

Telecommunications 🇪🇸 Madrid 4,392 n/a
7
Entelgyentelgy.com

A global consultancy that accelerates business transformation through innovative technological solutions, helping clients adapt and thrive in a constantly changing world

IT Services and IT Consulting 🇪🇸 Madrid 1,796 n/a
8
Zelenzazelenza.com

Company offers integrated ICT services, Telco network engineering, defense and security solutions, and customer experience. It helps businesses face digital challenges.

IT Services and IT Consulting 🇪🇸 Madrid 1,332 1984
9
Sermicrogruposermicro.com

ICT solutions and services integrator of reference with 35+ years of experience, offering innovative technology solutions for businesses worldwide Providing opportunities for professional growth

IT Services and IT Consulting 🇪🇸 Madrid 1,239 1985
10
Evolutio Empowering the cloudevolutio.com

Spanish technology expert specializing in cloud computing, cybersecurity, digital experience, and telecommunications for corporate and public entities With over 30 years of experience

IT Services and IT Consulting 🇪🇸 Madrid 928 1989
11
TRCtrc.es

An alliance of companies specializing in technology integration, telecommunications networks, data center deployment, software development, cybersecurity, and cloud services

Technology, Information and Internet 🇪🇸 Madrid 902 1989
12
MTP Métodos y Tecnologíamtp.es

Specialized consultancy providing Software Quality Assurance services to improve costs, deadlines, and quality of software products for Telecom, Banking, Insurance, Utilities, and Public Sector

IT Services and IT Consulting 🇪🇸 Madrid 749 1997
13
Cibernosgrupocibernos.com

A Spanish IT consulting and services company with nearly 1,000 employees in Spain and Latin America, offering integrated solutions tailored to clients' needs

IT Services and IT Consulting 🇪🇸 Madrid 580 1966
14
MNEMOmnemo.com

A Spanish company specializing in cybersecurity & technology, providing services internationally Offering end-to-end solutions for various industries with a focus on innovation & excellence

IT Services and IT Consulting 🇪🇸 Madrid 505 n/a
15
FNMT-RCMfnmt.es

A public entity focused on providing services with a strong emphasis on security and strict production control, collaborating with private entities when necessary

IT Services and IT Consulting 🇪🇸 Madrid 459 1893

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16
Scalian Spainscalian-spain.es

Scalian Spain specializes in creating tailored solutions to drive business performance, develop innovative products, optimize strategic plans, and improve data insights

IT Services and IT Consulting 🇪🇸 Madrid 350 1989
17
Grupo ICAgrupoica.com

Providing digital transformation, cybersecurity, communication infrastructure, and IT professional services tailored to public and private sector needs.

IT Services and IT Consulting 🇪🇸 Madrid 331 1983
18
Grupo TECDATA Engineeringtecdata.es

Provides IT services and professional technology solutions with own infrastructure in Spain, focusing on client needs and business optimization.

IT Services and IT Consulting 🇪🇸 Madrid 328 2018
19
Thales Cybersecurity Services – Spain/Portugalthalesgroup.com

Offers cybersecurity products and services to keep people and assets safe, reinforcing trust and resilience in processes and infrastructures for global organizations.

Computer and Network Security 🇪🇸 Madrid 317 2000
20
Thales en Españathalesgroup.com

Leading multinational in defense, aerospace, cybersecurity, and digital identity with multiple centers and 1,300 employees across Spain.

IT Services and IT Consulting 🇪🇸 Madrid 292 n/a
21
Teldatteldat.com

A Spanish company providing innovative solutions for cloud access, remote office communications, cybersecurity, and connectivity in various environments Leaders in European corporate communications market

Telecommunications 🇪🇸 Madrid 290 1984
22
fibratelfibratel.com

With over 30 years of experience, the company focuses on digitalization, IT security, networking solutions, and 360º managed services to protect businesses from cyber threats

IT Services and IT Consulting 🇪🇸 Madrid 262 1992
23
Securitypymesecuritypyme.es

Specializing in thorough technical audits focused on cybersecurity to protect businesses in today's digital landscape, ensuring compliance and proposing tailored security solutions

IT Services and IT Consulting 🇪🇸 Madrid 192 2021
24
Procesiaprocesia.com

Procesia is an innovative group specializing in technology, training, and consulting for the modernization of Public Administration and Justice Administration through digital systems

IT Services and IT Consulting 🇪🇸 Madrid 181 2015
25
GlobalSuite Solutionsglobalsuitesolutions.com

Providing solutions for risk management, security, compliance, and auditing through specialized consulting, software, and managed services to diverse sectors.

Software Development 🇪🇸 Madrid 135 2006
26
Lynx Techlynxtech.com

An AI-driven software company focusing on detecting and predicting behavioral patterns, offering cutting-edge AI technologies for financial institutions and commercial enterprises globally

Software Development 🇪🇸 Madrid 126 2023
27
BOTECHbotech.info

A company specializing in cybersecurity, artificial intelligence, big data, and fraud prevention for online banking and payment systems, offering cutting-edge solutions globally

Security and Investigations 🇪🇸 Madrid 109 2013
28
Áudea Seguridad de la Informaciónaudea.com

Áudea is a technology consultancy specializing in information security and new technologies, offering services in legal, management, and technical areas

IT Services and IT Consulting 🇪🇸 Madrid 84 2002
29
Datos101datos101.com

A data business continuity company offering services such as backups, disaster recovery plans, data storage, cybersecurity solutions, and compliance with data regulations

Software Development 🇪🇸 Madrid 21 2016
30
Gatacagataca.io

Cybersecurity company developing self-sovereign identity technology for hyper-secure, passwordless access to digital services, offering decentralized identity solutions for individuals and companies

Software Development 🇪🇸 Madrid 14 2018

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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