These are the largest cybersecurity companies based in Spain, primarily large enterprises specializing in IT services and consulting. Companies like Minsait, NTT DATA Europe & Latam, and Telefónica Tech focus on digital transformation, cloud, and security solutions. Indra Group also plays a significant role in defense and space manufacturing with a strong cybersecurity component.
The data shows a strong concentration of these large cybersecurity firms in Madrid. Most of the listed companies are well-established, with several founded in the 1980s and 1990s, such as GMV, Zelenza, and Evolutio Empowering the cloud, indicating a mature market.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Minsaitminsait.com
A leading Spanish technological consultant operating globally, leveraging cloud, security, payments, and innovative technology to drive business and societal impact #MoreMinsait |
45,000 | |||
| 2 |
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. |
39,308 | |||
| 3 |
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 |
31,932 | |||
| 4 |
Applus+applus.com
A global leader in testing, inspection, and certification services, providing innovative solutions for asset integrity, regulatory compliance, and environmental performance |
20,046 | |||
| 5 |
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 |
6,208 | |||
| 6 |
KPMG Españakpmg.com
Professional services firm providing audit, tax, legal, financial, and business advisory with global expertise and local market knowledge. |
5,523 | |||
| 7 |
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 |
4,392 | |||
| 8 | 4,163 | ||||
| 9 |
T-Systems Iberiat-systems.com
Innovative global company promoting social and ecological well-being through groundbreaking projects, offering opportunities for talent to grow professionally and personally |
2,822 | |||
| 10 |
IndraMind Cybersecurityindramindcybersecurity.com
Specialized cybersecurity company offering comprehensive 360º services and digital identity solutions to protect businesses internationally with sector expertise. |
2,000 | |||
| 11 |
Entelgyentelgy.com
A global consultancy that accelerates business transformation through innovative technological solutions, helping clients adapt and thrive in a constantly changing world |
1,796 | |||
| 12 |
Zelenzazelenza.com
Company offers integrated ICT services, Telco network engineering, defense and security solutions, and customer experience. It helps businesses face digital challenges. |
1,332 | |||
| 13 |
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 |
1,239 | |||
| 14 |
LKS NEXTlksnext.com
The company provides comprehensive business consulting services with a focus on technology, finance, and legal support, working closely with clients for transformative and successful outcomes |
1,062 | |||
| 15 |
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 |
928 | |||
| 16 | 902 | ||||
| 17 |
S2GRUPOs2grupo.es
European company specializing in cybersecurity, cyberintelligence, and cyberdefence, protecting critical infrastructures and strategic sectors with advanced solutions, integrating IT and OT for operational resilience. |
768 | |||
| 18 |
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 |
749 | |||
| 19 | 702 | ||||
| 20 | 689 | ||||
| 21 |
SIA Groupindramindcybersecurity.com
Leading cybersecurity company in Spain and Portugal, offering tailored solutions to combat digital threats and maximize protection for businesses Part of global Indra Group |
672 | |||
| 22 |
Logicalis Spainlogicalis.com
Logicalis is an integrator of infrastructure and technological solutions, offering high support for businesses to simplify processes, make informed decisions, and achieve better results |
635 | |||
| 23 |
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 |
580 | |||
| 24 |
Integraintegratecnologia.es
Technology consulting company focused on digital transformation, offering innovative solutions and strategic expertise with national presence and strong industry alliances. |
524 | |||
| 25 | 505 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 | 503 | ||||
| 27 | 499 | ||||
| 28 | 459 | ||||
| 29 |
Aireairetech.es
Innovative telecommunications group providing voice, audiovisual, cloud, and data center solutions to national and international clients with a focus on nature and technology |
446 | |||
| 30 |
IKERLANikerlan.es
A leading technology center offering competitive value to industry through digital technologies, artificial intelligence, cybersecurity, mechatronics, and energy solutions |
438 | |||
| 31 |
Panda Securitypandasecurity.com
European company specializing in advanced cybersecurity solutions and services, providing EDR systems, management, and monitoring tools to clients worldwide. |
391 | |||
| 32 |
Exceliaexcelia.com
International firm offering Consulting, Technology, Accounting & Tax, and Talent services in over 50 countries, specializing in digital transformation and tech talent solutions |
370 | |||
| 33 |
Signaturit Group a Namirial Companysignaturit.com
It provides a modular platform for secure digital transactions, focusing on identity management, electronic signatures, and operational efficiency through automation. |
352 | |||
| 34 |
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 |
350 | |||
| 35 |
Facephifacephi.com
This company provides an AI/ML-powered platform for digital identity verification, fraud prevention, and regulatory compliance, ensuring secure and accessible digital processes for clients globally. |
331 | |||
| 36 |
Grupo ICAgrupoica.com
Providing digital transformation, cybersecurity, communication infrastructure, and IT professional services tailored to public and private sector needs. |
331 | |||
| 37 |
Grupo TECDATA Engineeringtecdata.es
Provides IT services and professional technology solutions with own infrastructure in Spain, focusing on client needs and business optimization. |
328 | |||
| 38 |
INCIBE - Instituto Nacional de Ciberseguridadincibe.es
Researching, providing services, and collaborating to raise cybersecurity awareness and protect internet users. Offers a helpline for assistance. |
324 | |||
| 39 |
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. |
317 | |||
| 40 |
Thales en Españathalesgroup.com
Leading multinational in defense, aerospace, cybersecurity, and digital identity with multiple centers and 1,300 employees across Spain. |
292 | |||
| 41 |
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 |
290 | |||
| 42 |
Ingeniababelgroup.com
A specialized IT consulting firm with lines of business in security, engineering, communications, quality improvement, open data, smart cities, new media, and cloud services Founded in 1992 with offices in multiple locations |
280 | |||
| 43 |
Quintas Energyquintasenergy.com
A company dedicated to promoting sustainable energy sources and combating climate change by changing attitudes and managing renewable energy effectively |
278 | |||
| 44 |
INNOVASURinnovasur.com
Andalusian technology-based company specializing in Smart City, IT Infrastructure, and Cybersecurity solutions for the private sector and public administrations Creating secure, connected, sustainable futures |
272 | |||
| 45 |
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 |
262 | |||
| 46 |
Cuatroochentacuatroochenta.com
Cuatroochenta specializes in developing digital solutions and cybersecurity to enhance organizational performance, serving clients in Europe, Latin America, and North America |
242 | |||
| 47 |
OmniAccessomniaccess.com
A leading provider of premium digital solutions in the maritime industry, guaranteeing the best onboard digital experience while prioritizing data security |
229 | |||
| 48 | 225 | ||||
| 49 |
Ricoh Cloud & Cyberipm.es
Specialized cloud, infrastructure, and cybersecurity solutions provider accelerating digital transformation with secure, innovative, and sustainable technologies for businesses. |
222 | |||
| 50 |
CONVOTIS Iberiaconvotis.com
A technology development company based in Alicante, providing customized digital solutions, competitive advantages, and technical excellence through innovation and expertise Founded in 2002 |
217 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
More company lists in Spain
- The largest companies in Spain 10,893
- Multinational companies in Spain 2,706
- Retail chains in Spain 1,251
- Manufacturers in Spain 1,080
- Companies with in-house R&D in Spain 1,067
- Wellness and Fitness Services companies in Spain 879
- Healthcare providers in Spain 711
- Companies with a mobile app in Spain 561
- Hotel and hospitality groups in Spain 539
- Family-owned companies in Spain 531
- Software Development companies in Spain 530
- Professional services firms in Spain 522
- Critical infrastructure operators in Spain 517
- IT services companies in Spain 484
- Financial services firms in Spain 482
- Food and Beverage Services companies in Spain 462
- SaaS companies in Spain 445
- Retail Apparel and Fashion companies in Spain 439
- IT Services and IT Consulting companies in Spain 437
- Hospitality companies in Spain 435
- Consulting firms in Spain 420
- E-commerce companies in Spain 416
- Food and beverage companies in Spain 416
- Hardware manufacturers in Spain 415