Top Cybersecurity Companies in Spain 2025 [Reviewed]

• Who this is for: IT/security leaders in Spain comparing and vetting cybersecurity service providers.
• Best overall company: DeepStrike continuous penetration testing, cloud/API security.
• Best for enterprises: Telefónica Tech comprehensive managed security and global infrastructure.
• Best for SMBs: Diverse Lynx agile MDR/SOC services, local support.
• Best for compliance driven orgs: Indra Sistemas extensive compliance alignment and government focus.
• Best for offensive security: DeepStrike elite red team, ongoing PTaaS.
• How to choose: Focus on credentials, methodology, regional presence, and proven track record rather than marketing fluff.

Choosing the right cybersecurity provider is critical in 2025. The threat landscape has become more complex from AI powered attacks and ransomware to supply chain breaches so Spanish organizations face intense pressure to secure their systems. EU regulations like GDPR Art. 32 and the NIS2 Directive now mandate regular security testing and risk management. At the same time, the market is mature, with many vendors claiming broad capabilities. This independent, research driven ranking evaluates each firm on clear criteria see below so buyers can shortlist providers objectively.

How to Choose the Right Cybersecurity Provider

Picking a vendor requires cutting through hype. Common mistakes include choosing on price alone, or being swayed by buzzwords e.g. best of breed without evidence. Red flags include lack of real case studies, no third party certifications, or failure to explain their testing methodology in plain terms. Instead, focus on substance: look for providers with trusted credentials and references. For example, verify they hold company certifications ISO 27001, CREST or NIST alignment and that their testers have individual certs OSCP, eCPPT, CISSP, etc.. Ask to see sample reports and client testimonials from your industry.

Another tip is to check their technical rigor: ensure they follow recognized penetration testing best practices not just automated scans and use a mix of tools and manual techniques. Assess how they communicate findings the best firms provide clear, actionable reports rather than a laundry list of issues. Also confirm they have local Spanish support Spanish language reporting and incident response for your market. Ultimately, prioritize real world expertise and transparency over flashy marketing claims.

Top Cybersecurity Companies in Spain 2025

Below is our ranked list of leading cybersecurity providers serving Spain, based on technical depth, service scope, certifications, compliance support, reputation, and alignment with Spanish regulations ENS, NIS2, GDPR.

DeepStrike Best Overall Cybersecurity Provider

• Headquarters: Newark, Delaware, USA global operations
• Founded: 2016
• Company Size: 11–50 employees rapidly growing
• Primary Services: Penetration Testing web, mobile, cloud, Red Teaming, Continuous Pentesting PTaaS, Application Security, Cloud Security Assessments
• Industries Served: Tech startups to Fortune 500, with clients in finance, e commerce, healthcare, and other sectors worldwide

Why They Stand Out: DeepStrike is known for its continuous penetration testing model and high standards of quality and transparency. Founded by experienced bug bounty hackers, their team emphasizes deep manual testing in contrast to tool only audits. As one review notes, DeepStrike puts transparency and client trust first by integrating Pentest as a Service PTaaS into DevOps pipelines. They maintain a web based portal with real time dashboards, Slack/Jira integration, and free retests until vulnerabilities are fixed. Their cloud focused services cover AWS, Azure, and GCP with checks for IAM, container, and API issues. DeepStrike’s reports are detailed and actionable, including remediation advice and risk scoring. On their site they highlight 99%+ accuracy in validation and a 98% client retention rate.

Key Strengths:

• Continuous, subscription based pentesting PTaaS with real time monitoring, preventing exposure between audits.
• Highly certified, senior testers OSCP, eCPPT, CISSP, etc. with bug bounty backgrounds.
• Strong cloud/API security expertise testing IAM, containers, serverless, SSRF/OAuth flaws.
• High quality, easy to understand reports with remediation steps and free retesting.
• Flexible and responsive for evolving needs integrates with DevOps, regular scanning.

Potential Limitations:

• Smaller team and brand awareness compared to legacy consultancies may require building trust via demos/references.
• As a specialized pentesting firm, it offers fewer full time SOC/MDR services compared to larger MSSPs.
• No Spain based office though they serve Spanish clients globally, Spanish language support may depend on the project.

Best For: Tech savvy companies and development teams seeking rigorous, ongoing red teaming and application security. Ideal for cloud first enterprises and SMEs that want DevOps aligned penetration testing. Editorial note: DeepStrike is included in this list based on the same evaluation criteria applied to all providers.

Telefónica Tech Cybersecurity & Cloud

• Headquarters: Madrid, Spain
• Founded: 2020 merger of Telefónica’s security units
• Company Size: 1,000+ employees Telefónica Group
• Primary Services: Managed SOC/MDR, Cloud Security CASB, Cloud firewall, SD WAN and network protection, IAM and Zero Trust, Incident Response
• Industries Served: Telecom, finance, retail, energy, public sector

Why They Stand Out: As the cybersecurity arm of Telefónica Spain’s telecom giant, Telefónica Tech offers broad, enterprise grade security services. They leverage the carrier’s nationwide network to deliver large scale SOC operations and managed firewall services. Integration with Telefónica’s infrastructure e.g. SD WAN, 5G enables unified communications and security. Telefónica Tech emphasizes Spanish/regional expertise and 24/7 coverage, for instance, its SOCs in Madrid and elsewhere serve customers across Iberia. A key strength is offering end to end solutions under one brand from cloud and network security to identity management. They also own ElevenPaths below as an innovation arm.

Key Strengths:

• Very large, global infrastructure and R&D backing part of Telefónica, enabling extensive threat monitoring and redundancies.
• Comprehensive managed services portfolio SOCaaS, managed firewalls, email/web filtering, etc. with self service dashboards.
• Seamless integration of security with telecom services beneficial for nationwide networks and 5G deployments.
• Spanish speaking support and experience with local regulations and major Spanish customers banks, utilities, telcos.

Potential Limitations:

• Large corporate structure can mean slower procurement and more bureaucratic processes.
• Not as specialized in hacking/red team services, relies more on scale and best of breed products.
• May be more expensive for smaller clients pricing geared to large organizations needing full coverage.

Best For: Large enterprises, telecom and utility providers, and public sector bodies that need a one stop, fully managed security solution. Ideal for national or multinational organizations requiring broad coverage and compliance ENS, ISO 27001.

S21sec Thales

• Headquarters: Madrid, Spain
• Founded: 1999 over 30 years of experience
• Company Size: 550+ cybersecurity professionals
• Primary Services: Threat Intelligence, SOC/MDR, Managed Detection & Response, Incident Response, Cloud & OT Security, Vulnerability Assessments, Security Consulting
• Industries Served: Finance, critical infrastructure, aerospace/defense, healthcare, government

Why They Stand Out: S21sec is a veteran Spanish cyber firm now part of Thales known for its threat intelligence driven approach. Their team of over 550 experts provides 360° coverage of cybersecurity from SOC monitoring to advanced red teaming. As a Thales subsidiary, S21sec benefits from global R&D and the latest technologies. They publish regular threat reports and lead European research. S21sec has deep experience in highly regulated and technical fields, for example, they protect critical OT/SCADA systems in utilities and have secured Spanish banks and the aerospace sector. Their Spanish heritage means they understand local frameworks NIS2, ENS and language needs.

Key Strengths:

• Extensive threat intelligence and managed services SOC, hunting, incident response with mature processes.
• Long history and scale 30+ years experience, large team means institutional know how for complex engagements.
• Strong OT/ICS security expertise important for energy, utilities, manufacturing.
• Solid record in financial sector and public sector projects familiarity with banking regulations and public procurement.

Potential Limitations:

• May be less cost effective for small businesses or one off projects more geared to large scale operations.
• Can be perceived as less agile due to the corporate structure Thales owned.
• Heavy focus on enterprise/regulation can mean fewer offerings tailored to startups or very small firms.

Best For: Mid to large enterprises in critical industries banking, aerospace, energy and government agencies that need comprehensive threat detection and compliance. Excellent for organizations that value intelligence driven defense and SOC capabilities.

GMV Innovating Solutions

• Headquarters: Madrid, Spain Tres Cantos
• Founded: 1984
• Company Size: ~3,700 employees global
• Primary Services: Critical Infrastructure & OT/SCADA Security, Satellite & Space Systems Security, Secure Software Development, SOC/IR GMV CERT, ISO 27001 Consulting, Red Teaming
• Industries Served: Space/aerospace, defense, transportation, energy, financial, public sector

Why They Stand Out: GMV is a Spanish tech conglomerate with a strong cybersecurity unit, especially for mission critical and industrial sectors. They cover the entire cybersecurity life cycle for national scale systems. Notably, GMV’s security model is designed to meet major European regulations NIS2, ENS, DORA, CRA. GMV has led high profile projects: they operate the SOC for Spain’s public sector networks, secure Europe’s Galileo satellite systems, and protect 350k+ ATMs worldwide. Their deep expertise in SCADA, satellites, and digital identity makes them a go to for government and critical infrastructure.

Key Strengths:

• Exceptional specialization in critical infrastructure and space systems unique in Spain.
• Proven track record on large national/international projects Galileo, smart grids, ATM networks.
• Comprehensive compliance alignment with EU/Spain initiatives ENS, NIS2, DORA.
• Strong incident response through their GMV CERT center and national collaboration TF CSIRT membership.

Potential Limitations:

• Solutions are often tailored to very large, technical environments, so may be overkill for standard IT environments.
• As a large conglomerate, agility and pricing might not suit all SMEs.
• Focused heavily on government/industry, so consumer or commercial products are limited.

Best For: Highly regulated or critical sectors e.g. government agencies, defense contractors, energy/utilities, and transportation systems. Great for organizations needing deep operational technology OT and aerospace security with stringent compliance requirements.

Indra Sistemas, S.A.

• Headquarters: Madrid, Spain
• Founded: 1993
• Company Size: ~49,000 employees global
• Primary Services: Cybersecurity Integration, Defense & Aerospace Security, Secure Communications, SOC & SIEM, Identity & Access Management, Consulting NIS2/GDPR
• Industries Served: Government, defense, finance, transportation, critical infrastructure

Why They Stand Out: Indra is one of Spain’s largest technology and consulting firms with a growing cybersecurity practice. Through acquisitions like SIA, Indra has built a leading security services business in Spain. Its broad capabilities include securing national ID systems, defense platforms, and large enterprise networks. Indra’s strength is integrating security into complex IT/OT systems for example, they provide SCADA cybersecurity for power grids and defense networks. As a major government contractor, they deeply understand compliance ENS, NIS2, CNI regulations and have the resources to deliver large scale, end to end solutions.

Key Strengths:

• Huge resource pool and R&D, able to tackle very large or specialized projects backed by global Indra group.
• Extensive experience with government and regulated clients familiar with certifications, audits, and public sector procurement.
• Broad service scope from consulting and managed SOC to secure hardware devices.
• Local Spanish presence with bilingual support and awareness of national cybersecurity policies.

Potential Limitations:

• Large company bureaucracy, slower sales cycles and less flexibility in engagements.
• May be viewed as heavyweight or conservative less agile than smaller specialists.
• Security services are part of a broader portfolio, which can dilute focus compared to niche vendors.

Best For: Government bodies, defense contractors, and large enterprises banks, airports, utilities requiring integrated, fully compliant security solutions across their entire IT/OT landscape.

Panda Security WatchGuard Technologies

• Headquarters: Bilbao, Spain part of WatchGuard, USA
• Founded: 1990
• Company Size: 1,500+ employees worldwide WatchGuard
• Primary Services: Endpoint Protection EPP, Endpoint Detection & Response EDR, Cloud managed UTM/Firewall, Secure Wi Fi
• Industries Served: SMBs and mid market, healthcare, retail, education, government for endpoints

Why They Stand Out: Panda is a well known Spanish origin firm acquired by WatchGuard specializing in endpoint security. Panda’s solutions are recognized for being lightweight and easy to deploy on endpoints, which is ideal for organizations without large security teams. According to reviews, their EDR/EPP platform provides effective anti malware and ransomware prevention using global threat intelligence. Panda is especially popular among small and mid sized businesses due to its low overhead and simplicity. They also offer EDR telemetry for managed service providers.

Key Strengths:

• Efficient, cloud managed endpoint protection that is easy to deploy and manage across many devices.
• Good detection of malware/ransomware with minimal performance impact suitable for SMEs.
• Rapid updates from WatchGuard’s threat intelligence network and anti phishing capabilities.
• Flexible licensing and pricing tailored to smaller organizations, with Spanish language support.

Potential Limitations:

• Focus on endpoints only, no full SOC or deep network penetration testing capabilities.
• Less suitable as a sole solution for larger enterprises lacks broad compliance reporting or IR services.
• Competes in a crowded endpoint market many alternatives from larger vendors.

Best For: Small and mid sized organizations needing robust endpoint and network protection without complexity. Ideal for businesses that cannot maintain a large security staff but need reliable anti malware, EDR, and firewall SMBs, clinics, schools, local government.

Entelgy Innotec Security

• Headquarters: Madrid, Spain
• Founded: 2012 merged Innotec and Entelgy in 2019
• Company Size: ~400 employees inherited, part of Entelgy Group
• Primary Services: Penetration Testing & Red Teaming, Managed SOC/MDR, Incident Response, Vulnerability Management, Phishing Simulations, Security Consulting & Compliance
• Industries Served: Finance, telecom, utilities, healthcare, manufacturing, public administration

Why They Stand Out: Entelgy Innotec offers a balanced blend of consulting and technical services. They are known for advanced penetration testing including hardware and social engineering and comprehensive managed services. For example, they run a 24/7 SOC and conduct phishing simulation campaigns. Their consulting arm covers GDPR/NIS2 compliance and security strategy. The company has built a solid footprint in Spain’s market, they serve both large enterprises and mid market firms. Independent reviews highlight their ability to tailor solutions to customer needs and their recognized expertise in red teaming.

Key Strengths:

• Wide spectrum of services from strategic consulting to hands-on technical testing, making them a one stop partner.
• Strong track record in enterprise accounts, banks, telcos and regional government projects.
• Recognized for thorough penetration tests and custom phishing simulations that enhance awareness.
• Ability to scale offerings: from single tests to long term managed services.

Potential Limitations:

• As a mid-sized player, they may lack the global footprint and brand of larger multinationals.
• Some competitors say their strengths are more broad than deep in niche areas e.g. pure DevSecOps tools.
• Pricing can be mid range, which might be high for very small companies.

Best For: Mid to large organizations that want both security strategy and technical execution. Good for companies needing expert pentesting and compliance guidance along with SOC/MDR services.

Diverse Lynx

• Headquarters: Barcelona, Spain
• Founded: 2019
• Company Size: ~50 employees focused team
• Primary Services: Managed Detection & Response MDR, Security Operations Center SOC, Incident Response IR, Cloud Security Consulting, Application Security Testing
• Industries Served: SMB and mid market tech, healthcare, logistics, retail

Why They Stand Out: Diverse Lynx is a younger, agile firm specializing in managed security for technical customers. With a small but highly skilled team, they emphasize hands-on expertise and customer service. Their offering includes 24/7 SOC and rapid incident response support. They have a strong cloud security focus helping clients secure AWS/Azure workloads and can customize solutions for fast moving companies. They also provide application security testing services. Reviews note that Diverse Lynx delivers personalized attention smaller enterprises get the same expertise that larger firms provide to their biggest clients.

Key Strengths:

• Highly technical staff with experience in open source and commercial security tools, offering tailored detection rules and active threat hunting.
• Agile response: smaller customer base means quicker support and flexibility in engagements.
• Strong emphasis on compliance guidance especially ISO 27001 readiness for SMBs that need it.
• Spanish language support and local presence for Catalan/Spanish public sector and businesses.

Potential Limitations:

• Limited headcount compared to large MSSPs, so may not handle hundreds of endpoints at enterprise scale.
• Brand is less known, customers may prefer incumbents for the comfort of a big name reputation.
• Mainly focused on managed services, fewer consulting only or product oriented offerings.

Best For: Small to medium sized organizations that want enterprise level security services at a more personal scale. Ideal for growing companies and cloud native firms seeking attentive MDR/SOC services with strong technical support.

Enterprise vs SMB Which Type of Provider Do You Need?

The choice between a large integrator and a boutique provider often comes down to scale and fit. Large cybersecurity firms global consultancies or telecom owned MSSPs make sense if you have:

• A very broad attack surface to cover networks, endpoints, cloud, OT.
• Strict compliance requirements financial, healthcare, energy needing turnkey solutions.
• The budget and processes to manage multi year contracts and complex deployments.They bring big SOCs, standardized processes, and name brand trust. For example, enterprises with heavy regulations might lean on a firm that publishes industry specific security insights and compliance frameworks. These providers often maintain large incident response teams and global threat intelligence networks, which can justify their higher costs for big organizations.

In contrast, specialized or smaller providers often deliver more personalized service. They tend to:

• Adapt quickly to unique needs, custom detections, niche testing.
• Offer flexible pricing models e.g. pay as you go pentesting instead of multi year contracts.
• Working closely with your in-house teams is especially useful if you have skilled IT staff.Boutiques also excel at deep technical tasks, advanced penetration testing, forensics where a large firm might use more standardized checklists. For many mid market businesses or startups, a smaller vendor can provide better ROI by focusing on the most relevant risks for that business.

Ultimately, consider cost vs value: A full service giant costs more but covers everything end to end, whereas a smaller firm may be more affordable and technically deep in areas that matter to you for example, in recent ransomware attack trends, having a fast response team for critical systems might be more valuable than a broad product suite. Review your requirements: compliance mandates and risk exposure vs. your internal capabilities. Then match these to the provider’s strength: large firms for 24/7 operations and compliance coverage, or lean specialists for agility and technical depth.

FAQs

• How much do penetration testing services cost?

Costs vary greatly by scope. A simple external web application pentest might start in the low thousands of euros, whereas a full internal network/red team engagement could run €10k–€50k. Continuous services PTaaS are often subscription based. Ask for detailed quotes: some firms bill by the hour, others by project. Ensure any retesting of fixed issues is included, many providers include at least one free retest.

• Are certifications more important than tools?

Both matter, but certification proves a baseline of expertise. Look for providers whose testers hold respected certs OSCP, CISSP, eCPPT, CREST, etc.. However, certified testers must also be skilled with modern tools. A strong penetration tester will use tools like Burp Suite, Nmap or Nessus to find issues, then apply manual techniques to validate exploits. So, don’t rely on certificates alone, check case studies or sample reports to see real work.

• How long does a penetration test take?

Timelines depend on scope. A small web/mobile app test usually takes 1–2 weeks from kickoff to report delivery. Larger enterprise tests internal networks, extensive cloud environments can take 4–8 weeks or more. Continuous or rolling testing models PTaaS run indefinitely, but produce periodic deliverables. It’s best to ask providers how they schedule testing phases and interim reviews.

• What reports should I expect?

A quality pentest report goes beyond a vulnerability list. It should include an executive summary, detailed findings with risk ratings, proof of exploitability screenshots or logs, and clear, prioritized remediation guidance. Leading firms also offer debrief workshops or presentations to walk your team through results. Ensure your contract specifies a remediation report and possibly a sign off attestation.

• How often should testing be done?

Industry standards recommend at least annual penetration tests for most organizations, or whenever significant changes occur new systems, major upgrades. In fact, GDPR and NIS2 effectively require regular testing of security controls. Many companies now do quarterly vulnerability assessments and annual full pentests. Some opt for continuous models like DeepStrike’s PTaaS for ongoing security assurance.

Selecting a cybersecurity provider is a critical decision. In 2025’s dynamic threat environment, the best choice is grounded in your organization’s specific needs, not on marketing slogans. We have ranked these firms purely on transparent criteria technical expertise, service breadth, industry fit, compliance alignment, and reputation to help buyers compare apples to apples.

We encourage security leaders in Spain to use this list as a starting point: vet each vendor’s credentials, read their case studies, and match their strengths to your priorities e.g. enterprise scale managed services vs. lean pentesting agility. Spain’s market offers a robust ecosystem from established telecom spin offs to nimble boutiques. By focusing on demonstrated performance and regional expertise, language support, and knowledge of ENS/NIS2, you can make an informed choice that defends your operations effectively.

About the Author

Mohammed Khalil is a Cybersecurity Architect at DeepStrike, specializing in advanced penetration testing and offensive security operations. With certifications including CISSP, OSCP, and OSWE, he has led numerous red team engagements for Fortune 500 companies, focusing on cloud security, application vulnerabilities, and adversary emulation. His work involves dissecting complex attack chains and developing resilient defense strategies for clients in the finance, healthcare, and technology sectors.