As cyber threats grow in scale and complexity, Portugal is quietly establishing itself as a hub for cybersecurity innovation. Startups across Lisbon, Porto, and Coimbra are building advanced technologies to protect businesses, governments, and individuals from ransomware, data breaches, phishing attacks, and other digital risks. These companies are not only securing national infrastructure they are exporting solutions globally, proving that Portugal is capable of competing with cybersecurity giants worldwide. Top 10 cybersecurity startups in Portugal making waves in 2026.

1. Jscrambler – Defending the Web at the Frontline

Jscrambler protects websites and web applications from tampering and code theft. By securing client-side JavaScript, the company prevents attacks such as data skimming, reverse engineering, and fraud. Trusted by global brands, Jscrambler is often cited as Portugal’s cybersecurity flagship.

2. ETHIACK – AI-Powered Ethical Hacking

ETHIACK combines artificial intelligence and penetration testing to identify vulnerabilities before hackers do. Their platform allows continuous monitoring and automated testing, helping organizations proactively manage risks in real time.

3. CYBERS3C – Practical Security and Training

CYBERS3C provides a mix of hands-on security services and training for companies of all sizes. Their focus on education helps businesses strengthen their internal defenses while building awareness about phishing, ransomware, and cyber hygiene.

4. RootKey – Identity Protection and Access Control

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RootKey specializes in securing digital identities and access privileges across cloud and hybrid systems. With remote work becoming mainstream, their solutions help prevent unauthorized access and reduce attack surfaces in complex IT environments.

5. Proxy Sentinel – Real-Time Threat Detection

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Proxy Sentinel focuses on real-time monitoring of web traffic and API endpoints. Its systems detect automated attacks and suspicious behavior, giving organizations the ability to respond immediately to cyber threats.

6. Vawlt – Secure Data Storage

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Vawlt protects sensitive data in both transit and storage, helping companies comply with privacy regulations while maintaining robust cybersecurity. Their infrastructure solutions are particularly useful for finance, healthcare, and research sectors.

7. Amnezia – Advanced Threat Hunting

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Amnezia develops intelligent tools to monitor networks, detect anomalies, and identify potential threats. Designed to support Security Operations Centers, their solutions help businesses respond quickly to sophisticated cyber attacks.

8. GnuVPN – Encrypted Connections for Remote Teams

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GnuVPN provides secure virtual private network solutions for remote employees and distributed organizations. Its encrypted communications protect sensitive business data and ensure safe browsing in increasingly hybrid work environments.

9. Probely – Web Application Security for Developers

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Probely automates vulnerability scanning for websites and APIs, allowing developers to integrate security testing into the software development lifecycle. Their platform ensures that applications are secure before release, reducing risk and compliance headaches.

10. CYBERSEC LDA – Offensive Security Solutions

CYBERSEC LDA combines penetration testing, consulting, and security auditing to help businesses proactively identify and remediate weaknesses. Their tailored approach makes them a go-to partner for companies seeking comprehensive cybersecurity strategies.

Portugal’s Growing Cybersecurity Ecosystem

Portugal’s cybersecurity startups benefit from a mix of talent, government support, and international investment. From Lisbon’s tech hubs to university incubators in Porto and Coimbra, a new generation of entrepreneurs is building solutions that anticipate threats rather than merely reacting to them. With the global demand for digital safety skyrocketing, these startups are well-positioned to export their solutions worldwide, reinforcing Portugal’s reputation as a serious contender in cybersecurity innovation.

Portugal’s cybersecurity ecosystem has evolved into a dynamic and globally relevant sector, characterized by innovation, proactive defense, and intelligent automation. The country’s startups are increasingly blending AI, machine learning, and ethical hacking techniques to anticipate and neutralize cyber threats across multiple vectors—from cloud systems to web applications and enterprise networks. Leading firms like Jscrambler and ETHIACK exemplify Portugal’s strength in proactive security: one focuses on defending the web at the code level, while the other harnesses AI for continuous ethical hacking. Meanwhile, companies such as Vawlt and GnuVPN tackle data privacy and encrypted communications, two of the most critical areas in modern cyber defense. Portugal’s combination of technical expertise, investment support, and international collaboration enables its startups to compete on a global scale. As threats become more complex and pervasive, these companies are proving that small but innovative ecosystems can produce solutions with world-class impact.