DEFION Security

Speciality: Network and Application Penetration Testing

Other 86 employees

[01] About

Cybersecurity company specializing in penetration testing, red teaming, and security advisory; provides detailed pentest services and operates offices in the Netherlands and Spain; founded in 1997 with 41 employees and over 100 experts, headquartered in Amsterdam, Netherlands.

DEFION Security is an independent, full-service cybersecurity specialist with offices in the Netherlands and Spain and a team of 100+ experts. From our Active Defense approach, we help our clients: • Reduce cyber risk exposure • Comply with complex cybersecurity regulations, like NIS2, DORA and CRA • Strengthen overall resilience and business continuity We connect prevention, detection, and response into one integrated security strategy – delivering not just technical expertise, but strategic advisory at the executive level. Our guidance enables leadership to align cybersecurity with business priorities and make informed investment decisions. Through DEFION Research Labs, we: • Discover new vulnerabilities • Dissect emerging threats • Collaborate with public partners and positively impact society This unique blend of frontline expertise and applied research ensures our clients are protected today and prepared for tomorrow. Learn more at defion.security

[02] Services

DEFION Security Provides Comprehensive Cybersecurity Services Including Active Defense

Security Advisory

Penetration Testing

Managed Detection & Response

Digital Forensics & Incident Response

Business Continuity Services Across IT

Iot Environments.

[03] Certifications

ISO 27001 Readiness Assessment

[05] Notable Clients

AFAS
Avy
NAD Water Control
FuturumShop