Rogier Fischer
Co-founder and CEO
Hadrian
About
Rogier Fischer is the co-founder and CEO of Hadrian, an AI-powered offensive security company building autonomous pentesting technology. Hadrian’s AI agents continuously discover digital assets, identify vulnerabilities, test exploitability, and simulate real attack paths. Under his leadership, Hadrian has grown into one of Europe’s leading cybersecurity scale-ups, protecting major financial institutions, industrial companies and Fortune 500 enterprises. A hacker and entrepreneur from an early age, Rogier founded his first company at 14 and later co-founded cryptocurrency platform LiteBit, which he helped scale before its acquisition. Today, he combines his technical background with his experience building international technology companies to advance AI-driven penetration testing and help organisations defend themselves against an increasingly automated threat landscape.