Einaras von Gravrock, Angel Investor

Einaras von Gravrock is a serial entrepreneur and technology leader focused on AI, cybersecurity, and cloud automation. He is the Founder & CEO of CUBE3 AI, launched in 2022 to prevent fraud and scams in real time, working with leading global financial institutions. He also co‑founded CAST AI in 2019, a rapidly scaling cloud automation platform backed by investors including SoftBank and Creandum, and earlier founded CUJO AI, which became a global leader in network security, protecting billions of endpoints and 60M+ homes before its strategic acquisition. CUJO AI earned recognition as a World Economic Forum Technology Pioneer and won multiple industry awards. Einaras began his entrepreneurial journey with Modnique and continues to invest in emerging ventures, including sintra.ai’s seed round in 2025. His career reflects a consistent focus on building high‑impact companies at the intersection of AI, security, and infrastructure.