European AI Cybersecurity Firm Astelia Raises $35M

The $35M funding combines both seed and Series A rounds, with Index Ventures leading the Series A and venture creation firm Team8 leading the seed round. Astelia was founded in late 2024 within Team8's venture creation model, which also supported the initial $10 million seed investment alongside Holly Ventures. CEO Alon Noy, CTO Nadav Ostrovsky, and CPO Roy Rajwan are all alumni of elite Israeli intelligence units, including Unit 8200 and the National Red Team. Their work involved conducting proactive attack simulations on Israel's critical national infrastructure, often in collaboration with U.S. Cyber Command. All three founders are recipients of the prestigious Israel Security Award for their contributions. Astelia's platform moves beyond traditional vulnerability scanning by using AI agents to determine which vulnerabilities are not just present, but actually exploitable within a specific company's environment. It maps network topology and security controls to analyze a vulnerability's reachability, effectively filtering out the noise of theoretical risks. In some customer deployments, Astelia's analysis has narrowed down nearly 3 million potential vulnerabilities to just 30 that were genuinely exploitable. This addresses a major pain point for security teams, who face an average of 135 new vulnerabilities daily—a 40% year-over-year increase. The platform provides remediation plans that go beyond simple patching, suggesting changes to network configurations or other compensating controls to block attack paths. This is designed to reduce mean time to remediate (MTTR) without demanding unnecessary or disruptive production patches. The funding is earmarked for doubling the R&D team in Israel, expanding global go-to-market teams, and deepening the platform's AI-driven analysis and attack-path modeling capabilities. The company currently employs over 30 people across Israel and the United States and aims to have 60 to 70 by the end of the year.