Astelia

Astelia provides a security exposure management platform that assists organizations in prioritizing and mitigating cyber risks by identifying which vulnerabilities are genuinely exploitable. Founded in late 2024 by former leaders of the Israeli National Red Team, Alon Noy (CEO), Nadav Ostrovsky (CTO), and Roy Rajwan (CPO), the company was established within Team8's venture creation program. The founders share a background in elite Israeli cyber units, including Unit 8200 and the Matzov unit, where they led advanced cyber operations and proactive attack simulations to test the resilience of IDF systems and critical national infrastructure. For their contributions, all three received the Israel Security Award.

The company's platform addresses the overwhelming volume of vulnerability alerts that security teams face. It utilizes AI agents and deep analysis of an enterprise's environment to distinguish between theoretical risks and real, provable exposure. Astelia's system maps network topology, segmentation, and existing security controls to understand how an attacker could traverse the network. By correlating this reachability data with an analysis of the technical prerequisites for exploiting a vulnerability, the platform can isolate the small fraction of vulnerabilities—reportedly as low as 1-2%—that pose an immediate threat.

Astelia's business model targets enterprise clients, including Fortune 500 companies, aiming to reduce the noise from vulnerability management tools and allow security teams to focus on critical threats. This approach helps align security and IT teams by providing evidence-based reasoning for remediation priorities. Instead of just patching, the platform offers multiple remediation options, including network-based and compensating controls. The company has secured $35 million in combined seed and Series A funding, with rounds led by Team8 and Index Ventures, and participation from Holly Ventures. This capital is intended to expand its AI capabilities, scale deployments, and grow its engineering and go-to-market teams. Astelia integrates with existing third-party scanners like Tenable and Rapid7, but plans to develop its own first-party scanning capabilities to offer an end-to-end solution.

Keywords: exposure management, vulnerability prioritization, cyber risk mitigation, AI-native security, network topology mapping, attack path analysis, exploitability analysis, red team, cybersecurity, remediation guidance, threat intelligence, continuous validation, reachability analysis, compensating controls, security posture, breach prevention, risk-based vulnerability management, security analytics, enterprise security, network visibility