Cylake, a cybersecurity company focused on AI-native and data-driven protection for highly regulated organisations, has officially emerged from stealth with $45m.
The company has raised $45m in a seed funding round led by Greylock Partners, with participation from additional technology investors. The investment marks the company’s first external funding since its formation and reflects growing interest in cybersecurity solutions designed for environments that require strict data sovereignty and operational control.
Cylake has been founded to address the needs of large enterprises and institutions operating in heavily regulated sectors, where the use of public cloud-based security tools may not be feasible due to regulatory restrictions or internal risk policies. The platform is designed as an AI-native cybersecurity architecture built on a unified data foundation, enabling organisations to gain complete visibility across their infrastructure while maintaining full control over their systems and information.
At the core of Cylake’s offering is the belief that modern cybersecurity must be driven by comprehensive data and contextual awareness across an organisation’s entire technology stack. The company argues that fragmented security tools or incomplete data visibility can create weaknesses that attackers may exploit. By consolidating protection into a single platform powered by AI and agentic workflows, Cylake aims to provide organisations with more coherent and effective security operations.
The newly raised capital will support the continued development of Cylake’s platform and help the company expand its engineering and product capabilities. The funding will also enable the firm to further refine its AI-native architecture and deliver solutions tailored to organisations that require cybersecurity systems capable of operating fully on-premises or within private cloud environments.
Cylake was co-founded by Nir Zuk, Wilson Xu and Ehud (Udi) Shamir, a leadership team with deep experience in the cybersecurity sector. Zuk founded Palo Alto Networks in 2005 and served as its CTO for more than two decades. Xu spent more than ten years helping to build Palo Alto Networks, including leading engineering teams, while Shamir previously co-founded cybersecurity firm SentinelOne in 2013. The founders say their combined experience building category-defining security companies has informed the design of Cylake’s platform.
Cylake founder and CEO Nir Zuk said, “Cybersecurity is constantly evolving, and sometimes new challenges demand completely new approaches. Cylake is for institutions where maintaining full control over data and operations is not optional.”
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