Cylake Raises $245 Million for Sovereign Cybersecurity Platform Development

Funding Details and Company Growth

Cylake, a cybersecurity startup, has raised $245 million in a new funding round, increasing its total capital to $290 million within six months of its launch. The investment was secured via a convertible note with participation from Lightspeed Venture Partners, Picture Capital, and Redpoint Ventures. The company, which emerged from stealth in March 2026 with a $45 million seed investment led by Greylock Partners, has grown to over 40 employees and plans further hiring across engineering and product roles.

Platform Development and Release Timeline

The newly acquired funds will be used to accelerate the development of Cylake's sovereign security platform and expand its team. A beta release of the platform is anticipated by the end of 2026, with general availability scheduled for 2027. The platform is designed for organizations that require on-premises or private cloud deployments, such as government agencies and highly regulated enterprises.

Leadership and Expertise

Cylake was co-founded by CEO Nir Zuk, chief development officer Wilson Xu, and chief architect Ehud “Udi” Shamir. Nir Zuk previously founded Palo Alto Networks and served as its CTO for over two decades. Wilson Xu was an engineering executive at Palo Alto Networks, and Ehud Shamir co-founded SentinelOne before working at Palo Alto Networks. René Bonvanie, former CMO of Palo Alto Networks, has also joined the team.

Sovereign Security Platform Vision

Cylake is developing an AI-native cybersecurity platform specifically for organizations that cannot rely on public cloud infrastructure. The platform is intended to operate entirely on premises or within private cloud environments, providing customers with control over their data, infrastructure, and security operations. Its architecture aims to unify data and context from across an organization's infrastructure to create a foundation for protection and AI-powered workflows.

Addressing Data Sovereignty and Visibility Gaps

The platform's approach is designed to address data sovereignty requirements and overcome visibility gaps that arise from using multiple security products with limited data access. According to CEO Nir Zuk, the platform is built for organizations that prioritize advanced cybersecurity technology while maintaining control of their data and infrastructure, where the public cloud model is not suitable. The architecture is being rebuilt around complete data, sovereignty, and control for an AI-native environment.