Funding

AI Startup Cylake Raises $245M in Funding Round

Sep 9, 2026 | By Devin Jacobs

SUMMARY

Cylake raised $245M, taking total funding to $290M.
The funding will support its AI cybersecurity platform.
Cylake provides cybersecurity solutions for regulated companies.

Cylake, a Sunnyvale, CA-based provider of a cybersecurity platform for operational sovereignty, has raised $245 million in a funding round, bringing the total amount to $290 million.

The round saw backers Lightspeed Venture Partners, Picture Capital, and Redpoint Ventures.

The company will use the funds to continue developing its AI-powered, fully sovereign cybersecurity platform and support further team growth.

Funding Snapshot

Metric	Details
Fundraise Amount	$245 million
Total Funding	$290 million
Company	Cylake
Sector	Cybersecurity
Headquarters	Sunnyvale, California
Key Focus	Operational and data sovereignty

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About Cylake

Founded in 2026 by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir, Cylake is developing a cybersecurity platform for large and highly regulated organizations.

The platform is designed to operate entirely on-premises or in private cloud environments, allowing organizations to maintain control over their data, infrastructure, and operations.

Core offerings include:

AI-native cybersecurity capabilities
Fully sovereign security infrastructure
Unified cybersecurity data foundation
On-premises and private cloud deployment

Core Technologies / Products / Services

Capability/Product	Application/Use Case
Unified data foundation	Provides a holistic view of security data and context
AI-native cybersecurity	Supports AI-driven security workflows
Sovereign platform	Helps organizations maintain data and operational control
Private deployment	Enables on-premises and private cloud security

Leadership Comments

“We are building Cylake for organizations that cannot compromise between adopting advanced cybersecurity technology and maintaining control of their data and infrastructure,” said Nir Zuk, CEO and Founder of Cylake. “In those cases, the public cloud is not the right operating model. The architecture needs to be rebuilt around complete data, sovereignty, and control for an AI-native world.

“Having worked with Nir for more than 30 years, I've seen firsthand his ability to anticipate where the market is going and build the anchor products that will define the next generation of cybersecurity,” said Rakesh Loonkar, Partner at Picture Capital, who joins as a Board Observer.