Last updated 2026-09-09
- Raised $245M convertible note led by Lightspeed Venture Partners, Sep 2026
- Raised $45M Seed round led by In-Q-Tel (IQT), Mar 2026
Total raised
$290.0M
Last: Convertible Debt 2026-09
Stage
Seed
Founded
2026
Headcount
40
HQ
Sunnyvale, United States
Sector
Cyber Security
About
Cylake is a cybersecurity company built for the world's largest and most regulated institutions. Co-founded by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir, Cylake is developing a complete, AI-native, data-driven cybersecurity platform designed for full data sovereignty. The platform operates entirely on-premises or in private cloud environments, allowing organizations to maintain strict control over their data, infrastructure, and operations without relying on public cloud infrastructure.
Funding history · 2 rounds · $290.0M total
2 events/rounds · $290.0M Total Funding: $45.0M in Private Equity, $245.0M in Debt
Sep 2026
Mar 2026
★ Greylock Partners★ In-Q-Tel (IQT)IQTIn-Q-Teladditional experienced tech investorsadditional experienced technology investors
Offices
Sunnyvale, United States · HQ / main office
Q&A
- What is Cylake's primary focus?
- Cylake is an AI-native cybersecurity platform designed for on-premises and private cloud deployment, ensuring full data sovereignty for regulated industries.
- When was Cylake founded and by whom?
- Cylake was founded in January 2026 by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir.
- How much funding has Cylake raised in total?
- Cylake has raised a total of $290,000,000.
- Which investors participated in Cylake's Seed round?
- In March 2026, Cylake raised a Seed round with participation from Greylock Partners and IQT.
- What was Cylake's most recent funding round?
- Cylake's most recent funding was a Convertible Debt round in September 2026, with Lightspeed Venture Partners and Picture Capital participating.
- What is the current employee count for Cylake?
- Cylake currently has 11-50 employees.
- Where is Cylake's headquarters located?
- Cylake's headquarters is located in Sunnyvale, United States.
- Who are some of the key executives at Cylake?
- Key executives at Cylake include Nir Zuk (CEO and Founder), Wilson Xu (Co-founder and Chief Development Officer), and Ehud (Udi) Shamir (Co-founder and Chief Architect).
Team · 13
Sectors & technology
Primary sector
Cyber Security
Technologies
Target customers
Business model
on-premises softwareprivate cloud software
Tags
cybersecurityai-nativeon-premisesprivate-clouddata-sovereigntyregulated-industries
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | cylake.com |
|---|---|
| linkedin.com/company/cylake | |
| X / Twitter | twitter.com/CylakeSecurity |
Identifiers & details
| Founded | 2026-1 |
|---|---|
| Employees (exact) | 40 |
Radar intelligence
Open jobs — ashby
| Total open | 12 |
|---|---|
| Remote | 0 |
| Title | Location | Department |
|---|---|---|
| Applied AI Engineer | ||
| Security Researcher (Detection Systems) | ||
| GTM / Business Recruiter | ||
| Product Designer | ||
| Windows System Software Engineer | ||
| Director, Supply Chain and Operations | ||
| Software Engineer (2027 University Grad) | ||
| Backend Engineer | ||
| Frontend UI Engineer | ||
| Software Infrastucture Engineer | ||
| Data Pipeline Engineer | ||
| Endpoint Engineer |
Web history (Wayback)
| Domain | cylake.com |
|---|