YL Ventures
VC Fund
San Francisco, United States
YL Ventures is a VC fund in San Francisco focused on Cyber Security and Network Security. YL Ventures funds and supports brilliant Israeli tech entrepreneurs from seed to lead. YL Ventures manages over $300 million and exclusively invests in cybersecurity. YL Ventures accelerates the evolution of portfolio companies via strategic advice and U.S.-based operational execution, leveraging a powerful network of Chief Information SecurityOfficers and global industry leaders. The firm's track record includes successful, high-profile portfolio company acquisitions by major corporations, including Palo Alto Networks, Microsoft, CA, and Proofpoint.
- Total investments:
- 73
- Last investment:
- Lead investor:
- 45%
- Fund size:
- $400M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries YL Ventures invests in
Stages YL Ventures invests in
Countries YL Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 25 contacts → | |||
Round size
- Seed
- $2.5M–$20M
- Series A
- $2.5M–$30M
- Series B
- $10M–$55M
Investment Focus
Industry
- Cyber Security 18 (25%)
- Network Security 16 (22%)
- Security 12 (16%)
- Cloud Security 9 (12%)
- Information Technology 9 (12%)
Stage
- Seed 30 (41%)
- Series A 24 (33%)
- Series B 9 (12%)
- Series C 3 (4%)
- Funding Round 2 (3%)
Country
- Israel 21 (29%)
- United States 13 (18%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Guy Leibovitz
Insider Company Nam
|
Insider Company Nam | Total investments: 1 | Find email | |
Michael Cortez
Partner
|
Partner | Total investments: 1 | Find email | |
Nati Hazut
Insider
|
Insider | Total investments: 1 | Find email | |
Ofer Schreiber
Partner & Head of Israel Office
|
Partner & Head of Israel Office | Total investments: 12 | Find email | |
Roger Hale
Venture Advisor
|
Venture Advisor | Total investments: 1 | Find email | |
| See all 25 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Hush Security is a cybersecurity company specializing in eliminating static secrets like API keys and credentials by replacing them with just-in-time, policy-based access controls for machine identities. | $30M / Series A / Jul 28, 2026 | ||
| Native Security is a cloud security control plane for enterprises. It translates security outcomes into native cloud controls, simulates deployment impacts, and maintains alignment as environments change. The platform enforces security at the architectural level across multi-cloud setups. | $31M / Series A / Mar 17, 2026 | ||
| Opti is an AI-powered identification protection system that uses domain-trained models to automate enterprise IAM. | $20M / Seed / Nov 24, 2025 | ||
| Hush Security is a cybersecurity company specializing in eliminating static secrets like API keys and credentials by replacing them with just-in-time, policy-based access controls for machine identities. | $11M / Seed / Sep 10, 2025 | ||
| Novee is an AI penetration testing platform designed to protect dynamic environments from machine-speed attackers. | $33M / Series A / Sep 01, 2025 | ||
| MIND operates as a data security platform, which puts data loss prevention (DLP) and insider risk management (IRM) programs on autopilot. | $30M / Series A / Jun 04, 2025 | ||
| Novee is an AI penetration testing platform designed to protect dynamic environments from machine-speed attackers. | $8.5M / Seed / May 01, 2025 | ||
| The Minimus platform may assist businesses in achieving an instant reduction in vulnerability exposure with just one modification to deployment configurations, greatly speeding up the remaining remediation efforts. | $51M / Seed / Apr 28, 2025 | ||
| Miggo Security is the Application Detection and Response (ADR) platform with a mission to prevent application breaches. | $17M / Series A / Apr 23, 2025 | ||
| Native Security is a cloud security control plane for enterprises. It translates security outcomes into native cloud controls, simulates deployment impacts, and maintains alignment as environments change. The platform enforces security at the architectural level across multi-cloud setups. | $11M / Seed / Jan 01, 2025 | ||
| See all 73 investments → | |||
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FAQ
What does YL Ventures invest in?
YL Ventures invests primarily in Cyber Security, Network Security and Security startups, most often at Seed and Series A stage. Most of the 73 investments tracked by Shizune back companies in Israel. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is YL Ventures's check size?
YL Ventures typically joins rounds of $2.5M–$20M at Seed, $2.5M–$30M at Series A and $10M–$55M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds YL Ventures participates in.
How do I contact YL Ventures?
Public channels for YL Ventures include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at YL Ventures?
The team at YL Ventures includes Guy Leibovitz (Insider Company Nam), Michael Cortez (Partner) and Nati Hazut (Insider), among 25 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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