AIR Security raises $50M led by Sequoia Capital and Greenoaks to build a firewall for AI agents.
Amount Raised
$50 Million
Round Type
Venture
IsraelInformation TechnologyArtificial IntelligenceSecurityCyber SecurityMachine LearningNetwork SecurityInvestors
Description
AIR Security, a six-month-old cybersecurity company founded by Yair Saban and Niv Hoffman, has raised $50 million in funding led by Sequoia Capital and Greenoaks. The company develops a security platform for the supply chain of AI agents, featuring an "inline firewall" designed to protect what enters an agent's context. Additional investors include Swish Ventures and Netz, alongside prominent industry figures like Zach Frankel and Yinon Costica. The company currently employs 40 people in Israel and has appointed Ryan Knisley, former CISO of Disney and Costco, as chief strategy officer.
Quick answer
AIR Security raised $50 Million in a funding round, dated September 1, 2026. Investors: Swish Ventures, Netz, Sequoia Capital and Greenoaks. AIR Security is based in Israel.
- How much did AIR Security raise?
- AIR Security raised $50 Million in a funding round on September 1, 2026.
- Who invested in AIR Security?
- Swish Ventures, Netz, Sequoia Capital and Greenoaks are named as investors in this round.
- What does AIR Security do?
- AIR Security is a cybersecurity company that develops an inline firewall platform to protect AI agents from malicious content and compromised tools.
- Where is AIR Security based and how big is it?
- AIR Security is based in Israel.
- Who are the decision-makers at AIR Security?
- Fundz holds 2 contacts at AIR Security, including the Co-Founder & CEO. Names and contact details are shown to Fundz members.
Source: Fundz verified event record.
Who else raised in Security and Cyber Security around the same time
Companies in the same sectors as AIR Security that raised within 45 days of this round, from Fundz verified event records.
- Armadin raised $256M (Series B) on October 1, 2026.
- LeoTrace raised $2M (Pre-Seed) on September 11, 2026.
- Bynario raised $2.4M (Pre-Seed) on September 10, 2026.
- Reach Security raised $50M (Series B) on October 14, 2026.
- Zaperon raised $730K (Seed) on October 1, 2026.
- Sovera Security raised $607K (Seed) on September 29, 2026.
Who to call at AIR Security, and when
A new round usually means AIR Security is about to hire and buy. The teams that reach out first get the meeting.
- An alert the day AIR Security raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at AIR Security, from your own LinkedIn network
Works inside ChatGPT and Claude. Ask who to call at AIR Security. With Fundz connected, it knows.
AI made execution free. Knowing first is the whole game now.
Fundz sees it the moment AIR Security raises, hires an exec or expands, usually minutes after it happens, and tells you who to reach.
Related People
AIR Security raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.
145 of these a day, filtered to the companies you pick, with the decision-maker attached.
5 screens from a live account. No signup.