Fundz

AIR Security raises $50M led by Sequoia Capital and Greenoaks to build a firewall for AI agents.

PRIVATESep 01, 2026

Amount Raised

$50 Million

Round Type

Venture

IsraelInformation TechnologyArtificial IntelligenceSecurityCyber SecurityMachine LearningNetwork Security

Investors

Swish VenturesNetzSequoia CapitalGreenoaks

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.

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Company Information

Company

AIR Security

Location

Israel

About

AIR Security is a cybersecurity company that develops an inline firewall platform to protect AI agents from malicious content and compromised tools. Founded in February 2026 by Yair Saban and Niv Hoffman, the company focuses on securing the supply chain of AI agents as enterprises increasingly rely on them for critical tasks. AIR employs 40 people in Israel and has built a research laboratory dedicated to AI security research and agent behavior analysis. The platform protects what enters an agent's context, addressing security challenges that arise from agents connecting to multiple tools, information sources, and third-party services.

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Related People

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Verified contactsYair, Co-Founder & CEO hidden hiddenSee plans and pricing
Predictive Intelligence
Strategic

ML-powered predictions for AIR Security's next move

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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.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.