# AIR Security Raises $50M to Secure AI Agent Supply Chain

> AIR Security has come out of stealth with $50M in seed funding, raised across two rounds: a $10M round led by Sequoia and a larger $40M round led by Greenoaks. The startup is building what it calls a firewall for AI agents. As companies wire agents into real systems, those agents pull in third party skills, tools and plugins, any of which can carry hidden risk. AIR screens the instructions, tools and data flowing into an agent's context before they run, and says it flags roughly 27 percent of available add-ons as potentially dangerous. Founded by veterans of Israel's Unit 8200, the company already has 40 employees and more than 20 enterprise customers in finance and pharma. The pitch lands at the right moment: the agent supply chain is emerging as a genuine attack surface, and almost nobody is guarding it yet.

_Section: [AI Funding Tracker](https://www.wortins.com/funding) · Source: TechCrunch · Published Friday, September 4, 2026_

## Wortins' read

AIR Security has come out of stealth with $50M in seed funding, raised across two rounds: a $10M round led by Sequoia and a larger $40M round led by Greenoaks. The startup is building what it calls a firewall for AI agents. As companies wire agents into real systems, those agents pull in third party skills, tools and plugins, any of which can carry hidden risk. AIR screens the instructions, tools and data flowing into an agent's context before they run, and says it flags roughly 27 percent of available add-ons as potentially dangerous. Founded by veterans of Israel's Unit 8200, the company already has 40 employees and more than 20 enterprise customers in finance and pharma. The pitch lands at the right moment: the agent supply chain is emerging as a genuine attack surface, and almost nobody is guarding it yet.

## Source

[Read the full story at TechCrunch](https://techcrunch.com/2026/09/01/air-raises-50m-to-help-companies-vet-the-skills-and-add-ons-ai-agents-use/)

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