AIR, an AI security startup founded by veterans of Israel’s Unit 8200, has emerged from stealth with $50M across two seed rounds to police the software supply chain forming around AI agents.
As agents gain access to company systems, they increasingly rely on skills, plug-ins, and MCP servers to reach the internet. AIR argues these components lack the oversight given to signed drivers or curated applications.
Its platform discovers agents running inside a company, continuously vets the skills and tools they use, and blocks interactions that fail security checks. It also runs a marketplace of vetted add-ons. The company says it filters out about 27% of the skills and add-ons it finds online, watching for malicious changes to previously approved packages.
Sequoia led the first $10M round, with Greenoaks leading the second $40M. Angels include Wiz co-founder Yinon Costica and Cognition president Zach Frankel.
AIR claims more than 20 customers, with the strongest demand in financial services and pharma. Rivals are raising alongside it. Zenity closed a $125M Series C in August. Noma collected $100M in 2025.
