Tenzai

Tenzai is building an autonomous AI hacker: a platform that runs full penetration tests end-to-end, so that enterprises can ship unbreakable code. Founded in 2025 by veteran offensive cyber experts with decades of experience - including backgrounds in military intelligence units and at category-defining companies such as Guardicore and Snyk - the company has raised $75 million in seed funding to pursue a single conviction: AI has changed the attack landscape, and defence must change with it.

The Tenzai AI Hacker reasons about applications much as an expert human does. It discovers attack surface, chains weaknesses together and produces reproducible exploits, complete with the evidence required to fix them. Its agents are transparent and guidable: security teams can scope, direct, narrow and review their reasoning at every step. The system is designed to scale to every application an organisation ships, continuously, without scheduling a red team engagement.

The technical credentials are unusually concrete. The platform placed in the top 1% across six global capture-the-flag platforms, outranking more than 125,000 human hackers. Its working domains span autonomous AI agents, AI reasoning, offensive cybersecurity, exploit generation, attack surface discovery and application security.