YC Spring 2025 Security Startups
8 Y Combinator Security companies from the Spring 2025 batch — with team size, status, and one-liner for every startup.
- Total
- 8
- Active
- 7
- Acquired
- 1
- Shut down
- 0
Y Combinator's Spring 2025 batch included 8 Security startups. Of these, 7 remain active, 1 have been acquired, and 0 have shut down.
- Golf (1 people) — Agentic AI Security and Governance
- Tinfoil (5 people) — Encrypted AI with verifiable privacy
- Casco (10 people) — Autonomous security testing for web apps, APIs, cloud, and AI systems
- Cotool (4 people) — AI Agents for Security Operations Teams
- BitPatrol (1 people) — AI-powered code security
- Better Auth (4 people) — The authentication framework for TypeScript
- MindFort (5 people) — Autonomous Security Agents
- Probo (6 people) — We help you get compliant while you focus on your business.
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