YC Summer 2021 Security Startups
9 Y Combinator Security companies from the Summer 2021 batch — with team size, status, and one-liner for every startup.
- Total
- 9
- Active
- 5
- Acquired
- 3
- Shut down
- 1
Y Combinator's Summer 2021 batch included 9 Security startups. Of these, 5 remain active, 3 have been acquired, and 1 have shut down.
- Protego (5 people) — We help companies recover lost revenue from chargebacks
- Malloc Inc (10 people) — AI-driven mobile cybersecurity
- Hyperbrowser (4 people) — Web infra for AI agents
- Keyri (5 people) — Secure fraud prevention and authentication platform for developers
- Tarsal (10 people) — Data pipeline for your security data lake.
- Cloudanix (8 people) — Cloud and Container Security Platform
- Telivy (6 people) — Automate your cyber security risk assessments
- ContraForce (15 people) — Security Delivery Platform to orchestrate AI agents for Service…
- idemeum (10 people) — AI-powered Application Control
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