YC S11
9 dead or acquired startups from batch S11 with completed research reports.
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Every startup playbook in our database, ready to build
Each deep-dive includes a post-mortem, step-by-step rebuild plan, and a technical spec you can paste straight into Claude Code, Cursor, or Lovable.
S11
Acquired
Codecademy
Education
The leading online learning platform for technical skills.
S11
Acquired
CO
Compose
DevOps
We make it easy to run databases. PostgreSQL, Redis, MongoDB,…
S11
Acquired
Cryptoseal
Cloud Workload Protection
Server key management, VPN as a Service, Privacy VPN. Sold to…
S11
Acquired
EM
Embark
Transportation
Public transit apps. Acquired by Apple in 2013.
S11
Acquired
PA
Parse
Parse is the easiest way to build apps.