S11
Acquired
AI
Aisle50
Grocery
Grocery deals.
YC S11
22 dead or acquired startups from batch S11 with completed research reports.
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
AU
Automatic
IoT
Automatic connects your car to the rest of your digital life.
S11
Acquired
Caviar
Delivery
Uber for food.
S11
Acquired
Citus Data
Open Source
Real-time. Big data. PostgreSQL
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
DE
Debteye
Fintech
Automate credit counseling.
S11
Acquired
EM
Embark
Transportation
Public transit apps. Acquired by Apple in 2013.
S11
Acquired
Firebase
Build and grow iOS, Android, and Web apps.
S11
Acquired
FR
Freshplum
Analytics
Analytics with action
S11
Acquired
Genius
Music
Music Intelligence
S11
Acquired
PA
Parse
Parse is the easiest way to build apps.
S11
Acquired
PA
Perfect Audience
SaaS
Self-service display advertising for SaaS and online retail.
S11
Acquired
Realm
Better data structures = no DB.
S11
Inactive
RE
Rentobo
Marketplace
The easiest way to find a tenant. Rentobo is a tool that makes it…
S11
Inactive
RI
Ridejoy
Marketplace
Long-distance carpooling marketplace. Shut down in early 2013.
S11
Acquired
Science Exchange
SaaS
Powering scientific outsourcing
S11
Acquired
Segment
SaaS
Software and APIs to collect, clean, and control customer data.
S11
Inactive
Zenbox
SaaS
Brings dozens of SaaS's (Mailchimp, Stripe, Shopify, Salesforce,…
S11
Acquired
Zeus
Real Estate
Tech-enabled property manager focused on corporate rentals; Acquired…
S11
Inactive
ZI
Zigfu
Augmented Reality
Layer above Kinect.