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YC S12

15 dead or acquired startups from batch S12 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.

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S12
Acquired
BO

Boosted

Electric Vehicles

Simple, fun, and fast electric vehicles.

S12
Acquired
Clever logo

Clever

Education

The platform that powers technology in the classroom.

S12
Inactive
FS

FileStack

Developer Tools

Acquired by Xenon Ventures.We enable website developers to hook into…

S12
Acquired
Fullstack Academy logo

Fullstack Academy

Education

Pioneer in immersive code education. Acquired by Zovio (NASDAQ: ZVO)…

S12
Inactive
GS

GoScale

SaaS

Dynamical Scaling Virtual Machines as a Service

S12
Acquired
Lever logo

Lever

SaaS

Talent Acquisition Suite that combines ATS + Talent CRM

S12
Acquired
MA

Mattermark

Investing

Big Data Meets Startup Investing The best tool for tracking and…

S12
Acquired
NA

Natero

SaaS

Data-driven customer success platform for B2B SaaS.

S12
Acquired
Soylent logo

Soylent

Sustainability

Soylent is a simple, nutritious, and affordable food that possesses…

S12
Acquired
Statwing logo

Statwing

Analytics

Dead simple statistical analysis software. Like R or SPSS but easy to…

S12
Acquired
SE

Study Edge

eLearning

Acquired by Carlyle. Edtech and other technology

S12
Inactive
Tastemaker logo

Tastemaker

Design Tools

Interior design marketplace and online retailer

S12
Inactive
Thread logo

Thread

E-commerce

Thread makes it incredibly easy to dress well, using stylists and AI

S12
Inactive
Thread logo

Thread

E-commerce

Thread makes it incredibly easy to dress well, using stylists and AI

S12
Acquired
VI

Virool

Video

Virool provides native video advertising experience for the biggest…

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