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YC W15

13 dead or acquired startups from batch W15 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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W15
Inactive
20

20n

Artificial Intelligence

Using AI to predict biochemistry for manufacturing and therapeutics

W15
Inactive
AA

Automate Ads

Analytics

On a mission to programmatically automate, optimize, and unify your…

W15
Acquired
BL

Bluesmart

IoT

Bluesmart makes smart luggage powered by an app to empower people to…

W15
Acquired
Chariot logo

Chariot

Transportation

The world's first private mass transit service providing a commuting…

W15
Inactive
OM

Omniref

Developer Tools

Sticky notes for code. (We're building a community-powered,…

W15
Acquired
Open Listings logo

Open Listings

Marketplace

A better way to buy a home

W15
Acquired
OU

Outbound

Messaging

Create automated messages -- email, iOS/Android push, SMS and web…

W15
Acquired
Pachyderm logo

Pachyderm

Developer Tools

Data Versioning, Data Pipelines, and Data Lineage

W15
Acquired
Raven Tech logo

Raven Tech

Our vision is to build the next generation of iOS or Android, to…

W15
Acquired
Remix logo

Remix

SaaS

We’re building a platform to empower cities to plan the best possible…

W15
Acquired
Shift Labs logo

Shift Labs

Hardware

Makers of simple, affordable medical devices. Our award-winning…

W15
Acquired
Tech in Asia logo

Tech in Asia

Media

Tech in Asia (YC W15) is the largest English-language technology…

W15
Acquired
Vest logo

Vest

Fintech

Bringing wider access to financial derivatives.

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