W15
Inactive
20
20n
Artificial Intelligence
Using AI to predict biochemistry for manufacturing and therapeutics
YC W15
27 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.
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
BO
Bonfire
SaaS
Bonfire is reimagining RFPs & bidding for gov procurement teams
W15
Inactive
Booktrope
Booktrope provides a software platform that makes it easy for…
W15
Acquired
Chariot
Transportation
The world's first private mass transit service providing a commuting…
W15
Acquired
HigherMe
SaaS
Helping restaurant employers find & hire better employees faster
W15
Acquired
Lumi
E-Commerce
Packaging for online brands.
W15
Acquired
Moltin
Payments
eCommerce building blocks through simple APIs for websites & apps.…
W15
Inactive
OM
Omniref
Developer Tools
Sticky notes for code. (We're building a community-powered,…
W15
Acquired
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
Developer Tools
Data Versioning, Data Pipelines, and Data Lineage
W15
Acquired
Paperspace
Machine Learning
Paperspace is a cloud platform for building and scaling AI…
W15
Inactive
Pigeonly
GovTech
The affordable way to search, find & communicate with an incarcerated…
W15
Acquired
Popular Pays
Advertising
Software for collaborating with content creators and influencers
W15
Acquired
Raven Tech
Our vision is to build the next generation of iOS or Android, to…
W15
Acquired
Remix
SaaS
We’re building a platform to empower cities to plan the best possible…
W15
Acquired
Remix
SaaS
We’re building a platform to empower cities to plan the best possible…
W15
Acquired
Shift Labs
Hardware
Makers of simple, affordable medical devices. Our award-winning…
W15
Acquired
Spire Health
Telehealth
Remote patient monitoring for lung disease patients.
W15
Inactive
Standard Cyborg
Machine Learning
Buid, test and deploy perception applications
W15
Acquired
Tech in Asia
Media
Tech in Asia (YC W15) is the largest English-language technology…
W15
Inactive
Underground Cellar
Marketplace
Upgrading Your Wine Experience
W15
Acquired
Vest
Fintech
Bringing wider access to financial derivatives.
W15
Inactive
VP
VetPronto
Healthcare
On demand veterinary house calls.
W15
Acquired
WayUp
Marketplace
Marketplace for employers to recruit college students and recent grads