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YC S19

20 dead or acquired startups from batch S19 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.

See Pro plans
S19
Inactive
AudioFocus logo

AudioFocus

Deep Learning

Hearing aids that work in noisy places, like restaurants, using ML.

S19
Inactive
Brave Care logo

Brave Care

Consumer Health Services

Modern healthcare for kids. Pediatric Primary, Urgent & Remote Care.

S19
Acquired
Bun logo

Bun

Developer Tools

Bun is an incredibly fast all-in-one JavaScript toolkit

S19
Acquired
Compound logo

Compound

Fintech

Compound is a wealth manager for people who work at tech companies.

S19
Acquired
Cuboh logo

Cuboh

SaaS

We help restaurants manage their online orders.

S19
Inactive
Elpha logo

Elpha

Community

Professional network for women

S19
Inactive
Fit to Form logo

Fit to Form

E-Commerce

Fit to Form is a site where women shop for dresses based on their…

S19
Acquired
Localyze logo

Localyze

SaaS

Global mobility platform for companies and employees

S19
Acquired
MyPetrolPump logo

MyPetrolPump

Logistics

On demand fuel delivery service in India

S19
Acquired
Obie logo

Obie

Real Estate

Moving Investment Property Insurance Forward

S19
Acquired
Palifer logo

Palifer

Artificial Intelligence

Predictive maintenance models for trains and heavy industry

S19
Inactive
Pippin / Rent the Backyard logo

Pippin / Rent the Backyard

Construction

Autonomous homebuilding factory for the $1.7 trillion housing crisis.

S19
Acquired
PopSQL logo

PopSQL

Developer Tools

SQL editor for teams

S19
Inactive
Revel logo

Revel

Community

We Deserve More in Midlife

S19
Inactive
RC

ReverCare

Health Tech

Concierge for elder care

S19
Inactive
Souffle Club logo

Souffle Club

Social Network

Souffle Club:10x better LinkedIn alternative with profiles >> resumes

S19
Acquired
TaxProper logo

TaxProper

Fintech

TaxProper helps large Real Estate owners manage their property taxes.

S19
Acquired
Together Software logo

Together Software

SaaS

Learn from the experts at your company.

S19
Acquired
Vendr logo

Vendr

SaaS

The AI negotiation agent to help you save money on SaaS.

S19
Acquired
Voyage Biomedical logo

Voyage Biomedical

Hardware

Using cooling to end brain damage during stroke.

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