The YC company directory.

3,760 active Y Combinator companies. Browse by batch, click into any company to read the one-liner, founders, and quick facts. Seoable was built for founders who run companies like these.

OmnaraSummer 2025

The Command Center for AI Agents

OnDeck AISummer 2025

Analyze any footage, without training a model

OpennoteSummer 2025

The AI tutor that lives in your notes

Orange SliceSummer 2025

AI agents that find you customers who already want to buy

OutroveSummer 2025

Ultra-realistic AI Recruiter

OvloWinter 2025

AI agents for supply chain workflow automation

PalaceSummer 2025

Operational intelligence for PE funds and PE-backed companies

PalomaSummer 2025

AI-native CRM for putting post-sales operations on autopilot

PanelsSummer 2025

Audio Data for AI Labs

PangolinSummer 2025

Open-source alternative to Cloudflare Tunnels

ParachuteSummer 2025

Infrastructure for hospitals to monitor and deploy clinical AI

ParagonWinter 2025

The AI Growth Engine for Industrials

PARES AISummer 2025

Helping commercial real estate brokers find and close more deals.

PartclSpring 2025

Design a chip in minutes

Peppr AIWinter 2025

Self-improving knowledge base synthesizing scattered company data

PercivalSpring 2025

AI-powered data entry for wholesalers and distributors

PermitifyWinter 2025

AI co-pilot for building plan review and building code compliance

Perseus DefenseSummer 2025

America's Golden Dome for Drones

PgDogSpring 2025

Scaling engine for PostgreSQL

Pharmie AISummer 2025

The first AI pharmacy technician

PhasesSummer 2025

Automating clinical trials, starting with patient recruitment.

PhotoniumSpring 2025

AI-Driven Optical System Design

Pingo AISummer 2025

AI companion that helps you learn languages

PlexeSpring 2025

Open-source agents to build predictive ML models from a prompt

PondSummer 2025

Superhuman for text messages

PrismSpring 2025

AI-native Datadog + Amplitude

PropolisSpring 2025

Hands off QA via intelligent browser agents.

QFEXSpring 2025

24/7 Global Stock Exchange

QualGentSpring 2025

AI Mobile App Quality Assurance Tester

Qualify.botSummer 2025

AI phone agents for Commercial Lending

QuantstructWinter 2025

AI documentation engineer – test & autoimprove stale product docs

RallyWinter 2025

Financial OS for Modern Fleets

ReboltWinter 2025

Build apps and agents by speaking with AI

RefreshSpring 2025

Browser agent based testing in vibe coding workflows

RelixirSpring 2025

The Autonomous GEO Platform

RellingSummer 2025

ImageNet for world models

RidSummer 2025

Sell with a text.

RiffSummer 2025

Cursor for music production

Risely AISummer 2025

AI agents that automate administrative work across college campuses.

Riverbank SecuritySummer 2025

AI-native Red Teaming and Offensive Security

RoarkWinter 2025

Test, monitor, and improve your voice agents

RowFlowSummer 2025

Replacing forms with AI conversations

RunRLSpring 2025

Reinforcement learning as a service

SAVASpring 2025

Autonomous Factories for American Manufacturing

Scalar FieldSpring 2025

Reinventing the trading terminal — one intelligent agent at a time.

Sennu AIWinter 2025

Hands off Salesforce QA

SerafisSummer 2025

The AI knowledge graph for institutional investors

ShorSummer 2025

The fastest, most affordable payroll for global teams

SidekickSummer 2025

Lovable for automations

sieveSpring 2025

AI + human review to solve data cleaning - accessible via API or Excel

SigmanticAISummer 2025

The Cursor for Chip Design - Delivering Silicon-Ready Chip Designs…

SimSpring 2025

Open source platform to build AI agent workflows

SiraSummer 2025

AI Native Rippling for Deskless Workers

SixtyfourSpring 2025

AI Agents for Research

SkopeSummer 2025

The billing system for AI products

SlashySummer 2025

AI Native Ops Layer for Business Workflows

Socratix AISummer 2025

AI coworkers for fraud and risk teams.

SOLSummer 2023

Your AI Personal Assistant for daily focus

SolvaSummer 2025

Automates insurance claims and stops incorrect payouts

Spotlight RealtySummer 2025

AI powered brokerage reducing residential rental commissions in NYC…