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.

StrikeWinter 2025

A new prediction market for businesses

SubImageWinter 2025

Software that maps your infrastructure. Open core alternative to Wiz

SubstrateSummer 2024

Artificial Intelligence for your medical billing team

SubtraceWinter 2025

Zero code network tracer

SunflowerFall 2025

A "Duolingo for addiction" with a tele-therapy clinic inside. 🌻

SunsetFall 2024

Find and move money after a death

SuperagentWinter 2024

The AI firewall — stop attacks, leaks, and model abuse

SuperCraftSummer 2023

Figma for designing physical products

superglueWinter 2025

Workflow automation engine

SuperunitSummer 2024

Faster, more profitable background checks with AI

SurgeFall 2024

Stripe for telephony

Sygaldry TechnologiesSpring 2025

quantum-accelerated AI servers

SymphonyFall 2024

Voice AI sims for next-gen employee training

SynnaxSummer 2024

Unified Hardware Control and Data Processing Software

SynthFall 2024

We build Research Engineering Agents

SynthioLabsSpring 2025

AI-Powered Customer Engagement for Life Sciences

SyntraSummer 2024

Real-time AI audits of medical charts and charges.

TabularSummer 2024

AI Copilot for accounting firms in Europe

Tailornova/CouturmeWinter 2019

AI for Instantly Manufacturable Fashion

telliFall 2024

AI phone agents that convert

TergleWinter 2025

AI agents for Audit

TerraSummer 2024

Terra is like Faire for custom goods

Text.aiSpring 2025

AI in your group chats

The Forecasting CompanySummer 2024

Foundation models for time series

TheseusSummer 2024

GPS Denied Navigation for Drones

Third ChairSpring 2025

Agents for in-house legal teams

ThorntaleWinter 2024

The world's best presentation editor, powered by AI.

Thunder ComputeSummer 2024

Launch GPU instances in one click for 80% less

TileWinter 2024

AI-first notebook for building operational data apps

TinfoilSpring 2025

Tinfoil makes your AI workflows secure, verifiable, and private.

TinyFall 2024

A new kind of ERP system for factories

TivaraSummer 2024

The AI workforce for medical groups

TomaWinter 2024

AI Workforce for Automotive

Toothy AIWinter 2025

AI for insurance verification & billing at dental clinics

Top RoadWinter 2022

Payments & analytics for apps in the OpenAI GPT Store

TowerWinter 2024

Legal due diligence platform powered by AI

TraceWinter 2025

Voice AI Customer Support for Financial Services

TracecatWinter 2024

Open source Tines / Splunk SOAR alternative for security engineers.

TradeFlowSummer 2024

AI-powered settlement for financial securities

Trellis AIWinter 2024

AI for streamlining healthcare paperwork

TrimWinter 2025

A foundation model for physics.

Truffle AIWinter 2025

AWS for AI Agents

UltraSummer 2024

Practical, general-purpose robots for repetitive industrial tasks

UltraWinter 2024

Advisor for Ambitious Students

Uncommon TherapeuticsWinter 2025

A Disease Focused Biotech, Building Multiple Billion Dollar Drugs

UnusualFall 2024

Tailor your website for each visitor.

Uplift AISummer 2025

Foundational Voice Models for regional languages

UpshiftFall 2024

Cloud workspace for coding agents

UsulSummer 2024

Win defense contracts with AI

VantelWinter 2025

AI Software for Commercial Insurance Brokers

VariantFall 2024

Creative intelligence

VendraSummer 2024

Custom Parts, Manufactured in America 🇺🇸

Vera HealthSummer 2024

AI-powered clinical decision support for healthcare providers

VerbiflowWinter 2025

People search that works

Verse TherapyWinter 2024

Connecting All Ages with Speech Language Pathologists

VespperFall 2024

AI document authoring platform for regulatory professionals in life…

VetnioWinter 2025

AI Copilot that automates admin work for veterinary professionals

VibeSummer 2024

Making everyone a software engineer

vly.aiFall 2024

The world's best AI web app builder

VoidSummer 2024

The open source Cursor alternative