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.

AftercareWinter 2024

Conversational AI surveys with intelligent follow-up questions

Afternoon.coFall 2024

Bookkeeping, compliance and tax for founders

AfterQueryWinter 2025

Research lab investigating the boundaries of AI capabilities.

Agentin AIWinter 2025

AI Agents that automate enterprise software processes

AI SellSummer 2024

AI Sales Associate for Ecommerce

AidyWinter 2024

Persistent research on the issues that drive key company decisions

AlexFall 2024

The Cursor for Xcode

Alice.techWinter 2025

AI-driven exam prep

AminoAnalyticaSummer 2024

The AI-Native Operating System for Protein Engineering

AngleraSummer 2024

AI-Powered Product Data Enrichment

Ångström AISummer 2024

Gen AI molecular simulations that reproduce wetlab results

AnthrogenSummer 2024

We're training the next generation of protein foundation models.

AnvilSpring 2025

Anvil is the SEO platform for the AI era

ApolinkFall 2024

24/7 satellite connectivity in low Earth orbit

AravoltaSpring 2025

Software to monitor, control, and optimize data centers.

ArchilFall 2024

Transform S3 in an unlimited, local file system

ArchiLabsFall 2024

AI Copilot for Architects

ArchonWinter 2025

We help software companies sell to government.

Ares IndustriesSummer 2024

Building low-cost cruise missiles

AriniWinter 2024

AI receptionist for dentists

Artificial SocietiesWinter 2025

We use AI to simulate entire human societies

Arva AISummer 2024

AI Agents to scale AML, KYB and KYC operations

Asha HealthFall 2024

We help medical practices become AI-native

assistant-uiWinter 2025

Open Source React.js Library for AI Chat

AsteroidWinter 2025

AI Browser Agents for the Back-Office

Astrix HealthFall 2024

Astrix builds better healthcare data products.

AstroWinter 2025

The world’s first AI energy developer

AtlogSpring 2025

Voice Agents for Physical Retail Stores

attimetFall 2024

we predict stuff

AttunementWinter 2024

Automation workflow for psychiatric assessments.

Atum WorksSpring 2025

Gigascale Nanomanufacturing

AugentoWinter 2025

Improving Agents through Reinforcement Learning

AutoComputerFall 2024

Desktop RPA with AI computer use

AutoPallet RoboticsSummer 2024

We make robots that move boxes in warehouses

AviroSpring 2025

Task Time Intelligence for Enterprise AI

AvoraFall 2024

Agents for dental operations

AxiomWinter 2025

Trade memecoins, perpetuals, and earn yield.

BasepilotWinter 2024

AI coworkers to automate browser work, in minutes.

BayeslineSummer 2024

Highly customizable and blazingly fast analytics for asset managers.

BeeBettorSummer 2024

Robinhood for sports prediction markets

Beluga LabsSpring 2025

Rippling for Content Creators

BenchifySummer 2024

Instantly Repair LLM-Generated Code

Bild AIWinter 2025

AI that understands construction blueprints

BindwellWinter 2025

Discovering new pesticides with AI

BiteSightWinter 2024

The video-first food delivery app. Imagine TikTok meets DoorDash.

BitPatrolSpring 2025

AI-powered code security

Bits to AtomsSummer 2024

Match job seekers to roles at deep technology startups.

BlacksmithWinter 2024

The fastest way to run your GitHub Actions

BlastSummer 2024

Helping enterprises build safe and compliant LLM apps/agents

BlaxelSpring 2025

AWS for AI Agents

BlindPayWinter 2025

Stablecoin API for global payments

BlueSummer 2025

The first voice assistant that can control every app on your iPhone

BluebookWinter 2025

AI for accounting

BlueshoeSpring 2025

The AI platform for legal reasoning

BookMyFlightFall 2024

We're making booking a flight as easy as booking an Uber.

Brainbase LabsWinter 2024

Applied AI research lab enabling the global AI workforce

Bramante BiologicsSpring 2025

American drug manufacturing

Browser UseWinter 2025

Leading open-source web agent project with 50k stars in 3 months

BrowserOSSummer 2024

Open source Agentic Browser

Bucket RoboticsSummer 2024

Defect detection for manufacturing built from CAD and synthetic data.