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.

ButterWinter 2025

Behavioral Cache for Agents

BystreetWinter 2025

Source deals with AI research agents

CactusSpring 2025

AI copilot for solopreneurs

CallbackSummer 2024

AI-native business process outsourcing

camferSummer 2024

Building the world’s first AI mechanical engineer.

CandleFall 2024

Candle helps couples and friends grow closer daily in just 5 minutes.

CanvasFall 2024

The AI GTM Engineer

CapyFall 2024

AI Software Engineer

careCycleWinter 2025

Voice AI teams for medicare agencies.

CasixtyWinter 2025

Reddit Marketing Agent for technical audiences

CekuraFall 2024

Voice AI and Chat AI agents: Testing and Observability

CellbyteWinter 2022

AI Agents for Pharma Drug Launches

CenoteWinter 2025

Automate back office tasks for medical clinics

CerulionSummer 2024

Open source operating system for robots

CharmFall 2024

Charm is the universal payments app — send money to anyone.

CheersSummer 2024

Reputation engineering for frontline brands

ChorrieFall 2024

Intelligent automation for healthcare

CirclemindFall 2024

Circlemind makes general AI agents

ClaimSortedSummer 2024

Making it easy for insurance companies to process claims

ClaraSummer 2024

Helping families discover, hire, and manage in-home caregivers

ClarionWinter 2024

The AI communication layer for healthcare

Clearly AISummer 2024

Automate security and privacy reviews

ClosureWinter 2025

We help law enforcement solve crime

CloudCruiseWinter 2024

The developer platform for fast and reliable browser agents

CloudglueSummer 2024

Developer APIs to let your AI/LLM understand videos and audio.

CoblocksFall 2024

Build data pipelines in minutes with AI

CodebuffFall 2024

The CLI tool that writes code for you

Codes HealthSummer 2024

Perfect medical histories.

CodeVizSummer 2024

Visual Search Engine For Code

CohesiveSpring 2025

The agentic CRM for blue-collar services

CollectWiseFall 2024

Automating consumer debt collection with AI

CombinelySpring 2025

AI coworker for accountants

Comfy DeploySummer 2024

ComfyUI for everyone on your team

CommodityAIWinter 2024

AI that automates commodity operations

ConductorSummer 2024

Run a bunch of Claude Codes in parallel

Conductor QuantumSummer 2024

Quantum computers on silicon chips using AI.

ConduitWinter 2024

Conversational AI agents for Support and Sales

Confident AIWinter 2025

Open-Source Unit Testing for LLM Applications

ConntourWinter 2025

AI to monitor thousands of security cameras.

ConsusFall 2024

Your single source of truth for government documents

ConveoSummer 2024

Qualitative Research Conducted and Analyzed by AI

Copper HealthWinter 2024

Modern patient engagement and remote therapeutic monitoring platform

CopyCatWinter 2025

The AI RPA - Powered by Browser Agents

CorgiSummer 2024

Corgi is building an AI insurance company

CosmicFall 2024

Build, monetize, and deploy full-stack websites in minutes

CovalSummer 2024

Simulation & Evaluation for Voice and Chat Agents

CozmoX AIWinter 2022

We help you build AI Employee who can speak, think and do

CreativeModeSummer 2024

Vibe coding platform for video game mods

CrowdVoltWinter 2024

The integration layer for live events infrastructure

CTGTFall 2024

CTGT safeguards against reputational risk from GenAI across your org

Cuckoo LabsWinter 2025

Real-time AI translator for global sales and marketing

DalusWinter 2025

AI-Powered Hardware System Design Software

Dartboard EnergyWinter 2025

AI Analyst for Electricity Markets

DatacurveWinter 2024

Frontier coding data for training and evaluating LLMs

David AISummer 2024

Data for audio AI

Decisional AISummer 2024

AI Native workspace for financial professionals

DelineateWinter 2025

Agents for Accelerated Clinical Trial Design

DemeterWinter 2025

AI Value Creation Team for Private Equity

DexterFall 2024

AI agents for mechanical contractors

DigitalCarbonSummer 2024

Transform Images And Videos Into Immersive 3D With AI