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.

Guardian RFSummer 2024

Drone detection for US defense and national security

HaleumWinter 2025

Human Risk Intelligence for the AI-era

HalluminateSummer 2025

Data and RL environments to automate knowledge work

Hamming AISummer 2024

Automated voice AI agent testing and monitoring

Haplotype LabsWinter 2024

Personalized prevention using genetics and AI

HarperWinter 2025

AI-native commercial insurance brokerage

Haystack SoftwareSummer 2024

Understand any pull request in under a minute

HazelWinter 2024

AI-enabled procurement for government

HealthSparkFall 2024

Empowering Physical Therapists to Go Independent

HeliumSummer 2024

Self Improving Software

Helpcare AIFall 2024

AI Workers for Healthcare Orgs to Find, Call & Schedule More Patients.

HemutSpring 2025

AI-powered operating system for trucking companies.

HenrySummer 2024

Automating Deal Decks for Commercial Real Estate Brokers

Hestus, Inc.Summer 2024

An AI-powered CAD software

HeyTeloWinter 2025

Voice AI for Home Services

HYBRDFall 2024

The performance hub for modern athletes

HyrexSummer 2024

The COLD Task Framework

ideate.xyzSummer 2024

ideate.xyz is an AI-powered 3D art suite on the web

In The RoomWinter 2019

Real-time connections in physical spaces

IndemniWinter 2024

Cargo Theft and Fraud Prevention Platform

InfiniteWinter 2025

Global B2B Stablecoin Processor

InnateFall 2024

Personal AI Robots

InstinctWinter 2025

Building the lunar future.

InteguruWinter 2024

Integrate with any website via network requests

Inversion SemiconductorWinter 2025

Manufacturing the most powerful chips, 15x faster

InvoWinter 2025

AI-Powered Collections Platform for Food Distributors

ISSENFall 2024

AI realtime voice companion for language learning

Junction BioscienceWinter 2024

AI Hypothesis Engine for Molecular Discovery

Just WordsWinter 2024

Scale hyper-personalized messaging with AI

JuxtaSummer 2025

Building a GPS alternative 100x more powerful with no hardware needed.

K-Scale LabsWinter 2024

Open-source humanoid robots

KabilahWinter 2024

Pioneering Generative AI for Nursing

KaelioSpring 2025

AI operating system for healthcare organizations

Kairo HealthSummer 2024

The AI healthcare workforce

KarmenFall 2024

AI Assistant for Construction Project Managers

KarooWinter 2025

Canadian neobank focused on lending

KastleSummer 2024

AI agents for mortgage servicing

KeetSummer 2024

Authentication for AI Agents

KenleySummer 2024

AI for Consulting

KeyeFall 2024

The Smartest Private Equity Investor

Kopra BioSummer 2024

Genetically engineered viruses that teach your immune system to kill…

Kura AISummer 2024

New State of the Art for Browser Agents

LaminarSummer 2024

Open-source all-in-one platform for engineering AI products

LeapingWinter 2024

Automate bug resolution

LedgerUpSummer 2024

Your AI teammate that handles all billing and revenue from Slack

Lemon SliceWinter 2024

Expressive characters that talk

Lightscreen AIFall 2024

Voice + video AI interviewer

Ligo BiosciencesSummer 2024

AI designed enzymes for the chemical industry.

Lilac LabsSummer 2024

We automate the person taking orders at drive-thrus with a voice AI

Lingo.devFall 2024

Open-source, AI-powered i18n toolkit for instant localization.

LizzaWinter 2022

AI-assitant for managing creator-brand partnerships

LoomboticFall 2024

Wire Harnesses in as little as 7 days

Lopus AIWinter 2025

Data Unification for GTM Analytics

LucibleSummer 2024

Combined checking and investment account

LucidWinter 2025

interactive video models

LuciteWinter 2024

Supercharging Insurance Brokers & Advisors

Lumen PaymentsWinter 2024

Ship AI billing fast - track usage, credits & flexible pricing models!

LumenarySummer 2024

Build working software exceedingly fast in Solar

LumetricWinter 2024

Build AI agents in minutes

LuthorFall 2024

AI-Native Compliance Firm