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.

Tamarind BioWinter 2024

Easy to use computational biology tools for drug discovery

TandemSummer 2024

AI-assisted office leasing platform

TaxGPTSummer 2024

AI tax assistant for professionals and businesses

Taylor AISummer 2023

Unified Platform for Text Enrichment

TelophaseSummer 2023

Reach vulnerability inbox-zero

TempoSummer 2023

Visual Editor for React, powered by AI

TensorfuseWinter 2024

Run serverless GPUs on your own cloud

TerminalSummer 2023

Plaid for Telematics Data in Commercial Trucking

Terracotta AISummer 2023

AI-powered Infrastructure as Code PR reviews

TerrakottaWinter 2024

AI platform for phone-first sellers

TesseralWinter 2024

The open source platform for managing identity in business software

Texel.aiWinter 2023

Run AI pipelines 10x faster

The New Money CompanyWinter 2024

Invoicing that pays you even if your buyer doesn’t

TheyaWinter 2023

The world's simplest Bitcoin self-custody solution

ThreadWinter 2023

Lifeline for your business

throxySpring 2025

Vertical AI agents that run the sales funnel on autopilot

Ticket WalletSpring 2025

AI-optimized ticket resale

TokenOwlWinter 2024

AI portfolio tools for the next generation of finance

TopoWinter 2024

AI sales agent custom trained for each company to reach the best leads

TraceloopWinter 2023

Know what your LLM is doing — and why it’s failing

TrainySummer 2023

Infrastructure for managing GPU clusters for training/serving.

TransformitySummer 2023

Point-of-sale & Vertical SaaS for the $75B Liquor Industry

TrieveWinter 2024

All-in-one API for search, RAG, & recommendations

TrueClaimWinter 2024

Transparent, AI-powered healthcare TPA.

TruewindWinter 2023

AI-Powered Accounting

truthsystemsSummer 2025

Automatically blocking risky behavior with real-time governance agents

Tuesday LabWinter 2024

Delightful robots

TurntableWinter 2023

AI-native operating system for analytics teams

TuskWinter 2024

AI agent that generates unit and integration tests

TwentySummer 2023

Open Source CRM

TwineSummer 2023

AI text message receptionist for SMBs

TypaSummer 2024

AI-powered, professionally reviewed ghostwriting for busy founders

TypeWinter 2023

The AI-first document editor.

UbicloudWinter 2024

Open source alternative to AWS

UnboundSummer 2024

Use AI tools without fear of data leakage

UndermindSummer 2024

An AI agent for scientific research

UniverbalWinter 2023

Language learning with a conversational AI Tutor

Unsloth AISummer 2024

Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.

Upsolve AIWinter 2024

Embed GenBI in Your SaaS App

UpstreamSummer 2023

An email client designed for team collaboration

VaeroWinter 2023

AI for Human Writing

VaultPaySummer 2023

Digital banking platform for the 30 million smartphone users in DRC.

VectorShiftSummer 2023

No-Code Generative AI Automations Platform

VelesWinter 2024

The Sales Calculator

VellumWinter 2023

The AI Product Development Platform

Velorum TherapeuticsWinter 2024

Breakthrough medicines unlocking the biology of heme

Venta AISummer 2023

The EU-compliant AI SDR that sends letters, emails and LinkedIn

Venue.inkWinter 2022

Software for tattoo artists and studios

VetRecSummer 2023

AI Scribe for veterinarians. Saving time and improving patient care.

VibeGradeSpring 2025

Cursor for Teachers

VideoGenSummer 2024

AI that can create and edit professional videos

Village LabsSummer 2024

Helping America's businesses become employee owned

Vista PowerWinter 2024

Batteries and solar for $0 upfront to help businesses save money

VitalizeWinter 2023

The OS for Hospital Operations

VocodeWinter 2023

Open source Voice AI

VoiceOSSpring 2025

Voice AI Interviews for Enterprise

VoicepanelWinter 2024

AI agents for customer research

VoxOps AIWinter 2024

Voice AI for regulated industries

WaldiumSummer 2023

Build AI-optimized blogs that rank in AI search results

Wand SolarSummer 2022

We enable landlords to generate income from solar panels.