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.

Roe AIWinter 2024

Agentic Risk Operating System for Money Industry

RoundtableSummer 2023

Proof of Human - invisible bot detection

RoveWinter 2024

Travel the world for free.

SafetyKitSummer 2023

AI agents for risk, compliance, and safety

Sage AIWinter 2023

Your self-generating, self-maintaining code knowledge base.

SalientWinter 2023

AI Servicing for Auto Lenders

SameWinter 2024

Build products without coding

SampleWinter 2024

Flexible systems for clinical reasoning.

SantéSummer 2023

All-in-one POS for liquor stores

SaturnSummer 2024

Compliance and back office workflows for Wealth Managers.

SchemeFlowSummer 2024

AI Report Generation for Engineering & Environmental Review

ScritchWinter 2024

AI operating system for veterinary care

SeiWinter 2022

AI Agents for Financial Institutions

Selera MedicalWinter 2024

One-time, device-based treatment for heart failure

SendblueSummer 2023

iMessage for Sales

SerraSummer 2023

Your 24/7 AI Recruiter

ShadeformSummer 2023

The GPU Cloud Marketplace

Shasta HealthSummer 2023

Get physical therapy at home, covered by insurance

ShepherdWinter 2024

Every student's personalized learning assistant

ShibolethWinter 2024

Shiboleth automates lending compliance for financial institutions…

ShortbreadWinter 2023

Read romance comics.

SIDSummer 2023

Serverless RAG to connect AI to company, industry, or person-specific…

SigmaMind AISummer 2022

AI agent platform for Call Centers

SilimateSummer 2023

The copilot for chip designers

SilogyWinter 2024

An AI-powered test and debug platform for chip developers

Simbie AISummer 2023

Clinically-intelligent AI Voice Agents for Healthcare

sizelessSummer 2023

Instant 3D Digital Twins for Smarter Real Estate.

SkyvernSummer 2023

Open Source AI Agent to automate browser workflows via an API

Sleep ResetWinter 2017

Sleep Reset is a clinically proven CBT-i program for better sleep

SlickerSummer 2023

Recover payment failures and maximize subscription Revenue

SmobiSummer 2023

Send texts your customers actually want over RCS

Sohar HealthSummer 2023

AI-powered insurance verification to boost patient conversion.

SolaSummer 2023

Copilot for Robotic Process Automation

SolidroadWinter 2025

AI agents for CX teams, starting with training and QA.

Solve IntelligenceSummer 2023

AI patent drafting, prosecution, harvesting and more for legal teams.

SonautoWinter 2024

Create hit songs with AI

SoniaWinter 2024

AI Therapy

Soundry AIWinter 2024

Professional Quality AI Music Creation

SourcepulseSummer 2023

Fix your biggest software delays with real developer feedback

Spaceium IncSummer 2024

In-Space Refueling

SparkWinter 2024

AI-powered workflows for large-scale clean energy

Speedy LabsWinter 2023

Maximize profits with AI-powered rebate management.

SpherecastSummer 2024

AI Supply Chain Manager for Ecommerce

Spine AISummer 2023

Iterative research reports you can actually use.

Storia AISummer 2024

Open source AI copilot that knows your company's code and its context

StradaSummer 2023

Phone AI agents for insurance

StuddySummer 2023

An AI math tutor for every student

SubsetsSummer 2023

AI-driven Retention Automation for subscription media businesses.

sudocodeSummer 2023

code in plain english

Sully.aiSummer 2021

AI Medical Employees for Healthcare

SuperKalamWinter 2023

AI-Powered Super Mentor for Test Prep

Surface LabsSummer 2023

AI conversion engine for B2B websites -- just add 1 line of code

SweepSummer 2023

The best AI coding assistant for JetBrains

SweetspotSummer 2023

AI for Government Contracting.

SwiftWinter 2024

Embedded finance for online merchants

sync.Winter 2024

AI lipsync tool for video content creators

SynchSummer 2023

Supercharging Sales

SynsoryBioWinter 2024

"If-then" conditional logic for protein drugs

SyntheticFiSummer 2023

Low cost securities-backed lending for financial advisors and HNWI

TalcSummer 2023

Event extraction for Medical Researchers