YC AI Companies

Data-centric infrastructure to accelerate the development of AI

Get more leads. Make more money.

People infrastructure for the future of work

Simulated audiences for customer research

Agents that accelerate clinical trials.

Programmable DNA drug destroying all cancers, unlocking 80% of targets

Custom command centers for hedge funds

AI-Native Customs Brokerage

Robotic pitstops for self-driving cars

Maximizing compute via hyper-efficient cooling

AI-native consulting to map and automate business processes

AI infrastructure for marketers. Ship campaigns in your tools in an…

AI-native credentialing and contracting for healthcare

AI Agent for Therapists

On-demand consumer insights

The Self-Driving Company Brain

Your next user is an agent. We help you optimize the AX.

AI that turns events into pipeline

The Authorization Layer for AI Agents

AI agents that automate SOX control testing.

Data Science Autopilot for the real economy.

We make your product discoverable and usable by any AI agent

Create & play AI games with friends

Phone Numbers for AI Agents

Staging Environments for Enterprise AI Agents

The first wearable that reads your emotions to enhance your EQ.

AI Takeoffs Built for Concrete

HPC for Quant Trading Firms running backtesting at scale.

AI native specialty insurance company

Autonomous e-commerce

AI powered construction cost estimation & analytics.

Human Intelligence for Robots

End-to-end case workups for personal injury firms.

Infra layer for smarter and cheaper AI agents

iMessage infrastructure for trusted communication at scale

Deterministic Computer Use Infra for AI Agents

Marketplace for AI agents to hire humans.

The eval platform for autonomous software

AI coach for athletes with real lives and epic goals

AI Reservation System for Restaurants

The AI-native OS for IT

Building Napkin Math, AI-powered food journaling for real people

Database sandboxes for Agents

The First AI-Native AI Research Lab

Insure and secure your AI Agents

Full-stack Medical Billing Services

Claude Cowork for social media and creator marketers

Liability insurance for AI Agents. You deploy agents, we cover you.

Autonomous services for humanity.

Your AI agents, working as a team.

Observability that installs itself and fixes the bugs it finds.

Customize your software to every user with AI

Automated forward-deployed engineers (AI FDEs)

Voice-first computer use for Mac. Lives in your notch.

Hedge fund where AI researches and executes every trade

Turn more website visitors into customers

AI Broker Connecting American Brands With The World's Best Factories

Browser for AI agents

Deploying robots that ask for help!

Reasoning for Electronic Design Automation

Intelligent one-way attack drones

We automate the inventory process in insurance

Autonomous manufacturing for mechanical parts

Turn agents into lifelike video calls. $0.06 a minute.

AI for portfolio managers

AI primary care doctor

Let all your team ship safely with coding agents

AI scientists to discover semiconductor materials

Prompt-to-play AI game builder for everyone

Test your app with AI, catch bugs before users do

The AI-native consulting firm for AI transformation.

AI Recruiters for Staffing Agencies and Enterprise

AI agents that interview every employee to map how work gets done.

AI Native Technical Documentation Studio

Infinity: the first OS where humans and agents work with no limits.

API for real-world training data.

AI voice agents for enterprise telephony systems.

Agentic hiring marketplace

AI that automates servicing for commercial lenders

Training data for frontier AI labs

Background coding agents for engineering teams

The Intelligence Layer for Manufacturing.

Communication for agents

AI automation for the manufacturing office

AI that gets hardware compliance done in weeks, not months.

sandbox infrastructure for AI agents

Building AGI that can innovate.

AI automated prior-auths for private medical practices

Continuous Fine-Tuning for AI Models

AI-native operating system for enterprises

AI SRE agent that triages, coordinates, and fixes production incidents

Guardrails to validate your agent's actions before they execute

We match you with jobs and apply automatically

AI that understands human culture

API for performance-based payroll

Energy independent data centers with solar and repurposed batteries.

The World's Largest Video Library

Modular AI-Commanded Drones for Defence

The AI-native platform for next-generation protein characterization.

Bizzy works 24/7 so you never miss a lead.

Implantable microchips and AI for cattle monitoring

Starjar automates inbound document processing workflows for hospitals

Automation System for Global Aviation

Data Development for Advanced AI

The OS for financial advisors

AI-native canvas for creative workflows.

Payroll, benefits, state compliance & other bullsh*t for startups

Self-improving content bank for marketing

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

AI powered games

AI Notetaker that automates all your admin work

A recommendation system for great Internet writing

Metadata for GenAI workflows

Your junior AI product manager

Turn expensive prompts into cheap fine-tuned models

Build and publish web apps in minutes. No coding required.

AI agents reliable enough to do real work

Close your outdated dependency attack vector

Close deals faster with AI for contract negotiation

Open source GenAI development platform

AI Co-Pilot for Health Insurers to Authorize Treatment Faster

Automate outbound with signals

Speed up customer implementation with AI

Conversational data analytics for every team

Open source LLM engineering platform

The interface for your database

Generative AI Photographer for E-Commerce

Open Source Embedded Product Integrations

Open source tools & services for reliable AI Agents & AI Applications

Real-time speech translation