Y Combinator Winter 2025

AI Sales Teams for Dental Practices

We make mobile apps using AI.

The social network layer for AI apps

AI Powered CAD

Applied research lab curating data solutions for foundation model…

AI Agents that automate enterprise software processes

AI-driven exam prep

The SOP Automation Platform

The health coach that texts you first

We help software companies sell to government.

An Collaborative, AI-native IDE for Hardware Engineers

We build networks of AIs to simulate high-value audiences

Open Source React.js Library for AI Chat

The integration layer for healthcare: EHRs, payer portals & more

The world’s first AI energy developer

Be the Answer in AI Search - AI SEO across SEO, GEO & AEO

awen translates intent into exceptional visuals through conversation

Service company that designs, sources, and quality-tests custom PCBs

Trade memecoins, perpetuals, and earn yield.

Digital AI humans that model clothes for e-commerce brands.

AI estimating & detailing for Division 8 doors, frames & hardware

Discovering new pesticides with AI

Stablecoin API for global payments

AI for accounting

Leading open-source web agent project with 50k stars in 3 months

Agent with a computer

Embedded Sandboxes for Agents

Your partner for hotel ownership data.

Enterprise-grade AI support reps for call centers

We help companies win government funding with AI

Protect your data and stop insider risk

AI compliance co-pilot for regulated financial businesses

Voice AI teams for medicare agencies.

How elite law firms do intake

Execute the best sales playbook in industry

AI agents for conversational commerce

AI Accountant for Accounting Firms

We help law enforcement solve crime

The LLM Eval and Observability Platform for AI Quality

AI to monitor thousands of security cameras.

AI hiring platform powered by expert recruiters

AI agents built for insurance.

Connect your users to their apps

Real-time AI translator for global sales and marketing

AI-Powered Hardware System Design Software

AI-native remote operations center for hardware fleets

Agents for Accelerated Clinical Trial Design

The AI Coworker in Chrome

Character.AI with real time video avatars

AI Teacher Assistant for Grading Essays

Automated revenue cycle management, starting with dentists

Cooking something sweet and salty!

AI for air traffic control

AI agents and unified data layer for revenue teams

AI tutor starting with maths and science

AI drug discovery platform for neurotherapeutics

Building agents that reads logs and fixes issues on your behalf.

The AI investment analyst

Financial research platform for investment firms

The AI Voice agents for hotels

Software Enabled CNC Parts Supplier

#1 AI Platform for Outbound Sales

Simplifying Collaboration for Healthcare Organizations & Professionals

Fast and Data-Driven Immigration Platform

AI for the physical world

AI Healthcare Provider Credentialing Software

AI-native commercial insurance brokerage

AI-powered Patient Identification for Clinical Trials

Voice AI for Home Services

Platform for building RL environments and evals

Global B2B Stablecoin Processor

Building lunar landers

Manufacturing the most powerful chips, 15x faster

infra for computer use agents

AI native consumer lending platform for underserved Americans

Stablecoin neobank for emerging markets

AI voice and texting agents

Headless Data Team

interactive video models

Reimagining how Machines Learn

AI Agents for Complex Engineering Projects

AI for Home Services

Fusion reactors for ships

The Javascript framework for building AI agents, from the Gatsby devs

Foundation models to automate x-ray analysis for radiologists

Building the open source smart glasses operating system.

AI Quote and Order Automation for Distributors & Manufacturers

Eliminating accrual spreadsheets for faster month-end

Misprint is building Robinhood for Pokemon cards

AI tutors for exam prep

Frontier Video Agents

High Quality Multilingual Training Data for AI Models

Frontier AI research to advance game development

The digital home for your personal memories that grows with you

Curated stories, every day

Cursor for Designers

The AI Front Door For Law Firms

AI performance monitoring for factory workers

High Thrust Space Vehicles for Satellite Defense

Reinforcement Learning (RL) for AI Agents

Customer Context for Agents

Hire amazing engineers by seeing how they use AI

Navigate any set of data - no matter how large - in minutes.

Founder led hiring for London startups

The AI Growth Engine for Industrials

The first healthcare GTM data platform

Robots that repair roads

More 𝛼, less latency: exchange and HFT on one chip.

In-call AI teleprompter that helps reps close enterprise deals

AI co-pilot for building plan review and building code compliance

Where your life context becomes understanding.

Real-time AI Voice Translation for Developers

Regulated derivatives exchange

The agentic AI Word editor

Making humanoids dexterous enough to thread a needle

An AI teammate that automatically updates your customer-facing docs

AI documentation engineer – test & autoimprove stale product docs

Financial OS for Modern Fleets

AI-Powered Company OS

A Roomba for weeds on a farm.

Reusable Satellites

We turn complex API integrations into drop‑in full‑stack libraries

A vintage marketplace curated by AI

Automating refurbishment of $1T in consumer electronics

AI Employees for Hotels

Test, monitor, and improve your voice agents

The AI Maximalist Software Holding Company

AI powered operating system for distributors and OEMs

Computational Law

AI-powered student information system for K-12 schools

We turn traditional companies into AI companies

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

Autonomous patrol-boats for National Security

AI-native ATS/CRM for recruiting firms

The AI Secretary for Email and Calendar.

Next-Generation Power Electronics

Electrical Engineering Components Compaion

The Open-Core Security Graph

Daily productivity tracker

Zero code network tracer

connect, migrate and implement enterprise systems

Chat with AI Characters

Agent Teams for Professionals

Book and manage all of your golf tee times in one place.

Vercel For GPUs

AI Agents for Audit

AI Compliance for Affordable Housing

AI for insurance verification & billing at dental clinics

Reasoning Fine-Tuning

AI-powered research desk for hedge funds

AI agents for global trade compliance

A foundation model for physics.

AWS for AI Agents

Lovable for Chrome Plugins

A Disease Focused Biotech, Building Multiple Billion Dollar Drugs

AI Platform for Commercial Insurance Brokerages

Outbound Sequencing Infrastructure for Startups

AI Copilot that automates admin work for veterinary professionals

Voice AI for medical language translation

We automate urban planning so cities can build cheaper and faster.

AI to understand and then route engineering work

AEO/GEO for E-Commerce and Retail

Claude Code plugin that reduces token consumption and cost by 50%

The OS for hospital workforce management

Artificial Specialized Intelligence