YC Fall 2025 B2B Startups

The Creative OS for AI video

AI employees for finance, starting with accounts receivable.

Infra to build your own software factory

Continuous offensive security for the enterprise.

Lab working on long-horizon autonomous research and coding agents

Intelligent media storage for creative teams.

Accelerate Product Iteration

Canva for short-form video ads

Voice AI to enable India's next billion

AI agents that recover lost revenue through real conversations.

AI operating system for home improvement manufacturers

Agentic AI for Society Builders

Your Personal AI for everyday work. Lives in your texts.

AI support done right

AI clerks that automate your payables

AI agents for your healthcare back-office operations.

Localhost service isolation and orchestration for git worktrees

The AI Reservation Team for Hotel Groups

Global Compliance for Enterprises

The coding agent that actually collaborates with you

AI Tax prep and accounting software for CPA firms

Excel AI analyst for Power Users

The Routing Layer for AI Agents

AI agents for on-call

The full-stack AI financial audit firm

AI-powered market due diligence for investment decisions

A unified API for prediction markets, like Kalshi and Polymarket

Simulate your customers with AI agents

Lovable for mobile apps

Training Data for Recursive Self-Improvement

Agentic AI for Mainframe Operations and Modernization

Your Company Brain

We reverse engineer B2B growth, starting with LinkedIn.

The AI-Native CRM that works for you

AI Employees for human-level roles

Scaling Generalist Speech models

The Waymo of Personalized demos

AI Agents for Platform Engineering

AI that creates and runs ads, end-end

Qualified leads for agentic workflows.

Production Monitoring for AI agents

AI Operating System for Legal Teams

Payment infrastructure for AI agents

A proactive desktop copilot. Clippy, but actually good.

The sensitive data redaction layer for AI

The mid-market agent platform

Lunavo is the AI assistant for carriers.

The autonomous business platform

Compliance that makes products ready for global markets.

Agentic infrastructure to power AI-native companies.

Identify churn risk and stay close to users at scale

Real-time semantic search for Conversational AI

AI Agents for Hardware Engineering

Turn AI adoption into a recurring revenue line.

Zero-trust authentication, authorization, and auditing for AI agents

The shared context layer for recursive companies - your work, your…

We help non-technical teams build AI agents without engineers

The AI workforce for People and Finance teams

Build an API to interact with any website.

AI for detecting patent infringements

Applied Lab focused on Search in Latent Spaces.

AI product specialists for equipment manufacturers

Code and browse in the same place

Intelligence that moves the world

AI Legal OS

Explore dozens of design directions with your agent

AI FDE Engine that runs your engineering workflows

API for unlimited, durable, real-time streams

Expert STEM reasoning data for frontier AI labs.

Automating regulatory submissions for life sciences

The planning layer for teams that build with coding agents

The all-in-one software for integrators.

Studio-Grade Design at Scale

Infrastructure for AI labs to focus on research.

Tinder for jobs

The AI workforce for business operations.

Helping humans and AI agents understand massive codebases

The cloud platform built for coding agents

Real World Environments and Data for AI

Specialized AI Agents.

AI agents on real phones, growing brands across every platform.

Find what's losing you customers and money in your AI agent and fix it

Real-time web intelligence API for AI agents and GTM teams

The Agent to Build Your Agents

API for parsing multimodal unstructured data

Replace marketing agencies with AI

World model datasets and research

Continuous AI pentesting that finds and fixes vulnerabilities

Hire Zalos AI workers to run your finance department

AI Associates for Middle-Market Private Equity

Unlocking the world’s most valuable data for frontier AI.