YC Summer 2026 B2B Startups

We find where AI agents fail, then train better models to run them.

Databricks for Enterprise Codebases

Reliable and safe data engineering and data science agents

Organizing company knowledge

OpenRouter for Agent Tools

High performance file system for agents

API sandboxes, built for AI agents

Autonomous IT Delivery

AI agents that run small businesses

Hotels that run themselves

Your custom AI model factory

AI employees that run home appliance repair companies

AI-native Accounting Firm that's killing Deloitte

OpenClaw for manufacturers

Agent analytics for real user outcomes

AI collections agency for late stage portfolios

The AI Operating System for Auto Shops.

Hosting platform for software you can't afford to have hacked

AI that finds value creation opportunities across enterprise…

We help startups win gov contracts

Research services for ChatGPT and Claude

The AI Coach for in person sales reps.

The biggest crowdsourced benchmark for Computer-Use

The AI gateway for cheaper, faster, permissioned agents.

Least cost routing system to reduce 70%+ token spend

We give AI agents realtime web context via API

RL post-training for science reasoning and performance engineering

AI-native test infrastructure layer for hardware companies

The secure training data R&D engine for physical AI

Training company-specific models that approve AI actions.

Network for Physical AI Data Business

AI Brokers for Industrial Trade

The AI-native contact center

Multiplayer workspace for agents and humans

The AI-native trading company: factory prices, delivered, one number

Using VLMs to Catch Damage

Quant Neolab building self-improving agents from quant data

AI That Operates Energy Infrastructure

World Model for Freight

We help lawyers start and scale AI-native law firms.

The open source tool gateway

Open source AI gateway that turns your traffic into better models

The world's frontier hacker of AI agents.

Movies in Every Language. Better than Humans.

Connect your agents to the stock market

The Git forge for the next hundred billion commits

Institutional Learning Layer for Every Agent in Your Company

On-device Knowledge Graph engine for Enterprise Software

AI tools for the chips your AI runs on

Autoresearch as a service: we solve your hardest measurable problems

Effortlessly deploy cloud software factories.

AI engineer that debugs and fixes production incidents in realtime

Building intellectually curious AI

The identity and communication layer for AI agents

AI For The Skilled Workforce

Lightning fast chips with hardcoded AI models

AI-native accounting firm.

Predict how market participants behave

Fully automated GTM for small business

Evals for humans

Locke powers agentic government work.

API-first tax engine for CPA firms and developers

AWS for Agents

Monetize your agent's traces.

The autonomous back-of-house for restaurants.

Platform + FDEs that rebuild enterprises agent-first

Expert computer-use data for frontier AI labs

Engineering Intelligence and Token Optimization for the AI-Coding Era

Search Engine for the Physical World

Defining the frontier of multiplayer AI.

The crowdsourced benchmark for AI-generated music and music production

Autonomous AI defense system for cyber attack

AI for high volume GTM Engineering

Building multi-agent simulations for model evals and training.

The open source AI teammates for your company.

The cheapest, fastest inference cloud

We turn company data into training data

Distributed, hardware-agnostic AI inference

Model Agnostic AI coworker in Slack

AI that turns any camera to an autonomous worker with real-time vision

Self-optimizing neocloud that cuts LLM costs by 100x

AI growth engine for corporate law firms.

The frontier data platform for aligned health and biological AI

The Media Engine of the AI Era

AI-native sales agents that run marketplaces

AI that finds and fixes OS-level vulnerabilities across device fleets

Agentic OS for e-commerce operations

Replacing GPUs with human brain cells

AI-native freight brokerage

We make law firms AI-native.

Internal industrial company data for frontier labs

LinkedIn for agents

The customer brain that connects data to explain customer behavior

A cloud devbox that feels local

AI-native back-office for banks and fintechs

First Zero-human Accounting Firm

Scale AI scientists whose own breakthroughs accelerate the next.

AI-native BPO for enterprise order-to-cash

Earned intelligence for every company

The IDE for Tokenmaxxers

Turn your company's computer work into AI agents.

Give your company the knowledge it deserves

We help Fortune 500 companies hedge their supply chain risk

AI agent that manages manufacturing operations over text

AI-native procurement services for the physical economy

OpenRouter for Voice AI: one API, every call on the best speech model

Teaching AI to Design Chips

Accurately simulate market response at scale

Supply chain compliance and cost savings

Infrastructure for building and scaling AI-native businesses.

Market for future inference capacity

CrowdStrike for AI Agents

Combining open-source AI models for better answers at lower cost

Autonomous offensive security agents. The best defense is offense

AI FDE that deploys custom AI agents into ERPs

Local creators for local businesses

Let your users build their own features on top of your product

AI cybersecurity for financial institutions' digital assets

Agentic procurement & inventory for deep tech teams.

AI Operating System for Wholesale Distribution

Agentic Hotel Operating System

The AI BPO for financial servies, run by computer-use agents