Y Combinator
5,800+ companiesWorld's most successful startup accelerator · W05–W25 · ● = hiring · search queries the full database live
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- Local-first least cost routing system to reduce 80%+ token spend
- Firmware simulation for AI agents
- World models for agents
- Energy world models that fix energy waste before it becomes expensive.
- The computer-use agent that doesn't break on real software. We will…
- AI-native Big-4 (Accounting & Finance) Firm for Regulated Industries
- Agentic chip design with ultrafast feedback loops
- The secure research brain for accelerating R&D
- We deploy robots for inspections in hazardous spaces, like nuclear.
- Evaluating robots in the real world.
- Turn manual workflows into AI agents
- The Identity Gateway for AI Agents
- Agents that drive customer success
- We help contractors dig safer with 3D maps of underground…
- Unlocking enterprise data for tomorrow's economy
- Builders of the first AI-native government affairs firm.
- The financial operating system for the companies building the future.
- Drone swarm defence at a small-unit level
- Rocket cargo delivery to contested environments
- Distributed, hardware-agnostic AI inference
- Your coding agent writes code. Now let it fix prod too.
- Autopilot for Flight Operations
- AI-native materials discovery powered by unpublished experimental data
- Infrastructure for Physical World AI Agents
- Boutique Hotels that run themselves
- AI for every workflow inside a credit team
- Turns every company into a data vendor
- AI agents to run primary healthcare operations
- Product analytics for teams building conversational agents
- debit cards for AI agents.
- Fast-turn, American made PCBs
- Give your AI agents email, phone, iMessage and an internet address
- Agentic data layer for manufacturing & process industries.
- Autonomous construction on Earth and beyond
- Data for computer-use ai
- Agent-native accounting firm.
- Buy, sell, and redeem GPU hours for any week with instant liquidity
- The dental practice that runs itself
- Mass-produced AI strike systems and Counter-UAS
- Replaces title searchers and closes property deals
- Agent-native research and simulation platform for investors
- AI-Native Brokerage for Hard-to-Place Commercial Insurance
- AI-native orchestration for physical R&D testing
- The world's frontier hacker for AI agents.
- AI Employees for Accounting
- Human as API for robots
- Let your users build their own features on top of your product
- AI Operating System for Wholesale Distributors
- AI advanced planning and optimisation for manufacturers.
- Self updating wiki for your coding agents