YC Fall 2026 (F26)
173 companies Y Combinator lists for Fall 2026, with what each one builds. 70.8% of the tagged companies are AI, down from 74.1% in S26.
- Companies
- 173
- AI share
- 70.8%
- Top sector
- Manufacturing and Robotics
- 20 companies
- Second
- Engineering, Product and Design
- 19 companies
What’s in Fall 2026
Fall 2026 lists 173 companies so far (S26 had 230). The biggest themes by YC's tags are Developer Tools (24), Infrastructure (19), Robotics (19), Hardware (17) and Manufacturing (13). The largest sectors are Manufacturing and Robotics, Engineering, Product and Design, Infrastructure and Insurance. 12.9% are based outside the US.
- Developer Tools · 24
- Infrastructure · 19
- Robotics · 19
- Hardware · 17
- Manufacturing · 13
See YC's Fall 2026 Request for Startups · Breakout themes across batches
All Fall 2026 companies
173 companies
- Acyclic LabsAI
Agent swarms that make long-running tasks exponentially faster
Infrastructure2London, England, United Kingdom - Adside.aiAI
AI agency that manages paid ads on Meta, Google, LinkedIn, etc.
Marketing2San Francisco, CA, USA - Agent 37AI
Persistent sandboxes for agents like hermes, openclaw, claude code
InfrastructureNew York City, NY, USA - Agent RelayAI
Let your teams' coding agents message each other
Engineering, Product and Design2San Francisco, CA, USA - AgeospatialAI
Physical intelligence for every decision with Geospatial AI.
Insurance1San Francisco, CA, USA - Altair HealthAI
Stripe for medical billing
Healthcare Services4Austin, TX, USA - antimattrAI
voice-first hardware interface for human-agent interaction
Consumer Electronics2San Francisco, CA, USA - Antropi Robotics
Autonomous CNC factories for faster hardware
Manufacturing and RoboticsSan Francisco, CA, USA - AnyAlpha
The agentic trading platform
Fintech2San Francisco, CA, USA - Applied KineticsAI
AI-native manufacturing for data center and energy projects
Manufacturing and Robotics2San Francisco, CA, USA - Archangel Health
Infra to make AI safe enough to practice medicine
Healthcare2San Francisco, CA, USA - Armorer LabsAI
Continuous security verification for AI agents in regulated industries
Security2San Francisco, CA, USA - Asakana
Automating away manual admin for food distributors: texts to ERP
Supply Chain and Logistics4San Francisco, CA, USA - Ascenix
Clinical intelligence layer for skilled nursing facilities.
Healthcare IT7Toronto, ON, Canada - AsimAI
Enable robots to operate safely in the real world.
Manufacturing and Robotics4San Francisco, CA, USA - AucertAI
A team of expert AI agents that test mobile apps on their own.
Engineering, Product and Design2San Francisco, CA, USA - AudoraAI
Audiobooks where every character has their own voice.
Consumer1San Francisco, CA, USA - Aviern
Unmanned cargo airplanes
Drones4Los Angeles, CA, USA - Boat
The best cloud VMs for billions of agents
Infrastructure3Paris, Île-de-France, France - Boxes.devAI
A better place to run your coding agents.
Engineering, Product and Design2San Francisco, CA, USA - BryelAI
Perceptual reasoning models that are easily customizable
Infrastructure2San Francisco, CA, USA - ByteAskAI
The AI coding agent for C and C++
Engineering, Product and Design2San Francisco, CA, USA - Capveon
Turning infrastructure demand into action
Government2San Francisco, CA, USA - CavemanAI
Caveman cuts what AI agents cost without making them dumber.
B2B1Amsterdam, NH, Netherlands
Source: Y Combinator’s public company directory. Each company links to its YC profile. See how we count and what YC asked founders to build.