What they do:
Expert-led data and RL platform for AI labs
Quick facts:
HQ: San Francisco, CA, United States
Y Combinator Fall 2026 Startups
This list has 139 startups and was last updated on Oct 15, 2026. 13 of them are hiring right now. Biggest hubs: San Francisco (96), New York (7), and Los Angeles (4). Largest teams: Perit.AI, Ignition Benefits, and Invertix.
139 startupsPage 1 of 4
Ignition Benefits
Hiring
What they do:
The AI-Native Benefits Brokerage
Quick facts:
HQ: Los Angeles, CA, United States
Voyager
Hiring
What they do:
Open harness for video and other creative work.
Quick facts:
HQ: New York, NY, United States
Runtime.si
Hiring
What they do:
Evaluation Infrastructure for Robotics (YC F26)
Quick facts:
HQ: San Francisco, CA, United States
Orca Aerospace
Hiring
What they do:
AI spacecraft operators that lives onboard the vehicle
Quick facts:
HQ: San Francisco, CA, United States
Simantic
Hiring
What they do:
Firmware simulation for AI agents
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Volaren Inc.
Hiring
What they do:
Turning Ideas into Trades. Volaren puts the hedge fund in the hands…
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HQ: New York, NY, United States
CONUS
Hiring
What they do:
The AI knowledge layer for medical devices
Quick facts:
HQ: Cologne, Germany
What they do:
Energy Superintelligence, AI that operates critical infrastructure
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The Subvocal Company
Hiring
What they do:
Talk to your computer without talking
Quick facts:
HQ: San Francisco, CA, United States
Rhem Labs
Hiring
What they do:
Home care technology for aging parents and their families
Quick facts:
HQ: San Francisco, CA, United States
Workers IO
Hiring
What they do:
Simulation Environments for Verifying Mission Critical Software
Quick facts:
HQ: San Francisco, CA, United States
Covera
Hiring
What they do:
AI-native OS for insurance brokers
Quick facts:
HQ: San Francisco, CA, United States
Vyra
Hiring
What they do:
Autonomous video editing for non-editors.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Humanoids to restock retail shelves & pick orders
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HQ: Switzerland
What they do:
Clinical intelligence layer for skilled nursing facilities.
Quick facts:
What they do:
Self-improving agents that automate tedious operational work
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HQ: San Francisco, CA, United States
What they do:
Artificial Intuition for marketing
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HQ: San Francisco, CA, United States
What they do:
Agents that run middle/back-office operations for Private Capital
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HQ: New York, NY, United States
What they do:
Context layer for enterprise AI surveying employees with voice agents
Quick facts:
HQ: San Francisco, CA, United States
What they do:
We tell sellers exactly when a company is ready to buy.
Quick facts:
HQ: San Francisco, CA, United States
Spine
Hiring
What they do:
We run benefits, payroll & compliance for startups, for free
Quick facts:
HQ: San Francisco, CA, United States
YC F26Early stage
What they do:
A live watermark inside AI voice that survives phone calls
Quick facts:
HQ: San Francisco, CA, United States
What they do:
AI-Native Investor Relations
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HQ: San Francisco, CA, United States
What they do:
Unmanned cargo airplanes
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HQ: Los Angeles, CA, United States
What they do:
Unifying Global Private Credit
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HQ: San Francisco, CA, United States
What they do:
Stripe for medical billing
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HQ: Austin, TX, United States
What they do:
Turn Your Taste Into Hires
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HQ: San Francisco, CA, United States
What they do:
Microgrids in a box built anywhere in days
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HQ: San Francisco, CA, United States
What they do:
Automating away manual admin for food distributors: texts to ERP
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HQ: San Francisco, CA, United States
What they do:
AI agents that run onboarding, adoption, and renewals
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HQ: San Francisco, CA, United States
What they do:
Robots for high skilled labor powering AI infrastructure
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HQ: San Francisco, CA, United States
What they do:
Real-time cloud inference for robotics.
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HQ: San Francisco, CA, United States
What they do:
Shire uses CCTV to run restaurants in real time.
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HQ: Myrtle Beach, SC, United States
What they do:
Enable robots to operate safely in the real world.
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HQ: San Francisco, CA, United States
What they do:
Super fast, unblockable browser infra for agents
Quick facts:
HQ: San Francisco, CA, United States
Questions and answers
How many startups are on this list?
There are 139 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
13 of them are hiring right now, including Ignition Benefits, Voyager, and Runtime.si.
Which of them have the largest teams?
By team size: Perit.AI (47 employees), Ignition Benefits (12 employees), and Invertix (8 employees).
Where are they based?
The biggest hubs are San Francisco (96), New York (7), and Los Angeles (4).