What they do:
AI teammates for logistics
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HQ: San Francisco, CA, United States
Y Combinator Winter 2026 Startups
This list has 198 startups and was last updated on Oct 15, 2026. 64 of them are hiring right now. Biggest hubs: San Francisco (133), New York (20), and London (8). Largest teams: Human Archive, Pocket, and General Legal. Latest round: Beyond Reach Labs raised $10M (Oct 6, 2026).
198 startupsPage 5 of 6
What they do:
Drop-in Direct Billing SDK for In-App Purchases
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HQ: San Diego, CA, United States
What they do:
Your startup's financial advisor
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What they do:
AI EMR for medspas & wellness clinics
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HQ: New York, NY, United States
What they do:
AI Verification for Insurance
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HQ: San Francisco, CA, United States
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Turning all software into agent-first APIs
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HQ: San Francisco, CA, United States
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Notion for AI chats
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HQ: San Francisco, CA, United States
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Enterprise post-training, monitoring, and continual learning platform
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HQ: San Francisco, CA, United States
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RL environments for robotics companies
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What they do:
AI models that learn from experience
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HQ: San Francisco, CA, United States
What they do:
AI SRE agent that triages, coordinates, and fixes production incidents
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HQ: San Francisco, CA, United States
What they do:
AI agents that automate B2B software implementation
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HQ: San Francisco, CA, United States
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Scaling formal verification to accelerate scientific discovery
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HQ: San Francisco, CA, United States
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Infrastructure for Autonomous Science
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HQ: San Francisco, CA, United States
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AI powered reconciliation for high-volume payments companies
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What they do:
Your software should build itself.
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What they do:
AI native radars for self-driving cars
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HQ: San Francisco, CA, United States
What they do:
Open-source Agentic Development Environment
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HQ: San Francisco, CA, United States
What they do:
The first exchange to trade on attention.
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HQ: New York, NY, United States
What they do:
Foundation models for 24/7 Earth Observation
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HQ: San Francisco, CA, United States
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Turn gatherings into lasting relationships.
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HQ: San Francisco, CA, United States
What they do:
AI account managers for consumer/self-serve apps
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HQ: New York, NY, United States
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Automating dexterous tasks in warehouses with AI-powered robots
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HQ: San Francisco, CA, United States
What they do:
Keeping contractors on the job site, not behind a desk.
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HQ: San Francisco, CA, United States
What they do:
Compression middleware that improves LLM outputs
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HQ: San Francisco, CA, United States
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Payments for Conversational Agents
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HQ: San Francisco, CA, United States
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Agentic Messenger
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What they do:
API for performance-based payroll
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HQ: San Francisco, CA, United States
What they do:
Adversarial AI that breaks your AI
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HQ: San Francisco, CA, United States
What they do:
Real-time interaction models for voice agents
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What they do:
AI operating system for advertising
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HQ: London, United Kingdom
What they do:
Stablecoin Global Bank Account
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HQ: San Francisco, CA, United States
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FDE as a platform for rebuilding critical operations in software.
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HQ: San Francisco, CA, United States
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AI Cost Management: Track and attribute AI spend across every provider
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HQ: San Francisco, CA, United States
What they do:
AI Video Production for Professionals
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HQ: San Francisco, CA, United States
What they do:
AI coworker for video editors to ship more video faster
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HQ: San Francisco, CA, United States