What they do:
AI-Native Medical Billing Services
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HQ: New York, NY, 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 6 of 6
What they do:
The tiny computer built for voice AI.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
AI automated prior-auths for private medical practices
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HQ: Seattle, WA, United States
What they do:
US-Made Parts for Robots
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HQ: Austin, TX, United States
What they do:
Interpretability and reasoning infra for foundation models.
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HQ: San Francisco, CA, United States
What they do:
Research lab solving non-verifiable work
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HQ: San Francisco, CA, United States
What they do:
AI-native, hardware procurement marketplace
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HQ: San Francisco, CA, United States
What they do:
We automate the inventory process in insurance
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HQ: San Francisco, CA, United States
What they do:
Evals for frontier research agents
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HQ: San Francisco, CA, United States
What they do:
Reasoning and verification infra for AI
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HQ: New York, NY, United States
What they do:
Tankless Dive Gear - Breath Autonomy at Sea, Land & Space
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HQ: San Francisco, CA, United States
What they do:
Plan mode for complex features
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YC W26Early stage
What they do:
AI Document Workflows for Enterprises
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HQ: San Francisco, CA, United States
YC W26Early stage
What they do:
Social media content auto-generated with your existing data
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HQ: San Francisco, CA, United States
YC W26Early stage
Klaus AI
Shut down
What they do:
Fast and Safe OpenClaw on the cloud
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HQ: San Francisco, CA, United States
Kyten Technologies
Shut down
What they do:
Custom Aerospace-Grade Battery Packs
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HQ: Seattle, WA, United States
Q2Q
Shut down
What they do:
We help private equity teams find acquisition targets faster
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HQ: San Francisco, CA, United States
Mendral
Shut down
What they do:
AI DevOps Engineer
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HQ: San Francisco, CA, United States