What they do:
AI co-pilot for building plan review and building code compliance
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HQ: Salt Lake City, UT, United States
Y Combinator Winter 2025 Startups
This list has 166 startups and was last updated on Oct 15, 2026. 68 of them are hiring right now. Biggest hubs: San Francisco (103), New York (19), and London (6). Largest teams: Spott, AfterQuery, and Mundo AI. Latest round: Exin Therapeutics raised $2.16M (Feb 10, 2026).
166 startupsPage 5 of 5
What they do:
OpenRouter for Integrations
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HQ: New York, NY, United States
What they do:
Embedded Sandboxes for Agents
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HQ: San Francisco, CA, United States
What they do:
Agent teams for complex work
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HQ: San Francisco, CA, United States
What they do:
Execute the best sales playbook in industry
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HQ: San Francisco, CA, United States
What they do:
The fastest native app for agentic engineering.
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HQ: San Francisco, CA, United States
What they do:
Persistent email inbox, phone number and secret storage for agents
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HQ: London, United Kingdom
What they do:
infra for computer use agents
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What they do:
The AI Secretary for Email and Calendar.
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HQ: San Francisco, CA, United States
What they do:
Power-ready land for AI data centers
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HQ: New York, NY, United States
What they do:
AI agents for global trade compliance
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HQ: San Francisco, CA, United States
What they do:
Digital AI humans that model clothes for e-commerce brands.
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HQ: New York, NY, United States
What they do:
AI for the physical world
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HQ: Los Angeles, CA, United States
What they do:
AI Agents for Audit
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HQ: New York, NY, United States
YC W25Early stage
What they do:
Reimagining how Machines Learn
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HQ: San Francisco, CA, United States
YC W25Early stage
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HQ: San Francisco, CA, United States
Bud
Acquired
What they do:
Agent with a computer
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HQ: San Francisco, CA, United States
ZeroEntropy
Acquired
What they do:
Artificial Specialized Intelligence
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HQ: San Francisco, CA, United States
TensorPool
Acquired
What they do:
Vercel For GPUs
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HQ: San Francisco, CA, United States
Egress Health
Acquired
What they do:
Automated revenue cycle management, starting with dentists
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HQ: San Francisco, CA, United States
Altrina
Shut down
What they do:
The SOP Automation Platform
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HQ: San Francisco, CA, United States
Sublingual
Shut down
What they do:
Daily productivity tracker
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HQ: San Francisco, CA, United States