What they do:
Automating Data Entry for Clinical Trials
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HQ: San Francisco, CA, United States
Top AI Startups in California
This list has 1,434 startups and was last updated on Oct 16, 2026. 461 of them are hiring right now. Biggest hubs: San Francisco (1,360), Los Angeles (47), and San Diego (4). Largest teams: Cruise, Relativity Space, and Athelas. Latest round: Agriculture Scout AI raised $425K (Oct 13, 2026).
1,434 startupsPage 20 of 40
What they do:
QA agents that write tests 10x faster with zero maintenance
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HQ: San Francisco, CA, United States
What they do:
Enzyme design models.
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HQ: San Francisco, CA, United States
What they do:
Building a nervous system for the atmosphere
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HQ: San Francisco, CA, United States
What they do:
We build floating solar data centers
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HQ: San Francisco, CA, United States
What they do:
Executable healthcare contracts
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HQ: San Francisco, CA, United States
What they do:
AI Employees for Distributors
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HQ: San Francisco, CA, United States
What they do:
The Open Source Agentic Browser
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HQ: San Francisco, CA, United States
What they do:
AI Affiliate Network For Financial Companies
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HQ: San Francisco, CA, United States
What they do:
AI tutor starting with maths and science
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HQ: San Francisco, CA, United States
What they do:
Cooking something sweet and salty!
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HQ: San Francisco, CA, United States
What they do:
Foundation models to automate x-ray analysis for radiologists
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HQ: San Francisco, CA, United States
What they do:
Deep intelligence for private markets
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HQ: San Francisco, CA, United States
What they do:
Product Native Models
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HQ: San Francisco, CA, United States
What they do:
Streamlining Data Capture to Report Creation for Heavy Industries
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HQ: San Francisco, CA, United States
What they do:
Real-world company data for frontier AI
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HQ: San Francisco, CA, United States
What they do:
Your personal AI for language learning
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HQ: San Francisco, CA, United States
What they do:
We sell GPUs.
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HQ: San Francisco, CA, United States
What they do:
Applied research lab for hardware design
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HQ: San Francisco, CA, United States
What they do:
The Open-Source Alternative to Claude Managed Agents
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HQ: San Francisco, CA, United States
What they do:
The world's first AI-maximalist pharma company
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HQ: San Francisco, CA, United States
What they do:
AI powered brokerage reducing residential rental commissions in NYC…
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HQ: San Francisco, CA, United States
What they do:
A Foundation Model for Microbial Communities.
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HQ: San Francisco, CA, United States
What they do:
The full-stack AI financial audit firm
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HQ: San Francisco, CA, United States
What they do:
AI Voice callers for healthcare billing teams
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HQ: San Francisco, CA, United States
What they do:
Operational Intelligence for Global Logistics
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HQ: San Francisco, CA, United States
What they do:
The AI sales agent for CPG brands
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HQ: San Francisco, CA, United States
What they do:
AI benchmarks that measure general intelligence and inspire new ideas
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HQ: San Francisco, CA, United States
What they do:
The cheapest, fastest inference cloud
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HQ: San Francisco, CA, United States
What they do:
AI Customer Support for Fortune 500-scale enterprises
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HQ: San Francisco, CA, United States
What they do:
AI-native transformation for operations-heavy companies
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HQ: San Francisco, CA, United States
What they do:
Autonomous IT Delivery
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HQ: San Francisco, CA, United States
What they do:
The World's Largest Video Library
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HQ: San Francisco, CA, United States
What they do:
AI that turns any camera to an autonomous worker with real-time vision
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HQ: San Francisco, CA, United States
What they do:
Let agents talk to your customers
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HQ: San Francisco, CA, United States
What they do:
AI-Native Investor Relations
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HQ: San Francisco, CA, United States