What they do:
Build everyday back-office agents on one live model of your books
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HQ: San Francisco, CA, United States
Top AI Startups in California
This list has 1,429 startups and was last updated on Oct 15, 2026. 461 of them are hiring right now. Biggest hubs: San Francisco (1,355), Los Angeles (47), and San Diego (4). Largest teams: Cruise, Relativity Space, and Athelas. Latest round: Agriculture Scout AI raised $425K (Oct 13, 2026).
1,429 startupsPage 24 of 40
What they do:
Organizing company knowledge
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HQ: San Francisco, CA, United States
What they do:
Infrastructure for building and scaling AI-native businesses.
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HQ: San Francisco, CA, United States
What they do:
AI-native test infrastructure layer for hardware companies
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HQ: San Francisco, CA, United States
What they do:
The social trading app for stocks, memes, and perps
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HQ: San Francisco, CA, United States
What they do:
Oura Ring for Skin
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HQ: San Francisco, CA, United States
What they do:
The identity and communication layer for AI agents
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HQ: San Francisco, CA, United States
What they do:
We find flaws in RL environments and evals and help you fix them.
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HQ: San Francisco, CA, United States
What they do:
Florin is an AI-native insurance company that runs autonomously
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HQ: San Francisco, CA, United States
What they do:
Internal industrial company data for frontier labs
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HQ: San Francisco, CA, United States
What they do:
Autoresearch as a service: we solve your hardest measurable problems
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HQ: San Francisco, CA, United States
What they do:
Evals for robots
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HQ: San Francisco, CA, United States
What they do:
Model Agnostic AI coworker in Slack
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HQ: San Francisco, CA, United States
What they do:
Wet lab infrastructure that turns AI experiments into training data.
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HQ: San Francisco, CA, United States
What they do:
See and control what your agents actually do
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HQ: San Francisco, CA, United States
What they do:
An AI-operated logistics company.
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HQ: San Francisco, CA, United States
What they do:
Embodied Scientific Intelligence
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HQ: San Francisco, CA, United States
What they do:
An AI bracelet that remembers your day and acts before you ask.
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HQ: San Francisco, CA, United States
What they do:
Motor cortex for physical AI
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HQ: San Francisco, CA, United States
What they do:
Continuous optimization for AI agents
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HQ: San Francisco, CA, United States
What they do:
100% automated inspection for consumer electronics parts
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HQ: San Francisco, CA, United States
What they do:
Product recommendations.
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HQ: San Francisco, CA, United States
What they do:
Audio learning assistant for teachers and students.
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HQ: San Francisco, CA, United States
What they do:
Synkrino's AI, SATIS is a powerful, unbiased discovery system for…
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HQ: San Francisco, CA, United States
What they do:
Menten AI designs peptide and protein therapeutics using quantum…
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HQ: San Francisco, CA, United States
What they do:
AI to track and analyze public policy
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HQ: San Francisco, CA, United States
What they do:
Conversational AI assistants using your knowledge
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HQ: San Francisco, CA, United States
What they do:
Sequin is building AI Voice Agents to automate collections calls for…
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HQ: San Francisco, CA, United States
What they do:
AI Search for the Next Generation
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HQ: San Francisco, CA, United States
What they do:
AI agents to build B2B datasets
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HQ: San Francisco, CA, United States
What they do:
The best AI chat you've ever used
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HQ: San Francisco, CA, United States
What they do:
Turn everyday videos into movies.
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HQ: San Francisco, CA, United States
What they do:
AI-powered engineering productivity tools
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HQ: San Francisco, CA, United States
What they do:
Your autonomous motion designer that turns every feature into a…
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HQ: San Francisco, CA, United States
What they do:
AI Diagnosis of Heart Disease
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HQ: San Francisco, CA, United States
What they do:
type text, dream video
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HQ: San Francisco, CA, United States