Theorem
Hiring
What they do:
Program verification so even your systems engineers can vibecode
Quick facts:
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 13 of 40
TraceRoot.AI
Hiring
What they do:
Open Source AI Agent Improvement Platform
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Robots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF.
Quick facts:
HQ: San Francisco, CA, United States
Novaflow
Hiring
What they do:
The AI data analyst for biology labs
Quick facts:
HQ: San Francisco, CA, United States
ProcIndex
Hiring
What they do:
AI-powered accounting automation for construction and manufacturing
Quick facts:
HQ: San Francisco, CA, United States
Floot
Hiring
What they do:
The app platform inside Claude and ChatGPT.
Quick facts:
HQ: San Francisco, CA, United States
Deeptrace
Hiring
What they do:
AI agents for on-call
Quick facts:
HQ: San Francisco, CA, United States
Darwin
Hiring
What they do:
Robots to build civilization
Quick facts:
HQ: San Francisco, CA, United States
Zarna
Hiring
What they do:
AI Associates for Middle-Market Private Equity
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Design your home instantly with AI
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HQ: San Francisco, CA, United States
Superset
Hiring
What they do:
Building self-improving software
Quick facts:
HQ: San Francisco, CA, United States
COACH
Hiring
What they do:
The AI Coach for in person sales reps.
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HQ: San Francisco, CA, United States
Netomi
Hiring
What they do:
Self-Driving Customer Care
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Early detection of Alzheimer's disease
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HQ: San Francisco, CA, United States
LFcarry
Hiring
What they do:
Marketplace for game boosting, carries and coaching
Quick facts:
HQ: Los Angeles, CA, United States
What they do:
AI workers that book, scribe, code, interpret, and answer clinicians
Quick facts:
HQ: San Francisco, CA, United States
Versable
Hiring
What they do:
AI powered product description enhancement for the auto parts industry
Quick facts:
HQ: San Francisco, CA, United States
MSPilot
Hiring
What they do:
Turn AI adoption into a recurring revenue line.
Quick facts:
HQ: San Francisco, CA, United States
Poly
Hiring
What they do:
Intelligent Personal Cloud Storage
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Relationship Coverage for Deal Teams
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HQ: San Francisco, CA, United States
Solum Health
Hiring
What they do:
AI Automation for Therapy Practices
Quick facts:
HQ: San Francisco, CA, United States
Firecrawl
Hiring
What they do:
Building the library for superintelligence.
Quick facts:
HQ: San Francisco, CA, United States
Scout
Hiring
What they do:
Scout is an AI news aggregator that turns your role, industry, and…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Your 24/7 AI Recruiter
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HQ: San Francisco, CA, United States
Quill Bills
Hiring
What they do:
AI-Powered Medical Billing
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HQ: San Francisco, CA, United States
Roame
Hiring
What they do:
Flight search engine using credit card points and miles
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Give your voice agents a face
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HQ: San Francisco, CA, United States
GloGlo
Hiring
What they do:
Curing and preventing type 1 diabetes
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Field-First AI for home services
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HQ: San Francisco, CA, United States
Reprompt
Hiring
What they do:
AI Agents for Location
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HQ: San Francisco, CA, United States
What they do:
Secure multiplayer workspace for teams building with agents
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HQ: San Francisco, CA, United States
Stardrift
Hiring
What they do:
AI travel planner
Quick facts:
HQ: San Francisco, CA, United States
What they do:
AI agent for Accounts Receivable
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HQ: San Francisco, CA, United States
cmux
Hiring
What they do:
Open source applied AI lab building next-gen devtools
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HQ: San Francisco, CA, United States
Hestus, Inc.
Hiring
What they do:
An AI-powered CAD software
Quick facts:
HQ: San Francisco, CA, United States
Refactor
Hiring
What they do:
Deploying secure and reliable AI agents across healthcare, retail,…
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HQ: San Francisco, CA, United States