What they do:
Predictive Explorer and Driller for Critical Metal Deposits
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 9 of 40
Compose.ai
Hiring
What they do:
Cut your writing time by 40% with AI-powered autocomplete
Quick facts:
HQ: Carlsbad, CA, United States
What they do:
Saving OPS from SLOPS. Jestor builds internal systems that last.
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HQ: San Francisco, CA, United States
Sphere
Hiring
What they do:
AI-powered sales tax, VAT and GST compliance
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Voice AI platform purpose-built for contact centers.
Quick facts:
HQ: San Francisco, CA, United States
Chima
Hiring
What they do:
Building infrastructure tools to help large companies customize their…
Quick facts:
HQ: San Francisco, CA, United States
Ohm
Hiring
What they do:
Ohm helps engineering teams accelerate hardware development & testing.
Quick facts:
HQ: San Francisco, CA, United States
SID
Hiring
What they do:
AI research center for retrieval
Quick facts:
HQ: San Francisco, CA, United States
Navier AI
Hiring
What they do:
Agent-Driven Engineering
Quick facts:
HQ: San Francisco, CA, United States
Sonia
Hiring
What they do:
Validated mental health support in your pocket, anytime.
Quick facts:
HQ: San Francisco, CA, United States
Yondu
Hiring
What they do:
Robots to Automate Fulfillment
Quick facts:
HQ: Los Angeles, CA, United States
Saphira AI
Hiring
What they do:
The Enablement Layer for Physical AI
Quick facts:
HQ: San Francisco, CA, United States
Unbound
Hiring
What they do:
Use AI tools without fear of data leakage
Quick facts:
HQ: San Francisco, CA, United States
Willow
Hiring
What they do:
The voice interface replacing your keyboard
Quick facts:
HQ: San Francisco, CA, United States
Abundant
Hiring
What they do:
Agent simulation and RL for researchers
Quick facts:
HQ: San Francisco, CA, United States
Innate
Hiring
What they do:
Personal AI Robots
Quick facts:
HQ: San Francisco, CA, United States
Confident AI
Hiring
What they do:
The LLM Eval and Observability Platform for AI Quality
Quick facts:
HQ: San Francisco, CA, United States
Browser Use
Hiring
What they do:
Agents that use the browser.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Building the open source smart glasses operating system.
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HQ: San Francisco, CA, United States
Prox
Hiring
What they do:
AI product specialists for equipment manufacturers
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HQ: San Francisco, CA, United States
Luminal
Hiring
What they do:
Making AI run fast on any hardware.
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HQ: San Francisco, CA, United States
RamAIn
Hiring
What they do:
RamAIn - AI Employees with a computer to perform business tasks just…
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HQ: San Francisco, CA, United States
Callab AI
Hiring
What they do:
AI voice agents for on-prem telephony stack.
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HQ: San Francisco, CA, United States
Lab0
Hiring
What they do:
AI FDEs to make your B2B SaaS Go Live in Days, not Months
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Tolmo is the AI security platform that secures every layer of cloud…
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HQ: San Francisco, CA, United States
Runtime
Hiring
What they do:
The AI agent harness for payment teams
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HQ: San Francisco, CA, United States
Taskade
Hiring
What they do:
One prompt. One app. One living workspace for teams.
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HQ: San Francisco, CA, United States
Flair Labs
Hiring
What they do:
AI workforce for mortgage
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HQ: San Francisco, CA, United States
Corgea
Hiring
What they do:
Corgea finds, and fixes insecure code and packages autonomously.
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HQ: San Francisco, CA, United States
Surface Labs
Hiring
What they do:
Building the AI-powered marketing ops platform that turns website…
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HQ: San Francisco, CA, United States
Cair Health
Hiring
What they do:
AI Agents for Healthcare RCM
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HQ: San Francisco, CA, United States
Nowadays
Hiring
What they do:
AI-native platform for corporate meetings and events
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HQ: San Francisco, CA, United States
What they do:
Autonomous organizations without humans in the loop
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HQ: San Francisco, CA, United States
Openmart
Hiring
What they do:
Local business data intelligence platform
Quick facts:
HQ: San Francisco, CA, United States
Apten
Hiring
What they do:
Omnichannel AI agents that engage leads across SMS, voice, and email
Quick facts:
HQ: San Francisco, CA, United States
VideoGen
Hiring
What they do:
Create professional videos in minutes with AI, online or via API
Quick facts:
HQ: San Francisco, CA, United States