What they do:
A personal EA in your iMessage
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HQ: San Francisco, CA, United States
Top AI & Data Startups in California
This list has 1,556 startups and was last updated on Oct 16, 2026. 481 of them are hiring right now. Biggest hubs: San Francisco (1,477), Los Angeles (51), and San Diego (5). Largest teams: Cruise, Relativity Space, and Fivetran. Latest round: Safi Analytics raised $22.4M (Oct 14, 2026).
1,556 startupsPage 24 of 44
What they do:
Specialized AI for Critical Industries
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HQ: San Francisco, CA, United States
What they do:
Automatically write and update internal docs with every code commit.
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HQ: San Francisco, CA, United States
What they do:
Play the latest games in your browser with no downloads
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HQ: Los Angeles, CA, United States
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Self-Driving CI: fast AI-native GitHub Actions runners
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HQ: San Francisco, CA, United States
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Build and ship native Swift apps with AI
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HQ: San Francisco, CA, United States
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World's largest crowdsourced benchmark for AI-generated design
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HQ: San Francisco, CA, United States
What they do:
Cursor for Email
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HQ: San Francisco, CA, United States
What they do:
Building medical school for AI Agents
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HQ: San Francisco, CA, United States
What they do:
AI content manager that grows your company's online presence
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HQ: San Francisco, CA, United States
What they do:
AI for the physical world
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HQ: San Francisco, CA, United States
What they do:
Truckload Planning at Machine Precision
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HQ: San Francisco, CA, United States
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AI-native real estate services firm
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HQ: Los Angeles, CA, United States
What they do:
AI employees trained on your firm's workflows.
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HQ: San Francisco, CA, United States
What they do:
Digital transformation for real economy businesses
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HQ: San Francisco, CA, United States
What they do:
TikTok for language learning
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HQ: San Francisco, CA, United States
What they do:
Continuous AI pentesting that finds and fixes vulnerabilities
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HQ: San Francisco, CA, United States
What they do:
AI clerks that automate your payables
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HQ: San Francisco, CA, United States
What they do:
Large-scale real-world robot & human data for embodied AI
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HQ: San Francisco, CA, United States
What they do:
Expressive conversational AI
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HQ: San Francisco, CA, United States
What they do:
Team chat to command all your company's coding agents
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HQ: San Francisco, CA, United States
What they do:
Insurance risk layer for physical AI
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HQ: San Francisco, CA, United States
What they do:
Underwrite borrowers around the world in minutes
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HQ: San Francisco, CA, United States
What they do:
UI building blocks for the agentic internet
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HQ: San Francisco, CA, United States
What they do:
AI production engineer for regulated industries
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HQ: San Francisco, CA, United States
What they do:
Work with agents that already know you
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HQ: San Francisco, CA, United States
What they do:
Evals, RL environments and training data for creative tasks
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HQ: San Francisco, CA, United States
What they do:
Intelligence for cultural institutions
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HQ: San Francisco, CA, United States
What they do:
Evals for humans
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HQ: San Francisco, CA, United States
What they do:
Your Capable Desktop AI Companion
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HQ: Irvine, CA, United States
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24/7 Personal Health & Longevity Companion
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HQ: San Francisco, CA, United States
What they do:
Platform + FDEs that rebuild enterprises agent-first
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HQ: San Francisco, CA, United States
What they do:
Marketplace for AI agents to hire humans.
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HQ: San Francisco, CA, United States
What they do:
Building the Data Infrastructure layer for Physical AI.
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HQ: San Francisco, CA, United States
What they do:
Extrapolative AI to unlock First-in-Class drugs
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HQ: San Francisco, CA, United States
What they do:
AI nutrition coach in your pocket
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HQ: San Francisco, CA, United States