What they do:
AI for Human Writing
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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 32 of 40
What they do:
The simplest way to extract web data at scale
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HQ: San Francisco, CA, United States
What they do:
Turn product features into launch videos
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HQ: San Francisco, CA, United States
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Specialized agents for real work
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HQ: Los Angeles, CA, United States
What they do:
Fun with AI video
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HQ: San Francisco, CA, United States
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Autonomous Companies Run by AI Working While You Sleep.
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HQ: San Francisco, CA, United States
What they do:
Make your LLMs 3x faster.
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HQ: San Francisco, CA, United States
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Turning messy inboxes into ERP-Ready Data
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HQ: San Francisco, CA, United States
What they do:
Verify AI-generated code before you ship it
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HQ: San Francisco, CA, United States
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Empowering Physical Therapists to Go Independent
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HQ: San Francisco, CA, United States
What they do:
AI agents for global trade compliance
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HQ: San Francisco, CA, United States
What they do:
AI for the physical world
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HQ: Los Angeles, CA, United States
What they do:
Agentic AI Security and Governance
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HQ: San Francisco, CA, United States
What they do:
Units builds full-stack AI education infrastructure.
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HQ: San Francisco, CA, United States
What they do:
Your new AI-powered math tutor.
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HQ: San Francisco, CA, United States
What they do:
ChatGPT's memory feature in an open, portable format
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HQ: San Francisco, CA, United States
What they do:
The tiny computer built for voice AI.
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HQ: San Francisco, CA, United States
What they do:
Make your product AI native by tomorrow.
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HQ: San Francisco, CA, United States
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Accelerated Physics Kernels for Computational Engineering
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HQ: San Francisco, CA, United States
What they do:
Research lab solving non-verifiable work
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HQ: San Francisco, CA, United States
What they do:
AI-native, hardware procurement marketplace
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HQ: San Francisco, CA, United States
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We automate the inventory process in insurance
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HQ: San Francisco, CA, United States
What they do:
AI Data Analyst for fast-growing teams
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HQ: San Francisco, CA, United States
What they do:
The browser for agentic development
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HQ: San Francisco, CA, United States
What they do:
AI agent that manages manufacturing operations over text
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HQ: San Francisco, CA, United States
What they do:
Camera-free AI glasses. Your AI, out in the world.
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HQ: San Francisco, CA, United States
What they do:
Robots to maintain and assemble data centers
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HQ: San Francisco, CA, United States
What they do:
The Git forge for the next hundred billion commits
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HQ: San Francisco, CA, United States
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AI-native sales agents that run marketplaces
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HQ: San Francisco, CA, United States
What they do:
High performance coding agents
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HQ: San Francisco, CA, United States
What they do:
Managed Agents API
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HQ: San Francisco, CA, United States
What they do:
The open source tool gateway
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HQ: San Francisco, CA, United States
What they do:
AI that finds and fixes OS-level vulnerabilities across device fleets
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HQ: San Francisco, CA, United States
What they do:
Combining open-source AI models for better answers at lower cost
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HQ: San Francisco, CA, United States
What they do:
Monetize your agent's traces.
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HQ: San Francisco, CA, United States
What they do:
Catch wrong LLM answers before your customers do
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HQ: San Francisco, CA, United States