What they do:
Organizing company knowledge
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HQ: San Francisco, CA, United States
Top Startups in California
This list has 3,698 startups and was last updated on Oct 15, 2026. 827 of them are hiring right now. Biggest hubs: San Francisco (3,173), Los Angeles (197), and San Diego (39). Largest teams: DoorDash, Stripe, and Airbnb. Latest round: Renue Life Sciences raised $250K (Oct 14, 2026).
3,698 startupsPage 46 of 103
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
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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:
Turns real businesses into robotics data vendors
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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
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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:
RL post-training for science reasoning and performance engineering
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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:
The managed cloud for AI agents.
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HQ: San Francisco, CA, United States
What they do:
A tool for pharmacists to find funding for patients who are unable to…
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HQ: Milpitas, CA, United States
What they do:
Product recommendations.
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HQ: San Francisco, CA, United States
What they do:
Lingt provided a web-based platform for learning languages leveraging…
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HQ: San Francisco, CA, United States
What they do:
Simple third-party app patching and deployment for Windows.
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HQ: San Francisco, CA, United States
What they do:
Virtualmin is taking on the lack of innovation in the server admin programs, like Plesk, by making a more accessable version for pages managed by the…
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HQ: San Francisco, CA, United States
What they do:
The 401(k) that helps you grow
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HQ: San Francisco, CA, United States
What they do:
A publishing platform.
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HQ: San Francisco, CA, United States
What they do:
Online circuit simulator and electronic schematic editor.
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HQ: San Francisco, CA, United States
What they do:
Fastest, easiest, and most affordable way for small business owners…
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HQ: San Francisco, CA, United States
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The Human Utility seeks to eliminate water service disconnections for…
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HQ: San Francisco, CA, United States
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Shred Video builds automated video & photo systems that allow…
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HQ: San Francisco, CA, United States
What they do:
Tradewind translates scientific insight into innovative ways of…
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HQ: San Francisco, CA, United States
What they do:
VR space of immersive utilities
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HQ: San Francisco, CA, United States