
What they do:
Building intellectually curious AI
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HQ: San Francisco, CA, United States
This list has 49 startups and was last updated on Oct 15, 2026. 15 of them are hiring right now. Biggest hubs: San Francisco (29), Los Angeles (2), and London (2). Largest teams: Akido Labs, Focal Systems, and Mashgin. Latest round: Numerion Labs raised $19.8M (Mar 19, 2026).

What they do:
Building intellectually curious AI
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HQ: San Francisco, CA, United States

What they do:
Waymo for excavators
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HQ: San Francisco, CA, United States

What they do:
Enterprise post-training, monitoring, and continual learning platform
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HQ: San Francisco, CA, United States

What they do:
A factory for small and specialized video reasoning models
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What they do:
We help ML teams improve their models by improving their datasets
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HQ: San Francisco, CA, United States

What they do:
Build better computer vision models by building better datasets
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HQ: Brussels, Belgium

What they do:
Turn your data into a deployed computer vision model
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HQ: San Francisco, CA, United States

What they do:
Wearables and AI to predict and prevent sepsis outside the hospital
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HQ: San Francisco, CA, United States

What they do:
Accelerating machine learning through software
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HQ: Portland, OR, United States

What they do:
Hearing aids that work in noisy places, like restaurants, using ML.
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HQ: San Francisco, CA, United States

What they do:
Breaking new ground in online eyecare.
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HQ: San Francisco, CA, United States

What they do:
Mobile keyboards + emoji + deep learning. We make Dango. We also made…
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What they do:
Translate your experimental scripts into production ML services
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HQ: Seattle, WA, United States