What they do:
The AI Assistant for Gmail
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HQ: San Francisco, CA, United States
Top Startups in San Francisco
This list has 3,173 startups and was last updated on Oct 15, 2026. 784 of them are hiring right now. Largest teams: DoorDash, Stripe, and Airbnb. Latest round: Modal raised $750M (Oct 14, 2026).
3,173 startupsPage 40 of 89
What they do:
AI powered debugging notebooks for incident response
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HQ: San Francisco, CA, United States
What they do:
Building AI systems that improve from experience.
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HQ: San Francisco, CA, United States
What they do:
Hire amazing engineers by seeing how they use AI
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HQ: San Francisco, CA, United States
What they do:
A foundation model for physics.
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HQ: San Francisco, CA, United States
What they do:
Robots that repair roads
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HQ: San Francisco, CA, United States
What they do:
Fast and Data-Driven Immigration Platform
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HQ: San Francisco, CA, United States
What they do:
Protect and Grow Long-tail Revenue
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HQ: San Francisco, CA, United States
What they do:
Test, monitor, and improve your voice agents
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HQ: San Francisco, CA, United States
What they do:
Continual Learning for Agents
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HQ: San Francisco, CA, United States
What they do:
We assemble PCBs in under 48 hours for quantities under 10
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HQ: San Francisco, CA, United States
What they do:
Open Source React.js Library for AI Chat
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HQ: San Francisco, CA, United States
What they do:
Custom models trained on your data
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HQ: San Francisco, CA, United States
What they do:
Creator marketing that scales like paid ads
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HQ: San Francisco, CA, United States
What they do:
AI tutor for each student.
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HQ: San Francisco, CA, United States
What they do:
We automate your entire product development lifecycle.
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HQ: San Francisco, CA, United States
What they do:
Open-source frontier models for knowledge work
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HQ: San Francisco, CA, United States
What they do:
Understand your users beyond the numbers
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HQ: San Francisco, CA, United States
What they do:
A personal EA in your iMessage
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HQ: San Francisco, CA, United States
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:
Self-Driving CI: fast AI-native GitHub Actions runners
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HQ: San Francisco, CA, United States
What they do:
AI Agents to win denied health insurance claims.
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HQ: San Francisco, CA, United States
What they do:
Build and ship native Swift apps with AI
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HQ: San Francisco, CA, United States
What they do:
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
What they do:
AI employees trained on your firm's workflows.
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HQ: San Francisco, CA, United States
What they do:
Production infrastructure on autopilot
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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:
Studio-Grade Design at Scale
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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:
AI outpatient care workforce
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HQ: San Francisco, CA, United States