What they do:
The fastest way to sell online.
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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 32 of 89
What they do:
Zero-trust authentication, authorization, and auditing for AI agents
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HQ: San Francisco, CA, United States
What they do:
Expert STEM reasoning data for frontier AI labs.
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HQ: San Francisco, CA, United States
What they do:
AI for detecting patent infringements
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HQ: San Francisco, CA, United States
What they do:
Real World Environments and Data for AI
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HQ: San Francisco, CA, United States
What they do:
Your agents should never make the same mistake twice.
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HQ: San Francisco, CA, United States
Aurorin CAD
Hiring
What they do:
Claude code for Mechanical Engineers
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HQ: San Francisco, CA, United States
Limrun
Hiring
What they do:
Extend cloud sandboxes with iOS, Android and more
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HQ: San Francisco, CA, United States
What they do:
Collaborative AI app builder for teams
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HQ: San Francisco, CA, United States
What they do:
The agent-native serverless cloud
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HQ: San Francisco, CA, United States
Glen
Hiring
What they do:
Institutional Learning Layer for Every Agent in Your Company
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HQ: San Francisco, CA, United States
What they do:
We give AI agents realtime web context via API
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HQ: San Francisco, CA, United States
Bloomy
Hiring
What they do:
AI-native learning for every school
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HQ: San Francisco, CA, United States
What they do:
A research lab for one
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HQ: San Francisco, CA, United States
Denta
Hiring
What they do:
Fortune 500 Dental Benefits for Startups
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HQ: San Francisco, CA, United States
What they do:
Mass-producing and financing micro data center incredibly quickly.
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HQ: San Francisco, CA, United States
What they do:
The AI operating system for radiology networks
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HQ: San Francisco, CA, United States
What they do:
Self-improving agents that automate tedious operational work
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HQ: San Francisco, CA, United States
What they do:
Artificial Intuition for marketing
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HQ: San Francisco, CA, United States
Sift
Hiring
What they do:
The Leader in Digital Trust & Safety
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HQ: San Francisco, CA, United States
What they do:
Online VC
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HQ: San Francisco, CA, United States
What they do:
Markhor is a DTC company that works with craftsmen to make shoes and…
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HQ: San Francisco, CA, United States
What they do:
Information Security (Cyber Security), Compliance and Privacy (GDPR &…
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HQ: San Francisco, CA, United States
What they do:
Enabling T cell immunotherapy discovery, development and manufacturing
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HQ: San Francisco, CA, United States
What they do:
10by10 is a unique marketplace in the recruiting agency industry for…
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HQ: San Francisco, CA, United States
What they do:
iPhone-based driver monitoring for commercial fleets.
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HQ: San Francisco, CA, United States
What they do:
Travel planner for researching, organizing, and mapping your trip
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HQ: San Francisco, CA, United States
What they do:
Cosmic is an AI-powered headless CMS
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HQ: San Francisco, CA, United States
What they do:
Helping families plan and pay for funerals.
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HQ: San Francisco, CA, United States
Spice Data
Hiring
What they do:
Restaurant Data for the Enterprise
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HQ: San Francisco, CA, United States
YC S19Early stage
Deepnote
Hiring
What they do:
A better data science notebook.
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HQ: San Francisco, CA, United States
What they do:
Open source agent generation framework
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HQ: San Francisco, CA, United States
What they do:
Elevating mental health to be a part of your daily coffee ritual.
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HQ: San Francisco, CA, United States
What they do:
Genetic Medicine with Small Molecules
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HQ: San Francisco, CA, United States
What they do:
The lifestyle medicine layer for clinicians.
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HQ: San Francisco, CA, United States
What they do:
Autonomous street sweeping as a service by retro-fitting vehicles
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HQ: San Francisco, CA, United States