What they do:
Frictionless payments via SMS
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HQ: San Francisco, CA, United States
Top Startups in California
This list has 3,713 startups and was last updated on Oct 16, 2026. 826 of them are hiring right now. Biggest hubs: San Francisco (3,181), Los Angeles (198), and San Diego (40). Largest teams: DoorDash, Stripe, and Airbnb. Latest round: hiyo raised $20.8M (Oct 15, 2026).
3,713 startupsPage 34 of 104
What they do:
Developing long-lasting drug formulations 50% faster
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HQ: Sacramento, CA, United States
What they do:
Scheduling software for digital health clinics to do more with less.
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HQ: San Francisco, CA, United States
What they do:
AI agents that automate AP, procurement, and finance
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HQ: San Francisco, CA, United States
What they do:
ai revenue engine for service businesses
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HQ: San Francisco, CA, United States
What they do:
Building the next Procore
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HQ: Santa Barbara, CA, United States
What they do:
Frontier models and agents you can learn from, audit, and steer.
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HQ: San Francisco, CA, United States
What they do:
Autonomously scaling environments
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HQ: San Francisco, CA, United States
Firebender
Hiring
What they do:
Most powerful coding agent for Android engineers
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HQ: San Francisco, CA, United States
What they do:
A social feed for interactive AI Creations
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HQ: San Francisco, CA, United States
What they do:
Nonprofit Financial Management
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HQ: San Francisco, CA, United States
What they do:
The AI operating system for commodity operations
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HQ: San Francisco, CA, United States
Haplotype Labs
Hiring
What they do:
Personalized prevention using genetics and AI
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HQ: San Francisco, CA, United States
What they do:
Elevated mRNA for transformative medicines.
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HQ: San Francisco, CA, United States
What they do:
We make robots that move boxes in warehouses
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HQ: San Francisco, CA, United States
What they do:
AI workforce management for healthcare
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HQ: San Francisco, CA, United States
What they do:
The Agent Analytics Platform
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HQ: Los Angeles, CA, United States
Consus
Hiring
What they do:
The fastest and cheapest way to use AI with ITAR or CUI data.
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HQ: San Francisco, CA, United States
What they do:
The memory computer for your digital life.
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HQ: San Francisco, CA, United States
What they do:
The personal AI agent for Korea.
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HQ: San Francisco, CA, United States
Autostep
Hiring
What they do:
The P&L for knowledge work
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HQ: San Francisco, CA, United States
What they do:
The data layer for scientific research
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HQ: San Francisco, CA, United States
What they do:
We help you get compliant while you focus on your business.
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HQ: San Francisco, CA, United States
What they do:
RNA intelligence for precision medicine
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HQ: San Francisco, CA, United States
What they do:
Building socially intelligent AI
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HQ: San Francisco, CA, United States
Panels
Hiring
What they do:
Audio Data for AI Labs
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HQ: San Francisco, CA, United States
What they do:
Hardware-Aware AI for Embedded Software
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HQ: San Francisco, CA, United States
What they do:
Done-for-you AI video ads and Meta campaign management
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HQ: San Francisco, CA, United States
What they do:
Your phone finally has someone to run it. Plug in Blue, just ask.
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HQ: San Francisco, CA, United States
What they do:
Tinder for jobs
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HQ: San Francisco, CA, United States
What they do:
Accelerate Product Iteration
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HQ: San Francisco, CA, United States
What they do:
The fastest way to sell online.
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HQ: San Francisco, CA, United States
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