What they do:
Scheduling software for digital health clinics to do more with less.
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HQ: San Francisco, CA, United States
Top B2B Software Startups in California
This list has 2,349 startups and was last updated on Oct 15, 2026. 592 of them are hiring right now. Biggest hubs: San Francisco (2,110), Los Angeles (79), and San Diego (12). Largest teams: Stripe, Deel, and GrubMarket. Latest round: Modal raised $750M (Oct 14, 2026).
2,349 startupsPage 23 of 66
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:
The AI operating system for commodity operations
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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
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:
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:
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
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