What they do:
AI Affiliate Network For Financial Companies
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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 27 of 66
What they do:
AI tutor starting with maths and science
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HQ: San Francisco, CA, United States
What they do:
Cooking something sweet and salty!
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HQ: San Francisco, CA, United States
What they do:
Connect with hotel owners around the world.
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HQ: San Francisco, CA, United States
What they do:
Deep intelligence for private markets
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HQ: San Francisco, CA, United States
What they do:
The authentication framework for TypeScript
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HQ: San Francisco, CA, United States
What they do:
Product Native Models
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HQ: San Francisco, CA, United States
What they do:
Streamlining Data Capture to Report Creation for Heavy Industries
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HQ: San Francisco, CA, United States
What they do:
Real-world company data for frontier AI
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HQ: San Francisco, CA, United States
What they do:
We sell GPUs.
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HQ: San Francisco, CA, United States
What they do:
The Open-Source Alternative to Claude Managed Agents
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HQ: San Francisco, CA, United States
What they do:
Build an API to interact with any website.
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HQ: San Francisco, CA, United States
What they do:
Training Data for Recursive Self-Improvement
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HQ: San Francisco, CA, United States
What they do:
AI native real-estate appraisal firm
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HQ: San Francisco, CA, United States
What they do:
The full-stack AI financial audit firm
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HQ: San Francisco, CA, United States
What they do:
Operational Intelligence for Global Logistics
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HQ: San Francisco, CA, United States
What they do:
The AI sales agent for CPG brands
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HQ: San Francisco, CA, United States
What they do:
The cheapest, fastest inference cloud
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HQ: San Francisco, CA, United States
What they do:
AI Customer Support for Fortune 500-scale enterprises
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HQ: San Francisco, CA, United States
What they do:
/dev/fast is the AI-native code forge
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HQ: San Francisco, CA, United States
What they do:
The AI-native Recruiting OS
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HQ: San Francisco, CA, United States
What they do:
AI-native transformation for operations-heavy companies
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HQ: San Francisco, CA, United States
What they do:
Autonomous IT Delivery
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HQ: San Francisco, CA, United States
What they do:
Realtime AI for Sales Calls
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HQ: San Francisco, CA, United States
What they do:
Global upload acceleration for 1GB-100TB files.
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HQ: San Francisco, CA, United States
What they do:
Building secure polymorphic apps
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HQ: San Francisco, CA, United States
What they do:
The World's Largest Video Library
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HQ: San Francisco, CA, United States
What they do:
AI that turns any camera to an autonomous worker with real-time vision
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HQ: San Francisco, CA, United States
What they do:
Let agents talk to your customers
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HQ: San Francisco, CA, United States
What they do:
AI-Native Investor Relations
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HQ: San Francisco, CA, United States
What they do:
Company Brain.
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HQ: San Francisco, CA, United States
What they do:
Autonomous offensive security agents. The best defense is offense
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HQ: San Francisco, CA, United States
What they do:
Autonomous AI defense system for cyber attack
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HQ: San Francisco, CA, United States
What they do:
OpenRouter for Voice AI: one API, every call on the best speech model
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HQ: San Francisco, CA, United States
What they do:
AI-native procurement services for the physical economy
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HQ: San Francisco, CA, United States
What they do:
Least cost routing system to reduce 70%+ token spend
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HQ: San Francisco, CA, United States