What they do:
Unmanned cargo airplanes
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HQ: Los Angeles, 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 28 of 66
What they do:
Unifying Global Private Credit
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HQ: San Francisco, CA, United States
What they do:
Turn Your Taste Into Hires
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HQ: San Francisco, CA, United States
What they do:
Automating away manual admin for food distributors: texts to ERP
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HQ: San Francisco, CA, United States
What they do:
AI agents that run onboarding, adoption, and renewals
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HQ: San Francisco, CA, United States
What they do:
Robots for high skilled labor powering AI infrastructure
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HQ: San Francisco, CA, United States
What they do:
Real-time cloud inference for robotics.
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HQ: San Francisco, CA, United States
What they do:
Enable robots to operate safely in the real world.
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HQ: San Francisco, CA, United States
What they do:
Super fast, unblockable browser infra for agents
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HQ: San Francisco, CA, United States
What they do:
Making the JVM faster
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HQ: San Francisco, CA, United States
What they do:
Analytics, built for the trades.
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HQ: San Francisco, CA, United States
What they do:
Easiest way to set up Zero Trust Access for your team
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HQ: San Francisco, CA, United States
What they do:
The AI growth marketer that turns SaaS signups into revenue
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HQ: San Francisco, CA, United States
What they do:
A search technology that actually finds what you’re looking for.
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HQ: San Francisco, CA, United States
What they do:
Deploy serverless without rewriting code
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HQ: San Francisco, CA, United States
What they do:
AI-first user research platform
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HQ: San Francisco, CA, United States
What they do:
Platform to automate manual back-office work
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HQ: San Francisco, CA, United States
What they do:
Detect every data leak into third-party GenAI tools
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HQ: San Francisco, CA, United States
What they do:
Find the best leads with custom intent signals
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HQ: San Francisco, CA, United States
What they do:
Your AI Partner for SAP Development
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HQ: San Francisco, CA, United States
What they do:
The AI platform for CRE investment teams
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HQ: San Francisco, CA, United States
What they do:
The Data Platform for Mission‑Critical Systems
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HQ: San Francisco, CA, United States
What they do:
The API for LLM tool use
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HQ: San Francisco, CA, United States
What they do:
All-in-one platform to create AI agents with your private knowledge
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HQ: San Francisco, CA, United States
What they do:
Build games at the speed of thought
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HQ: San Francisco, CA, United States
What they do:
Infrastructure for managing GPU clusters for training/serving.
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HQ: San Francisco, CA, United States
What they do:
RankAI grows your website on autopilot
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HQ: San Francisco, CA, United States
What they do:
Infuse knowledge into language models with just 10 samples
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HQ: San Francisco, CA, United States
What they do:
AI back office for food product quality teams
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HQ: Los Angeles, CA, United States
What they do:
AI Website platform that grows revenue automatically
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HQ: San Francisco, CA, United States
What they do:
Foundation Model for Chemical Manufacturing
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HQ: San Francisco, CA, United States
What they do:
Attunement turns fragmented behavioral health records into structured…
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HQ: San Francisco, CA, United States
What they do:
AI-Powered Engineering Productivity
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HQ: San Francisco, CA, United States
What they do:
Risotto auto-solves IT support requests using AI
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HQ: San Francisco, CA, United States
What they do:
Unlimited inference at $5 per stream
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HQ: San Francisco, CA, United States
What they do:
Batteries and solar for $0 upfront to help businesses save money
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HQ: San Francisco, CA, United States