What they do:
We help lawyers start and scale AI-native law firms.
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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 31 of 66
What they do:
The AI-native contact center
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HQ: San Francisco, CA, United States
What they do:
The market behind AI hardware.
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HQ: San Francisco, CA, United States
What they do:
Reliable and safe data engineering and data science agents
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HQ: San Francisco, CA, United States
What they do:
Build everyday back-office agents on one live model of your books
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HQ: San Francisco, CA, United States
What they do:
Organizing company knowledge
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HQ: San Francisco, CA, United States
What they do:
Infrastructure for building and scaling AI-native businesses.
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HQ: San Francisco, CA, United States
What they do:
AI-native test infrastructure layer for hardware companies
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HQ: San Francisco, CA, United States
What they do:
The identity and communication layer for AI agents
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HQ: San Francisco, CA, United States
What they do:
Turns real businesses into robotics data vendors
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HQ: San Francisco, CA, United States
What they do:
We find flaws in RL environments and evals and help you fix them.
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HQ: San Francisco, CA, United States
What they do:
Internal industrial company data for frontier labs
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HQ: San Francisco, CA, United States
What they do:
RL post-training for science reasoning and performance engineering
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HQ: San Francisco, CA, United States
What they do:
Autoresearch as a service: we solve your hardest measurable problems
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HQ: San Francisco, CA, United States
What they do:
Evals for robots
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HQ: San Francisco, CA, United States
What they do:
Model Agnostic AI coworker in Slack
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HQ: San Francisco, CA, United States
What they do:
Wet lab infrastructure that turns AI experiments into training data.
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HQ: San Francisco, CA, United States
What they do:
See and control what your agents actually do
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HQ: San Francisco, CA, United States
What they do:
An AI-operated logistics company.
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HQ: San Francisco, CA, United States
What they do:
An AI bracelet that remembers your day and acts before you ask.
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HQ: San Francisco, CA, United States
What they do:
Motor cortex for physical AI
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HQ: San Francisco, CA, United States
What they do:
Continuous optimization for AI agents
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HQ: San Francisco, CA, United States
What they do:
The managed cloud for AI agents.
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HQ: San Francisco, CA, United States
What they do:
Simple third-party app patching and deployment for Windows.
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HQ: San Francisco, CA, United States
What they do:
Virtualmin is taking on the lack of innovation in the server admin programs, like Plesk, by making a more accessable version for pages managed by the…
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HQ: San Francisco, CA, United States
What they do:
The 401(k) that helps you grow
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HQ: San Francisco, CA, United States
What they do:
Online circuit simulator and electronic schematic editor.
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HQ: San Francisco, CA, United States
What they do:
Fastest, easiest, and most affordable way for small business owners…
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HQ: San Francisco, CA, United States
What they do:
The Self-Hosting Company
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HQ: San Francisco, CA, United States
What they do:
Easy button to use data for your daily operations
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HQ: San Francisco, CA, United States
What they do:
Subscriptions for neighborhood businesses
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HQ: San Francisco, CA, United States
What they do:
Marketplace for small business M&A
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HQ: San Francisco, CA, United States
What they do:
AI to track and analyze public policy
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HQ: San Francisco, CA, United States
What they do:
Conversational AI assistants using your knowledge
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HQ: San Francisco, CA, United States
What they do:
Build factory ready tech packs in minutes.
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HQ: Los Angeles, CA, United States
What they do:
Sequin is building AI Voice Agents to automate collections calls for…
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HQ: San Francisco, CA, United States