What they do:
Helping startups win gov contracts
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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 39 of 66
What they do:
AI agents for compliance at institutional trading firms
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HQ: San Francisco, CA, United States
What they do:
Multiplayer workspace for agents and humans
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HQ: San Francisco, CA, United States
What they do:
Distributed, hardware-agnostic AI inference
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HQ: San Francisco, CA, United States
What they do:
Self-optimizing inference cloud for faster, cheaper AI
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HQ: San Francisco, CA, United States
What they do:
Autonomous rovers to make the ‘Google Maps’ of underground utilities
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HQ: San Francisco, CA, United States
What they do:
AI tools for the chips your AI runs on
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HQ: San Francisco, CA, United States
What they do:
Next-generation agent operating system
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HQ: San Francisco, CA, United States
What they do:
The biggest crowdsourced benchmark for Computer-Use
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HQ: San Francisco, CA, United States
What they do:
AI that works for in-house legal teams
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HQ: San Francisco, CA, United States
What they do:
Open source AI gateway that turns your traffic into better models
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HQ: San Francisco, CA, United States
What they do:
Test agents in realistic worlds built from production usage
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HQ: San Francisco, CA, United States
What they do:
On-device AI that knows your entire life and does your work overnight.
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HQ: San Francisco, CA, United States
What they do:
AI users that test your app on every device and browser
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HQ: San Francisco, CA, United States
What they do:
World's Earliest Test for Alzheimer's Biomarkers
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HQ: San Francisco, CA, United States
What they do:
Lakehouse-as-a-Service (LaaS)
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HQ: San Francisco, CA, United States
What they do:
Agents running industrial enterprises from back office to shop floor
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HQ: San Francisco, CA, United States
What they do:
AI for the industries that power America.
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HQ: San Francisco, CA, United States
What they do:
Turning infrastructure demand into action
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HQ: San Francisco, CA, United States
What they do:
Intelligent Cloud for AI workloads
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HQ: San Francisco, CA, United States
What they do:
Give AI agents the right context at the right moment
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HQ: San Francisco, CA, United States
What they do:
Automate on-call at agent-scale.
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HQ: San Francisco, CA, United States
What they do:
Building in-house, frontier AI labs for companies
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HQ: San Francisco, CA, United States
What they do:
The AI desktop.
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HQ: San Francisco, CA, United States
What they do:
Fast inference for voice
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HQ: San Francisco, CA, United States
What they do:
The AI coding agent for C and C++
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HQ: San Francisco, CA, United States
What they do:
The infrastructure to run coding agents for your team
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HQ: San Francisco, CA, United States
What they do:
AI agents that run law firm operations.
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HQ: San Francisco, CA, United States
What they do:
The people data company for the agent era
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HQ: San Francisco, CA, United States
What they do:
API simulators for testing and training agents locally
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HQ: San Francisco, CA, United States
What they do:
A foundation model for engineering physics
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HQ: San Francisco, CA, United States
What they do:
Turn any website into an MCP for your agents, in minutes
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HQ: San Francisco, CA, United States
What they do:
Reconero helps police officers automate their workflows with AI
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HQ: San Francisco, CA, United States
What they do:
The AI decision engine for factories, warehouses and fleets
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HQ: San Francisco, CA, United States
What they do:
reducing agent reasoning into a graph search problem
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HQ: San Francisco, CA, United States
What they do:
Cursor for GTM
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HQ: San Francisco, CA, United States