Within
Hiring
What they do:
Company Brain for people and agents to work in harmony.
Quick facts:
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 3 of 66
What they do:
Protocol Labs makes internet protocols: IPFS, Filecoin, and more.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
On-demand prescription delivery.
Quick facts:
HQ: San Francisco, CA, United States
Gridware
Hiring
What they do:
Protecting the grid today, preparing the grid for tomorrow
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Conversational Voice and Multimodal AI built with Open Source
Quick facts:
HQ: San Francisco, CA, United States
What they do:
The all-in-one business phone for teams.
Quick facts:
HQ: San Francisco, CA, United States
Freshpaint
Hiring
What they do:
Customer data collection, safeguarding, & activation for healthcare
Quick facts:
HQ: San Francisco, CA, United States
Zuddl
Hiring
What they do:
Zuddl is a modular platform for events and webinars that helps event…
Quick facts:
HQ: San Francisco, CA, United States
Pylon
Hiring
What they do:
The Agentic Support Platform purpose-built for B2B.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Turning company knowledge into expert teams
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Secure Collaboration for Technical Teams
Quick facts:
HQ: San Francisco, CA, United States
Deepgram
Hiring
What they do:
Building foundational AI for speech transcription and understanding.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
The fastest path from submission to better decisions.
Quick facts:
HQ: San Francisco, CA, United States
Ashby
Hiring
What they do:
All-in-one recruiting platform that empowers hiring excellence in…
Quick facts:
HQ: San Francisco, CA, United States
Collectly
Hiring
What they do:
We help healthcare orgs collect more money faster
Quick facts:
HQ: San Francisco, CA, United States
Campfire
Hiring
What they do:
The AI Native ERP for the fastest growing companies.
Quick facts:
HQ: San Francisco, CA, United States
Curri
Hiring
What they do:
Construction & industrial logistics platform.
Quick facts:
HQ: Los Angeles, CA, United States
NanoNets
Hiring
What they do:
Automatic Data Extraction
Quick facts:
HQ: San Francisco, CA, United States
Community Phone Company
Hiring
What they do:
The phone that gives families peace of mind about aging parents
Quick facts:
HQ: San Francisco, CA, United States
Quartzy
Hiring
What they do:
Marketplace for life science supplies.
Quick facts:
HQ: San Francisco, CA, United States
Joy
Hiring
What they do:
The platform for all your life events.
Quick facts:
HQ: San Francisco, CA, United States
Instrumentl
Hiring
What they do:
Instrumentl automates grant discovery and management for nonprofits.
Quick facts:
HQ: San Francisco, CA, United States
Roboflow
Hiring
What they do:
🖼️ Give your software the sense of sight.
Quick facts:
HQ: San Francisco, CA, United States
Juicebox
Hiring
What they do:
AI Agents for Recruiting
Quick facts:
HQ: San Francisco, CA, United States
Prodigal
Hiring
What they do:
Lending Intelligence Software
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Embedded banking software platform and marketplace
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Cortex is the Internal Developer Portal eliminating “developer tax”…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Learning platform for job seekers with job applications automation
Quick facts:
HQ: San Francisco, CA, United States
Momentic
Hiring
What they do:
Mo, the AI QA engineer that bug-bashes your app before every release
Quick facts:
HQ: San Francisco, CA, United States
Funding:
$18.6M · Equity · Jan 2026
What they do:
Video infrastructure for developers
Quick facts:
HQ: San Francisco, CA, United States
Ridecell
Hiring
What they do:
World's Leading Fleet Intelligence Platform
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Shogun empowers brands to create exceptional ecommerce experience.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
A place for independent writing.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Context layer for production-grade AI agents
Quick facts:
HQ: San Francisco, CA, United States
Broccoli AI
Hiring
What they do:
AI-native operating system for home service businesses
Quick facts:
HQ: San Francisco, CA, United States
Promise
Hiring
What they do:
Better payment systems for governments and the communities they serve.
Quick facts:
HQ: San Francisco, CA, United States