Airtrain AI
Shut down
What they do:
No-code data curation for LLM fine-tuning and evaluation.
Quick facts:
HQ: San Francisco, CA, United States
Top B2B Software Startups in the United States
This list has 3,865 startups and was last updated on Oct 15, 2026. 827 of them are hiring right now. Biggest hubs: San Francisco (2,110), New York (555), and Los Angeles (79). Largest teams: Stripe, Deel, and GrubMarket. Latest round: Onebrief raised $151M (Oct 14, 2026).
3,865 startupsPage 100 of 108
Jasmine Energy
Shut down
What they do:
Claim solar incentives with AI
Quick facts:
HQ: Washington, DC, United States
Paperplane
Shut down
What they do:
Credit risk management platform for builders' merchants
Quick facts:
HQ: New York, NY, United States
Lynx
Shut down
What they do:
AI platform for investigating and resolving engineering incidents
Quick facts:
HQ: San Francisco, CA, United States
Structured Labs
Shut down
What they do:
The publishing layer for the agentic internet
Quick facts:
HQ: San Francisco, CA, United States
Tesseral
Shut down
What they do:
The open source platform for managing identity in business software
Quick facts:
HQ: San Francisco, CA, United States
PhoneSys
Shut down
What they do:
The Phone System for Sales Teams.
Quick facts:
HQ: San Francisco, CA, United States
FloydHub
Shut down
What they do:
ML Platform for developing, training and deploying ML models
Quick facts:
HQ: San Francisco, CA, United States
Sixty
Shut down
What they do:
On demand web app help
Quick facts:
HQ: San Francisco, CA, United States
Contrast
Shut down
What they do:
Developer Handoff - Reimagined for Storybook
Quick facts:
HQ: New York, NY, United States
Portal Entryways
Shut down
What they do:
Portal Entryways upgrades disabled-accessible doors so they can be…
Quick facts:
HQ: Provo, UT, United States
Capture
Shut down
What they do:
All your notes, tasks, and files in one super-fast workspace.
Quick facts:
HQ: New York, NY, United States
Lantern
Shut down
What they do:
User behavior monitoring for modern product teams
Quick facts:
HQ: San Francisco, CA, United States
LunaSec
Shut down
What they do:
An Open Source dependency security tool that is smarter than the rest
Quick facts:
HQ: Seattle, WA, United States
Clayboard
Shut down
What they do:
Create active, collaborative learning experiences
Quick facts:
HQ: New York, NY, United States
Visual One
Shut down
What they do:
AI for security cameras
Quick facts:
HQ: San Francisco, CA, United States
Reploy
Shut down
What they do:
Instant, shareable staging environments
Quick facts:
HQ: San Francisco, CA, United States
Intelligent
Shut down
What they do:
Demand Forecasting as a Service
Quick facts:
HQ: San Francisco, CA, United States
Forage Mail
Shut down
What they do:
AI that solves email overwhelm. Not another mail app.
Quick facts:
HQ: New York, NY, United States
Onsite Pro
Shut down
What they do:
Revolutionizing digital selling within HVAC
Quick facts:
HQ: San Francisco, CA, United States
Bifrost
Shut down
What they do:
Wills and Estate Management for Crypto
Quick facts:
HQ: San Francisco, CA, United States
Superpowered AI
Shut down
What they do:
API for Retrieval Augmented Generation
Quick facts:
HQ: Salt Lake City, UT, United States
Neptyne
Shut down
What they do:
The programmable spreadsheet.
Quick facts:
HQ: New York, NY, United States
Synch
Shut down
What they do:
Supercharging Sales
Quick facts:
HQ: New York, NY, United States
Smobi
Shut down
What they do:
Send texts your customers actually want over RCS
Quick facts:
HQ: New York, NY, United States
DGI Apparel
Shut down
What they do:
Expedia for ordering blank apparel
Quick facts:
HQ: New York, NY, United States
Tusk
Shut down
What they do:
AI agent that generates unit and integration tests
Quick facts:
HQ: San Francisco, CA, United States
camfer
Shut down
What they do:
Building the world’s first AI mechanical engineer.
Quick facts:
HQ: San Francisco, CA, United States
Lilac Labs
Shut down
What they do:
We automate the person taking orders at drive-thrus with a voice AI
Quick facts:
HQ: San Francisco, CA, United States
Altrina
Shut down
What they do:
The SOP Automation Platform
Quick facts:
HQ: San Francisco, CA, United States
Bannerman
Shut down
What they do:
Security Guard Company Marketplace
Quick facts:
HQ: San Francisco, CA, United States
Naytev
Shut down
What they do:
Naytev automates paid and organic social media management in one place
Quick facts:
HQ: San Francisco, CA, United States
Pakible
Shut down
What they do:
We make it insanely easy to design, price, and manufacture custom…
Quick facts:
HQ: San Francisco, CA, United States
User Hero
Shut down
What they do:
A hub for all your user research.
Quick facts:
HQ: San Francisco, CA, United States
numericcal, inc.
Shut down
What they do:
Distributed AI for Industrial Process Monitoring and Optimization.
Quick facts:
HQ: San Francisco, CA, United States
ShopWith
Shut down
What they do:
ShopWith is mobile QVC for GenZ.
Quick facts:
HQ: San Francisco, CA, United States