What they do:
Caveman cuts what AI agents cost without making them dumber.
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HQ: Amsterdam, Netherlands
Top B2B Software Startups
This list has 4,938 startups and was last updated on Oct 15, 2026. 1,026 of them are hiring right now. Biggest hubs: San Francisco (2,110), New York (555), and London (147). Largest teams: Stripe, Deel, and 99minutos. Latest round: Onebrief raised $151M (Oct 14, 2026).
Survival statistics →4,003 open roles →
4,938 startupsPage 79 of 138
What they do:
Always-on AI security engineer
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HQ: San Francisco, CA, United States
What they do:
Insurance Billing APIs for Healthcare Businesses
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HQ: New York, NY, United States
YC S12Growth stage
What they do:
Lawdingo provides virtual paralegal services to law firms.
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HQ: New York, NY, United States
YC W13Early stage
What they do:
Analytics stack for omnichannel retailers and brands
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HQ: San Francisco, CA, United States
YC W14Early stage
What they do:
We make Privacy Software for SMBs.
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HQ: San Francisco, CA, United States
What they do:
Marketplace & Software Revolutionizing Yard Care
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HQ: San Francisco, CA, United States
YC W16Early stage
What they do:
Protonet provides the easiest way for a small business to run its own…
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YC W16Early stage
What they do:
Detect Gunshots | Inform Law Enforcement | Empower First Responders
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HQ: New York, NY, United States
YC W16Early stage
What they do:
Analytics to improve how teams work and collaborate
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HQ: Seattle, WA, United States
YC W18Early stage
What they do:
We help retailers and restaurant chains manage repairs and…
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HQ: San Francisco, CA, United States
YC S18Early stage
What they do:
The Future of Supply Chain Data Tracking and Visibility
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HQ: London, United Kingdom
YC W19Growth stage
What they do:
Investing in innovation
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HQ: San Francisco, CA, United States
What they do:
24/7 emergency maintenance department for property managers and…
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HQ: Seattle, WA, United States
What they do:
The email API built for product teams
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HQ: United States
What they do:
Get up and running with large language models.
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HQ: San Francisco, CA, United States
YC W21Growth stage
What they do:
Online University for Tech Professionals
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HQ: San Francisco, CA, United States
What they do:
Easy accounting for e-commerce
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HQ: San Francisco, CA, United States
YC S21Early stage
What they do:
Storefronts on WhatsApp in Southeast Asia
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HQ: Kuala Lumpur, Malaysia
YC W22Early stage
What they do:
AI copilot for real-estate sales teams, powered by proprietary data
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HQ: Saint Petersburg, FL, United States
YC W22Early stage
What they do:
Find a home you can actually afford
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HQ: New York, NY, United States
YC W22Early stage
What they do:
Remote Shell Access in the Browser
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HQ: San Francisco, CA, United States
YC W23Early stage
What they do:
AI operating system for veterinary care
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HQ: San Francisco, CA, United States
YC W24Early stage
What they do:
Open-source agentic security automation platform
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HQ: New York, NY, United States
YC W24Early stage
What they do:
Generate ads. Iterate till perfect.
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HQ: San Francisco, CA, United States
YC W24Early stage
What they do:
Datasets and evals to push the frontier of visual intelligence.
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HQ: San Francisco, CA, United States
YC W24Early stage
What they do:
An AI agent for scientific research
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HQ: San Francisco, CA, United States
YC S24Early stage
What they do:
Random labs is building long running autonomous coding agents.
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HQ: San Francisco, CA, United States
YC S24Early stage
What they do:
Transform Images And Videos Into Immersive 3D With AI
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HQ: San Francisco, CA, United States
YC S24Early stage
What they do:
AI Agents for Audit
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HQ: New York, NY, United States
YC W25Early stage
What they do:
Reimagining how Machines Learn
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HQ: San Francisco, CA, United States
YC W25Early stage
What they do:
Accelerating world models.
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HQ: San Francisco, CA, United States
YC X25Early stage
What they do:
Consumer focus groups run by AI
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HQ: London, United Kingdom
YC S25Early stage
What they do:
Procurement Platform for Dental Offices
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YC S25Early stage
What they do:
Agentic Business Intelligence
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HQ: New York, NY, United States
YC S25Early stage
What they do:
Bizzy works 24/7 so you never miss a lead.
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HQ: New York, NY, United States
YC S25Early stage