OneStop
Hiring
What they do:
The local internet for NYC.
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HQ: New York, NY, United States
Y Combinator Summer 2025 Startups
This list has 166 startups and was last updated on Oct 16, 2026. 67 of them are hiring right now. Biggest hubs: San Francisco (114), New York (26), and London (3). Largest teams: Nox Metals, Flai, and GETASAP.
166 startupsPage 3 of 5
What they do:
IRL friendship app for women
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HQ: San Francisco, CA, United States
What they do:
Enterprise Voice Agents
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HQ: Pittsburgh, PA, United States
What they do:
RNA intelligence for precision medicine
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HQ: San Francisco, CA, United States
What they do:
Building socially intelligent AI
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HQ: San Francisco, CA, United States
Panels
Hiring
What they do:
Audio Data for AI Labs
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HQ: San Francisco, CA, United States
What they do:
Hardware-Aware AI for Embedded Software
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HQ: San Francisco, CA, United States
What they do:
Your always-on red team.
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HQ: New York, NY, United States
What they do:
Done-for-you AI video ads and Meta campaign management
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HQ: San Francisco, CA, United States
What they do:
Your phone finally has someone to run it. Plug in Blue, just ask.
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HQ: San Francisco, CA, United States
What they do:
Stormy runs the office so your crew can run the work.
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HQ: San Francisco, CA, United States
Adaptional
Hiring
What they do:
AI-powered insurance claims review
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HQ: San Francisco, CA, United States
YC S25Early stage
What they do:
AI advisor for retail investors
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HQ: San Francisco, CA, United States
What they do:
The E2E testing layer for AI-driven development
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HQ: San Francisco, CA, United States
What they do:
Agents that learn your company and work 24/7
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HQ: San Francisco, CA, United States
Proliferate
Hiring
What they do:
Do your life's work with agents
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HQ: San Francisco, CA, United States
YC S25Early stage
IronLedger.ai
Hiring
What they do:
AI-enabled Corporate Cards and Invoice Processing for Real Estate
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HQ: New York, NY, United States
YC S25Early stage
Relling
Hiring
What they do:
deploying the first billion robots for manufacturing
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HQ: San Francisco, CA, United States
YC S25Early stage
What they do:
AI agents for E2E testing across mobile & web
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HQ: San Francisco, CA, United States
What they do:
Airline customer service, fully automated.
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HQ: San Francisco, CA, United States
What they do:
The GD&T Analysis Platform for Engineering Drawings
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HQ: San Francisco, CA, United States
What they do:
Browser infra for AI agents: sessions, auth, proxies, payments
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HQ: San Francisco, CA, United States
Juxta
Hiring
What they do:
Building a GPS alternative 100x more powerful with no hardware needed.
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HQ: San Francisco, CA, United States
YC S25Early stage
What they do:
AI to run behavioral health programs better
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HQ: Chicago, IL, United States
What they do:
Deep intelligence for private markets
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HQ: San Francisco, CA, United States
What they do:
Your personal AI for language learning
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HQ: San Francisco, CA, United States
What they do:
International payroll, built for founders
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HQ: San Francisco, CA, United States
What they do:
We sell GPUs.
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HQ: San Francisco, CA, United States
What they do:
Applied research lab for hardware design
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HQ: San Francisco, CA, United States
What they do:
The Open-Source Alternative to Claude Managed Agents
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HQ: San Francisco, CA, United States
What they do:
The world's first AI-maximalist pharma company
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HQ: San Francisco, CA, United States
What they do:
The Cross-Border Neobank for the Middle East
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HQ: Orlando, FL, United States
What they do:
AI powered brokerage reducing residential rental commissions in NYC…
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HQ: San Francisco, CA, United States
What they do:
Continual Learning for Agents
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HQ: San Francisco, CA, United States
What they do:
Build and ship native Swift apps with AI
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HQ: San Francisco, CA, United States
What they do:
World's largest crowdsourced benchmark for AI-generated design
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HQ: San Francisco, CA, United States