Y Combinator companies
The Y Combinator portfolio as the radar sees it: synced daily, classified into clusters, checked for life and movement. 6,197 companies.
clusterVertical AI agents 898Consumer 821B2B SaaS 787Fintech 633Developer tools 515Healthcare and bio 477Commerce and marketplaces 433Agent infrastructure 350Robotics and physical world 314Data for AI 192Security and compliance 189Horizontal AI assistants 152AI infra and compute 151Climate and energy 123Defense and space 85Other 44
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| CentralAI Payroll, benefits, state compliance & other bullsh*t for startups | Vertical AI agentsAI payroll and compliance for startups | Y CombinatorS24 | Acquired | checked 2026-08-23 |
| Hey ReviaAI Voice AI to automate complex phone calls for healthcare providers | Vertical AI agentsVoice AI for healthcare administrative calls | Y CombinatorS24 | Acquired | 2026-08-23 |
| MidshipAI AI for SOX testing | Vertical AI agentsAI audit agents for SOX compliance | Y CombinatorS24 | Acquired | 2026-08-23 |
| LumetricAI The AI Analyst For Deal Teams | Vertical AI agentsAI analyst for deal teams | Y CombinatorW24 | Acquired | checked 2026-08-23 |
| StarJarAI Starjar automates inbound document processing workflows for hospitals | Vertical AI agentsDocument processing automation for hospitals | Y CombinatorW24 | Acquired | checked 2026-08-17 |