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 |
|---|---|---|---|---|
| Gaiascope SaaS that helps renewables & energy storage operate more profitably | Climate and energyrenewable energy grid forecasting | Y CombinatorS19 | Acquired | checked 2026-08-23 |
| Pachama Restoring nature to solve climate change. | Climate and energycarbon verification and forest marketplace | Y CombinatorW19 | Acquired | 2026-08-23 |