Y Combinator companies
The Y Combinator portfolio as the radar sees it: synced daily, classified into clusters, checked for life and movement. 6,198 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 152Climate and energy 123Defense and space 85Other 44
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Modular Science We're making it easier to do sustainable farming. | Climate and energysustainable agriculture technology | Y CombinatorS17 | Inactive | checked 2026-08-17 |
| Sunfolding Sunfolding builds next generation infrastructure for solar farms. By… | Climate and energysolar tracking hardware infrastructure | Y CombinatorS17 | Inactive | 2026-08-23 |
| WATERFX The world's first 100% sustainable water provider (aka alternative… | Climate and energysolar-powered desalination infrastructure | Y CombinatorS17 | Inactive | checked 2026-08-23 |