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 |
|---|---|---|---|---|
| Exosonic, Inc. Developing supersonic UAVs as a pathway to quiet supersonic flight | Defense and spaceSupersonic military UAVs | Y CombinatorW20 | Inactive | checked 2026-08-23 |
| Lumineye X-ray Vision for First Responders | Defense and spacethrough-wall radar for first responders | Y CombinatorS19 | Inactive | checked 2026-08-17 |
| SpaceRyde The Rocket Network: Sustainable & On-Demand Delivery Anywhere in Space | Defense and spacesustainable space cargo and logistics | Y CombinatorW19 | Inactive | 2026-08-23 |
| Bagaveev Corporation Launch small satellites | Defense and spacesmall satellite launch vehicles | Y CombinatorW15 | Inactive | 2026-08-23 |