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 |
|---|---|---|---|---|
| Array Labs We're building satellites to create a real-time 3D map of the world. | Defense and spacesatellite imaging and earth observation | Y CombinatorS22 | Active | checked 2026-08-23 |
| Quindar Datadog for Space | Defense and spacesatellite constellation management SaaS | Y CombinatorS22 | Active | checked 2026-08-23 |
| Velontra Hypersonic space plane that can take-off from any location and weather | Defense and spacehypersonic space launch vehicles | Y CombinatorS22 | Active | checked 2026-08-23 |
| AstroForge We Mine Asteroids | Defense and spaceasteroid mining and space resources | Y CombinatorW22 | Active, new domain | 2026-08-23 |
| Hubble Network Bluetooth to Space | Defense and spacesatellite connectivity infrastructure | Y CombinatorW22 | Active | checked 2026-08-23 |
| Palitronica Inc Detect cyber attacks on critical physical infrastructure | Defense and spaceCritical infrastructure cyber defense | Y CombinatorW22 | Active | checked 2026-08-24 |
| RowndAI Fully autonomous defense solutions for the global edge. | Defense and spaceautonomous defense drones | Y CombinatorW22 | Active | checked 2026-08-23 |
| Wyvern High-res hyperspectral pictures of Earth from space | Defense and spaceHigh-resolution satellite imagery | Y CombinatorW22 | Active | checked 2026-08-23 |