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 |
|---|---|---|---|---|
| EPIC AEROSPACE Last-mile delivery for satellites. | Defense and spacesatellite launch and delivery | Y CombinatorS19 | Active | checked 2026-08-23 |
| Ravn Ravn is building a heads-up display for soldiers. | Defense and spacetactical heads-up display for soldiers | Y CombinatorW19 | Active | checked 2026-08-23 |
| VotingWorks Non-profit building open-source voting machines for US elections. | Defense and spaceElection infrastructure and voting security | Y CombinatorW19 | Active | checked 2026-08-23 |