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 |
|---|---|---|---|---|
| Molagri Resistance free pesticides. | Climate and energysustainable agriculture biotech | Y CombinatorS26 | Active | checked 2026-08-23 |
| Rise Reforming We turn waste gases into valuable supply-secure chemicals | Climate and energybiogas-to-chemicals conversion | Y CombinatorS26 | Active | checked 2026-08-23 |
| Apollo Atomics, Inc. We make the most compact nuclear reactors | Climate and energycompact nuclear reactor hardware | Y CombinatorX26 | Active | checked 2026-08-23 |
| Condor EnergyAI Software for enterprise energy procurement. | Climate and energyAI energy procurement optimization | Y CombinatorW26 | Active | checked 2026-08-23 |
| Terranox AIAI The first AI-powered uranium discovery company | Climate and energyAI-powered uranium exploration | Y CombinatorW26 | Active | checked 2026-08-23 |
| Voxel Energy Energy independent data centers with solar and repurposed batteries. | Climate and energyrenewable energy for data centers | Y CombinatorW26 | Active | checked 2026-08-23 |