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 |
|---|---|---|---|---|
| Advano Advano is a battery technology company that improve the longevity of… | Climate and energybattery technology for renewable energy | Y CombinatorS17 | Site unreachable | checked 2026-08-23 |
| Airthium Decarbonized heat and power cheaper than fossil fuels | Climate and energyindustrial heat decarbonization | Y CombinatorS17 | Active | checked 2026-08-23 |
| Releaf Earth Turning food waste into Biochar to remove CO2 from the atmsophere | Climate and energybiochar carbon removal from waste | Y CombinatorS17 | Active, new domain | 2026-08-23 |
| Solugen Decarbonizing the chemicals industry. | Climate and energySustainable chemistry and biotech manufacturing | Y CombinatorW17 | Active | checked 2026-08-23 |