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 |
|---|---|---|---|---|
| Glow Energy Unlocking Virtual Power Plants for rental properties | Climate and energyVirtual Power Plants for rentals | Y CombinatorW22 | Acquired | checked 2026-08-17 |
| Pina Earth Unlocking carbon markets for European forest owners | Climate and energyForest carbon monitoring and certification | Y CombinatorW22 | Acquired | checked 2026-08-23 |
| Kapacity.io Reducing energy costs & emissions in buildings. | Climate and energybuilding energy load balancing | Y CombinatorS21 | Acquired | checked 2026-08-23 |
| inBalanceAI Electricity price forecasts for energy storage, ev charging, etc. | Climate and energyelectricity price forecasting for energy optimization | Y CombinatorW21 | Acquired | checked 2026-08-17 |
| PowerXAI AI powered sensors that save energy, water and emissions | Climate and energyAI energy optimization sensors | Y CombinatorW20 | Acquired | checked 2026-08-23 |
| Gaiascope SaaS that helps renewables & energy storage operate more profitably | Climate and energyrenewable energy grid forecasting | Y CombinatorS19 | Acquired | checked 2026-08-23 |
| Pachama Restoring nature to solve climate change. | Climate and energycarbon verification and forest marketplace | Y CombinatorW19 | Acquired | 2026-08-23 |
| Nebia Nebia is a breakthrough shower system, based on a premium experience,… | Climate and energywater-efficient home hardware | Y CombinatorS15 | Acquired | 2026-08-23 |
| Oolu Oolu is one of the fastest growing off-grid solar firms in West Africa | Climate and energyoff-grid solar distribution Africa | Y CombinatorS15 | Acquired | 2026-08-23 |
| Valor Water Analytics Valor Water Analytics delivers a SaaS platform to utilities to detect… | Climate and energywater utility analytics platform | Y CombinatorW15 | Acquired | 2026-08-23 |