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 |
|---|---|---|---|---|
| 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 |
| Reach Long range, wireless energy distribution that scales | Climate and energywireless power distribution networks | Y CombinatorS15 | Active | checked 2026-08-23 |
| SunFarmer Reliable and affordable solar energy in developing countries. | Climate and energysolar energy for developing markets | Y CombinatorS15 | Active | checked 2026-08-23 |
| Bright Sunrun for the developing world | Climate and energydistributed solar financing platform | Y CombinatorW15 | Active | checked 2026-08-24 |
| Industrial Microbes We design and build microbes to make chemicals greener at lower cost. | Climate and energysynthetic biology for green chemicals | Y CombinatorW15 | Active | checked 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 |