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 |
|---|---|---|---|---|
| PicnicAIAI Intelligence to accelerate human health. | Healthcare and bioAI-powered patient care coordination and clinical research | Y CombinatorS14 | Active | checked 2026-08-23 |
| CareMessage Patient engagement for low-income populations | Healthcare and biopatient engagement for health equity | Y CombinatorW14 | Active | checked 2026-08-23 |
| Immunity Project The free HIV vaccine. | Healthcare and bioHIV vaccine development | Y CombinatorW14 | Active | 2026-08-23 |
| Noora Health Training patients and their families with health skills | Healthcare and bioPatient and caregiver education platform | Y CombinatorW14 | Active | checked 2026-08-23 |