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 |
|---|---|---|---|---|
| Aquarium Learning We help ML teams improve their models by improving their datasets | Data for AIDataset quality and anomaly detection for ML | Y CombinatorS20 | Acquired | checked 2026-08-23 |
| Jitsu Open-Source CDP (acquired by Helium Ventures) | Data for AIevent data collection and warehouse integration | Y CombinatorS20 | Acquired | checked 2026-08-23 |
| Chaos Genius DataOps Observability Platform for Snowflake | Data for AISnowflake observability and cost optimization | Y CombinatorW20 | Acquired | 2026-08-23 |
| Metaplane Data observability for modern data teams | Data for AIData observability and quality monitoring | Y CombinatorW20 | Acquired | checked 2026-08-23 |