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 |
|---|---|---|---|---|
| Arengu Build frictionless signup flows in minutes | Developer toolssignup flow builder for developers | Y CombinatorS21 | Acquired | checked 2026-08-17 |
| Satsuma Reliable blockchain indexing & querying for web3 engineering teams. | Developer toolsblockchain data indexing API | Y CombinatorS21 | Acquired | checked 2026-08-17 |
| Warrant Authorization and access control as a service. | Developer toolsauthorization infrastructure platform | Y CombinatorS21 | Acquired | checked 2026-08-23 |
| Dyte Real-time audio & video SDKs, ready to launch 🚀 | Developer toolsvideo streaming SDKs | Y CombinatorW21 | Acquired | checked 2026-08-23 |
| Emerge Tools Supercharge your mobile apps | Developer toolsMobile app performance and monitoring | Y CombinatorW21 | Acquired | checked 2026-08-23 |
| FunctionUp (FanPlay) A skill-tech platform that runs placement bootcamps | Developer toolsTechnical talent training and placement | Y CombinatorW21 | Acquired | checked 2026-08-23 |
| Pyroscope Open source continuous profiling software to debug performance issues | Developer toolsContinuous profiling and debugging | Y CombinatorW21 | Acquired | 2026-08-23 |
| Uiflow No-code platform for enterprise software companies | Developer toolsNo-code application development platform | Y CombinatorW21 | Acquired | checked 2026-08-23 |