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 |
|---|---|---|---|---|
| Fig Fig adds visual apps, shortcuts, and autocomplete to your terminal. | Developer toolsterminal productivity and autocomplete | Y CombinatorS20 | Acquired | checked 2026-08-17 |
| Nestybox Enables Linux containers to act as super fast & efficient VMs | Developer toolscontainer runtime for VM-like workloads | Y CombinatorS20 | Acquired | checked 2026-08-17 |
| Reflect No-code test automation for web apps | Developer toolsNo-code test automation | Y CombinatorS20 | Acquired | checked 2026-08-23 |
| Strive School Training the next generation of software engineers in Europe 🇪🇺 | Developer toolsdeveloper education and bootcamp | Y CombinatorS20 | Acquired | checked 2026-08-17 |
| webapp.io Build webapps faster with 10x better CI/CD + preview envs | Developer toolsCI/CD and preview environments | Y CombinatorS20 | Acquired | checked 2026-08-23 |
| Hoss The developer experience platform | Developer toolsDeveloper experience platform for APIs | Y CombinatorW20 | Acquired | 2026-08-23 |
| Okay Dashboards and actionable insights for high-performing engineering… | Developer toolsEngineering team performance analytics | Y CombinatorW20 | Acquired | checked 2026-08-17 |