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 |
|---|---|---|---|---|
| Tumult Tumult is building the next generation of apps for web design. Our… | Developer toolsweb design and prototyping tools | Y CombinatorW11 | Active | checked 2026-08-23 |
| Brushes iPad drawing software. | Developer toolsiPad drawing and design | Y CombinatorS10 | Inactive | checked 2026-08-23 |
| Docker Software development platform. | Developer toolscontainer platform and DevOps | Y CombinatorS10 | Active | checked 2026-08-23 |
| GazeHawk Eyetracking using webcams. | Developer toolseye tracking for UX research | Y CombinatorS10 | Acquired | checked 2026-08-23 |
| Recurse Center The retreat where curious programmers recharge and grow | Developer toolsProgramming bootcamp and recruiting | Y CombinatorS10 | Active | checked 2026-08-23 |
| Crocodoc Embed PDFs, PowerPoints, and other documents into web and mobile apps | Developer toolsdocument viewing and embedding SDK | Y CombinatorW10 | Acquired | checked 2026-08-17 |
| NudgePad Online IDE. We joined Microsoft in 2014. | Developer toolsBrowser-based IDE for rapid prototyping | Y CombinatorS09 | Acquired | 2026-08-23 |
| Treehouse | Developer toolsonline coding education platform | Y CombinatorS08 | Inactive | checked 2026-08-23 |
| 280 North | Developer toolsWeb application framework and IDE | Y CombinatorW08 | Acquired | 2026-08-23 |
| Heroku Enabling developers to build and run applications in the cloud. | Developer toolsCloud application platform and deployment | Y CombinatorW08 | Acquired | checked 2026-08-23 |
| Ninite Simple third-party app patching and deployment for Windows. | Developer toolsWindows app distribution and patching | Y CombinatorW08 | Active | checked 2026-08-23 |
| Trigger Better PhoneGap. | Developer toolsMobile app framework for web developers | Y CombinatorW08 | Inactive | checked 2026-08-17 |
| Appjet | Developer toolsWeb app development platform | Y CombinatorS07 | Acquired | checked 2026-08-17 |
| Memamp | Developer toolsdesktop search and indexing | Y CombinatorS05 | Inactive | checked 2026-08-23 |
| Parakey Wayne Long | 706-366-8000 | Columbus GA Homes for Sale | Developer toolsWeb-based OS platform | Y CombinatorS05 | Acquired | checked 2026-08-23 |