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 |
|---|---|---|---|---|
| OpennoteAI The notebook that thinks with you. | Horizontal AI assistantsAI-powered note-taking and writing assistant | Y CombinatorS25 | Acquired | checked 2026-08-23 |
| RemadeAI AI-native canvas for creative workflows. | Horizontal AI assistantsAI creative canvas for content | Y CombinatorS24 | Acquired | checked 2026-08-23 |
| ArcaneAI AI | Horizontal AI assistantsAI assistant for consumers | Y CombinatorW24 | Acquired | checked 2026-08-23 |
| SpeckAI AI Notetaker that automates all your admin work | Horizontal AI assistantsMeeting automation and note-taking | Y CombinatorW24 | Acquired | checked 2026-08-23 |
| AutotabAI AI agents reliable enough to do real work | Horizontal AI assistantsAI workflow automation agents | Y CombinatorS23 | Acquired | checked 2026-08-23 |
| FintoolAI Financial copilot for institutional investors | Horizontal AI assistantsFinancial analysis copilot for investors | Y CombinatorW23 | Acquired | 2026-08-23 |
| FrizAI AI Social Media Manager | Horizontal AI assistantsAI social media content management | Y CombinatorW21 | Acquired | checked 2026-08-17 |
| PingPong Video messaging app for remote teams. | Horizontal AI assistantsasync video collaboration platform | Y CombinatorW21 | Acquired | checked 2026-08-17 |
| Command AIAI AI-powered user assistance platform | Horizontal AI assistantsAI chat assistance for software platforms | Y CombinatorS20 | Acquired | 2026-08-23 |
| OmniAI Fast, up-to-date answers for Sales & Support | Horizontal AI assistantsAI knowledge assistant for enterprise teams | Y CombinatorS20 | Acquired | checked 2026-08-24 |
| TypedreamAI Build & launch your website in minutes with AI | Horizontal AI assistantsAI website builder | Y CombinatorW20 | Acquired | checked 2026-08-23 |
| KraftfulAI Copilot for product teams | Horizontal AI assistantsProduct feedback copilot | Y CombinatorS19 | Acquired | checked 2026-08-23 |
| Slapdash Work at the speed of thought | Horizontal AI assistantsAI-powered command bar and workflow automation | Y CombinatorW19 | Acquired | checked 2026-08-23 |
| TetraAI AI notetaker for phone calls | Horizontal AI assistantsAI call notetaking assistant | Y CombinatorW17 | Acquired | checked 2026-08-23 |
| Rapportive Add profiles to email. | Horizontal AI assistantsemail contact intelligence | Y CombinatorS10 | Acquired | 2026-08-23 |
| CueAI | Horizontal AI assistantsAI personal assistant for daily productivity | Y CombinatorW10 | Acquired | checked 2026-08-17 |
| Xobni | Horizontal AI assistantsEmail and contact intelligence assistant | Y CombinatorS06 | Acquired | checked 2026-08-17 |