Y Combinator companies
The Y Combinator portfolio as the radar sees it: synced daily, classified into clusters, checked for life and movement. 6,198 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 |
|---|---|---|---|---|
| NuCypher (aka Threshold Network) Network for decentralized threshold cryptography and end-to-end… | Agent infrastructureDecentralized threshold cryptography infrastructure | Y CombinatorS16 | Active | checked 2026-08-23 |
| Daily Conversational Voice and Multimodal AI built with Open Source | Agent infrastructureReal-time voice/video infrastructure for AI agents | Y CombinatorW16 | Active | checked 2026-08-23 |
| SendbirdAI The AI agent that doesn’t just support, it delights. | Agent infrastructureAI agent communication and orchestration platform | Y CombinatorW16 | Active | checked 2026-08-23 |