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 |
|---|---|---|---|---|
| LanternAI Postgres vector database extension to build AI applications | Agent infrastructurePostgres vector database extension | Y CombinatorW24 | Inactive | checked 2026-08-23 |
| Tesseral The open source platform for managing identity in business software | Agent infrastructureIdentity and access management for AI agents | Y CombinatorW24 | Inactive | checked 2026-08-17 |