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 |
|---|---|---|---|---|
| Atmos The entire homebuilding process, all online | Commerce and marketplacesOnline homebuilding marketplace | Y CombinatorS20 | Inactive | checked 2026-08-17 |
| In Stock Find any product, in stock nearby | Commerce and marketplaceslocal marketplace for retailers | Y CombinatorS20 | Inactive | checked 2026-08-24 |
| Nextstore Mobile optimized storefronts for Shopify | Commerce and marketplacesMobile storefronts for Shopify | Y CombinatorS20 | Inactive | checked 2026-08-24 |
| Oico B2B marketplace for construction material in Brazil. | Commerce and marketplacesconstruction materials B2B marketplace | Y CombinatorS20 | Inactive | checked 2026-08-17 |
| CARUPI CARUPI is the world's 1st managed P2P marketplace for used cars | Commerce and marketplacespeer-to-peer used car marketplace | Y CombinatorW20 | Inactive | checked 2026-08-23 |
| Glisten AIAI Glisten AI automatically categorizes and tags e-commerce product data. | Commerce and marketplacesProduct data categorization for e-commerce | Y CombinatorW20 | Inactive | checked 2026-08-17 |
| Global Belly Marketplace enabling social commerce for brands and content creators. | Commerce and marketplacessocial commerce marketplace for creators | Y CombinatorW20 | Inactive | checked 2026-08-23 |
| Homestead Homestead is a real estate development platform for homeowners | Commerce and marketplacesReal estate development marketplace | Y CombinatorW20 | Inactive | checked 2026-08-23 |
| SprintAIAI AI-led platform for inventory and fulfillment optimization | Commerce and marketplacesinventory and fulfillment optimization | Y CombinatorW20 | Inactive | checked 2026-08-17 |
| Valienta Helping Dropshippers in Colombia run the business and increase sales | Commerce and marketplacesdropshipping platform for Latin America | Y CombinatorW20 | Inactive | checked 2026-08-17 |