Cohorts of 2019
Companies whose accelerator cohort started in 2019. 1,218 companies.
clusterConsumer 150B2B SaaS 98Fintech 97Commerce and marketplaces 81Healthcare and bio 71Robotics and physical world 50Climate and energy 43Developer tools 42Vertical AI agents 32Security and compliance 26Data for AI 24Other 18Defense and space 13Horizontal AI assistants 13AI infra and compute 9Agent infrastructure 8
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Pippin / Rent the Backyard Autonomous homebuilding factory for the $1.7 trillion housing crisis. | Robotics and physical worldautonomous homebuilding factory | Y CombinatorS19 | Inactive | checked 2026-08-23 |
| Portal Entryways Portal Entryways upgrades disabled-accessible doors so they can be… | Robotics and physical worldAccessible building automation hardware | Y CombinatorW19 | Inactive | checked 2026-08-17 |