Cohorts of 2021
Companies whose accelerator cohort started in 2021. 1,685 companies.
clusterB2B SaaS 183Consumer 168Fintech 155Healthcare and bio 126Commerce and marketplaces 111Developer tools 68Climate and energy 66Vertical AI agents 66Robotics and physical world 59Security and compliance 34Other 28Data for AI 24Horizontal AI assistants 17Defense and space 15Agent infrastructure 13AI infra and compute 7
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Orbillion BioAI Tasty and scalable cultivated meat at price parity | Robotics and physical worldcultivated meat bioprocess | Y CombinatorW21 | Acquired | checked 2026-08-17 |
| Roin Technologies Building robots to automate commercial concrete construction. | Robotics and physical worldConcrete construction automation robots | Y CombinatorW21 | Acquired | checked 2026-08-17 |