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 |
|---|---|---|---|---|
| Voyage Biomedical Using cooling to end brain damage during stroke. | Healthcare and biostroke treatment cooling technology | Y CombinatorS19 | Acquired | checked 2026-08-23 |
| Atomic Alchemy We produce cancer-curing materials used in nuclear medicine. | Healthcare and bioradiopharmaceutical production infrastructure | Y CombinatorW19 | Acquired | checked 2026-08-17 |