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 |
|---|---|---|---|---|
| Canopi API to measure and eliminate carbon emissions | Climate and energyCarbon emissions measurement API | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| Heimdal Affordable and verified direct air carbon capture and storage | Climate and energydirect air carbon capture and storage | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| SolarMente Home electrification at $0 upfront cost | Climate and energyresidential solar financing | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| Moxion Power Co. Mobile Energy Storage Technology | Climate and energyMobile energy storage for last-mile electrification | Y CombinatorW21 | Inactive | 2026-08-23 |
| Noya Radically reducing capital costs and build time for direct air capture | Climate and energydirect air capture equipment retrofit | Y CombinatorW21 | Inactive | checked 2026-08-17 |
| Bosque Foods Whole muscle meat alternatives grown naturally from fungi | Climate and energysustainable food production | SOSVSOSV IndieBio NY 03 | Inactive | 2026-08-23 |