Cohorts of 2023
Companies whose accelerator cohort started in 2023. 2,105 companies.
clusterVertical AI agents 260Consumer 218B2B SaaS 198Fintech 148Healthcare and bio 118Commerce and marketplaces 114Climate and energy 112Developer tools 102Horizontal AI assistants 77Agent infrastructure 63Robotics and physical world 60Security and compliance 45Other 35Data for AI 35AI infra and compute 33Defense and space 26
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| GreenTallyAI Affordable carbon tracking solution for all businesses | Climate and energyAI-powered carbon accounting platform | Y CombinatorS23 | Inactive | checked 2026-08-23 |
| LeafpressAI AI Energy Management | Climate and energyAI utility energy management | Y CombinatorS23 | Inactive | 2026-08-23 |
| Line.Build Incentives and financing for energy efficiency upgrades | Climate and energyenergy efficiency financing for contractors | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| NectarAI Manage energy cost & usage with AI for facility & sustainability teams | Climate and energyAI energy management for buildings | Y CombinatorS23 | Active | checked 2026-08-23 |
| Ohmic Biosciences Genetically engineering plants for disease resistance. | Climate and energyagricultural biotech for crop resilience | Y CombinatorS23 | Active | checked 2026-08-23 |
| Orbio EarthAI Tracking methane emissions with satellites | Climate and energymethane emissions satellite monitoring | Y CombinatorS23 | Site unreachable | checked 2026-08-17 |
| AtmetoAI We develop ML that optimizes how batteries in the grid store energy | Climate and energyBattery storage optimization for grids | Y CombinatorW23 | Active | checked 2026-08-23 |
| Coperniq Workflow software for solar & energy contractors ☀️😎 | Climate and energyworkflow software for solar contractors | Y CombinatorW23 | Active | checked 2026-08-23 |
| OutSail Technologies Revolutionary, Modern Wing Sails | Climate and energyautonomous wind-powered marine vessels | Y CombinatorW23 | Inactive | checked 2026-08-17 |
| Overflux Streamline EV charger installations for real estate developers | Climate and energyEV charger installation automation | Y CombinatorW23 | Inactive | - |
| Stralis Aircraft Emission free hydrogen electric aircraft | Climate and energyhydrogen electric aircraft | Y CombinatorW23 | Active | checked 2026-08-23 |