Cohorts of 2015
Companies whose accelerator cohort started in 2015. 757 companies.
clusterConsumer 145B2B SaaS 99Commerce and marketplaces 76Fintech 48Healthcare and bio 37Developer tools 36Robotics and physical world 27Other 24Security and compliance 20Climate and energy 15Vertical AI agents 11Data for AI 10AI infra and compute 8Agent infrastructure 4Horizontal AI assistants 4Defense and space 2
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Nebia Nebia is a breakthrough shower system, based on a premium experience,… | Climate and energywater-efficient home hardware | Y CombinatorS15 | Acquired | 2026-08-23 |
| Oolu Oolu is one of the fastest growing off-grid solar firms in West Africa | Climate and energyoff-grid solar distribution Africa | Y CombinatorS15 | Acquired | 2026-08-23 |
| Valor Water Analytics Valor Water Analytics delivers a SaaS platform to utilities to detect… | Climate and energywater utility analytics platform | Y CombinatorW15 | Acquired | 2026-08-23 |