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 |
|---|---|---|---|---|
| FirstQuadrantAI Sales AI that helps revenue teams move faster and close more deals. | Vertical AI agentsSales AI for revenue teams | Y CombinatorS21 | Inactive | checked 2026-08-23 |
| OneStopKitchenAI AI-Driven Tech & Space Optimization to Scale Restaurants | Vertical AI agentsAI-powered restaurant operations and scaling | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| OpkitAI AI phone calls for the US healthcare industry | Vertical AI agentsAI phone agents for healthcare practices | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| outloud.aiAI Building Gong.io for offline retail. | Vertical AI agentsAI conversation analysis for retail operations | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| PatternsAI Next-Gen Financial Analysis and Reporting with AI Agents | Vertical AI agentsAI financial analysis and reporting | Y CombinatorS21 | Inactive | checked 2026-08-17 |