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 |
|---|---|---|---|---|
| DimeAI Instant E2E tests for your website | Developer toolsAutomated end-to-end testing | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| Kindamagical Create + share amazing product GIFs in minutes ⚡️ | Developer toolsAI-powered GIF creation for product demos | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| Moving Parts Delightful components for iOS. | Developer toolsiOS UI component library | Y CombinatorS21 | Inactive | checked 2026-08-23 |
| Scratch Data Analytics for builders. Record and query billions of datapoints with… | Developer toolsAnalytics database infrastructure for developers | Y CombinatorS21 | Inactive | checked 2026-08-17 |
| Squire.aiAI Never code alone. | Developer toolsAI code review and PR automation | Y CombinatorS21 | Inactive | checked 2026-08-23 |
| AXAR AIAI How great teams ship with AI | Developer toolsAI-assisted software development | Y CombinatorW21 | Inactive | - |
| Clay Figma for 3D design | Developer toolscollaborative 3D design platform | Y CombinatorW21 | Inactive | checked 2026-08-17 |
| CodeballAI AI-Powered Code Review | Developer toolsAI code review and bug detection | Y CombinatorW21 | Inactive | checked 2026-08-23 |
| DataheraldAI Embed NL-to-SQL into your Product 📈 | Developer toolsNL-to-SQL API for developers | Y CombinatorW21 | Inactive | checked 2026-08-17 |
| Lunatic Operating System for server-side apps | Developer toolsWebAssembly runtime for distributed apps | Y CombinatorW21 | Inactive | checked 2026-08-23 |
| Milk Video Create video testimonials with a link | Developer toolsvideo creation and clipping tools | Y CombinatorW21 | Inactive | checked 2026-08-17 |
| NimbusAI Nimbus reduces Datadog costs by more than 60% without Manual Effort | Developer toolsDatadog cost optimization automation | Y CombinatorW21 | Inactive | checked 2026-08-23 |
| Triplit The best database for app developers | Developer toolsDatabase for app developers | Y CombinatorW21 | Inactive | checked 2026-08-17 |