Cohorts of 2023
Companies whose accelerator cohort started in 2023. 2,104 companies.
clusterConsumer 185Vertical AI agents 167B2B SaaS 147Fintech 115Healthcare and bio 86Developer tools 82Commerce and marketplaces 81Climate and energy 79Robotics and physical world 46Horizontal AI assistants 43Agent infrastructure 40Security and compliance 29Data for AI 26Other 24AI infra and compute 24Defense and space 20
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| COREAI Your AI butler that understands you really well and proactively acts… | Horizontal AI assistantspersonal AI assistant for productivity | Y CombinatorS23 | Active | checked 2026-08-23 |
| KhojAI AI for humans | Horizontal AI assistantsOpen source AI assistant for productivity | Y CombinatorS23 | Active | checked 2026-08-23 |
| LangdockAI The all-in-one AI platform for companies. | Horizontal AI assistantsenterprise AI chat and workflow automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| Obento HealthAI CRM Co-Pilot for Medtech Sales | Horizontal AI assistantsCRM copilot for medtech sales | Y CombinatorS23 | Site unreachable | checked 2026-08-24 |
| UpstreamAI The first inbox designed for humans and agents | Horizontal AI assistantsAI email agent assistant | Y CombinatorS23 | Active | checked 2026-08-23 |
| WebhoundAI Long-horizon research agents | Horizontal AI assistantsLong-horizon research automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| Alphawatch AIAI Discover new opportunities (jobs, deals, investors) | Horizontal AI assistantsAI-powered relationship intelligence platform | Y CombinatorW23 | Active | checked 2026-08-23 |
| BackdropAI AI coworkers for running projects and operations | Horizontal AI assistantsAI project and operations management | Y CombinatorW23 | Active | checked 2026-08-23 |
| EpsilonAI AI Search Engine for Academic Research | Horizontal AI assistantsAI search for academic research | Y CombinatorW23 | Active | checked 2026-08-23 |
| FrigadeAI AI-powered product assistance for modern software teams | Horizontal AI assistantsAI-powered in-app product assistant | Y CombinatorW23 | Active | checked 2026-08-23 |
| LinkGrepAI AI browser copilot for teams | Horizontal AI assistantsAI browser copilot for team collaboration | Y CombinatorW23 | Active | checked 2026-08-23 |
| TypeAI AI-native storytelling studio. | Horizontal AI assistantsAI storytelling assistant for creators | Y CombinatorW23 | Active | checked 2026-08-23 |
| UnifyAI AI teammates for everyone else 🤖 | Horizontal AI assistantsAI teammates for productivity tasks | Y CombinatorW23 | Active | checked 2026-08-23 |
| VaeroAI AI for Human Writing | Horizontal AI assistantsAI writing assistant for personalized style | Y CombinatorW23 | Active, new domain | 2026-08-23 |
| VellumAI Vellum: Your Personal Intelligence | Horizontal AI assistantsPersonal AI assistant with memory | Y CombinatorW23 | Active | checked 2026-08-23 |