Active companies
Companies their accelerator lists as active, or whose site is alive. 17,200 companies.
clusterConsumer 1,779B2B SaaS 1,691Fintech 1,477Healthcare and bio 1,404Vertical AI agents 1,377Robotics and physical world 1,231Commerce and marketplaces 1,090Climate and energy 789Other 612Developer tools 546Agent infrastructure 433Security and compliance 395Data for AI 377AI infra and compute 284Horizontal AI assistants 234Defense and space 216
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| FollowUpThen FollowUpThen is an email-based personal assistant that sends you… | Horizontal AI assistantsEmail-based task reminders and follow-ups | Y CombinatorS17 | Active | checked 2026-08-23 |
| SpeakAI A superhuman, AI-powered language tutor in your pocket | Horizontal AI assistantsAI language tutoring app | Y CombinatorW17 | Active | checked 2026-08-23 |