Inactive companies
Companies marked inactive, or whose site is gone. 1,197 companies.
clusterConsumer 310B2B SaaS 161Commerce and marketplaces 107Developer tools 104Fintech 94Healthcare and bio 84Robotics and physical world 54Vertical AI agents 48Climate and energy 34Data for AI 30Security and compliance 27Horizontal AI assistants 19Other 16Agent infrastructure 15AI infra and compute 14Defense and space 4
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Exosonic, Inc. Developing supersonic UAVs as a pathway to quiet supersonic flight | Defense and spaceSupersonic military UAVs | Y CombinatorW20 | Inactive | checked 2026-08-23 |
| Lumineye X-ray Vision for First Responders | Defense and spacethrough-wall radar for first responders | Y CombinatorS19 | Inactive | checked 2026-08-17 |
| SpaceRyde The Rocket Network: Sustainable & On-Demand Delivery Anywhere in Space | Defense and spacesustainable space cargo and logistics | Y CombinatorW19 | Inactive | 2026-08-23 |
| Bagaveev Corporation Launch small satellites | Defense and spacesmall satellite launch vehicles | Y CombinatorW15 | Inactive | 2026-08-23 |