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 |
|---|---|---|---|---|
| Notebook Labs Decentralized, anonymous, and accountable identity on Web3. | Security and complianceWeb3 identity and zero-knowledge proofs | Y CombinatorS22 | Inactive | checked 2026-08-17 |