ThinAir alternatives
TL;DR: 12 companies doing similar work to ThinAir in B2B, ranked by how closely they match what ThinAir actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with ThinAir. They are scored on how closely their own description overlaps with ThinAir's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to ThinAir?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Insoshi | — | Winter 2008 | — | Inactive |
| Fithub | — | Winter 2010 | — | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| Unbound | Use AI tools without fear of data leakage | Summer 2024 | 7 | Active |
| Sherpa Labs | Frontier Data | Winter 2025 | 5 | Active |
| Dyneti Technologies | Reduce payment fraud | Winter 2019 | 3 | Active |
| Hiro | Agents that handle security work | Summer 2023 | 2 | Active |
| PromptArmor | LLM Security and Compliance | Winter 2024 | — | Active |
| Palisade | AI that finds and fixes OS-level vulnerabilities across device fleets | Summer 2026 | 1 | Active |
| Sublime Black | Automating Cyber Security Incident Response Through Artificial… | Winter 2019 | — | Inactive |
| Riot | Cybersecurity awareness for fast growing companies | Winter 2020 | 160 | Active |
| idemeum | AI-powered Application Control | Summer 2021 | 10 | Active |
Is ThinAir still active?
ThinAir is no longer listed as active, so anyone still relying on it should plan a migration to one of the alternatives above.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with ThinAir. They are then ranked on how closely their own description overlaps with ThinAir's, so the closest matches come first rather than whoever happens to share a tag.