Cinder alternatives
TL;DR: 12 companies doing similar work to Cinder in B2B, ranked by how closely they match what Cinder 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 Cinder. They are scored on how closely their own description overlaps with Cinder's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Cinder?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Hiro | Agents that handle security work | Summer 2023 | 2 | Active |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Dyneti Technologies | Reduce payment fraud | Winter 2019 | 3 | Active |
| Patchwork Security | Security patch notifications for servers. Build it, deploy it, and… | Winter 2016 | 2 | Inactive |
| PromptArmor | LLM Security and Compliance | Winter 2024 | — | Active |
| LaunchHear | LaunchHear was a startup attempting to make PR scale in the same way… | Winter 2010 | 2 | Inactive |
| Templarbit | Protecting applications from malicious activity | Summer 2017 | 11 | Acquired |
| Tumult | Tumult is building the next generation of apps for web design. Our… | Winter 2011 | 1 | Active |
| Observa | Catch accidental database exposures before the bad guys | Winter 2021 | 1 | Inactive |
| Riot | Cybersecurity awareness for fast growing companies | Winter 2020 | 160 | Active |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
Is Cinder still active?
Cinder is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Cinder. They are then ranked on how closely their own description overlaps with Cinder's, so the closest matches come first rather than whoever happens to share a tag.