Ambient.ai alternatives
TL;DR: 12 companies doing similar work to Ambient.ai in B2B, ranked by how closely they match what Ambient.ai 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 Ambient.ai. They are scored on how closely their own description overlaps with Ambient.ai's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Ambient.ai?
| 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 |
| Aedilic | Open-Source AI-generated image/deepfake detection | Winter 2024 | 2 | Inactive |
| Dyneti Technologies | Reduce payment fraud | Winter 2019 | 3 | Active |
| Observa | Catch accidental database exposures before the bad guys | Winter 2021 | 1 | Inactive |
| PromptArmor | LLM Security and Compliance | Winter 2024 | — | Active |
| Sublime Black | Automating Cyber Security Incident Response Through Artificial… | Winter 2019 | — | Inactive |
| Riverbank | Infrastructure Cartography | Summer 2025 | 1 | Active |
| SolidStage | Sysadmin as a service. We make deploying, configuring, monitoring,… | Winter 2012 | — | Inactive |
| Castle | Block bots & bad behavior | Winter 2016 | 20 | Active |
| Rimward | Solar farm security software for existing cameras | Summer 2023 | 1 | Active |
Is Ambient.ai still active?
Ambient.ai 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 Ambient.ai. They are then ranked on how closely their own description overlaps with Ambient.ai's, so the closest matches come first rather than whoever happens to share a tag.