Observa alternatives
TL;DR: 12 companies doing similar work to Observa in B2B, ranked by how closely they match what Observa 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 Observa. They are scored on how closely their own description overlaps with Observa's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Observa?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Latent | Catch wrong LLM answers before your customers do | Fall 2026 | 1 | Active |
| Smyte | Smyte stops bad actors on social networks and marketplaces. | Winter 2015 | 11 | Acquired |
| Keyri | Secure fraud prevention and authentication platform for developers | Summer 2021 | 5 | Acquired |
| Ambient.ai | AI company transforming enterprise physical security to prevent… | Winter 2017 | 150 | Active |
| Anjuna | Anjuna enabled organizations to trust any infrastructure | Winter 2018 | 55 | Active |
| Castle | Block bots & bad behavior | Winter 2016 | 20 | Active |
| ZeroPath | Automatically find and fix your software vulnerabilities | Summer 2024 | 10 | Active |
| Verdun | The world's most advanced security monitoring service | Fall 2026 | 6 | Active |
| RASPIRE | Autonomous Runtime Security | Spring 2026 | 5 | Active |
| Verdict Machine | AI cybersecurity for financial institutions' digital assets | Summer 2026 | 4 | Active |
Is Observa still active?
Observa 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 Observa. They are then ranked on how closely their own description overlaps with Observa's, so the closest matches come first rather than whoever happens to share a tag.