Xeol alternatives
TL;DR: 12 companies doing similar work to Xeol in B2B, ranked by how closely they match what Xeol 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 Xeol. They are scored on how closely their own description overlaps with Xeol's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Xeol?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Hiro | Agents that handle security work | Summer 2023 | 2 | Active |
| Dyneti Technologies | Reduce payment fraud | Winter 2019 | 3 | 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 |
| Variance | AI Agents for Fraud Review and Investigations | Winter 2023 | 12 | Active |
| Observa | Catch accidental database exposures before the bad guys | Winter 2021 | 1 | Inactive |
| Telivy | Automate your cyber security risk assessments | Summer 2021 | 6 | Acquired |
| Riot | Cybersecurity awareness for fast growing companies | Winter 2020 | 160 | Active |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
Is Xeol still active?
Xeol has been acquired, which often means pricing, roadmap or support changes. That is the usual reason people start looking at this list.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Xeol. They are then ranked on how closely their own description overlaps with Xeol's, so the closest matches come first rather than whoever happens to share a tag.