Cotool alternatives
TL;DR: 12 companies doing similar work to Cotool in B2B, ranked by how closely they match what Cotool 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 Cotool. They are scored on how closely their own description overlaps with Cotool's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Cotool?
| 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 |
| PromptArmor | LLM Security and Compliance | Winter 2024 | — | Active |
| Dyneti Technologies | Reduce payment fraud | Winter 2019 | 3 | Active |
| Variance | AI Agents for Fraud Review and Investigations | Winter 2023 | 12 | Active |
| Palisade | AI that finds and fixes OS-level vulnerabilities across device fleets | Summer 2026 | 1 | Active |
| Unbound | Use AI tools without fear of data leakage | Summer 2024 | 7 | Active |
| Sublime Black | Automating Cyber Security Incident Response Through Artificial… | Winter 2019 | — | Inactive |
| BitPatrol | AI-powered code security | Spring 2025 | 1 | Acquired |
| Cofia | AI automations that implement themselves | Winter 2026 | 3 | Active |
| idemeum | AI-powered Application Control | Summer 2021 | 10 | Active |
Is Cotool still active?
Cotool 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 Cotool. They are then ranked on how closely their own description overlaps with Cotool's, so the closest matches come first rather than whoever happens to share a tag.