Unbound alternatives
TL;DR: 12 companies doing similar work to Unbound in B2B, ranked by how closely they match what Unbound 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 Unbound. They are scored on how closely their own description overlaps with Unbound's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Unbound?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Malloc Inc | AI-driven mobile cybersecurity | Summer 2021 | 10 | Active |
| Repacket | Employee security done for you. | Winter 2023 | 4 | Active |
| Candor | Protect your data and stop insider risk | Winter 2025 | 3 | Active |
| Bunkyr | Zero-Knowledge security without seed phrases or backup codes | Winter 2022 | 3 | Active |
| ContextFort | Visibility and Controls for Browser Agents | Summer 2025 | 2 | Active |
| Agentic Fabriq | The control plane for AI agents. | Winter 2026 | 2 | Active |
| Blyss | End-to-end encrypted AI. | Winter 2023 | 2 | Inactive |
| Sift | The Leader in Digital Trust & Safety | Summer 2011 | — | Active |
| TRM Labs | TRM is building a safer world for billions of people. | Summer 2019 | 400 | Active |
| Sqreen | Sqreen is the application security platform for the modern enterprise | Winter 2018 | 120 | Acquired |
| Optery | Opt out software that removes your private info from the internet | Winter 2022 | 55 | Acquired |
| AeroFS | Secure Enterprise Collaboration. | Summer 2010 | 40 | Acquired |
Is Unbound still active?
Unbound 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 Unbound. They are then ranked on how closely their own description overlaps with Unbound's, so the closest matches come first rather than whoever happens to share a tag.