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Rein Security
Rein Security

Rein Security

Rein Security provides runtime security for enterprise AI agents, seeing and controlling agent actions at the execution layer without gateways.

Founded
2024
Overview
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Fundraising
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Library

Enterprise AI agents move money, touch personal data, and act on sensitive systems, while the same technology equips attackers probing at machine speed. Rein Security deploys as a sidecar at the AI-native runtime, where agents and AI applications actually execute, giving security teams full visibility into every agentic action and its business context.

Unlike AI gateways, cloud runtime tools, or kernel-level eBPF approaches, Rein observes and governs behavior where actions occur, stopping out-of-role actions before they execute without routing data through a proxy. That execution-layer position, together with keeping agentic data inside the organization, separates it from gateway- and posture-based alternatives.

Rein Security - Similar Companies

Terra Security logo

Terra Security

terra.security

Reconext logo

Reconext

reconext.com

Selfhack logo

Selfhack

selfhack.fi

Randal Systems logo

Randal Systems

randalsystems.com

Rematek logo

Rematek

rematek.com

Avast logo

Avast

avast.com

RepeatPack logo

RepeatPack

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Engini logo

Engini

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Rein Security - Quick Facts

Who are Rein Security's competitors?

Companies similar to Rein Security include Terra Security, Reconext, Selfhack and Randal Systems.

When was Rein Security founded?

Rein Security was founded in 2024.

When was Rein Security's last funding round?

Rein Security's most recent funding round was for $25M (USD) in October 2026.

How much has Rein Security raised to-date?

As of Oct 8, 2026, Rein Security has raised a total of $33M (USD).

Rein Security - Classification

Industry
  • Cybersecurity
Tags
  • Application Security