AI firewalls and guardrails
Inline filters that inspect prompts, responses and tool calls of AI applications an organization builds.
20 vendors · alphabetical
- AIShieldAIShield provides security for AI/ML models and GenAI applications, addressing vulnerabilities like prompt injections, jailbreaks and data leaks.Ownership not established
- AliceAlice's WonderSuite gives security, product, and compliance teams red teaming and real-time guardrails.Ownership not established
- AurascapeAurascape secures employee AI use, helps teams build agents safely, and protects AI agents running in production with real-time visibility, policy enforcement, and data protection.Privately held
- CygridCygrid sells a platform that finds shadow AI, over-scoped tokens and leftover admin rights across SaaS, checks every action by humans, service accounts and AI agents, and secures actions by applying customer policy.Ownership not established
- Enkrypt AIEnkrypt AI sells an AI security platform with products for red teaming agents, enforcing runtime guardrails, turning policy into controls, auditing AI data, and scanning and gating MCP tool traffic.Privately held
- Fiddler AIFiddler AI sells the AI Control Plane, a platform for first-party and third-party agents from the creation layer to production.Privately held
- HiddenLayerHiddenLayer sells AI security that analyzes AI applications, models, and assets, identifies their risks, and protects them as teams build.Privately held
- Impart SecurityImpart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs.Privately held · primary category
- LakeraLakera sells AI Red Teaming, AI Agent Security and Workforce AI Security, which together help organizations secure employees, applications, and autonomous agents.Owned by Check Point Software Technologies since 2025 · primary category
- Lasso SecurityLasso Security sells an AI Security Platform that covers discovery, AI risk assessment and runtime protection.Privately held · primary category
- MindgardMindgard secures AI models, agents, and applications against exploitable threats.Privately held
- Noma SecurityNoma Security sells an Agent Security & Governance Platform for enterprise security teams.Privately held
- Operant AIOperant AI sells one platform covering Endpoints, Agents, MCPs, and AI applications.Privately held · primary category
- PangeaPangea sells an AI Security Platform that Pangea says helps security teams secure AI from cloud to code.Owned by CrowdStrike since 2025
- Pillar SecurityPillar Security sells one platform to discover, test, secure and govern every AI agent across an organization.Owned by Vanta
- Prompt SecurityPrompt Security offers protection for both employee use of AI tools and the apps an organization builds.Owned by SentinelOne since 2025 · primary category
- PromptfooPromptfoo builds open-source tools for secure, reliable AI applications.Owned by OpenAI
- SplxAISplxAI, which uses the name SPLX, sells scalable red teaming, real-time threat protection, and automated AI compliance and governance for AI systems.Owned by Zscaler since 2025
- StraikerStraiker lets security teams discover agents, MCP servers, and Skills, test how they can fail, and stop malicious behavior at runtime.Ownership not established
- WitnessAIWitnessAI sells an AI security and governance platform that brings humans and agents under one platform.Privately held