Guardrails companies, products & suppliers

Runtime policy enforcement on inputs and outputs of AI systems. Jobs: allow/deny policies; pii blocking; topic filters.

What is Guardrails?

Runtime policy enforcement on inputs and outputs of AI systems. Jobs: allow/deny policies; pii blocking; topic filters.

What problems does it solve?

Applications need a policy layer that is not 'the model will behave'.

Typical business use cases

  • Allow/deny policies
  • PII blocking
  • Topic filters

Important capabilities

  • Policy engine
  • Runtime hooks
  • Override

What buyers should evaluate

  • Where enforcement runs
  • Who edits policy
  • Fail mode

Risks and governance considerations

Guardrails that log every blocked prompt including the secrets they caught.

Procurement checklist

  • Enforcement location
  • Log contents
  • Policy SoD

Relevant AI Trustmark assurance

AI Trustmark independent findings appear only when an assessment or certificate exists. Category membership does not imply verification.

Methodology · How verification works

Companies and providers

Claimed suppliers appear first so buyers can start with listings the company has taken ownership of. Payment does not buy this order.

  • Amazon Web Services

    Amazon Web Services is Amazon's cloud division selling compute, storage, Bedrock model hosting and related AI infrastructure. Public pages cover regional cloud services for builder

  • Arthur

    One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle. Arthur publishes Arthur AI Platform, Arthur Engi

  • Enkrypt AI

    Achieve AI security and safety with a platform that detects threats, removes vulnerabilities, and monitors performance for continuous insights. Enkrypt AI publishes Enkrypt AI Data

  • Fiddler AI

    Gain visibility, context, and control through evaluation, monitoring, enforcement, governance, and cost efficiency. Fiddler AI publishes Fiddler Guardrails, Fiddler AI Observabilit

  • Giskard

    Secure AI agents with Giskard’s continuous AI red teaming. Detect vulnerabilities, improve LLM security, and safeguard your AI systems. Giskard publishes Giskard Guards, Giskard Hu

  • Guardrails AI

    Guardrails AI publishes Guardrails AI as a named AI product. Guardrails AI publishes product information at guardrailsai.com. Guardrails AI is recorded in United States.

  • Lakera

    The AI-native security platform to accelerate GenAI initiatives—trusted by Fortune 500s, backed by the world’s largest AI red team. Lakera publishes Lakera Guard as named AI produc

  • Meta

    Meta Platforms sells family-of-apps advertising products and open Llama models. Public AI pages cover research models, Llama releases and developer tooling. Meta publishes LlamaFir

  • NeuralTrust

    Protect your AI Agents and Applications from attacks, hallucinations and data leakages with our AI native entreprise-grade cybersecurity solutions. NeuralTrust publishes TrustTest,

  • NVIDIA

    NVIDIA sells GPUs, CUDA software and AI enterprise stacks used for training and inference. Public pages cover data-centre, cloud and on-prem AI compute. NVIDIA publishes NVIDIA cuO

  • Palo Alto Networks

    Implement Zero Trust, Secure your Network, Cloud workloads, Hybrid Workforce, Leverage Threat Intelligence & Security Consulting. Cybersecurity Services & Education for CISO’

  • Patronus AI

    Patronus AI develops simulation research and infrastructure to accelerate progress toward human-aligned AGI. Patronus AI publishes Lynx and Patronus AI Evaluator as named AI produc

Products

Claimed products appear first. Ranking packs and payment do not change this list.

Also used in this category

These products have a different primary category so they do not compete for the same ranking queries. They are listed here because buyers still encounter them in this job.

Related categories

Relevant procurement and assurance guides

Frequently asked questions

What is Guardrails?

Runtime policy enforcement on inputs and outputs of AI systems. Jobs: allow/deny policies; pii blocking; topic filters.

What should not be listed as Guardrails?

Products whose buyer job is moderation classifiers, injection-only products, or eval harnesses. Those belong on their own category page so search queries are not split.

Has AI Trustmark independently assessed every Guardrails supplier?

No. A category listing is descriptive. Independent assessment is shown only on company or product pages that carry Trustmark evidence.

What security testing evidence should buyers request for an AI product?

Ask what was tested, against which version, whether prompt-injection, data-exfiltration and tenant isolation were in scope, and where failed prompts were stored. A generic ISO certificate or a vendor scanner screenshot is not by itself an AI TrustMark assessment.

How should prompt injection and tool-output attacks be controlled?

Agents that read untrusted content or tool output can be instructed to exfiltrate data or take writes. Buyers should ask what is treated as untrusted, whether tool output can change the plan, and what tests were run. Scanner marketing is not the same as independent testing.

What model or provider changes should a buyer insist on being told about?

Material change usually includes a new model family, new region, new subprocessor, new write-capable tool, or a change that affects logging, privacy or human oversight. Those changes should trigger evidence refresh rather than a silent release.

How should buyers verify where AI customer data is processed?

Ask for the named processing locations, cloud regions and any subprocessors that see prompts, files or outputs. A directory listing is not evidence of residency. Independent assessment records the locations that were in scope on the assessment date.

Does a TrustMark on one product cover the rest of the company?

No. Independent assessment is scoped to the named organisation and, where relevant, the named product. Category pages list suppliers as a topic label. They do not imply that every listed company has been assessed.