AI Compliance Vendors

Alternatives directory

Knostic alternatives

Vendors in the directory with the most taxonomy overlap with Knostic — shared frameworks, capabilities, industries, and integrations.

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Last checked October 15, 2026

How this shortlist is built

Ranking is deterministic: same product category (heaviest signal), then shared framework coverage, capabilities, industries, and integrations documented on each vendor's profile. No editorial narrative has been written for this page yet.

If you want a long-form comparison with pros, cons, and verdicts, see our curated alternatives pages or run the matchmaker.

At-a-glance

AlternativeShared frameworksShared capabilitiesPricing
Noma Security—AI Discovery, Shadow AI Detection, AI Supply Chain Risk +7contact onlyCompare
Harmonic SecuritySOC 2 (Service Organization Control 2)Shadow AI Detection, AI Discovery, Data Leakage Prevention +3tieredCompare
WitnessAI—Shadow AI Detection, AI Discovery, Policy Enforcement +4tieredCompare
Prompt Security—Shadow AI Detection, AI Discovery, Data Leakage Prevention +4contact onlyCompare
GiskardSOC 2 (Service Organization Control 2)Prompt Injection Defense, Data Leakage Prevention, Policy Enforcement +2contact onlyCompare
Cisco AI Defense—AI Discovery, Shadow AI Detection, Prompt Injection Defense +3contact onlyCompare

How each alternative compares

#1

Noma Security

AI agent security platform covering discovery and posture (AI-SPM), agent access control, runtime detection and response, and red teaming

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Capabilities Noma Security has that Knostic doesn't

  • AI Bill of Materials
  • LLM Red Teaming
  • Agentic Red Teaming
  • Compliance Reporting
#2

Harmonic Security

Finds shadow AI and keeps sensitive data out of AI tools used by employees and agents, across browser, endpoint and MCP

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Capabilities Harmonic Security has that Knostic doesn't

  • Risk Scoring

Capabilities Knostic has that Harmonic Security doesn't

  • Prompt Injection Defense
  • AI Supply Chain Risk
  • Behavioral Monitoring
  • Human-in-the-Loop
#3

WitnessAI

Network-level visibility, policy control and runtime protection for employee AI use and AI agents, with list prices on AWS Marketplace

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Capabilities WitnessAI has that Knostic doesn't

  • LLM Guardrails
  • LLM Guardrails & Content Filtering
  • LLM Red Teaming

Capabilities Knostic has that WitnessAI doesn't

  • AI Supply Chain Risk
  • Behavioral Monitoring
  • Human-in-the-Loop
#4

Prompt Security

SentinelOne's AI security product for employee AI use, homegrown AI apps, coding assistants and agents; acquired by SentinelOne in September 2025

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Capabilities Prompt Security has that Knostic doesn't

  • AI Guardrails
  • LLM Guardrails & Content Filtering
  • LLM Red Teaming
  • Risk Scoring

Capabilities Knostic has that Prompt Security doesn't

  • AI Supply Chain Risk
  • Behavioral Monitoring
  • Human-in-the-Loop
#5

Giskard

European platform for red teaming, evaluating and guarding AI agents, with an Apache 2.0 open-source library and on-premise deployment

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Capabilities Giskard has that Knostic doesn't

  • LLM Red Teaming
  • Agentic Red Teaming
  • LLM Evaluation
  • Hallucination Detection
  • Bias & Fairness Testing

Capabilities Knostic has that Giskard doesn't

  • Shadow AI Detection
  • AI Discovery
  • Runtime Enforcement
  • AI Supply Chain Risk
  • Behavioral Monitoring
#6

Cisco AI Defense

Cisco's AI security product, built on Robust Intelligence: AI discovery, supply chain scanning, red teaming and runtime guardrails for apps and agents

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Capabilities Cisco AI Defense has that Knostic doesn't

  • LLM Red Teaming
  • Agentic Red Teaming
  • Model Validation
  • AI Guardrails
  • AI Bill of Materials

Capabilities Knostic has that Cisco AI Defense doesn't

  • Policy Enforcement
  • Behavioral Monitoring
  • Human-in-the-Loop
  • Audit Logging

Keep reading

Guide
AI guardrails: what they are, how they work and which to use
What AI and LLM guardrails are, where they sit, what they catch and miss, what standards expect, and how open-source, c…
Guide
Shadow AI: what it is, why it matters and how to manage it
Shadow AI is staff using AI tools their employer hasn’t approved. How common it is, real incidents, what the law requir…

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