AI Infrastructure Security

Best AI Security Platforms 2026 Expert Guide

AI security isn't one category. It's seven distinct control problems, each requiring different tooling, different expertise, and different vendors. This guide breaks down the leading platforms by the specific layer they address — so buyers can evaluate on the problem they actually need to solve, not on how a vendor chose to market itself.

Updated on May 21, 2026
Best AI Security Platforms 2026 Expert Guide

Why You Can Trust GetAIGovernance + Our Research

Every vendor on this page was evaluated against the same criteria using public documentation, funding disclosures, integration listings, customer evidence, and independent industry recognition. No vendor paid to be ranked. Rankings reflect our independent editorial assessment of each platform's fit, depth, and differentiation within the AI security category.

BE AWARE: THE NUMBER RANKINGS "#1, #2..." DO NOT MEAN ONE COMPANY IS BETTER. THAT IS JUST HOW THEY WERE LISTED. ONE COMPANY IS NOT BETTER BECAUSE OF THE AMOUNT OF FUNDING OR THE TIME THEY'VE BEEN ACTIVE. COMPANIES ARE RANKED IN ALPHABETICAL ORDER

Most organizations trying to secure enterprise AI are solving several different problems under a single label. Some need to protect deployed models from adversarial manipulation. Others need to govern how agents access enterprise systems. Some need to secure the pipelines where models are trained and stored. And others need to detect threats that use AI as a weapon against their infrastructure. These aren't variations of the same problem, they're completely different problems that require completely different platforms. They require AI Security platforms

The result is a fragmented market where vendors use overlapping language to describe capabilities that operate at entirely different layers of the AI stack. Buyers end up comparing platforms that don't compete, missing the gaps in their actual coverage, and building security programs that appear complete while leaving specific layers exposed.

This guide organizes the leading AI security platforms by the specific control layer they address. The goal isn't to rank companies against each other. It's to clarify which platform addresses which problem, so procurement decisions are made based on actual coverage rather than marketing positioning from the companies.

The AI Security Platforms: A Quick Overview

PLATFORM

PRICING

CONTROL LAYER

BEST FOR

HackerOne

Contact for pricing

AI Vulnerability Management — AI-assisted pen testing, bug bounty, continuous validation

Enterprise security programs needing continuous AI-assisted vulnerability discovery and validation

HiddenLayer

Contact for pricing

AI Model Security — adversarial defense, model scanning, supply chain protection

Organizations protecting deployed ML models from adversarial manipulation and supply chain attacks

LatticeFlow AI

Contact for pricing

AI Model Assurance — LLM evaluation, safety compliance testing, regulatory alignment

Organizations validating LLM behavior against safety, regulatory, and EU AI Act requirements

Mindgard

Contact for pricing

Adversarial Defense — continuous automated red-teaming of deployed AI systems

Security teams running automated adversarial testing against production LLMs and AI applications

Nudge Security

Contact for pricing

AI Asset Discovery — shadow AI detection, SaaS inventory, OAuth grant visibility

Security teams that don't know how many AI tools are running in their environment and need to find out

Oligo Security

Contact for pricing

AI Infrastructure Security — open source library monitoring, runtime vulnerability detection

Engineering and security teams monitoring AI dependencies and open source libraries in production

Polygraf AI

Contact for pricing

Content Integrity and AI Threat Detection — deepfake detection, PII classification, adversarial prompt testing

Government, defense, and enterprise organizations detecting AI-generated fraud and synthetic content threats

Prescient Security

Contact for pricing

Continuous AI Pentesting — automated red-teaming, real-time exploit validation, compliance evidence

Organizations replacing point-in-time penetration testing with continuous, AI-powered adversarial assessment

Protect AI

Contact for pricing

AI/ML Pipeline Security — open source scanning, model registry protection, MLOps governance

Data science and MLOps teams securing the infrastructure where models are built and stored

Silverfort

Contact for pricing

AI Identity and Access Control — agent identity governance, runtime IAM enforcement

Enterprises extending identity security to AI agents and non-human identities across hybrid environments

SlashID

Contact for pricing

Agentic Identity — OAuth and MCP security, agent authentication, credential governance

Organizations governing how AI agents authenticate and what they can access across enterprise systems

SnapLogic

Contact for pricing

LLM Interaction — AI Gateway enforcement, MCP transaction governance, input/output policy at the prompt layer

Organizations that need active policy enforcement at the LLM API call level across multiple model providers in addition to adversarial testing of those same boundaries

What AI Security Platforms Actually Do

AI security platforms don't solve a single problem. The label covers at least seven distinct control layers, and each one requires different capabilities, different integration points, and different buyers inside the organization.

The model security layer protects deployed AI models from adversarial manipulation — attacks designed to extract information from the model, cause it to behave in unintended ways, or compromise its integrity. The pipeline security layer protects the infrastructure where models are trained, stored, and deployed — open source libraries, model registries, and MLOps environments. The identity layer governs how AI agents and non-human identities authenticate and what they can access. The discovery layer identifies what AI tools and systems are running across an environment, including unauthorized shadow deployments. The adversarial defense layer tests AI systems against attack to validate their robustness before incidents occur. The infrastructure layer monitors runtime vulnerabilities in AI dependencies and execution environments. And the content integrity layer detects AI-generated fraud — deepfakes, synthetic documents, and adversarial prompts — before they reach production.

Organizations that try to address all seven with a single platform will either compromise depth in some layers or pay for capabilities they don't need.

The most effective AI security programs are built by identifying which layers are most exposed, selecting specialized platforms for those gaps, and ensuring the layers integrate enough to share context across the security stack.

  1. AI VULNERABILITY MANAGEMENT AND BUG BOUNTY (Defense)

HackerOne — Best for AI-Assisted Vulnerability Discovery and Continuous Validation

AI-powered pen testing, bug bounty, vulnerability validation, continuous security assessment

Choose HackerOne if: you run a mature security program and need to extend vulnerability discovery and validation into AI systems — using AI-assisted testing and a global researcher community to find vulnerabilities at a pace and scale that traditional pen testing can't match.

FOUNDED: 2012

HQ San Francisco, CA

COMPANY SIZE~400 employees

FUNDING: $160M+

HackerOne is the most established platform in this guide by founding date and scale. The company built the bug bounty and vulnerability disclosure market and is now extending that model into AI systems specifically through AI-assisted validation. Their h1 Validation product uses AI to verify whether reported vulnerabilities are genuine and exploitable, reducing the triage burden on security teams and improving signal-to-noise in bug bounty programs.

The Opus 4.7 vulnerability validation benchmarks published by HackerOne document how AI-assisted validation compares to human triage across different vulnerability categories — providing measurable evidence of where AI augmentation improves security program efficiency rather than marketing claims. For organizations running bug bounty programs or continuous assessment programs that are starting to incorporate AI, HackerOne provides the infrastructure to do that at scale with accountability built in.

✓ What We Like

  • Established track record: Most proven vulnerability discovery platform in this comparison — 14 years of enterprise deployment

  • AI-assisted validation: Extends the platform with AI validation while maintaining human researcher quality

  • Published benchmarks: Opus 4.7 validation data provides measurable evidence of AI effectiveness

  • Scale: Global researcher community provides coverage breadth no single team can match

  • Enterprise integration: Deep integration with security program workflows across large organizations

⚠ What to Know

  • Vulnerability discovery and validation focus — doesn't address model security, identity, or content integrity layers

  • Enterprise complexity and pricing to match the platform's scale

  • Most value comes from mature security programs that have the processes to act on what the platform surfaces

  • Bug bounty program management requires dedicated security team bandwidth

SECURITY COVERAGE

AI-assisted vulnerability validation (h1 Validation)

Bug bounty program management

Continuous vulnerability discovery

AI penetration testing coordination

Vulnerability disclosure management

BEST FOR

  • Enterprise security programs:Organizations with mature security operations that need to extend vulnerability discovery into AI systems

  • Organizations running bug bounty: Teams already using crowd-sourced security research who want AI-assisted validation to reduce triage burden

  • Large attack surfaces:Companies with complex AI deployments where continuous assessment is more appropriate than periodic testing

Pricing: Not publicly listed. Enterprise sales required. Contact HackerOne or request a match through GetAIGovernance.net.

  1. AI MODEL SECURITY (Build)

HiddenLayer — Best for Protecting Deployed AI Models from Adversarial Attack

AI model protection, adversarial defense, supply chain security for ML models

Choose HiddenLayer if: you have AI models in production and need to detect adversarial attacks, scan models for embedded threats, and protect the supply chain that delivers models into your environment — without disrupting the systems they run on.

FOUNDED: 2022

HQ: Austin, TX

COMPANY SIZE ~110 employees

FUNDING: $50M Series A

HiddenLayer operates at the model layer — the specific point in the AI stack where adversarial attacks targeting the model itself occur. Rather than focusing on the application layer above the model or the infrastructure below it, HiddenLayer's platform is designed to detect attacks that attempt to manipulate, extract information from, or compromise the integrity of deployed ML models.

The platform includes model scanning capabilities that identify whether models have been tampered with, contain embedded malicious code, or were compromised during development or distribution. This addresses a growing attack surface: as organizations increasingly pull models from public repositories like Hugging Face, the risk of ingesting a model that contains a backdoor or infostealer alongside its legitimate weights has become a documented threat. HiddenLayer's research team identified an infostealer embedded in a trending Hugging Face repository — the Open-OSS privacy-filter incident — and has been publishing research on supply chain threats to AI systems since the company's founding.

The platform also covers the runtime layer, monitoring model behavior for signs of adversarial manipulation during inference and detecting attacks like model inversion, membership inference, and evasion attempts. For organizations running AI in high-stakes environments, this provides a layer of protection that sits between the model and the production environment it serves.

✓ What We Like

  • Model-layer focus: Purpose-built for protecting the model itself, not the application or infrastructure around it

  • Supply chain protection: Scans models from external sources before they're loaded into production environments

  • Original research: Published documented threat discoveries including the Hugging Face malware incident

  • Runtime monitoring: Detects adversarial attacks during inference, not just pre-deployment

  • Strong backing: $50M Series A with enterprise-grade investors signals maturity

⚠ What to Know

  • Focused specifically on model security — doesn't cover pipeline, identity, or application layers

  • Best paired with a broader security stack covering adjacent layers

  • Integration requirements depend on model deployment environment and architecture

  • Pricing not publicly listed — requires direct sales engagement

SECURITY COVERAGE

Model scanning and integrity verification

Supply chain threat detection

Adversarial attack detection at inference

Model inversion and extraction defense

Runtime model behavioral monitoring

Evasion attack detection

BEST FOR

  • ML-heavy enterprises:Organizations with significant model portfolios in production that need protection at the model layer

  • Organizations using external models: Teams pulling models from public repositories who need to verify integrity before deployment

  • High-stakes AI environments:Financial services, healthcare, and defense organizations where model compromise carries significant consequences

Pricing: Not publicly listed. Enterprise sales required. Contact HiddenLayer directly or request a match through GetAIGovernance.net.

  1. AI MODEL ASSURANCE AND SAFETY VALIDATION (Proof)

LatticeFlow AI — Best for LLM Safety Evaluation and Regulatory Compliance Testing

LLM evaluation, safety compliance testing, EU AI Act alignment, model assurance

Choose LatticeFlow AI if: you need structured evaluation of LLM behavior against safety requirements and regulatory standards — including EU AI Act compliance testing — before and during deployment, with documentation that can support audit and regulatory examination.

FOUNDED: 2020

HQ: Zurich, Switzerland

COMPANY SIZE ~40 employees

FUNDING: $12M+

LatticeFlow AI approaches AI security from the model evaluation angle — specifically testing whether LLMs behave safely and in compliance with regulatory requirements. The platform's Atlas product, which GAIG covered at launch, provides structured evaluation frameworks that assess models against safety criteria, identify failure modes under different conditions, and produce documentation aligned with EU AI Act conformity assessment requirements.

The platform is particularly relevant for organizations preparing for EU AI Act exposure compliance, where high-risk AI systems require documented technical evidence of safety evaluation before deployment and continued monitoring during operation. LatticeFlow's evaluation methodology provides that evidence in a form regulators can review, closing the gap between informal safety assessments and the structured documentation the regulation requires.

✓ What We Like

  • EU AI Act alignment: Evaluation frameworks specifically designed to generate regulatory-compliant safety evidence

  • Structured LLM evaluation: Systematic assessment methodology rather than ad-hoc testing

  • Audit-ready documentation: Produces evidence in the format regulators expect to review

  • Academic foundation: ETH Zurich research pedigree provides technical credibility

  • Atlas product: Comprehensive evaluation platform covering multiple safety dimensions

What to Know

  • Evaluation and assurance focus — doesn't address runtime adversarial defense or identity layers

  • Most relevant for organizations with significant EU regulatory exposure

  • Evaluation platform requires integration with model deployment environment

  • Primarily pre-deployment and compliance evaluation rather than continuous production monitoring

SECURITY COVERAGE

LLM safety evaluation and testing

EU AI Act conformity assessment support

Model failure mode identification

Regulatory compliance documentation

Structured safety benchmark testing

BEST FOR

  • EU-exposed organizations: Companies deploying high-risk AI systems under EU AI Act obligations who need structured safety evaluation documentation

  • LLM deployment programs: Organizations deploying large language models that need systematic safety and behavioral evaluation

  • Compliance-driven security teams: Teams where regulatory evidence generation is as important as threat detection

Pricing: Not publicly listed. Contact LatticeFlow AI or request a match through GetAIGovernance.net.

  1. ADVERSARIAL DEFENSE AND RED TEAMING (Input / Output) (Defense)

Mindgard — Best for Continuous Automated Red-Teaming of AI Systems

AI red teaming, adversarial testing, jailbreak detection, LLM security validation

Choose Mindgard if: you need to continuously test AI systems against adversarial attacks — jailbreaks, prompt injection, data extraction — and want automated red-teaming that runs against production systems without requiring a manual engagement every time the model changes.

FOUNDED: 2022

HQ: Lancaster, UK

COMPANY SIZE ~60 employees

FUNDING: $8M+

Mindgard is built on research from Lancaster University's Security Lancaster group and focuses on a specific and underserved problem in AI security: continuous adversarial testing. Most organizations that run red team exercises against AI systems do them once, at a point in time, before deployment. But AI systems change — models get updated, prompts get modified, use cases expand. The adversarial surface that was tested last quarter may be fundamentally different from what's running in production today.

The platform automates adversarial testing so it can run continuously against deployed AI systems, covering a range of attack types including prompt injection, jailbreaks, model extraction attempts, and data poisoning patterns. Mindgard's research team has documented specific jailbreaks against major models including cases where Claude provided instructions for making explosives — the kind of adversarial finding that demonstrates the gap between documented model behavior and actual production behavior under attack conditions.

For security teams that need to demonstrate continuous AI security validation rather than point-in-time assessments, Mindgard provides the audit evidence that a single annual red team engagement can't produce. This makes it particularly relevant for organizations facing EU AI Act requirements around ongoing risk monitoring and organizations where AI safety is subject to regulatory scrutiny.

✓ What We Like

  • Continuous testing: Runs adversarial tests automatically rather than requiring manual engagement scheduling

  • Academic foundation: Built from Security Lancaster research — genuine technical depth behind the platform

  • Published research: Documented real-world jailbreak findings provide credibility for the platform's detection capabilities

  • Audit evidence generation:Continuous testing produces documentation regulators and auditors can use

  • Coverage breadth: Tests across multiple attack categories simultaneously

⚠ What to Know

  • Focused specifically on adversarial testing — doesn't address identity, pipeline, or infrastructure layers

  • Smaller funding base and team than some competitors in adjacent categories

  • Integration requirements vary by model deployment architecture

  • Most effective when paired with platforms that address the controls adversarial testing is validating

SECURITY COVERAGE

Continuous automated red-teaming

Jailbreak detection and testing

Prompt injection validation

Model extraction defense testing

Data poisoning pattern detection

Adversarial audit evidence generation

BEST FOR

  • Security teams running AI:Organizations that need continuous validation of AI system behavior under adversarial conditions

  • EU AI Act compliance programs: Organizations requiring ongoing risk monitoring documentation for high-risk AI systems

  • LLM-heavy deployments:Companies running generative AI at scale where jailbreak and prompt injection risk is active

Pricing: Not publicly listed. Contact Mindgard or request a match through GetAIGovernance.net.

  1. AI ASSET DISCOVERY AND SHADOW AI DETECTION (Know What Exists)

Nudge Security — Best for Finding Every AI Tool Running in Your Environment

SaaS discovery, shadow AI detection, OAuth grant visibility, AI inventory management

Choose Nudge Security if: you genuinely don't know how many AI tools are running in your environment and you need to find them — including the ones your employees deployed without IT approval — before you can govern or secure them.

FOUNDED: 2021

HQ: Austin, TX

COMPANY SIZE ~35 employees

FUNDING: $10M+

Nudge Security addresses the visibility problem that has to be solved before any other AI security layer can operate effectively. You can't govern agents you don't know about. You can't protect models that aren't in your inventory. You can't secure credentials for tools that were never disclosed to IT. The shadow AI problem — employees deploying AI tools without formal approval — has made this visibility layer increasingly critical as AI adoption has accelerated across every function in the enterprise.

The platform discovers SaaS applications and AI tools across an environment by analyzing OAuth grants and authentication patterns, building a complete picture of what tools employees are connecting to and what access those connections have granted. This surfaces the shadow AI deployments that security teams don't know about — the ChatGPT Plus accounts connected to corporate email, the Cursor subscriptions accessing code repositories, the autonomous agents employees have deployed under personal credentials that carry corporate data. The SentinelOne 2026 AI and Cloud report documented that AI-related secrets grew 140% in one year — Nudge Security addresses the organizational pattern that produces that growth.

✓ What We Like

  • Discovery-first approach: Finds what's actually running before attempting to govern or secure it

  • Shadow AI detection: Surfaces unauthorized AI deployments that don't appear in formal IT inventories

  • OAuth grant visibility: Shows what access employees have granted to AI tools through connected accounts

  • Low deployment friction:Discovery-focused architecture integrates without requiring agents on every endpoint

  • Actionable inventory: Produces a prioritized list of AI exposure the security team can act on immediately

⚠ What to Know

  • Discovery platform — doesn't directly enforce controls, monitor models, or govern agent behavior

  • Best as the first step in a broader security program rather than a standalone solution

  • Effectiveness depends on coverage of OAuth and authentication telemetry available in the environment

  • Smaller platform relative to enterprise security vendors

SECURITY COVERAGE

Shadow AI discovery across the environment

SaaS application inventory

OAuth grant visibility and mapping

Unauthorized AI tool detection

AI credential exposure identification

BEST FOR

  • Security teams starting AI security programs:Organizations that need to establish what's running before building controls around it

  • High shadow AI environments: Companies where employee AI adoption has significantly outpaced IT visibility

  • Mid-market security teams:Organizations that need comprehensive AI visibility without enterprise procurement complexity

Pricing: Not publicly listed. Contact Nudge Security or request a match through GetAIGovernance.net.

  1. AI INFRASTRUCTURE AND RUNTIME SECURITY (Control in Action)

Oligo Security — Best for Runtime Vulnerability Detection in AI Infrastructure

Open source library monitoring, runtime vulnerability detection, AI dependency security

Choose Oligo Security if: you need visibility into vulnerabilities in the open source libraries and dependencies your AI systems use at runtime — specifically catching the class of vulnerabilities that only manifest when the code is actually executing in production.

FOUNDED: 2022

HQ: Tel Aviv, Israel

COMPANY SIZE ~40 employees

FUNDING: $28M Series A

Oligo Security addresses a specific gap in AI infrastructure security: vulnerabilities that exist in open source libraries used by AI systems but that only become exploitable when the code is running in a particular configuration. Static analysis tools scan code and flag known CVEs — but they can't distinguish between a vulnerability in a library that your AI application actually calls versus one that's present in the codebase but never executed. Oligo's runtime analysis capability makes that distinction, reducing alert noise and prioritizing the vulnerabilities that represent genuine exposure

The platform's research team documented CVE-2026-31431 (Copy Fail) — a local-becomes-full-system vulnerability in AI infrastructure that demonstrated how an apparently contained vulnerability in a copy operation could escalate to system-level compromise. This kind of original vulnerability research demonstrates the team's depth in AI infrastructure security specifically, not just general application security

✓ What We Like

  • Runtime detection: Identifies vulnerabilities that only manifest during execution, not just static code analysis

  • AI-specific research: Published original CVE research specific to AI infrastructure vulnerabilities

  • Reduced alert noise: Distinguishes between reachable and unreachable vulnerabilities to prioritize real exposure

  • Open source coverage: Monitors the libraries AI applications actually depend on in production

What to Know

  • Focused on infrastructure and dependency security — doesn't address model adversarial defense or identity layers

  • Runtime instrumentation requires integration with existing deployment infrastructure

  • Smaller platform relative to established application security vendors

  • Most valuable as part of a complete AI security stack rather than a standalone solution

SECURITY COVERAGE

Runtime vulnerability detection in AI dependencies

Open source library security monitoring

Reachable vs. unreachable vulnerability classification

AI infrastructure CVE research and coverage

Production environment dependency monitoring

BEST FOR

  • Engineering and security teams: Organizations that need runtime visibility into AI dependency vulnerabilities, not just static scan results

  • Open source-heavy AI stacks: Companies running AI applications built on top of complex dependency trees where static analysis produces too much noise

  • Production AI environments: Teams that need to identify genuine exploitable vulnerabilities in live systems rather than theoretical exposure

Pricing: Not publicly listed. Contact Oligo Security or request a match through GetAIGovernance.net.

  1. CONTENT INTEGRITY AND AI THREAT DETECTION (Proof)

Polygraf AI — Best for Detecting AI-Generated Fraud and Synthetic Content Threats

Deepfake detection, AI content authentication, PII classification, adversarial prompt testing

Choose Polygraf AI if: your threat model includes AI-generated fraud — deepfake executive impersonation, synthetic document injection, adversarial prompts targeting your deployed models — and you need detection capabilities that work at government-grade accuracy levels.

FOUNDED: 2022

HQ: Washington, DC

COMPANY SIZE ~25 employees

FUNDING: SXSW Pitch Winner 2025

Polygraf AI operates at the content integrity layer — detecting AI-generated threats before they reach production systems or human decision-makers. The platform covers three distinct threat categories: synthetic content detection (deepfakes, AI-generated documents, fabricated audio), PII classification and redaction at scale, and adversarial prompt testing for deployed LLMs.

The PII detection capability is the most benchmarked. Polygraf AI published internal research comparing their platform against Amazon Comprehend, Microsoft Azure Information Protection, and Google Cloud DLP across 27 PII categories. Their reported F1-score of 90.2% compared to Amazon Comprehend's 52.6% across the same benchmark represents a significant detection gap in a category that matters enormously for organizations handling sensitive data in AI workflows. Note that this is a self-reported internal benchmark — not an independent third-party evaluation — and should be validated independently before procurement decisions are based on it.

The platform is cleared for government work up to IL6 security levels, which provides a baseline credibility signal for organizations in high-security environments. The SXSW Pitch competition win in 2025 provides independent validation of the platform's technical differentiation from a non-commercial evaluator.

✓ What We Like

  • Content integrity specialization: Specifically built for detecting AI-generated threats, not general security

  • PII detection depth: 27 PII categories with documented detection performance

  • Government clearance: IL2–IL6 support provides credibility for high-security environments

  • Adversarial prompt testing:Combines content integrity with model adversarial testing in one platform

  • Independent validation: SXSW Pitch winner provides non-commercial recognition

⚠ What to Know

  • PII benchmark is self-reported by Polygraf AI — independent third-party validation hasn't been published

  • Smaller and less established than enterprise security vendors in this comparison

  • Content integrity layer — doesn't address pipeline security, identity, or infrastructure layers

  • Best suited for organizations with specific synthetic content or government-security requirements

SECURITY COVERAGE

Deepfake and synthetic content detection

AI-generated voice threat detection

PII detection across 27 categories

Content provenance tracking

Adversarial prompt testing (DARPA-grade methodology)

Human vs. AI content classification

BEST FOR

  • Government and defense organizations: High-security environments where AI-generated fraud in adversarial contexts is an active threat

  • Financial services and legal:Organizations where deepfake executive impersonation or synthetic document injection represents real operational risk

  • Organizations with PII handling requirements: Teams that need high-accuracy PII detection across AI workflows at scale

Pricing: Not publicly listed. Contact Polygraf AI or request a match through GetAIGovernance.net.

  1. CONTINUOUS AI PENETRATION TESTING (Control in Action)

Prescient Security — Best for Replacing Point-in-Time Pen Tests with Continuous AI-Powered Assessment

Continuous pentesting, AI-assisted red teaming, real-time exploit validation, compliance evidence

Choose Prescient Security if:you're running annual or semi-annual penetration tests and want to replace that point-in-time model with continuous AI-powered security assessment that surfaces new vulnerabilities as they emerge rather than months after they've appeared.

FOUNDED: 2018

HQ: Austin, TX

COMPANY SIZE ~50 employees

Prescient Security launched CAIT — their Continuous AI Pentester — as a direct response to the growing mismatch between point-in-time penetration testing and the continuous nature of modern AI threat environments. Traditional pen testing produces a snapshot of exposure at a specific moment. AI systems change — models update, configurations shift, new attack techniques emerge — and the exposure picture from last quarter's pen test may be significantly different from what's true in production today.

CAIT provides ongoing adversarial assessment that runs against AI systems continuously rather than on an engagement schedule. This is particularly relevant for organizations with EU AI Act obligations around post-market monitoring, where ongoing risk assessment is a regulatory requirement rather than a best practice. The platform also provides compliance evidence documentation from its continuous testing activity — audit trails that demonstrate ongoing security assessment in a form regulators can review.

✓ What We Like

  • Continuous model: Replaces periodic engagements with ongoing assessment that keeps pace with AI system changes

  • CAIT product: Specifically designed AI pentester rather than a general tool adapted for AI

  • Compliance evidence:Continuous testing produces ongoing documentation for regulatory requirements

  • EU AI Act alignment: Continuous monitoring capability maps to post-market monitoring obligations

  • Austin presence: Positioned in a major AI hub with local enterprise relationships

⚠ What to Know

  • Relatively newer entrant compared to HackerOne and established pen testing firms

  • Continuous assessment model requires integration with production environments

  • Less publicly documented evidence base than some competitors at this stage

  • Best positioned for organizations ready to commit to continuous security assessment model

SECURITY COVERAGE

Continuous AI penetration testing (CAIT)

AI-assisted red team automation

Real-time exploit validation

Compliance evidence from continuous testing

Post-market monitoring documentation

BEST FOR

  • Organizations moving beyond annual pen tests: Teams that recognize point-in-time testing is insufficient for continuously evolving AI deployments

  • EU AI Act compliance programs: Organizations requiring continuous post-market monitoring documentation for high-risk AI systems

  • Mature AI security programs:Teams ready to integrate continuous adversarial assessment into their ongoing security operations

Pricing: Not publicly listed. Contact Prescient Security or request a match through GetAIGovernance.net.

  1. AI/ML PIPELINE SECURITY (Build)

Protect AI — Best for Securing the AI/ML Development Pipeline

MLOps security, open source model scanning, AI/ML bug bounty, supply chain governance

Choose Protect AI if: your security challenge lives in the development pipeline — open source libraries, model registries, Jupyter notebooks, and MLOps infrastructure — and you need continuous scanning and governance across the full stack of tools your data science team uses to build AI.

FOUNDED: 2022

HQ: Seattle, WA

COMPANY SIZE ~100 employees

FUNDING: $60M Series B

Protect AI addresses the layer that most security teams have the least visibility into: the development pipeline where AI models are actually built. This includes the open source libraries data scientists use, the Jupyter notebooks where experiments are run, the model registries where artifacts are stored, and the MLOps tooling that moves models from development to production. Each of these represents an attack surface that traditional application security tools weren't designed to cover.

The platform's flagship capability is continuous scanning of open source AI/ML components for known vulnerabilities, malicious packages, and supply chain compromises. Protect AI maintains Huntr — an AI/ML-specific bug bounty community — which feeds novel vulnerability discoveries directly into their scanning intelligence. This creates a feedback loop between community-reported threat findings and production security coverage that general purpose tools can't replicate.

The platform also provides a governance layer across the AI development stack, creating visibility into what models are being used, where they came from, and what their security posture looks like before they reach production. For organizations where data science and security teams operate in separate worlds, Protect AI creates the common language and tooling that allows security oversight to operate at the speed of AI development.

✓ What We Like

  • Pipeline-layer focus: Addresses the development infrastructure layer that most platforms ignore

  • Huntr bug bounty: AI/ML-specific vulnerability community provides continuously updated threat intelligence

  • Open source coverage: Scans libraries and packages in AI/ML development environments, not just application code

  • MLOps integration: Connects to the tools data science teams already use

  • Community-driven intelligence: Novel vulnerability findings from Huntr feed directly into scanning capabilities

⚠ What to Know

  • Focus is on pipeline and development security, not deployed model adversarial defense

  • Most effective for organizations with mature data science and MLOps environments

  • Requires integration with existing development workflows to be fully effective

  • Some capabilities overlap with HiddenLayer at the model scanning layer — organizations may need both

SECURITY COVERAGE

Open source AI/ML library scanning

Model supply chain security

MLOps infrastructure governance

Jupyter notebook securityAI/ML vulnerability intelligence (Huntr)

Model registry security

BEST FOR

  • Data science and MLOps teams: Organizations that need security coverage inside the development pipeline, not just at the application boundary

  • Open source-heavy AI programs: Teams heavily reliant on publicly available models and libraries that need continuous scanning

  • Organizations building governance across AI development: Teams creating accountability from development through deployment

Pricing: Not publicly listed. Enterprise sales required. Contact Protect AI or request a match through GetAIGovernance.net.

  1. AI IDENTITY AND ACCESS CONTROL (Who Can Do What)

Silverfort — Best for Extending Identity Security to AI Agents

Non-human identity governance, AI agent IAM, runtime access control, Fabrix-powered agent security

Choose Silverfort if: your identity security program was built for human users and you're now deploying AI agents that operate under service accounts, OAuth tokens, and API credentials that your existing IAM tools weren't designed to govern.

FOUNDED: 2016

HQ: Tel Aviv, Israel

COMPANY SIZE ~400 employees

FUNDING: $223M+

Silverfort is the most established identity security platform in this guide and the one that's moved most deliberately into the AI agent governance space. Their acquisition of Fabrix Security in 2026 added agentic identity governance capabilities specifically designed for the way AI agents authenticate and operate across enterprise environments — under service accounts with elevated permissions, using credentials that may never expire, and accessing systems in ways that human IAM governance wasn't designed to monitor.

The core problem Silverfort addresses is that traditional IAM tools govern human identities. They're designed around the assumption that a person authenticates, operates within a session, and logs out. AI agents don't work that way. They authenticate at deployment, operate continuously, and may access dozens of systems over their lifetime under a service account that nobody reviews on a regular cadence. Silverfort's platform extends identity governance into this environment — detecting anomalous access patterns from agent identities, applying zero-trust policies to non-human accounts, and creating audit trails for what agents authenticate as and what they access.

The Delinea 2026 Identity Security Report documented that non-human identities now outnumber human accounts 82:1 in enterprise environments — and that most organizations have weaker controls on those accounts than on human ones. Silverfort's platform addresses exactly that gap. The Fabrix acquisition specifically brings autonomous identity security at runtime, allowing organizations to govern agent actions as they happen rather than auditing after the fact.

✓ What We Like

  • Established identity platform:Deep enterprise identity security experience brought into the AI agent space

  • Fabrix acquisition: Adds autonomous runtime identity security specifically for AI agent environments

  • Non-human identity coverage:Directly addresses the 82:1 NHI-to-human account ratio most organizations have

  • Zero-trust for agents: Applies zero-trust principles to non-human identities that traditional IAM tools miss

  • Strong funding and scale:$223M+ with broad enterprise deployment

⚠ What to Know

  • Primary strength is identity — doesn't address model security, adversarial defense, or pipeline layers

  • Enterprise scale means implementation complexity and procurement timelines to match

  • Agentic identity capabilities are relatively new following the Fabrix acquisition

  • Most effective in environments with complex hybrid identity infrastructure

SECURITY COVERAGE

Non-human identity governanceAI agent access controlService account anomaly detectionZero-trust for agent identitiesRuntime autonomous identity enforcement (Fabrix)Identity audit trail across human and non-human accounts

BEST FOR

  • Enterprises deploying AI agents: Organizations running autonomous agents that need identity governance beyond human IAM tools

  • Hybrid cloud environments:Teams managing identity across on-premise and cloud infrastructure where agents operate across both

  • Zero-trust programs:Organizations extending zero-trust architecture to cover non-human identities as agent deployment scales

Pricing: Not publicly listed. Enterprise sales required. Contact Silverfort or request a match through GetAIGovernance.net.

  1. AGENTIC IDENTITY AND MCP SECURITY (Who Can Do What)

SlashID — Best for Governing How AI Agents Authenticate and Access Systems

OAuth security for agents, MCP authentication governance, agentic credential management

Choose SlashID if: your AI agents use OAuth or MCP to connect to enterprise systems and you need governance over how those credentials are issued, what they grant access to, and how they're rotated and revoked as agents change or are retired.

FOUNDED: 2021

HQ: San Francisco, CA

COMPANY SIZE ~40 employees

FUNDING: $12M+

SlashID addresses a specific authentication gap that emerged with the proliferation of AI agents using Model Context Protocol as their integration layer. MCP allows agents to connect to enterprise systems — databases, APIs, internal tools — with a level of access that traditional OAuth flows weren't designed to govern at agent scale. The authentication patterns that work for humans authorizing specific application access break down when agents are making hundreds of authenticated requests across dozens of systems without a human initiating each transaction.

The platform provides credential governance specifically designed for agentic AI deployments. This includes managing how OAuth tokens are issued to agents, enforcing scope limitations on what those tokens grant access to, detecting anomalous credential usage patterns that indicate a compromised or misbehaving agent, and managing the lifecycle of credentials as agents are updated, replaced, or retired. The SlashID launch coverage on GAIG documented the specific OAuth and MCP security gaps this platform addresses.

✓ What We Like

  • MCP-specific governance:Purpose-built for the authentication patterns AI agents use, not retrofitted human IAM

  • OAuth for agents: Addresses the specific credential management gaps in agent-to-system authentication

  • Credential lifecycle management: Governs issuance, rotation, and revocation across agent deployments

  • Modern architecture: Built for the agentic era rather than adapted from human identity tooling

⚠ What to Know

  • Narrower scope than Silverfort — specifically focused on OAuth and MCP credential governance

  • Most relevant for organizations that have already deployed agents using MCP integration

  • Smaller platform relative to enterprise identity vendors

  • May work best as a complement to broader identity security programs

SECURITY COVERAGE

OAuth credential governance for AI agents

MCP authentication security

Agentic credential lifecycle management

Anomalous agent credential usage detection

Scope enforcement for agent tokens

BEST FOR

  • MCP-enabled agent deployments: Organizations using MCP as the integration layer for AI agents across enterprise systems

  • OAuth-heavy environments:Teams managing credential governance across agents that use OAuth for enterprise system access

  • Agentic AI security programs:Organizations building security architecture specifically for autonomous agent deployments

Pricing: Not publicly listed. Contact SlashID or request a match through GetAIGovernance.net.

  1. LLM INTERACTION AND AI GATEWAY SECURITY (Input / Output)

SnapLogic — Best for Enforcing Policy at the LLM API Call Level Across the Enterprise

LLM INTERACTION AND AI GATEWAY SECURITY

AI Gateway, trusted agent identity, LLM interaction governance, input/output policy enforcement

Choose SnapLogic if: your organization is calling multiple LLMs across multiple business functions and needs a governance layer that enforces who can call which models, under what conditions, with what scope — and that logs every transaction for audit purposes regardless of which provider is on the other end.

FOUNDED: 2006

HQ: San Carlos, CA

COMPANY SIZE: ~600 employees

FUNDING: $165 million +

Mindgard, the other platform in the threat and vulnerability section of this guide, tests whether the input/output boundary of an LLM can be broken under adversarial conditions. SnapLogic addresses a different sub-problem at the same layer: enforcing what is allowed to pass through that boundary in production, on an ongoing basis, regardless of whether an attacker is present. Testing and enforcement are different operations, and an organization that has run red team exercises against its LLMs but has no gateway enforcement in place has validated its exposure without closing it.

SnapLogic's AI Gateway sits between enterprise users and the LLMs they interact with, applying identity verification, request policy, output filtering, and audit logging to every model API call across the organization. For enterprises running workloads across multiple LLM providers — OpenAI, Anthropic, Azure OpenAI, and others — the gateway provides a single enforcement layer rather than requiring separate governance configuration for each provider. A policy change at the gateway propagates across all connected models simultaneously rather than requiring updates across each individual integration.

The Trusted Agent Identity component addresses the specific problem that arises when AI agents call LLMs on behalf of human users, which is increasingly how enterprise AI workflows operate. In an agentic call, the agent holds the credential, makes the API request, and receives the response — but the governance question is whether that agent is authorized to make that specific call, with that specific context, on behalf of that specific user, against that specific model. SnapLogic's gateway verifies all four conditions at the transaction level before any call completes.

✓ What We Like

  • Centralized enforcement across multiple LLM providers through a single policy layer — one governance configuration, consistent behavior across all connected models

  • Trusted Agent Identity verifies agentic LLM calls at the agent identity, user identity, model, and context level simultaneously

  • Input filtering and prompt inspection happen before model invocation, catching policy violations at the request level rather than attempting to filter outputs after the fact

  • Complete audit logging of every model interaction with identity context, request content, response content, and policy decisions recorded

  • Enterprise-grade integration track record from nearly 20 years as a data integration platform — SnapLogic is not an AI-native startup adapting to enterprise requirements, it is an enterprise platform that extended into AI governance

⚠ What to Know

  • Gateway enforcement focus — does not address model artifact security, adversarial red teaming, or identity layer governance at the agent lifecycle level

  • Most valuable for organizations running AI workloads across multiple LLM providers who need consistent governance across all of them

  • Requires integration with existing LLM deployment architecture

  • The AI Gateway and Trusted Agent Identity capabilities are relatively new additions to a platform with much broader data integration history — buyers should verify the depth of AI-specific capabilities during evaluation

SECURITY COVERAGE

LLM API call identity verification

MCP transaction governance

Input prompt inspection and filtering

Output content policy enforcement

Trusted agent identity verification across agentic LLM calls

Complete interaction audit logging

Multi-provider governance from a single enforcement layer

BEST FOR

  • Enterprises running AI workloads across multiple LLM providers who need consistent governance applied at the API call level regardless of which model is being used

  • Organizations deploying AI agents that call LLMs as part of multi-step workflows where the agent identity and human user identity are distinct entities requiring separate authorization

  • Security and compliance teams that need a complete audit trail of every LLM interaction in the organization — including who called what model, with what input, and what came back

Pricing: Not publicly listed. Contact SnapLogic or request a match through GetAIGovernance.net.

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Our Take

AI SECURITY TAKE

The AI security market is going through the same fragmentation phase that cloud security went through five years ago. A dozen vendors are addressing different layers of the same problem under the same label, and buyers are trying to evaluate them against each other without a clear framework for which layer they actually need to address first.

The honest answer is that most organizations have significant gaps in multiple layers simultaneously. The shadow AI problem means there are AI tools running that security teams don't know about. The agent identity problem means those tools are operating under credentials that weren't designed to govern non-human access. The pipeline security problem means the models being deployed were built on open source libraries that nobody scanned before they went into production. And the adversarial defense problem means that the LLMs serving users have never been systematically tested against the attacks that are being used against them right now.

The organizations that build complete AI security programs don't solve all of these simultaneously — they rank their actual exposure, identify which layer is most critical to address first, and build out from there. The platforms in this guide address different layers and don't directly compete. A mature AI security stack will likely include platforms from multiple categories across this list, integrated enough to share context even if they were procured independently.

GetAIGovernance.net tracks vendors building across all seven control layers and routes qualified inquiries to the platforms most likely to fit specific environments and risk profiles. Browse the AI Security category in the marketplace or submit an inquiry to get matched.

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