AI Security Vendors

AI security vendors, compared

AI security vendors split by the job they do. Of 56 compared, 38 document runtime guardrails, 35 agent security, 34 AI-SPM and 29 red teaming. Thirteen have bought an AI security company, among them Palo Alto Networks (Protect AI), Check Point (Lakera) and Cisco (Robust Intelligence). Every cell links its source.

56 vendors 102 linked sources Checked

Squares per capability: Guardrails 38, Agent security 35, Red teaming 29, AI-SPM 34, Model scanning 11, Data protection 18 38 Guardrails A10 Networks TrojAI Akamai Firewall for AI Alice (ActiveFence) Amazon Bedrock Guardrails Arthur Aurascape Cato Networks AI Security Check Point AI Security Cisco AI Defense Cloudflare AI Security for Apps Coralogix AI Guardrails DeepKeep Enkrypt AI F5 AI Guardrails Fiddler AI Fortinet FortiAIGate Google Cloud Model Armor Gray Swan HiddenLayer Lasso Security Microsoft AI security Netskope NeuralTrust Noma Security NVIDIA NeMo Guardrails Operant AI Palo Alto Networks Prisma AIRS Pillar Security Proofpoint AI Security Qualys TotalAI SentinelOne Prompt Security Straiker Tenable One AI Exposure Trend Micro TrendAI Vision One WitnessAI Wiz Zenity Zscaler AI Security 35 Agent security A10 Networks TrojAI Adversa AI Arthur Aurascape Check Point AI Security Coralogix AI Guardrails Credo AI CrowdStrike Falcon AI security Cyera AI Guardian DeepKeep Dreadnode Enkrypt AI F5 AI Guardrails Fortinet FortiAIGate Giskard Gray Swan Harmonic Security HiddenLayer Holistic AI Knostic Microsoft AI security Mindgard Netskope Noma Security NVIDIA NeMo Guardrails Oligo Security Operant AI Palo Alto Networks Prisma AIRS Proofpoint AI Security SentinelOne Prompt Security Snyk Agent Scan Straiker Upwind WitnessAI Zenity 29 Red teaming A10 Networks TrojAI Adversa AI Alice (ActiveFence) Aurascape Check Point AI Security Cisco AI Defense Cyera AI Guardian DeepKeep Dreadnode Enkrypt AI F5 AI Guardrails Giskard Gray Swan HiddenLayer Holistic AI Lasso Security Mindgard Netskope Noma Security Palo Alto Networks Prisma AIRS Pillar Security Promptfoo (OpenAI) Qualys TotalAI SentinelOne Prompt Security Straiker Trend Micro TrendAI Vision One Upwind WitnessAI Zscaler AI Security 34 AI-SPM Arthur Aurascape Cato Networks AI Security Checkmarx LLM Scanner Cisco AI Defense Credo AI CrowdStrike Falcon AI security Cyera AI Guardian Fiddler AI Harmonic Security Holistic AI IBM Guardium Exposure Manager Knostic Lasso Security Microsoft AI security Mindgard NeuralTrust Oligo Security Operant AI Orca Security Palo Alto Networks Prisma AIRS Pillar Security PromptArmor Proofpoint AI Security Qualys TotalAI SentinelOne Prompt Security Straiker Tenable One AI Exposure Trend Micro TrendAI Vision One Upwind WitnessAI Wiz Zenity Zscaler AI Security 11 Model scanning Checkmarx LLM Scanner Cisco AI Defense CrowdStrike Falcon AI security DeepKeep HiddenLayer Knostic Noma Security Oligo Security Palo Alto Networks Prisma AIRS PromptArmor Snyk Agent Scan 18 Data protection Akamai Firewall for AI Alice (ActiveFence) Amazon Bedrock Guardrails Aurascape Cisco AI Defense Cloudflare AI Security for Apps Coralogix AI Guardrails Cyera AI Guardian Fiddler AI Fortinet FortiAIGate Giskard Google Cloud Model Armor IBM Guardium Exposure Manager Microsoft AI security Orca Security Proofpoint AI Security Upwind Wiz
One square per vendor, one column per capability the vendor documents. Checked 11 Nov 2026.
A10 Networks TrojAIYesYesYes———YesBought an AI security company2026-11-11
Adversa AI—YesYes—————2026-11-11
Akamai Firewall for AIYes————Yes——2026-11-11
Alice (ActiveFence)Yes—Yes——Yes——2026-11-11
Amazon Bedrock GuardrailsYes————Yes——2026-11-11
ArthurYesYes—Yes————2026-11-11
AurascapeYesYesYesYes—Yes——2026-11-11
Cato Networks AI SecurityYes——Yes———Bought an AI security company2026-11-11
Check Point AI SecurityYesYesYes————Bought an AI security company2026-11-11
Checkmarx LLM Scanner———YesYes———2026-11-11
Cisco AI DefenseYes—YesYesYesYes—Bought an AI security company2026-11-11
Cloudflare AI Security for AppsYes————Yes——2026-11-11
Coralogix AI GuardrailsYesYes———Yes—Bought an AI security company2026-11-11
Credo AI—Yes—Yes————2026-11-11
CrowdStrike Falcon AI security—Yes—YesYes——Bought an AI security company2026-11-11
Cyera AI Guardian—YesYesYes—Yes——2026-11-11
DeepKeepYesYesYes—Yes———2026-11-11
Dreadnode—YesYes———YesDeal pending2026-11-11
Enkrypt AIYesYesYes—————2026-11-11
F5 AI GuardrailsYesYesYes———YesBought an AI security company2026-11-11
Fiddler AIYes——Yes—YesYesDeal pending2026-11-11
Fortinet FortiAIGateYesYes———YesYesBought an AI security company2026-11-11
Giskard—YesYes——Yes——2026-11-11
Google Cloud Model ArmorYes————Yes——2026-11-11
Gray SwanYesYesYes—————2026-11-11
Harmonic Security—Yes—Yes————2026-11-11
HiddenLayerYesYesYes—Yes———2026-11-11
Holistic AI—YesYesYes————2026-11-11
IBM Guardium Exposure Manager———Yes—Yes——2026-11-11
Knostic—Yes—YesYes———2026-11-11
Lasso SecurityYes—YesYes————2026-11-11
Microsoft AI securityYesYes—Yes—Yes——2026-11-11
Mindgard—YesYesYes————2026-11-11
NetskopeYesYesYes———Yes—2026-11-11
NeuralTrustYes——Yes——Yes—2026-11-11
Noma SecurityYesYesYes—Yes———2026-11-11
NVIDIA NeMo GuardrailsYesYes————Yes—2026-11-11
Oligo Security—Yes—YesYes———2026-11-11
Operant AIYesYes—Yes————2026-11-11
Orca Security———Yes—Yes——2026-11-11
Palo Alto Networks Prisma AIRSYesYesYesYesYes——Bought an AI security company2026-11-11
Pillar SecurityYes—YesYes——Yes—2026-11-11
PromptArmor———YesYes———2026-11-11
Promptfoo (OpenAI)——Yes———YesOwned by a larger company2026-11-11
Proofpoint AI SecurityYesYes—Yes—Yes—Bought an AI security company2026-11-11
Qualys TotalAIYes—YesYes————2026-11-11
SentinelOne Prompt SecurityYesYesYesYes———Bought an AI security company2026-11-11
Snyk Agent Scan—Yes——Yes——Bought an AI security company2026-11-11
StraikerYesYesYesYes————2026-11-11
Tenable One AI ExposureYes——Yes————2026-11-11
Trend Micro TrendAI Vision OneYes—YesYes——Yes—2026-11-11
Upwind—YesYesYes—Yes——2026-11-11
WitnessAIYesYesYesYes————2026-11-11
WizYes——Yes—Yes—Owned by a larger company2026-11-11
ZenityYesYes—Yes————2026-11-11
Zscaler AI SecurityYes—YesYes———Bought an AI security company2026-11-11

Yes means the vendor documents the capability on its own pages. A dash means no source says so, not that the product lacks it. Click a header to sort, tick up to four rows to compare, and open a vendor for every field with its source.

Pick by the job you need done

Runtime guardrails 38
Inspect prompts and responses and block injection, jailbreaks and leaks before they land.
Agent security 35
Govern agents, MCP servers and tool calls: who an agent is, what it may touch, what it did.
AI red teaming 29
Attack your own models and agents before someone else does, with scored findings you can retest.
AI-SPM and AI-BOM 34
Find every model, agent and AI service in the estate, then check its posture and build the AI-BOM.
Data security for AI 18
Keep PII, secrets and training data out of prompts, responses and agent workflows.
Who bought whom 17
Many independent AI security startups of 2024 and 2025 now sit inside a platform vendor. The ledger names the buyer, the date and the page that says so.

Recent AI security deals

Full ledger
TargetBuyerStatusClosed or announcedSource
Dreadnode CrowdStrike Pending 3 Nov 2026 CrowdStrike press release
Fiddler AI CrowdStrike Pending 3 Nov 2026 CrowdStrike investor release
Virtue AI Fortinet Completed 17 Aug 2026 Help Net Security
TrojAI A10 Networks Completed 15 Jun 2026 A10 Networks Q2 2026 10-Q
Wiz Google Completed 11 Mar 2026 SecurityWeek
Promptfoo OpenAI Completed 9 Mar 2026 Promptfoo about page

What buyers ask before choosing an AI security vendor

What do AI security vendors actually sell?

Five jobs: runtime guardrails that filter prompts and responses, agent security for tools and MCP servers, red teaming that attacks your models before release, AI-SPM and AI-BOM for discovery and posture, and data protection for prompts and training data. Aurascape, Palo Alto Networks Prisma AIRS, SentinelOne Prompt Security, Straiker and WitnessAI document all four of the first four jobs. Use the filters above to find the vendors that cover the combination you need.

Which AI security startups have been acquired?

Palo Alto Networks completed its Protect AI deal on 22 July 2025. Check Point closed Lakera on 22 October 2025, and Cisco completed Robust Intelligence on 24 September 2024. SentinelOne closed Prompt Security on 5 September 2025 and CrowdStrike closed Pangea on 26 September 2025. F5 took CalypsoAI, Zscaler SPLX, Cato Aim Security, and Fortinet bought Virtue AI in August 2026. The full ledger lists 17 deals with sources. Two more are pending: CrowdStrike has agreed to buy Dreadnode and Fiddler AI.

Can I run AI guardrails in my own environment?

11 vendors document self-hosted, private-cloud or air-gapped deployment: A10 Networks TrojAI, Dreadnode, F5 AI Guardrails, Fiddler AI, Fortinet FortiAIGate, Netskope, NeuralTrust, NVIDIA NeMo Guardrails, Pillar Security, Promptfoo (OpenAI) and Trend Micro TrendAI Vision One. NVIDIA NeMo Guardrails is an open-source Python package you run yourself.

How fast are AI guardrails?

3 vendors publish a latency figure, all vendor claims rather than benchmarks: Check Point AI Security under 50 ms, Fiddler AI under 80 ms and NeuralTrust under 100 ms. Ask every vendor for p95 latency on your own prompt sizes before you sign.

Who is the best AI security vendor?

It depends on the job. For discovery and posture across a cloud estate, start with Wiz, Orca and Qualys TotalAI. For agent and MCP control, see the agent security list. For attack testing before launch, see red teaming. A platform vendor you already run, such as Prisma AIRS, Cisco AI Defense or Zscaler, wins on procurement; a specialist wins on depth.

How the table is built

Full methodology

Vendor pages first. Every cell comes from the vendor's own product page, docs or press release, or a filing. The small number beside a value opens that page; hover it for the date we read it.

Dated, re-checked. Each row shows when we last verified it, newest 11 Nov 2026. Seen a changed product or a new deal? Send the link to hello@aisecurityvendors.com and the row updates.