AI security companies

Acium provides an AI security and governance platform that makes AI usage visible, secure, and governed across users, browsers, agents, and devices.

Agentic Fabriq sells a control layer for AI agents.

Sets standards, audits and insures frontier AI systems and agents for security, safety and reliability.

altaniche is a security practice that helps organisations adopt AI safely.

Arcjet provides runtime security for AI agents, enforcing policies at the action boundary.

Capsule Security provides a runtime security platform that monitors and intervenes in AI agent behavior.

Enoki Labs makes Enoki, a platform that attacks AI agents to find security and safety weaknesses.

Fendr provides AI usage controls for businesses.

Ferentin provides runtime governance for AI agents.

Harmonic Security provides software that discovers, classifies and controls how employees use AI tools at work.

HiddenLayer provides a security platform for AI applications, protecting against adversarial threats.

Lakera provides security software that protects enterprise AI applications from prompt attacks and data leakage.

Lasso Security provides a platform to secure AI agents and applications at enterprise scale.

Noma Security provides a platform to discover, govern, test, and protect AI applications and agents.

Provides a trust layer that lets organisations run AI on sensitive data with hardware-enforced governance and verifiable proof.

OpenOrigins provides trust infrastructure for the AI internet.

Outerlimit provides a security and authorization layer for agentic AI systems.

Pillar Security provides a platform to discover, test, secure and govern AI agents across organisations.

Prompt Security provides an AI security platform that protects enterprise AI usage, applications, and agents.

Open-source command-line tool that reads AI coding agent transcripts to find credential leaks and irreversible actions.

Reality Defender provides deepfake detection to stop AI-generated media from causing harm.

Reco provides an AI agent security platform that maps, governs, and protects AI agents across enterprise applications.

SealGate provides a security gateway that governs how AI agents access company data.

Tragentics is a security and operations layer for AI agents that customers already run on their own infrastructure.

Provides an AI security engineer that finds and fixes software risks using coding agents.

VeriSwarm provides a trust layer for AI agents.

Virtue AI provides an enterprise AI safety platform for securing AI agents and applications.

Zenity provides security and governance for AI agents and low-code applications.

Akto provides a platform to secure AI agents, MCPs, and LLMs for enterprises.

BlueRock provides observability and guardrails for AI agents in production.

Cantina provides an agentic security platform that uses autonomous AI agents to detect, respond to, and fix security issues.

GetReal Security provides deepfake detection and identity verification software for enterprises.

Mountain Theory provides an execution-layer security system that checks and controls autonomous AI actions before they run.

Quint monitors AI agents at the operating system level and compares their actions against what they declared.

Builds cryptographic validation, information intelligence, regulatory assurance and sovereign AI products for defence and government.

Straiker provides security teams with tools to discover, test, and defend AI agents in enterprises.

Self-hosted gateway that inspects and governs AI agent traffic inside a company's own network.

Vireo Sentinel provides browser-based AI governance to monitor and protect sensitive data.

Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats.

Tempe, Arizona-headquartered offensive security firm and Black Hat / DEF CON regulars, makers of the Cosmos continuous attack surface management platform.

Tines provides a secure environment where teams can build AI agents, applications and automations.

Denver-based offensive security boutique with a community-first red team culture. Home of PTES co-authors and the Continuous Red Team retainer.

Denver-based boutique pen testing firm with senior-only testers. Personalised engagements across penetration testing, red teaming, and vulnerability management.

Toronto-based PTaaS provider delivering continuous penetration testing for Canadian fintech, SaaS, and OSFI-regulated organisations.

AppOmni provides a platform to secure SaaS applications and AI environments for enterprises.

Employee-owned research firm testing embedded systems, including vehicle infotainment, telematics units and CAN networks.

Ettlingen consultancy pentesting vehicles, ADAS, gateways, infotainment and on-board chargers, plus R155 CSMS consulting.

BigID provides a data intelligence platform for discovering, classifying, and governing enterprise data and AI.

Provides cybersecurity awareness, AI readiness, and compliance training to employees through managed service providers.

CAI Technology is a Romanian company that builds specialised AI tools for regulated sectors.

Cequence Security protects applications, APIs, and AI agents from attacks and abuse.

UK security consultancy doing threat modelling, training and research for connected vehicles, IoT and mobile products.

Cyberhaven provides a data security platform that traces data lineage to protect information across human and AI workflows.

CyberSentien provides a compliance assurance engine that assesses organisations against multiple security and AI governance frameworks.

Cyera provides a data security platform that discovers and protects sensitive data across cloud environments.

Cymphony provides an AI-native workforce security platform that maps identities, data, and permissions to reduce risk.

Darwinium provides edge-based intent intelligence to prevent digital fraud and abuse across customer journeys.

DataBahn provides an agentic data control plane for managing and optimizing enterprise telemetry.

Diopter AI sells software that watches live video and voice calls for signs of AI-driven social engineering.

Drata provides a platform that automates security compliance, risk management and trust assurance for companies.

Telemetry pipelines that route, enrich and transform security and observability data to SIEMs and other destinations, plus AI agents for site reliability work.

Endor Labs provides an agentic application security platform for AI-generated and open source code.

Harness provides an AI-native software delivery platform for DevOps, testing, security, and cost optimization.

Immersive Labs sells a platform called Immersive One that helps organisations show how ready they are for cyber threats.

KnowBe4 provides a platform for security awareness training and AI agent security to reduce human risk.

Legit Security provides application security for AI-generated code and software development.

Mend.io provides application security and AI security software for code and AI systems.

Netarx provides real-time deepfake detection across video, voice, email and messaging for businesses.

Obsidian Security provides security for third-party applications and AI agents.

Provides a platform for managing cryptographic trust across devices, systems and AI.

Audit, risk and compliance software, formerly AuditBoard, with controls management, cyber risk management, third-party risk, regulatory compliance and AI governance products.

Paravision builds identity AI software.

Pindrop provides deepfake detection and identity verification for voice and video interactions.

Private.Me provides identity infrastructure for AI agents and machine-to-machine systems.

Salt Security provides a platform to discover and secure AI agents, MCP servers, and APIs.

Saviynt provides identity governance and security for human and non-human identities across applications and data.

Securiti provides a platform for data security, privacy, governance and compliance across hybrid multicloud environments.

Sentra provides data security solutions to discover and protect sensitive data from AI applications.

Sevii provides an autonomous defense and remediation platform that stops cyber adversaries without human intervention.

Siemba provides autonomous and expert-led penetration testing for security teams.

Soken is a Web3 services firm based in London.

Sonar provides a platform that verifies code quality and security for developers.

Sysdig provides cloud security built on the open-source Falco project, with an emphasis on runtime detection inside running workloads.

Upwind provides a runtime-powered cloud security platform that uses live workload behaviour to prioritise posture findings.

Wiz provides a cloud and AI security platform that connects code, cloud, and runtime for risk reduction and threat response.

42Crunch provides security governance for MCP servers and APIs used by AI agents.

Ansvar Systems AB provides evidence and validation infrastructure for AI agents in regulated work.

Provides a data and AI security platform built on confidential computing to protect data in use.

MarkAny develops document security, forgery prevention, content protection, and AI video surveillance software.

Third-party management and tech risk and compliance software, alongside privacy automation, consent management and AI governance tools.

TigerByte Cyber provides cyber hardening for AI and edge devices in mission-critical environments.

Wallarm provides an AI security and API security platform for enterprises running AI on AWS.