OT & IoT Security Companies

Argus Cyber Security provides automotive cybersecurity software and managed vehicle security operations center services to leading automobile manufacturers. The company offers embedded intrusion detection systems, software update verification, and compliance management solutions engineered to protect modern software-defined vehicles from cyber disruption. Original equipment manufacturers partner with Argus to secure connected vehicle components and maintain compliance with global automotive cybersecurity standards.

Armis delivers an agentless cyber exposure management platform that discovers and monitors every connected enterprise asset. Operating across IT hardware, cloud instances, IoT gadgets, and medical devices, the system analyzes behavior to uncover risks and anomalous activity. Organizations utilize its automated risk scoring and contextual intelligence to enforce access controls, isolate vulnerable hardware, and reduce overall attack surface exposure.

Asimily provides connected medical device and Internet of Things risk management solutions tailored for healthcare organizations and medical hospitals. The platform continuously catalogs connected clinical devices, calculates clinical exploitability scores for vulnerabilities, and prescribes targeted microsegmentation policies. Healthcare systems implement Asimily to safeguard patient care delivery, protect confidential medical records, and defend vulnerable medical technology against disruptive ransomware exploits.

Check Point Software Technologies provides AI-powered, cloud-delivered cyber security solutions including Quantum network firewalls, CloudGuard cloud security, and Harmony secure workspace tools.

Cisco Security offers end-to-end security architectures including Cisco Secure Endpoint, Duo multi-factor authentication, Umbrella cloud security, and Talos threat intelligence.

Claroty secures cyber-physical systems across industrial manufacturing, healthcare, and commercial enterprise facilities. Its software suite delivers agentless asset discovery, vulnerability management, and threat detection for operational technology, IoT devices, and connected medical equipment. Security teams deploy its zero-trust network access and secure remote connection tools to enforce strict communication policies and prevent operational disruptions in physical environments.

ColorTokens provides an enterprise microsegmentation platform called Xshield, helping organizations adopt proactive zero-trust network architectures. The platform visualizes traffic flows across traditional data centers, public cloud instances, and operational technology devices to identify unauthorized lateral pathways. Security teams enforce granular isolation rules to contain cyberattacks, stop ransomware proliferation, and safeguard critical business assets without requiring disruptive network hardware changes.

Cybellum develops product security lifecycle management software that safeguards automotive control systems, medical equipment, and industrial hardware devices. Utilizing Cyber Digital Twin technology, the platform scans compiled software packages to generate comprehensive software bills of materials and evaluate vulnerability risks continuously. Global original equipment manufacturers utilize Cybellum to achieve international cybersecurity compliance and secure connected vehicles against digital attacks.

CyberEye specializes in critical infrastructure protection, Internet of Things security testing, and advanced cyber threat intelligence solutions. The organization conducts firmware vulnerability analysis, embedded device assessments, and industrial control systems audits to safeguard smart utilities and connected ecosystems. By delivering offensive security research and specialized defense training, CyberEye helps organizations mitigate cyber risk across complex physical and digital interconnected environments.

Cynerio provides connected healthcare cybersecurity software engineered to safeguard clinical hospital environments, medical devices, and health network infrastructure. The platform pairs passive network behavioral profiling with automated network segmentation to isolate infected devices without interrupting patient care. Healthcare security operations implement Cynerio to defend against ransomware attacks, maintain clinical workflow continuity, and safeguard patient data privacy across hospital campus facilities.

DeepSeas is a managed detection and response provider that delivers round-the-clock threat monitoring, security analytics, and incident containment across information technology and operational technology environments. The company correlates telemetry across endpoints, identity systems, and cloud workloads to identify sophisticated cyber threats. DeepSeas leverages experienced security analysts and automation to isolate compromised systems, perform digital forensics, and guide rapid enterprise recovery.

DigiCert provides digital trust and automated public key infrastructure solutions for websites, connected devices, and corporate software. Its DigiCert ONE platform orchestrates certificate issuance, automated code signing, secure email identification, and IoT device authentication. Enterprises leverage its cryptographic management capabilities to ensure integrity across digital interactions, establish trusted communications, and prepare corporate encryption infrastructures for post-quantum cryptographic standards.

Dragos specializes in cybersecurity solutions built specifically for industrial control systems and operational technology environments. The Dragos Platform delivers continuous asset visibility, protocol-level anomaly detection, and automated threat analytics across critical infrastructure. Its dedicated intelligence team monitors adversary groups targeting electric grids, manufacturing facilities, and oil pipelines to provide tailored defensive playbooks and emergency incident response.

Elisity provides identity-based microsegmentation solutions for enterprise campus, data center, and operational technology networks. The platform discovers connected assets, learns operational traffic flows, and applies dynamic access restrictions directly at switch access layers without requiring network redesigns. Security engineers use Elisity to isolate unmanaged medical devices, prevent lateral attack movement, and enforce least-privilege security policies across complex converged enterprise environments.

Finite State provides connected device product security and software supply chain risk management platforms for medical, industrial, and consumer device manufacturers. The solution analyzes binary code and embedded firmware to generate software bills of materials and identify exploitable vulnerabilities before shipment. Engineering teams rely on Finite State to comply with federal device security requirements and protect connected firmware against cyber exploitation.

Forescout delivers automated cybersecurity and network access control across IT, IoT, cloud, and operational technology networks. Its platform continuously discovers connected devices without requiring client agents, identifying compliance posture and security anomalies. Network administrators enforce dynamic network segmentation policies, restrict unmanaged endpoints, and trigger automated quarantine procedures to isolate compromised equipment and stop lateral adversary movements.

Fortinet is a global cybersecurity leader delivering converged networking and security through its Fortinet Security Fabric, FortiGate Next-Generation Firewalls, secure SD-WAN, and zero trust architectures.

Gatewatcher develops network detection and response platforms certified by European cybersecurity agencies to protect critical national infrastructure and enterprises. The technology performs real-time encrypted traffic inspection, network mapping, and behavioral anomaly detection to uncover stealthy adversary presence within internal systems. By generating actionable threat intelligence, Gatewatcher helps security operations centers identify advanced persistent threats and respond to network breaches rapidly.

Genians delivers next-generation Network Access Control and zero trust network security solutions that discover, profile, and secure all connected network devices. The platform continuously monitors IT, OT, and IoT endpoints, enforcing granular access control policies without requiring complex infrastructure alterations. Organizations deploy Genians to gain comprehensive visibility into connected devices, isolate unauthorized hardware, and prevent lateral threat movement across networks.

GlobalSign is a trusted certificate authority and leading security identity provider delivering automated public key infrastructure, digital signatures, and IoT device credentialing. The company manages millions of digital certificates enabling encrypted web communications, code signing authenticity, and secure email encryption for global enterprises. Enterprises deploy GlobalSign to automate certificate lifecycles, eliminate expired certificate downtime, and secure interconnected machine-to-machine transactions.

Karamba Security provides embedded cybersecurity and runtime integrity software designed for connected vehicles, industrial controllers, and Internet of Things hardware. Its automated solutions harden electronic control unit binaries, prevent unauthorized code modifications, and detect runtime anomalous activities without requiring network connectivity. Automotive manufacturers implement Karamba Security to comply with UN R155 regulations and protect commercial vehicle fleets from cyber tampering.

Kudelski Security delivers specialized cybersecurity advisory services, managed detection and response, and operational technology defense to international enterprises. The firm provides blockchain auditing, advanced hardware security evaluation, and customized cryptographic engineering. With security operations centers in Europe and the Americas, its analysts track targeted threats, remediate security incidents, and secure complex industrial networks against exploitation.

Mission Secure provides operational technology cybersecurity solutions tailored to protect industrial control systems, critical infrastructure, and defense assets. The platform monitors physical signal levels, programmable logic controllers, and supervisory networks to detect and block malicious operational intrusions. Energy producers and maritime operators rely on Mission Secure to safeguard industrial environments from cyber sabotage and maintain uncompromised continuous operational uptime.

NetRise delivers comprehensive firmware and embedded device security analysis, illuminating invisible software risks across IoT, industrial control, and automotive equipment. The automated platform extracts binary firmware images to generate precise software bills of materials, uncovering known vulnerabilities, misconfigurations, and embedded cryptographic keys. Critical infrastructure operators utilize NetRise to protect interconnected device ecosystems and satisfy emerging government software supply chain requirements.

Nozomi Networks provides real-time visibility, asset intelligence, and anomaly detection for operational technology and IoT networks. Its platform decodes complex industrial protocols, uncovers hidden network vulnerabilities, and correlates telemetry to expose potential cyberattacks. Operators in energy, utilities, and manufacturing leverage its centralized console to track connected endpoints, accelerate incident investigation, and maintain continuous operational security posture.

OPSWAT protects critical infrastructure and industrial environments through deep content disarm and reconstruction, multi-scanning engines, and peripheral device kiosks. Its MetaDefender platform neutralizes hidden document malware by sanitizing file components before transferring them into secure operational networks. Critical energy, defense, and manufacturing facilities rely on OPSWAT to secure transient media, inspect enterprise supply chain files, and insulate air-gapped industrial networks against compromise.

OTORIO delivers industrial cybersecurity posture management and cyber risk assessment software engineered for industrial and operational technology facilities. The platform correlates operational asset metadata, safety architectures, and exposure vectors into actionable mitigation plans to prevent production disruption. Manufacturing conglomerates deploy OTORIO to bridge security visibility between corporate security centers and plant operations while adhering to IEC 62443 standards.

Palo Alto Networks is a global cybersecurity leader offering Next-Generation Firewalls (Strata), cloud-native security platforms (Prisma Cloud), and AI-powered security operations and XDR (Cortex).

Payatu Technologies is an offensive cybersecurity research and security assessment firm specializing in IoT hardware security, connected vehicles, and cloud applications. Its security engineers conduct chip-level hardware penetration testing, firmware extraction, radio protocol assessments, and enterprise cloud vulnerability reviews. Through extensive practical research, Payatu helps global manufacturers and technology vendors discover and remediate complex vulnerabilities before products reach consumer markets.

Penta Security is a cybersecurity leader in web application security, enterprise data encryption, and automotive IoT protection across the Asia-Pacific region. Its flagship WAPPLES intelligent web application firewall employs logic-based analysis to neutralize zero-day exploits and malicious web attacks. Enterprise customers trust Penta Security to safeguard critical databases, encrypt regulated transaction data, and protect connected vehicle platforms.

Phosphorus Cybersecurity delivers automated security management software for enterprise Internet of Things, operational technology, and connected smart building devices. The platform automates credential rotation, firmware updates, and vulnerability discovery across thousands of connected headless devices without manual intervention. Large enterprises implement Phosphorus to eliminate default vendor passwords, patch firmware weaknesses, and stop attackers from using hardware assets as lateral breach vectors.

PQShield delivers post-quantum cryptographic software and semiconductor intellectual property solutions to protect hardware chips, connected cars, and mobile applications. The company develops mathematical cryptographic algorithms selected by national standards bodies, defending microchips against side-channel analysis and quantum computing threats. Global semiconductor foundries license PQShield cryptographic intellectual property to embed quantum-resistant digital encryption directly into modern microcontrollers.

Radiflow delivers industrial cyber risk management and operational asset protection platforms for energy utilities, manufacturing, and critical infrastructure. The platform discovers industrial control devices, models threat probabilities, and simulates mitigation measures to help plant managers prioritize risk reduction investments. Critical infrastructure operators utilize Radiflow to achieve operational network visibility, satisfy compliance mandates, and detect anomalous industrial communications reliably.

RunZero provides cyber asset attack surface management and active network discovery solutions. Using proprietary uncredentialed scanning technology, the platform discovers IT equipment, OT controllers, IoT sensors, and cloud services without crashing fragile operational devices. IT operations and cybersecurity teams deploy RunZero to uncover shadow hardware, locate unmanaged devices, verify endpoint software coverage, and eliminate dangerous blind spots across distributed networks.

Sepio delivers hardware asset risk management and physical layer visibility software that defends enterprise environments against rogue devices and manipulated peripherals. By analyzing physical layer behavior rather than network packet data, Sepio discovers hidden network implants, malicious USB hardware, and unauthorized shadow devices instantly. Defense agencies and financial institutions utilize Sepio to enforce complete hardware zero trust and eliminate physical cyber threat vectors.

Sepio Systems provides physical layer hardware asset risk management and rogue device mitigation technology for corporate IT and operational environments. Operating by analyzing physical hardware layer fingerprints, the software identifies unauthorized peripherals, malicious keystroke injection cables, and spoofed network devices without inspecting network traffic. Financial institutions and critical infrastructure operators implement Sepio Systems to prevent rogue hardware intrusions and secure physical USB and network ports.

Shodan operates a global search engine indexing Internet-connected devices, industrial control systems, and network services worldwide. The platform catalogs open ports, banner information, and device metadata across public IPv4 and IPv6 address ranges. Security researchers and enterprise defense teams leverage Shodan to monitor corporate IP blocks, identify accidental exposure of supervisory control systems, and trace internet-wide technological vulnerability proliferation.

Sternum offers an autonomous on-device security and observability platform designed specifically for connected Internet of Things and medical device technologies. Operating at the binary level, Sternum injects lightweight runtime integrity controls directly into firmware code, preventing memory manipulation attacks and zero-day vulnerabilities in real time. Device manufacturers rely on Sternum to ensure device resilience, achieve regulatory certification, and detect anomalous device behaviors.

Stormshield is a European cybersecurity vendor providing unified threat management firewalls, endpoint security software, and industrial network defense appliances. Certified under European government standards, the company helps defense, public sector, and industrial clients safeguard confidential communications. Its ruggedized hardware protects operational technology protocols, prevents unauthorized workstation modifications, and ensures data sovereignty for organizations operating under stringent regulatory cybersecurity requirements.

Tenable is the Exposure Management company and creator of Nessus, helping organizations assess and reduce cyber risk across IT assets, cloud workloads, active directory configurations, and web apps.

TXOne Networks specializes in operational technology zero-trust cybersecurity, protecting mission-critical industrial networks and connected production equipment. The company provides industrial next-generation firewalls, operational inspection consoles, and specialized endpoint agents designed to secure legacy operational technology assets without disrupting continuous manufacturing. Global semiconductor and automotive plants implement TXOne Networks to stop malware outbreaks and defend smart factories.

Upstream Security offers a cloud-based cybersecurity and data analytics platform purpose-built for connected vehicles, automotive telematics, and smart mobility ecosystems. The platform ingests telemetry feeds from automotive fleets to identify cyber threats, anomalous driver behaviors, and smart mobility fraud patterns in real time. Global automotive manufacturers partner with Upstream to secure vehicle operations and comply with international vehicle cyber safety mandates.

Viakoo offers automated cyber hygiene and device management software for enterprise physical security systems, cameras, and Internet of Things infrastructures. The platform validates device uptime, updates vulnerable device firmware, and manages digital certificates across connected hardware fleets automatically. Organizations use Viakoo to maintain security video and access control reliability, prevent network intrusions, and satisfy internal compliance policies.

WALLIX delivers privileged access management and zero-trust remote access solutions designed for enterprise IT environments and industrial operational technology installations. The WALLIX Bastion platform secures privileged passwords, audits administrative sessions, and controls external vendor access into industrial networks. Industrial operators, healthcare facilities, and financial firms implement WALLIX to eliminate identity-based attack vectors, mitigate ransomware risks, and secure critical manufacturing infrastructure.