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Top ICS and OT companies 2026: Palo Alto Networks, Ontinue

We rank ICS and OT companies using a variety of factors, including protocol library depth, breadth of asset discovery, threat intelligence capabilities, AI and automation investments, and customer recommendation scores, to get you the perfect results for your company's needs.

4 companies ranked | Last updated: May 1, 2026

Which ICS and OT vendors should buyers compare first?

Enterprise buyers should compare Palo Alto Networks, Ontinue, and Viasat and other ranked ICS and OT vendors by fit, capability evidence, implementation risk, and procurement readiness. Palomarr ranks suppliers to help buyers move from a broad market scan to a practical shortlist.

For ICS and OT cybersecurity, top solutions offer robust protection and seamless integration. Palo Alto Networks and Fortinet excel in comprehensive, AI-driven security for enterprises. Ontinue is ideal for those optimizing Microsoft security, while Viasat provides secure connectivity for distributed operations.

  • Palo Alto Networks and Fortinet are best for large enterprises seeking comprehensive, AI-powered security due to their robust platforms and extensive threat detection capabilities. Before shortlisting, verify their integration capabilities with your existing OT infrastructure and the effectiveness of their AI in detecting nuanced industrial threats.

  • Ontinue is an excellent choice for organizations looking to optimize their Microsoft security investments within OT environments, leveraging its AI-first SecOps platform for tailored protection. Assess the effectiveness of their automated incident resolution and how seamlessly it integrates with your current Microsoft security tools.

  • Viasat is ideal for businesses requiring secure connectivity solutions for ICS and OT applications, offering integrated network security suitable for reliable data transmission and monitoring. Verify the security features of their connectivity solutions and their proven effectiveness in your specific industrial environment.

How companies earn their ranking

In the ICS and OT security space, Capability scores are driven by the depth of protocol support, the accuracy of asset discovery, and the robustness of vulnerability management. Innovation scores reflect investments in AI-driven threat detection, automation of incident response, and the development of proprietary threat intelligence.

Vendors who demonstrate a commitment to both comprehensive protection and cutting-edge research achieve the highest scores.Top-ranked companies in this category excel at providing solutions that are both effective and easy to integrate into existing industrial environments. They prioritize passive asset discovery, offer extensive protocol support, and invest in OT-specific threat intelligence.

To improve their ranking, vendors should focus on expanding their protocol libraries, enhancing their AI-driven detection capabilities, and building strong relationships with industrial organizations.

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Rankings

1
Best Overall Best Value
9.8 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.9 Innovation 9.7
2
Best for Enterprise
9.5 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.4 Innovation 9.6
3
9.1 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.2 Innovation 9.0
4
8.1 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 8.1 Innovation 8.1

Navigating the ICS and OT Cybersecurity Landscape

The convergence of IT and OT has introduced new complexities and vulnerabilities to industrial infrastructure, making specialized cybersecurity solutions essential. Historically isolated, OT systems now require robust protection against cyber threats due to their increased digital exposure for real-time data and predictive maintenance. This category evaluates solutions that secure critical industrial control systems, focusing on their ability to protect against sophisticated attacks while ensuring operational continuity and safety. We assess vendors based on their depth of protocol support, accuracy of asset discovery, robustness of vulnerability management, and investments in AI-driven threat detection and automated incident response. The goal is to help procurement professionals identify solutions that offer comprehensive protection and seamless integration into existing industrial environments, mitigating risks such as physical damage, operational downtime, and significant financial losses.

What matters in this category

Passive asset discovery and inventory

Accurate and comprehensive identification of all devices, including make, model, firmware, and serial number, is foundational for effective ICS/OT security. Without a clear inventory, organizations cannot protect what they don't know they have, leaving critical vulnerabilities exposed.

Evaluate how thoroughly each solution identifies and catalogs devices by 'listening' to network traffic without disrupting operations. Look for extensive detail in asset profiles and the ability to detect legacy and proprietary equipment.

AI-driven threat detection and incident response

The speed and sophistication of modern cyber threats necessitate advanced detection capabilities and automated responses. AI can identify anomalous behaviors indicative of attacks, while automation ensures rapid containment and remediation, minimizing downtime and damage.

Compare the efficacy of AI algorithms in identifying OT-specific threats and the level of automation in incident response workflows. Assess how well these systems integrate with existing security operations and provide actionable intelligence.

Protocol support and OT-specific threat intelligence

Industrial environments rely on unique communication protocols. A robust security solution must understand and interpret these protocols to detect malicious activity. OT-specific threat intelligence provides context on vulnerabilities and attack methods relevant to industrial systems.

Examine the breadth of industrial protocols supported by each vendor, including legacy and proprietary ones. Investigate the sources and timeliness of their OT threat intelligence and how it informs their detection and prevention capabilities.

Integration with existing industrial environments

Seamless integration is crucial to avoid disrupting sensitive industrial operations. Security tools must be 'OT-aware' to prevent unintended crashes of legacy equipment and to provide unified visibility across IT and OT networks.

Assess the ease of deployment and integration with your current ICS/OT infrastructure. Verify that solutions can operate without impacting the performance or stability of critical control systems and that they offer unified management across your security landscape.

How to shortlist

Comprehensive, AI-powered security for large enterprises

Verify the depth of integration with your specific OT infrastructure and the effectiveness of their AI in detecting nuanced industrial threats. Both offer premium solutions, so ensure the advanced capabilities align with your budget and security requirements.

Optimizing Microsoft security investments in OT environments

Confirm Ontinue's automated incident resolution capabilities and its seamless integration with your existing Microsoft security tools. Assess how well their tailored protection aligns with your unique operational technology environment.

Secure connectivity for distributed industrial operations

Evaluate the security features embedded within Viasat's connectivity solutions and their proven effectiveness in industrial settings. Verify that their moderate pricing and implementation align with your SMB or mid-market needs for reliable and secure data transmission.

Meet the leaders

Discover what makes each company unique. Use filters to narrow by your needs, or Find your perfect match to get personalized rankings tailored to your exact requirements.

I

97% match

Website

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Key differentiators

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Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Palo Alto Networks excels in ICS and OT with its AI-powered security platform that integrates threat intelligence and incident response, ensuring robust protection against cyber threats.

Pricing posture

Premium pricing level indicates a higher investment for advanced capabilities.

Implementation/integration fit

Moderate implementation difficulty suits large enterprises and mid-market customers needing comprehensive security solutions.

What to verify

Verify integration capabilities with existing systems and the effectiveness of incident response services.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

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Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Ontinue's AI-first SecOps platform provides tailored protection for ICS and OT environments, automating incident resolution and optimizing Microsoft security investments.

Pricing posture

Moderate pricing level aligns with competitive offerings for mid-market and enterprise customers.

Implementation/integration fit

Moderate implementation difficulty is suitable for large enterprises leveraging Microsoft Defender.

What to verify

Verify the effectiveness of automated incident resolution and integration with existing security tools.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

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Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Viasat provides connectivity solutions with integrated network security, making it suitable for ICS and OT applications that require reliable data transmission and monitoring.

Pricing posture

Moderate pricing level is accessible for SMBs and mid-market customers seeking reliable connectivity.

Implementation/integration fit

Moderate implementation difficulty is appropriate for businesses needing flexible and scalable connectivity solutions.

What to verify

Verify the security features of their connectivity solutions and their effectiveness in industrial environments.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

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Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Fortinet's AI-driven security solutions for ICS and OT deliver predictive threat detection and unified security across networks, appealing to enterprises needing comprehensive protection.

Pricing posture

Premium pricing reflects the advanced capabilities of their security offerings.

Implementation/integration fit

Moderate implementation difficulty fits large enterprises with diverse security needs across various environments.

What to verify

Verify the integration of Fortinet's solutions with existing infrastructure and their effectiveness in OT environments.

How Palomarr ranks ICS and OT companies

Our ranking of ICS and OT cybersecurity solutions is based on a comprehensive evaluation of each company's capabilities and innovation within the category. Capability scores reflect the depth of protocol support, accuracy of asset discovery, and robustness of vulnerability management. Innovation scores consider investments in AI-driven threat detection, automation of incident response, and proprietary threat intelligence. While this ranking provides a strong indication of market leadership, it is crucial for buyers to conduct their own due diligence. We recommend verifying specific integration capabilities, assessing the effectiveness of AI in your unique environment, and confirming alignment with your budget and operational requirements before making a final decision.

Common buyer questions

What is the difference between IT and OT cybersecurity?

IT cybersecurity focuses on protecting data and information systems from threats like data breaches and malware, prioritizing confidentiality, integrity, and availability. OT cybersecurity, on the other hand, protects industrial control systems and physical processes, prioritizing safety, reliability, and availability, as disruptions can lead to physical damage or operational shutdowns.

Why is passive asset discovery important in ICS/OT security?

Passive asset discovery is crucial because it identifies all devices in an industrial network by 'listening' to network traffic without actively probing them. This non-intrusive method prevents disruption to sensitive legacy equipment, which can be vulnerable to standard IT scanning packets, ensuring operational continuity while building a comprehensive asset inventory.

How does AI enhance ICS/OT cybersecurity?

AI enhances ICS/OT cybersecurity by enabling predictive threat detection and automating incident response. It analyzes vast amounts of operational data to identify anomalous behaviors and potential threats that human analysts might miss, allowing for faster containment and remediation of attacks, thereby minimizing downtime and potential physical damage.

What are the key risks of inadequate ICS/OT security?

Inadequate ICS/OT security poses significant risks, including operational blindness to vulnerabilities, physical damage to industrial assets, and catastrophic downtime. It can also lead to substantial financial losses from lost production, regulatory penalties, and reputational damage, with potential personal liability for executives in critical infrastructure sectors.

See how ICS and OT suppliers stack up

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Capabilities Innovation

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