Top Industrial Control System (ICS) Security Companies

The industrial control system (ICS) security market size is projected to grow from USD 15.35 billion in 2025 to USD 32.89 billion by 2030 at a compound annual growth rate (CAGR) of 16.5% during the forecast period. The rise of IIoT and smart factory technologies is transforming traditional manufacturing and industrial processes into connected systems. Existing setups that include devices, actuators, and sensors communicating across networks can now be linked to improve operational efficiency and data visibility. However, this connectivity also opens up multiple opportunities for cyber attackers to infiltrate networks, increasing the risks of intrusions and data breaches. Securing communication between devices and systems, along with managing authentication and network segmentation, has become essential for ICS security.

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What is industrial control system (ICS) security?

According to MarketsandMarkets, “ICS security refers to the protection of industrial control systems that manage critical infrastructure like power plants, manufacturing lines, and water systems. It involves safeguarding hardware, software, and network components from cyber threats. The goal is to ensure operational continuity, safety, and data integrity. ICS security combines traditional IT practices with OT-specific protections. It also addresses unique challenges like legacy systems, limited downtime, and real-time operational requirements.”

Top Industrial Control Systems (ICS) Security Companies Include:

• Cisco (US)
• ABB (Switzerland)
• Lockheed Martin (US)
• Fortinet (US)
• Honeywell (US)

The industrial control system (ICS) security market is led by some of the globally established players, such as Cisco (US), ABB (Switzerland), Lockheed Martin (US), Fortinet (US), Honeywell (US), Palo Alto Networks (US), BAE Systems (UK), RTX (US), Trellix (US), Check Point (Israel), Darktrace (UK), Kaspersky Lab (Russia), Tenable (US), Belden (US), Sophos (UK), CyberArk (US), Claroty (US), Dragos (US), Nozomi Networks (US), Cyberbit (US), Forescout (US), Radiflow (Israel), Verve Industrial Protection (US), Xage Security (US), and Positive Technology (US). Partnerships, agreements, collaborations, acquisitions, and product developments are some of the growth strategies adopted by these players to increase their market presence.

Honeywell (US) is a diversified industrial technology company. It operates in aerospace, building technologies, performance materials, and industrial automation. It is deeply involved in the development of automation and digitalization required in critical infrastructures and targeted manufacturing environments. In the ICS security market, Honeywell competes with offerings and services that protect OT systems from evolving cyber threats. These offerings are focused on industrial control networks for real-time monitoring and threat detection, secure remote access controls, and system hardening. The company also offers managed security services, risk and compliance consultancy, and OT cybersecurity training to create a whole. These services address the unique needs of industrial environments so that an organization can enhance visibility of its assets, mitigate its vulnerabilities, and automatically comply with regulations across sites distributed worldwide.

Cisco (US) is a global technology corporation offering enterprises and service providers around the world networking, cybersecurity, cloud, and software capabilities. Cisco enables digital transformation by providing secure, scalable infrastructure in both IT and OT environments. In the ICS security market, Cisco provides multiple market alternative solutions, including ruggedized security appliances for industrial environments, firewalls specifically designed to recognize industrial protocols, centralized monitoring and management of OT networks, and anomaly detection for ICS traffic to identify anomalous activities. Cisco also provides integrated platforms that correlate IT and OT data to mitigate responses to incidents faster and provide better protection for critical infrastructure.

ABB (Switzerland) is a global technology leader with a significant presence in the Industrial Control Systems (ICS) security market. Leveraging its deep expertise in automation, electrification, and digitalization, ABB provides comprehensive cybersecurity solutions tailored for critical infrastructure and industrial environments. Its offerings include secure control systems, threat detection, network segmentation, and lifecycle cybersecurity services designed to protect operational technology (OT) assets. ABB integrates cybersecurity into its industrial automation portfolio, including systems like ABB Ability™, to ensure resilient and compliant operations across sectors such as energy, manufacturing, and utilities.

Lockheed Martin (US) is a major defense and aerospace contractor that also plays a strategic role in the Industrial Control Systems (ICS) security market. Drawing on its extensive cybersecurity and national security expertise, the company offers advanced ICS/OT security solutions focused on protecting critical infrastructure from cyber threats. Lockheed Martin provides services such as threat intelligence, intrusion detection, vulnerability assessments, and custom cyber defense strategies tailored for industrial environments. Its offerings support government agencies, utilities, and private sector clients in securing complex, mission-critical control systems against evolving cyber risks.

Fortinet (US) is a leading cybersecurity company that actively supports the Industrial Control Systems (ICS) security market with its robust portfolio of integrated security solutions. Known for its FortiGate next-generation firewalls and Fortinet Security Fabric platform, the company provides specialized tools for securing operational technology (OT) environments, including network segmentation, real-time threat detection, and secure remote access. Fortinet addresses the unique challenges of ICS by offering visibility, control, and protection across IT and OT networks, serving industries such as manufacturing, energy, transportation, and utilities to safeguard critical infrastructure against cyber threats.

Market Ranking

The industrial control system (ICS) security market is highly competitive, with five major players— Cisco, Honeywell, Palo Alto Networks, Tenable, and Fortinet—collectively accounting for approximately 25.1 % of the total market share. Cisco is securing converged IT/OT environments by embedding advanced network segmentation, zero trust access, and deep visibility across industrial protocols. Honeywell empowers operators with its Cyber Insights platform, delivering contextual threat intelligence and asset-centric analytics to detect vulnerabilities before they are exploited. Palo Alto Networks strengthens ICS defenses through its AI-driven threat prevention, deep packet inspection for OT traffic, and unified security architecture that spans edge to cloud. Tenable offers continuous risk-based vulnerability management tailored for industrial assets, enabling security teams to prioritize remediation based on real-time OT threat context. Fortinet delivers integrated OT security via its ruggedized appliances, protocol-aware firewalls, and centralized fabric management to defend critical control systems from evolving cyber risks.

Related Reports:

Industrial Control System (ICS) Security Market by Offering (Solutions, Services), Solution (Encryption, SIEM, Firewall, IAM, DDoS Mitigation, Antivirus), Security Type (Network, Endpoint, Database), Vertical, and Region - Global Forecast to 2030

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