US Industrial Control System (ICS) Security Market

The industrial control system (ICS) security market in the US is projected to grow from USD 3.09 billion in 2025 to USD 6.25 billion by 2030 at a compound annual growth rate (CAGR) of 15.2% during the forecast period.

Extensive use of legacy industrial control infrastructure remains common across US industrial environments. These environments were built to support continuous operations and include limited security protection. Growing connectivity with IT networks and remote access increases cyber risk across these environments. As reliance on older infrastructure continues, this is driving demand for ICS security measures such as network segmentation, intrusion detection, and continuous monitoring.

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 protection. It also addresses unique challenges like legacy systems, limited downtime, and real-time operational requirements”.

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Competitive overview:

The US industrial control system (ICS) security market is led by some of the globally established players, such as Cisco (US), Lockheed Martin (US), Fortinet (US), Honeywell (US), Palo Alto Networks (US), RTX (US), Trellix (US), Tenable (US), Belden (US), CyberArk (US), Claroty (US), Dragos (US), Nozomi Networks (US), Cyberbit (US), and Forescout (US). Partnerships, agreements, collaborations, acquisitions, and product developments are various growth strategies these players use to increase their market presence.

Honeywell (US) is a diversified industrial technology company with operations spanning aerospace, energy, building technologies, and industrial automation. The company plays an active role in the modernization of critical infrastructure across the US. In the US ICS security market, Honeywell supports utilities, manufacturing facilities, and industrial operators by protecting OT systems from cyber threats that target national infrastructure. Its portfolio includes real-time monitoring of control networks, threat detection tailored for OT traffic, secure remote access controls, and system hardening designed for aging OT environments. Honeywell also provides managed OT security services, compliance and risk management consulting aligned with US regulations, and OT focused workforce training. These capabilities improve operational visibility, reduce security gaps, and support compliance across various industrial sites.

Cisco (US) is a global technology company that provides networking, cybersecurity, cloud, and industrial connectivity solutions for US enterprises and critical infrastructure operators. In the US ICS security market, Cisco supports secure integration between IT and OT environments. It offers industrial firewalls, secure routers, network segmentation tools, and centralized monitoring for utilities, manufacturing, and energy facilities. Cisco’s ICS security capabilities include anomaly detection for OT protocols and visibility across IT and OT data. The company also provides automated response functions that help limit the impact of cyber incidents. This integrated approach enables faster threat detection, improved response times, and stronger protection of critical industrial infrastructure across the US.

Market Ranking

The US industrial control system (ICS) security market is highly competitive. Five major players—Cisco, Honeywell, Palo Alto Networks, Tenable, and Fortinet—hold a strong presence in national OT security deployments. These vendors address different layers of the ICS security stack. Their focus areas include network protection, asset visibility, threat detection, and vulnerability management.

• Cisco secures converged IT and OT environments across the US critical infrastructure, using its approach, which centers on network segmentation and visibility into industrial protocols.
• Honeywell supports operators through its OT focused platforms. These platforms provide threat intelligence and asset-level risk analytics for industrial sites.
• Palo Alto Networks strengthens ICS protection using AI-driven threat prevention. Its architecture supports operations across edge and cloud environments.
• Tenable focuses on continuous and risk-based OT vulnerability management. Its tools help security teams prioritize remediation using operational context.
• Fortinet supports operators with integrated OT security solutions. These include rugged appliances and protocol-aware firewalls for control systems.

These players influence security and deployment models across the US ICS security market

Related Reports:

US Industrial Control Systems (ICS) Security Market by Solution (Encryption, SIEM, Firewall, IAM, DDoS Mitigation, Antimalware/Antivirus) and Security Type (Network, Endpoint, Database) - Forecast to 2030

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