Top Operational Technology (OT) Security Companies

The operational technology (OT) security market is projected to grow from USD 23.47 billion in 2025 to USD 50.29 billion by 2030 at a Compound Annual Growth Rate (CAGR) of 16.5% during the forecast period. Rising threats from cyberattacks targeting critical infrastructure are driving the adoption of OT security solutions. Sectors such as energy, transportation, and water utilities are increasingly integrating advanced security frameworks to safeguard operational systems from disruption and data breaches. For example, in 2023, a coordinated cyberattack on Taiwan’s state-owned energy companies attempted to disrupt power supply operations, prompting accelerated investments in industrial OT security systems across the region.

What is OT security?

According to MnM, “OT is the use of hardware and software to monitor, detect, and control physical devices, processes, and events in enterprises. OT security includes a broad array of security solutions, such as NGFWs, IAM, and SIEM, among others, which are used to protect people, physical assets, processes, and information.”

Competitive Overview:

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Top Operational Technology (OT) Security Companies Include :

• Fortinet (US)
• Forcepoint (US)
• Cisco (US)
• Tenable (US)
• Forescout (US)

The OT Security market is led by some of the globally established players, such as Fortinet (US), Forcepoint (US), Cisco (US), Tenable (US), Forescout (US), Seckiot (France), Check Point (Israel), Broadcom (US), Trellix (US), Microsoft (US), Okta (US), Palo Alto Networks (US), Qualys (US), Zscaler (US), BeyondTrust (US), CyberArk (US), Rapid7 (US), Sophos (UK), Tripwire (US), Radiflow (Israel), Kaspersky (Russia), SentinelOne (US), Thales (France), Armis (US), Darktrace (UK), Nozomi Networks (US), Honeywell (US), Schneider Electric (France), Siemens (Germany), ABB (Switzerland), Tosibox (Finland), Rhebo (Germany), Shield-IoT (Israel), Claroty (US), Dragos (US), Cydome (Israel), Ordr (US), Mission Secure (US), runZero (US), SIGA OT Solutions (US), Sectrio (US), Waterfall Security Solutions (Israel), and Opswat (US). Partnerships, agreements, collaborations, acquisitions, and product developments are various growth strategies these players use to increase their market presence.

Fortinet (US) is a global leader in automated and integrated cybersecurity solutions. The company’s managed service portfolio includes firewalls, APT detection, Wireless Local Area Networks (WLAN) and switching, virtualized security, Identity and Access Management (IAM), and application security. Fortinet Security Fabric helps manage an attack, protect the entire infrastructure through integrated visibility, stop advanced threats through integrated AI-driven breach prevention, and reduce complexity through automated operations and orchestration without compromising performance. The solution provides segmentation of the entire network to prepare it for a zero-trust approach.

Forcepoint (US) is a subsidiary of Francisco Partners. It offers solutions for cloud security, network security, data and insider threat security, and global government security. Its service offerings include data security consulting, cybersecurity intelligence services, training and technical certification, government certification, and support services. Forcepoint serves financial services, government, healthcare, and retail industries. The company offers products over two lines: Global Governments and Critical Infrastructure & Commercial Security. The company's portfolio encompasses a wide range of products and services designed to address the evolving cybersecurity landscape. These offerings include next-generation firewalls, secure web gateways, data loss prevention tools, cloud access security brokers, and user and entity behavior analytics.

Cisco

Cisco (US) is a leading player in the Operational Technology (OT) security market, leveraging its extensive networking and cybersecurity expertise to protect industrial environments. The company offers integrated security solutions designed to safeguard critical infrastructure, including manufacturing, energy, transportation, and utilities, from cyber threats. Through its Secure Firewall, Cyber Vision, and Industrial Security Appliances, Cisco provides real-time visibility, threat detection, and segmentation across both IT and OT networks. Its approach focuses on unifying IT and OT security under a common architecture, enabling organizations to monitor and respond to threats across their entire digital landscape.

Tenable

Tenable (US) is a prominent player in the Operational Technology (OT) security market, specializing in vulnerability management and cyber risk assessment for industrial environments. Through its Tenable OT Security platform (formerly Indegy), the company provides deep visibility into OT assets, continuous monitoring, and threat detection to protect critical infrastructure from cyberattacks. Tenable’s solutions integrate IT and OT security, allowing organizations in sectors like energy, manufacturing, and utilities to identify vulnerabilities, assess risks, and prioritize remediation efforts effectively. Its unified approach helps bridge security gaps between IT and OT, ensuring comprehensive protection of industrial networks.

Forescout

Forescout (US) is a prominent player in the Operational Technology (OT) security market, offering comprehensive solutions that provide real-time visibility, threat detection, and control across IT, OT, and IoT environments. Their platform, Forescout for OT Security, is designed to secure complex, heterogeneous infrastructures—whether cloud-based, air-gapped, or hybrid—by delivering proactive exposure management, AI-enhanced asset intelligence, and threat detection powered by their proprietary Vedere Labs research. Recognized as a Leader and Fast Mover in the 2024 GigaOm Radar Report for OT Security, Forescout supports over 300 OT/IoT protocols and enables organizations to discover and manage both managed and unmanaged devices across all Purdue levels. Their solutions are particularly effective in sectors like healthcare, manufacturing, and critical infrastructure, where nonintrusive asset discovery and extensive protocol support are critical. Additionally, Forescout's partnerships with industry leaders like Splunk, CrowdStrike, and CyberArk enhance their threat intelligence and response capabilities, providing a unified approach to securing cyber-physical systems.

Market Ranking

The OT security market is highly competitive and fragmented, with five major players—Cisco, Tenable, Microsoft, Forcepoint, and Palo Alto Networks—collectively accounting for approximately 6–11% of the total market share. Cisco leads with its integrated network and OT security solutions tailored for industrial environments, while Tenable holds a strong position with its dedicated OT vulnerability management offerings. Microsoft leverages its Azure Defender for IoT platform to secure critical infrastructure, gaining traction in cloud-integrated OT security. Forcepoint has carved a niche with behavior-based analytics and insider threat prevention, whereas Palo Alto Networks combines firewall and industrial control system (ICS) protection to offer comprehensive OT security. The rest of the market is distributed among numerous regional and niche vendors, intensifying fragmentation and opening up opportunities for emerging players. Competition in the OT security space is driven by the convergence of IT and OT networks, increasing industrial cyberattacks, and stringent compliance mandates across sectors like energy, manufacturing, and transportation.

Related Reports:

Operational Technology (OT) Security Market by Offering (Solutions and Services), Deployment Mode (On-premises and Cloud), Organization Size (SMEs and Large Enterprises), Vertical (Manufacturing, Oil & Gas, and Energy & Power) - Global Forecast to 2030

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