OT/ICS Cybersecurity Companies Serving Indian Manufacturers

A factory can survive an IT outage. A production line may not survive an OT security incident quite as easily. That is the fundamental difference driving the growth of industrial cybersecurity. In a conventional IT environment, confidentiality and data protection may dominate the conversation. In operational technology, cybersecurity failures can stop machines, disrupt production, damage equipment and, in some environments, create safety risks.

For Indian manufacturers, the issue is becoming harder to ignore. Factories are connecting more PLCs, SCADA systems, sensors, industrial PCs and remote-access tools to enterprise networks and cloud platforms. At the same time, many plants continue to operate equipment that was designed long before cybersecurity became a board-level concern.

This has created a growing market for industrial control system security India providers and platforms that understand one critical reality: you cannot treat a production line like an office network.

The vendor landscape now includes OT-native cybersecurity specialists, large IT security companies extending into industrial environments and Indian consulting firms helping manufacturers build and operate security programmes. Here are some of the key companies serving the OT and ICS cybersecurity market relevant to Indian manufacturers.

• Claroty: For Manufacturers Looking at the Entire Cyber-Physical Environment

Claroty has become one of the most prominent names in cyber-physical systems security. Its platform focuses on visibility and protection across operational technology, industrial control systems, IoT and other connected physical environments. For manufacturers, that means identifying assets that may not appear in conventional IT security tools and understanding how they communicate across industrial networks.

The company is particularly relevant because asset visibility remains one of the first problems manufacturers need to solve. You cannot secure an industrial environment properly if nobody has a complete picture of what is connected to it.

Claroty’s capabilities span asset discovery, vulnerability and exposure management, network protection and secure access. More recently, its relevance in India has also increased through partnerships focused on bringing cyber-physical security capabilities to sectors including manufacturing. 

• Nozomi Networks: For Deep Industrial Visibility and Threat Detection

Nozomi Networks is one of the specialist companies built around operational technology and cyber-physical security. Its technology focuses heavily on discovering and monitoring industrial assets, analysing network activity and identifying threats without treating industrial systems like conventional IT endpoints.

That distinction matters.Many PLCs and legacy control systems cannot simply run security agents. Taking equipment offline for frequent scanning or patching may also be operationally unacceptable. OT security platforms therefore often rely on network monitoring and industrial protocol awareness to build visibility without disrupting production.

• Dragos: For OT-Native Threat Detection and Incident Response

Dragos is one of the clearest examples of an OT-first cybersecurity company. Its platform is built specifically around operational technology and industrial environments, with capabilities covering asset visibility, vulnerability prioritisation, threat detection, threat intelligence and incident response.

For manufacturers, the company’s strongest differentiator is its industrial focus. Dragos tracks threats targeting physical operations and supports industrial protocols that generic IT tools may not understand. Its manufacturing offering specifically addresses PLCs, HMIs, SCADA servers and industrial IoT assets, alongside threat detection designed around production environments. 

• Tenable: For Manufacturers Starting With Exposure and Vulnerability Management

For many manufacturers, the first OT cybersecurity question is not, “Are we under attack?” It is, “What vulnerabilities do we actually have?” That is where Tenable India and the company’s OT security capabilities become relevant.

Tenable is widely known for vulnerability and exposure management in IT environments, but its OT security capabilities extend that approach into industrial environments. The focus is on identifying industrial assets and understanding vulnerabilities without relying on disruptive security practices that may not be suitable for production networks.

This can be particularly useful for manufacturers trying to connect IT and OT risk management. The challenge, however, is not simply finding the highest number of vulnerabilities. Industrial security teams need to understand which weaknesses actually pose an operational risk and which can be addressed without affecting production.

• Palo Alto Networks: For Network Security Across IT and OT

Palo Alto Networks approaches industrial cybersecurity from a different direction. Rather than being exclusively an OT-native company, it brings a large enterprise security portfolio into industrial environments. Its OT security capabilities include network segmentation, threat prevention and visibility designed to help protect industrial networks as IT and OT become increasingly interconnected.

For manufacturers with complex enterprise networks, that can be important. The biggest OT security challenge is often not a single insecure PLC. It is the connection between systems. Remote access, engineering workstations, enterprise applications, cloud services and third-party vendors can all create pathways into operational networks if segmentation and access controls are poorly designed.

• Fortinet: For Manufacturers Building Industrial Network Defences

Fortinet is another major cybersecurity company with a significant focus on operational technology. Its industrial security approach combines network security, segmentation, secure remote access and OT-aware protection. The company’s industrial portfolio is particularly relevant for manufacturers operating distributed plants and facilities where secure connectivity has become essential.

The attraction for manufacturers is the ability to combine IT and OT network protection within a broader security architecture. This can be useful for organisations that do not want to deploy an entirely separate security stack for every part of the industrial environment.

• Honeywell: For Industrial Security With Process Expertise

Honeywell occupies a distinctive position because it understands industrial environments from the inside. The company has long supplied automation and control technologies to process industries and has expanded its cybersecurity capabilities around those operational environments.

That experience matters in sectors where an OT security decision cannot be separated from the engineering process. Chemical plants, refineries, power facilities and large process manufacturing operations may require cybersecurity specialists who understand industrial control architectures as well as network security.

• Wipro: For Indian Enterprises That Need Security Services Around the Technology

Technology alone does not create an OT cybersecurity programme. Someone still has to assess the environment, design controls, monitor risks and respond when something goes wrong. That is where Indian technology and consulting companies become important.

Wipro has a broad cybersecurity business and provides services that can support industrial organisations across strategy, managed security and transformation. For manufacturers with complex environments, service providers can help connect OT security initiatives to existing enterprise security operations.

The role of large Indian service providers is becoming increasingly important as manufacturers struggle to find specialists who understand both cybersecurity and industrial operations.

• PwC India: For OT Risk, Governance and Cyber-Physical Security Programmes

PwC India is increasingly relevant to manufacturers that need help with the programme around OT security rather than simply buying another security platform. That can include risk assessments, governance, compliance, security architecture and cyber resilience planning.

Its recent strategic alliance with Claroty highlights where the market is heading: consulting firms are combining risk and transformation expertise with specialist OT technology to build security programmes around cyber-physical environments. The partnership specifically targets sectors including manufacturing. 

• The Bigger Shift: Industrial Cybersecurity Is Moving From Protection to Resilience

The most important change in OT cybersecurity may be happening outside individual vendor platforms. The European Union’s Cyber Resilience Act is adding another dimension to this discussion. The regulation introduces cybersecurity requirements for products with digital elements, including requirements around secure design, vulnerability management, documentation and support over the product lifecycle. Its main obligations apply from December 2027, while reporting obligations began applying from September 11, 2026. 

Why should an Indian manufacturer care? Because manufacturers selling connected products, industrial equipment or digital products into Europe may increasingly need to consider cybersecurity as part of product design and lifecycle management not simply as an IT department responsibility.

The Real Challenge Is Not Buying Security Software

Indian manufacturers do not necessarily have an OT cybersecurity technology problem. Many have a visibility problem. Others have a responsibility problem between IT and plant operations. And some have a legacy problem, critical equipment that cannot simply be patched, restarted or taken offline.

That is why industrial cybersecurity needs a different mindset. The goal is not to turn a factory into an IT network. It is to make the factory more secure without compromising the availability, reliability and safety that production depends on.

As industrial systems become more connected, that balancing act will become harder. The manufacturers that get ahead will be the ones that stop treating OT cybersecurity as a specialist project triggered after an incident. They will start treating it as part of how the factory is designed, connected and operated.