IT/OT is one of nine capabilities within the MARCH Engineering Stack.

Our teams work across live operational environments to design, implement and support networks, servers and remote access solutions that balance performance, resilience and security, ensuring operational technology can safely connect, scale and evolve.

Services range from industrial networking and fieldbus through to OT cybersecurity, high-speed fibre, remote access and lifecycle planning.

Effective integration between IT and operational technology systems depends on network architectures that reflect security, performance and operational requirements. Designing environments that appropriately converge or segregate IT and OT systems helps enable the secure flow of information while protecting critical operational assets. The result is improved cyber resilience, reduced security risk and effective integration between business and operational systems.

Access to operational data often relies on connectivity that can reach assets wherever they are located and process information close to where it is generated. Industrial wireless and edge computing technologies provide flexible connectivity and local data processing capabilities, helping extend visibility across remote, mobile and hard-to-reach environments. The result is improved data availability, reduced latency and faster access to operational insight for critical applications.

Consistent communication between field devices and control systems is essential for reliable automation performance. Industrial fieldbus networks provide the communication infrastructure needed to connect assets, sensors and controllers while maintaining stable system performance. The result is dependable data exchange, reliable automation performance and greater confidence in system operation.

Protecting operational technology systems depends on cybersecurity measures that reflect both operational risk and business requirements. Cybersecurity assessments and control measures aligned with recognised standards and frameworks help safeguard critical assets, strengthen resilience and support compliance obligations. The result is reduced cyber risk, stronger regulatory compliance and improved protection of critical operational systems.

Well-designed server infrastructure provides the foundation for resilient and maintainable IT and OT environments. Server rack design, assembly and installation creates a structured environment for housing industrial networks, control systems and supporting infrastructure while simplifying access and future expansion. The result is organised infrastructure, improved system availability and easier maintenance of critical systems.

Industrial automation, control and data systems rely on network infrastructure that can support reliable communication across connected assets and facilities. Industrial Ethernet and network solutions provide the connectivity needed to link assets, controllers and information systems while maintaining performance and resilience. The result is improved reliability, greater scalability and stronger performance across connected industrial environments.

Effective network performance requires architectures that can manage traffic flows, segmentation and failure scenarios efficiently. Layer 2 and Layer 3 network design and implementation provides the structure needed to control communications, support redundancy and maintain performance across connected systems. The result is enhanced network resilience, improved performance and stronger fault containment.

Software and network infrastructure must evolve to remain secure, reliable and fully supported throughout their lifecycle. Software and network lifecycle strategies help manage patching, obsolescence, upgrades and support requirements, ensuring systems continue to meet operational and security needs over time. The result is reduced support risk, improved security and greater confidence in the long-term sustainability of critical systems.

Related expertise: Control System Obsolescence Management

Increasing volumes of operational and business data require network infrastructure that can deliver high bandwidth without compromising performance. High-speed fibre optic networks provide the low-latency communications and capacity needed for data-intensive applications while supporting future growth in network demand. The result is improved network performance, greater capacity for performance-critical applications and a more future-ready infrastructure.

Visibility of network performance is essential when diagnosing issues that affect automation and connected systems. Network analysis and troubleshooting helps identify communication bottlenecks, configuration issues and emerging faults across industrial infrastructure. The result is reduced downtime, faster fault resolution and improved network performance.

Data and communications infrastructure provides the foundation for connected industrial systems, supporting the flow of information between assets, control systems and business applications. Structured installation of data and communications networks helps deliver consistent performance, reliable connectivity and future scalability within industrial environments. The result is reliable connectivity that supports control, monitoring and digital services across the operation.

Access to industrial systems from remote locations can improve responsiveness, reduce travel requirements and provide greater visibility of operational performance. Secure remote access and monitoring solutions enable engineers and operators to diagnose issues, manage assets and support systems without being physically on site. The result is faster response times, reduced site visits and more proactive operational support.

Industrial IoT solutions create new opportunities to connect assets, sensors and operational data sources across the enterprise. By linking physical equipment to data platforms, IoT technologies help extend visibility, collect real-time information and support more informed operational decision-making. The result is greater operational insight, improved data availability and stronger support for data-driven optimisation initiatives.

Case Studies

Cloud technology deployment for a major utilities company

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Systems integration & automation for leading food and beverage manufacturer

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Asset engineering services for the UK’s best loved cereal brands

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