OT security is not IT security with a different name
The principles overlap, but the constraints do not. In OT environments, availability is not just a business priority — it is a safety imperative. Systems that cannot be patched, networks that cannot be rebooted, and protocols designed decades before cybersecurity existed require a fundamentally different approach.
Nomios brings deep OT expertise combined with strong IT security capabilities — giving you a partner who understands both worlds and can bridge them safely. We work across manufacturing, energy, and water infrastructure, helping organisations protect critical operations without disrupting them.
Deep knowledge of your operating environment
OT security requirements differ significantly by sector. Our engineers bring hands-on experience in the environments that matter most to you.
Manufacturing
Production lines, SCADA systems, robotics, and industrial IoT — protecting operational continuity while managing the IT/OT convergence that modern manufacturing demands.
Energy & utilities
Power generation, transmission, and distribution networks — where cybersecurity failures can have cascading consequences for national infrastructure and public safety.
Water & infrastructure
Water treatment, distribution, and wastewater management — critical infrastructure where the security of process control systems directly affects public health.
Across the full OT security lifecycle
From initial assessment and architecture design through to continuous monitoring and incident response — all delivered by engineers who understand OT environments.
- A structured review of your OT environment — identifying assets, mapping network architecture, and surfacing vulnerabilities and risks specific to industrial control systems.
- Designing and implementing secure OT network architectures — including IT/OT demilitarised zones, Purdue model alignment, and segmentation that does not disrupt operations.
- Continuous monitoring of OT network traffic using passive, non-intrusive technologies — detecting anomalies and threats without interrupting industrial processes.
- Identifying and prioritising vulnerabilities across your OT asset base — with remediation approaches that respect operational constraints and maintenance windows.
- Helping OT operators meet IEC 62443, NIS2, and sector-specific regulatory requirements — with pragmatic, evidence-based approaches that work within operational reality.
OT security assessment
Network segmentation & architecture
OT threat monitoring
OT exposure management
Compliance & governance
OT expertise — not IT expertise applied to OT
Engineers who know the shop floor
- Our OT specialists have hands-on experience with industrial control systems, PLCs, SCADA, and the operational realities that make OT security fundamentally different from IT security.
Safety and availability first
- Every recommendation is evaluated through the lens of operational impact. We never propose security controls that put production continuity or physical safety at risk.
IT/OT convergence specialists
- As OT and IT networks merge, the security boundary becomes more complex. Nomios bridges both worlds — bringing IT security rigour to OT without imposing IT assumptions.
Passive, non-intrusive by default
- We use monitoring and assessment approaches that do not inject traffic or interact with live systems — protecting the availability of critical processes throughout every engagement.
Let's talk about your OT environment.
Whether you're starting with an assessment or looking for ongoing monitoring and support — our OT specialists are ready to help.
