Critical Network Infrastructure

Critical Network Infrastructure

National Cyber Security Centre

Following NCSC Good Practice

What is Critical Infrastructure?

The loss or compromise of critical elements of infrastructure (namely assets, facilities, systems, networks or processes and the essential workers that operate and facilitate them), could result in:

a) major detrimental impact on the availability, integrity or delivery of essential services – including those services, whose integrity, if compromised, could result in significant loss of life or casualties – taking into account significant economic or social impacts;


b) significant impact on national security, national defence, or the functioning of the state”.

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Critical Infrastructure Industries

The national infrastructure is categorised into thirteen sectors and over its 18+ years of Critical Network experience IT4A has provided network solutions in 8 of the 13 sectors, these being:
  • communications
  • energy
  • financial services
  • food
  • transport
  • water
  • civil nuclear
  • chemicals

Related Competence

Our skills, experience, competence and security clearances open the door for opportunities in the remaining 5 sectors:
  • defence
  • emergency services
  • government
  • space
  • health
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Specialist in Critical Network Infrastructure

IT4A provide a complete solution for Critical Network Infrastructure projects. Our approach involves collaboration to define and refine requirements, scope and basis of design. We then work in partnership to deliver a solution that is sustainable and best utilises the combination of resources available. Our approach has been recognised by Nuclear ARMC. IT4A have been accepted onto the NARMC fit4nuclear pathway that is readying UK manufacturing for the UK government’s investment in UK Nuclear energy – both new build and obsolescence.

Solutions     Integrated Security Solutions   SCADA Networking


Automation networks rely upon 5 key technology areas:

“I can honestly say that with IT4A working alongside us we assembled the right team managed to achieve all our goals successfully”

Nuclear Sector,

Project Manager