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Secure, Seamless Connectivity for Critical Operational Systems

Revolutionising Connectivity for Critical Infrastructure: Private internet off the cloud (IOTC) Secure, Reliable, and Always On.

Critical infrastructure demands secure, reliable, and purpose-built networking solutions to ensure seamless operations across local and wide-area environments. IT4A’s Connect services deliver next-generation networking that combines high availability, Zero Trust principles, and industrial-grade reliability to meet the specific needs of operational technology (OT) systems.

Our solutions are designed to ensure that your systems, operators, and maintainers stay securely connected, whether they’re on-site, across a wide area, or accessing remotely. IT4A eliminates the vulnerabilities and limitations of traditional networking, providing certainty in connectivity for critical operations.

Our Private Wide Area Network Stack

IT4A’s Connect is a revolutionary approach to secure and reliable wide area networking, tailored specifically for critical operational infrastructure.  It supports automated failover between any service type across a private (non-Internet based) WAN:

  • Broadband Services
  • FTTP / SOGEA – BT’s Next Generation Services
  • FTTC where existing ADSL cannot be migrated to SOGEA
  • Leased Lines for critical locations
  • Private ‘internet off the cloud’ (IOTC) provision
  • Mobile Data Services
  • Multi Network SIM (Vodafone, O2, EE, and Three)
  • Connect to any of the four UK mobile networks for robust and resilient connectivity.
  • Gigabit Tarrifs keep cost to a minimum
  • Private APN 'internet off the cloud (IOTC) provision
  • Satellite Data Services
  • Starlink residential, business and roaming tarrifs.
  • Always on Open VPN access into your private core. Internet transit constraint is mitigated by VPN.

Zero Trust Remote and Local Access

1. Zero Trust Remote Access Service (ZTRAS)

  • Securely connect operators, maintainers, and integrators to private networks from anywhere.
  • Enforce strict access controls based on Zero Trust principles—users gain access only to what they need, when they need it.
  • Prevent unauthorised access and lateral movement within your network.
  • Optimised for operational continuity without compromising security.

2. Zero Trust Local Access Service (ZTLAS)

  • Protect critical operational networks from potential threats originating within your organisation’s local IT infrastructure.
  • Defend operational areas from compromised PCs, unauthorised devices, or insider threats.
  • Enforce strict authentication, segmentation, and monitoring at every access point.
  • Seamlessly integrates with your operational systems to maintain productivity and security.

Site Wide Network / Local Area Network

IT4A’s have provided turnkey network integration projects to Industry for 25 years.   Robust product selection, high-availability architecture, security by design and condition and security monitoring have been corner stones of IT4A’s approach.

  • Solutions Partner of the leading brands
  • FTTP / SOGEA – BT’s Next Generation Services
  • FTTC where existing ADSL cannot be migrated to SOGEA
  • Leased Lines for critical locations
  • Private ‘internet off the cloud’ (IOTC) provision
  • Context Aware Network Topology & Architecture
  • Network design (and cost) should be proportionate to assessed risk.
  • Environmentally robust products, redundancy and resilient infrastructure, all contribute to design
  • Product features underpin and enable secure design.
  • Product quality assures extended trouble free operation.
  • Design for compliance
  • Within the UK the Network and Information Security Directive (NIS) and NCSC CAF 4.0 drives design outcomes for critical infrastructure
  • IT4A design to achieve CAF, either by alignment to IEC 62443-3-3 cyber security framework for the Industrial Automation and Control Systems (IACS) sector or, alternatively, by adoption of the native Secure by Design Principles recommended by NCSC.

1

Evaluate Your Needs

Schedule a consultation with IT4A to assess your current network infrastructure, identify gaps, and define your requirements. Whether you’re looking for local site-wide connectivity, wide-area networking, or secure access solutions, we’ll help you map out the right approach.

2

Select Your Solution

Based on your needs, choose from IT4A’s purpose-built connectivity solutions:

  • Private Local Site-Wide Networking for reliable on-site connectivity.
  • Network as a Service (NaaS) for secure, high-availability wide-area networks.
  • Zero Trust Remote Access Service (ZTRAS) for secure, remote access to operational systems.
  • Zero Trust Local Access Service (ZTLAS) to defend critical networks from internal threats.

3

Tailored Network Design

Collaborate with IT4A’s experts to design a custom network solution optimised for your operational and security needs.

4

Implementation and Support

Let IT4A deploy, configure, and maintain your network. With proactive monitoring, industrial-grade hardware, and ongoing support, we’ll ensure your connectivity is secure, reliable, and future-ready.

No compromise networking.

  • Private Networking: Secure, high-performance local and wide-area networks tailored for OT environments.
  • Zero Trust Access Services: Advanced security frameworks to protect your systems from unauthorised access.
  • High Availability: Networks built with industrial-grade hardware to ensure 24/7 reliability.
  • Scalable Solutions: Designed to grow with your operational and geographic needs.
  • Purpose-Built for OT: Solutions engineered specifically for critical operational environments.
  • Simplified Management: Unified, streamlined network solutions that reduce complexity and maximise efficiency.

Very Pleased with IT4A's Service

IT4Automation visited to perform a network survey and assisted with troubleshooting a network issue… I was very pleased with the service that IT4Automation provided and would certainly contact them again in the future if needed.

Stuart Jolley – S,C&I Engineer – Systems Lead

Great Communication and Good Improvements

Great communication, reliable and your team… worked pretty much non stop start to finish. I think this upgrade has made a good improvement to the machine and will improve reliability.

George Voisey – Balfour Beatty Rail

Let’s Build Your Network

Discover how IT4A can transform your connectivity.

Schedule a Connectivity Consultation Today!