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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.

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.

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.

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!