Secure Networks

A network that connects and protects

But without strong network security, they can quickly become your greatest liability. 

We help organisations like yours build secure networks that connect and protect. Whether it’s rolling out SASE, working with Zero Trust frameworks, or just simplifying a complicated setup, we’ve got the tools and experience to help. 

We understand that as your business grows, so does your digital footprint, and with it, the potential for risk. But you don’t have to tackle this alone.

With partner support from Cisco and Fortinet, and a team that genuinely cares about your success, we’ll help you create a network security strategy that lets you move forward with confidence. 

Related services

Comprehensive solutions to fortify your network infrastructure and elevate service quality.

SASE (Secure Access Service Edge)

Unifying security and networking into a cloud-delivered service that ensures secure, high-performance access - anywhere, anytime. 

    • Centralised security and network management

    • Consistent protection across all locations

    • Delivered with top-tier technology partners

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    SD-WAN

    Delivering secure, flexible, and future-ready connectivity through expert-managed SD-WAN and a wide range of access options. 

      • Custom access options across the UK

      • Fortinet-powered secure networking

      • Managed service with ongoing support

      View service

      ZTNA (Zero Trust Network Access)

      Modernising access control with a unified, intelligent platform that delivers fast, secure, and scalable connectivity, without the complexity. 

        • Unified access control to reduce complexity

        • Centralised policies and real-time protection

        • Works with your existing security tools

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        Operational Technology (OT) security

        Delivering industry-tailored OT protection with integrated, AI-driven solutions that secure critical systems without disrupting operations. 

          • Fortinet-powered, zero-trust security

          • Industry-specific protection and compliance

          • Real-time threat detection and response

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          Managed Extended Detection and Response (XDR)

          Providing 24/7 unified threat detection and response to protect your core systems while reducing internal workload. 

            • Centralised monitoring and response

            • Full incident management and alerting

            • Expert protection for critical systems

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            Cyber Threat Assessment

            Providing a structured, expert-led review of your security posture. We pinpoint risks and guide remediation with clear, actionable insights. 

              • External penetration testing

              • Internal network assessments

              • Specialised OT testing

              View service

              Inbound Call Management

              Empowering teams with a flexible, feature-rich platform for smart call routing, real-time visibility, and seamless customer engagement. 

                • Easy routing with real-time insights

                • CRM and tool integrations

                • Scales with your team and needs

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                SIP Enabled Voice

                Delivering scalable, resilient voice solutions tailored to your business, with expert support and carrier partnerships for lasting performance.

                  • Tailored SIP setup for your needs

                  • Flexible, future-proof infrastructure

                  • Support from migration to management

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                  Managed Services

                  Stuck in the reactive IT grind and losing steam? Let Nasstar’s Next Generation Managed IT Services handle the heavy lifting, so you can focus on growing, innovating, and actually getting things done. 

                  End-to-end solutions 

                  We build it, we run it. Here for whetever you need.

                  Greater scalability

                  Embrace scalable solutions that grow with your business.

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                  Whatourexpertsays...

                  Digital transformation offers many benefits and helps organisations work more efficiently. It can also bring cyber security risks and technical issues. We combine Fortinet and Cisco’s advanced technology with our expertise to build secure, adaptable networks. This lets businesses focus on what matters most, growing and innovating, with the assurance that systems are safe and running smoothly.

                  Leigh WalgateManaging Director (Secure Networks), Nasstar

                  Why choose Nasstar?

                  Let's replace complexity with clarity by securing legacy systems, modernising your infrastructure, and exploring frameworks like SASE and Zero Trust.

                  Case studies

                  We’ve worked with several businesses to improve their network security with better visibility and control.

                  Leisure & hospitality

                  British Cycling

                  Banking & FS

                  Leading Global Benefits Provider

                  Banking & FS

                  SunLife

                  Banking & FS

                  FTSE 100 Insurance and Investment Company

                  What others have to say...

                  "As we work towards fulfilling our ambition of transforming Britain into a truly great cycling nation, we needed a partner with a resilient Managed IT service to support our operations. Nasstar’s Fully Managed IT service provides us with endless benefits, providing robust end-to-end management so we can invest in strategic projects, a large team of technical experts who not only know their stuff but are friendly and helpful too - plus round-the-clock support whenever we need them."

                  Cazz Ward

                  Head of IT and Digital

                  •

                  British Cycling

                  FAQs

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                  Network security refers to the strategies, technologies, and practices used to protect the integrity, confidentiality, and availability of your data and systems as they travel across digital infrastructure. It safeguards your organisation from cyber threats such as ransomware, phishing, and unauthorised access from inside and outside the business. In today’s hyper-connected environment, where cloud adoption and hybrid working are the norm, network security has become essential. Without it, businesses face an increased risk of data breaches, operational disruption, and reputational damage. A well-structured secure networking approach is foundational to resilience, compliance, and growth. 

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                  Latest insights

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