The network security service

Keep threats out of your network

Next-generation firewalls, segmentation and secure connectivity, designed, deployed and managed by certified experts.

Overview In Action What We Deliver Credentials Get Started

Your first line of defence

Microsoft Intelligent Security Association member

As workforces spread across offices, homes and the cloud, the network perimeter has become harder to define and harder to defend. Flat networks, ageing firewalls and inconsistent policies give attackers room to move once they get inside.

BUI network security helps you build a resilient, well-segmented network with modern controls. We design, deploy and manage next-generation firewalls and secure connectivity using industry-leading platforms, so threats are stopped at the door.

Network security in action

01
Design
Architect for resilience

We assess your current network and design a secure architecture built around segmentation, zero-trust principles and defence in depth, tailored to how your business actually works.

02
Deploy
Implement modern controls

We deploy and configure next-generation firewalls, secure connectivity and access controls from Palo Alto Networks and Fortinet, integrating them cleanly into your environment with minimal disruption.

03
Manage
Keep it protected

Threats and policies change constantly. We manage, tune and monitor your network security controls over time, keeping firmware current, rules tidy and protections aligned with the latest threats.

Capabilities across your network

From the perimeter to the branch, we secure the connections your business depends on.

Next-Generation Firewalls
Palo Alto & Fortinet

We deploy and manage industry-leading firewalls with deep packet inspection, intrusion prevention and application-aware controls to stop advanced threats.

Segmentation & Zero Trust
Contain the blast radius

We segment your network so a single compromise cannot spread freely, enforcing least-privilege access between users, systems and workloads.

Secure Connectivity
Sites & remote users

We connect offices, branches and remote workers securely, extending consistent protection and policy wherever your people need to work.

Willem Malan, Chief Technology Officer, BUI
“A strong network is not just about keeping attackers out. It is about making sure that if they get in, they cannot go anywhere.” Willem Malan · Chief Technology Officer, BUI

Why choose BUI for network security?

Certified Network Experts

Our team holds vendor certifications from Palo Alto Networks, Fortinet and Cisco, among others, so your network is in experienced, accredited hands.

Design to Managed Service

We can take you from architecture and deployment through to fully managed operations, giving you one accountable partner across the whole lifecycle.

Full-Service Security Partner

Network security connects to everything else we do, from monitoring to incident response, giving you defence in depth from a single trusted provider.

Strengthen your network defences

Talk to our network security team about designing, deploying or managing the controls that keep threats out of your environment.