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Network security architect designing a segmented network architecture with firewall zones on a whiteboard
Network Design

Security built in from day one, not bolted on.

Network segmentation, VLAN isolation, and zero-trust principles designed into your network architecture from the start. A secure network is a designed network, not a patched one.

Secure by Design
Compliance Aligned
Zero Trust Principles
100%
of our network designs include security zone documentation and VLAN isolation
Day 1
security is designed in from the start, not added after deployment
0
network designs produced without a documented firewall policy framework
Capabilities

Every security layer designed in from the start.

Our security-first approach means every design decision is evaluated for its security implications before it is finalised.

Network Segmentation Design

Your network divided into logical segments that limit the blast radius of any security incident. Servers, workstations, IoT devices, and guest users all on separate segments with controlled inter-segment traffic.

Network SegmentationBlast Radius LimitationTraffic Control

VLAN Isolation and Access Control

VLANs designed to isolate traffic by function, department, and risk level. Inter-VLAN routing controlled by firewall policy, not switch ACLs. Every VLAN documented with its purpose and permitted traffic flows.

VLAN DesignFirewall PolicyAccess Control

Zero Trust Principles

Trust nothing, verify everything. Network access based on identity and device compliance, not physical location. Users and devices authenticated before accessing any network resource.

Zero TrustIdentity-Based AccessDevice Compliance

Firewall Architecture Design

Firewall placement and policy design that enforces your security requirements without creating bottlenecks. North-south and east-west traffic flows both controlled. Default-deny policies throughout.

Firewall PlacementDefault DenyTraffic Inspection

Security Zone Definition

Clear security zones defined for every part of your network. DMZ, internal, management, and guest zones each with documented access policies and monitoring requirements.

Security ZonesDMZ DesignManagement Network

Compliance Alignment

Network design aligned to your compliance requirements from the start. Cyber Essentials, ISO 27001, PCI DSS, and GDPR requirements mapped to network design decisions. Audit evidence built in.

Cyber EssentialsISO 27001PCI DSS
How It Works

From threat modelling to compliance-ready design.

01

Security Requirements Capture

We identify your compliance obligations, data classification requirements, and risk appetite. These drive every security decision in the network design.

02

Threat Modelling

We model the threats relevant to your business and network. Internal threats, external attacks, and supply chain risks all considered. Design decisions made with specific threats in mind.

03

Security Zone Design

Security zones defined for every part of your network. Trust levels assigned, traffic flows mapped, and access policies documented for each zone boundary.

04

VLAN and Segmentation Design

VLANs designed to enforce your security zone model. Every VLAN documented with its purpose, permitted devices, and inter-VLAN routing policy.

05

Firewall Policy Framework

Firewall rules designed to enforce your security zone boundaries. Default-deny policies, explicit permit rules, and logging requirements all documented.

06

Compliance Mapping

Every security design decision mapped to your compliance requirements. Evidence pack produced showing how the network design meets each control requirement.

Real Results

How we have helped UK businesses.

PCI DSS Network Segmentation

A Leeds retailer needed their card payment systems properly isolated from the rest of their network to meet PCI DSS requirements and pass their QSA assessment.

Cardholder data environment isolated in a dedicated VLAN with firewall-enforced access controls. PCI DSS network segmentation requirements fully met. QSA assessment passed first time.

IoT Device Isolation

A Manchester manufacturer had hundreds of IoT devices on the same network as their business systems. A compromised IoT device could reach any system on the network.

IoT devices isolated in a dedicated VLAN with no access to business systems. Outbound internet access controlled. Security incident risk reduced significantly.

Guest Network Separation

A Birmingham professional services firm had clients and contractors connecting to the same network as their confidential client data and internal systems.

Guest network completely isolated from internal systems. Client and contractor devices unable to reach any internal resource. ISO 27001 access control requirements met.

Ready to Start?

Design security into your network from the ground up.

Our network architects will design a security architecture that meets your compliance requirements and protects your business. No bolt-on security, no afterthoughts.