Firewall & Secure Internet Services for Businesses in London

A properly configured and actively managed firewall is a mandatory requirement under both Cyber Essentials Plus and ISO 27001. If you are pursuing either certification, this is not optional.

There are a number of strong options in the market. We have extensive experience with Cisco Meraki and it is our preferred recommendation for most clients: it is a reliable, well-supported platform that scales and manages well. That said, if you have a strong existing preference for another manufacturer, we will assess the solution and, if it meets our standards, install and manage it for you.

We work with businesses across financial services, legal, property development, accountancy, manufacturing and marketing, and our firewall recommendation always reflects the needs of your specific environment rather than a blanket preference.

Our 24x7 SOC begins investigating immediately when a suspicious signal or indicator of compromise is generated by your firewall.

Our SIEM and MDR platforms continuously analyse activity and actively look for threats. If a genuine threat is identified, the SOC can take immediate containment actions, such as isolating a device or disabling a user account to limit impact.

For critical alerts, members of our security team are also notified directly by phone, ensuring rapid awareness and escalation. In short, investigation starts as soon as the alert is raised, with automated and human response working together to contain risk as quickly as possible.

No. A correctly configured managed firewall operates transparently. Your team should not notice any difference in connection speed or performance. If anything, good firewall management can improve network performance by controlling unnecessary traffic. The key phrase is 'correctly configured', which is why having experienced engineers handle the implementation matters.

Yes. If you have an internal IT team who want to retain hands-on access to the firewall for day-to-day monitoring and management, we are happy to work alongside them. We can install the firewall and configure it correctly, then grant your team the level of access that makes sense for your arrangement, while remaining available to support them with anything more complex.

Traditional firewalls work by inspecting packet headers: checking where traffic is coming from and where it is going, then applying rules to allow or block it.

A Next-Generation Firewall (NGFW) with Deep Packet Inspection (DPI) goes significantly further. Rather than just checking the header of each data packet, DPI inspects the content itself in real time. This means it can identify malware, ransomware signatures and suspicious behaviour hidden inside what appears to be entirely normal traffic, including encrypted traffic. It can also control specific applications by what they are actually doing rather than just where they are connecting to, and it integrates with up-to-date threat intelligence feeds to stay current on emerging attack methods.