Think of this as your business’s security guard – checking everyone who comes in and out of your digital door. But this one works 24/7, makes smart decisions in milliseconds, and never takes a break. We’ll set up and manage your firewall to keep the bad traffic out while making sure your team can work without interruption.
A managed firewall service provides expert oversight of your firewall infrastructure – the critical security boundary between your trusted internal network and the untrusted outside world. Unlike a traditional firewall that simply sits in place, a managed firewall is continuously monitored, optimised, and maintained by security experts who ensure your protection remains effective against cyber threats.
Modern next-generation firewall technology does much more than simply block unwanted traffic. These sophisticated systems provide comprehensive Unified Threat Management (UTM), using a layered defence approach to inspect all data entering and leaving your network, ensuring only legitimate network traffic passes through while blocking potential threats.
Most businesses seeking improved firewall security share similar challenges:
Managed Firewall Services – Lumina Technologies
Today a traditional firewall approach is no longer enough. Our managed firewall service provides comprehensive protection that works even when your team makes innocent mistakes:
Our security experts actively monitor your network traffic 24/7, establishing what normal patterns look like for your business so that unusual activity can be quickly identified and addressed – even during those Monday morning rushes when your team might be less vigilant.
Not all internet traffic is created equal. Our managed firewall services ensure your critical business applications get the bandwidth they need while less important traffic is appropriately prioritised.
Modern cyber threats require modern defences. Our managed firewall provider implements multiple security layers to protect your business from various attack angles:
Understand how your network is being used and what threats are targeting your business:
Many firewalls are installed but never properly configured or optimised. Our approach as a managed firewall provider is different:
We don’t wait for problems to occur – we actively manage your firewall security to prevent issues before they impact your business:
We understand that security must enable business, not hinder it:
Your firewall needs evolve as your business grows and your security posture matures:
Basic Security Foundation: Establishes core firewall protections with basic configuration, essential traffic filtering, and policies to block common threats.
Baseline Security Practices: Introduces smarter firewall capabilities with detailed traffic management, system integrations, and early threat detection.
Premium Security Enhancements: Adds advanced features like deep packet inspection, proactive threat prevention, and intelligent traffic analysis.
Enterprise Security Leadership: Delivers top-tier protection with custom rules, intrusion detection systems, risk-based controls, and in-depth security analytics.
We’re not like other service providers in the industry. Here’s what makes us different:
Network Security Expertise: Our team of security experts stays ahead of evolving cyber threats, ensuring your firewall infrastructure remains effective against new attack methods.
Business-First Approach: We understand that security must support your business operations, not hinder them. Our firewall management services balance protection with productivity.
Proven Track Record: For over 25 years, we’ve protected businesses like yours from evolving cyber threats. We’ve seen attack patterns change and develop, and we’ve continuously adapted our approach to stay ahead.
Service That Shows We Care: When security alerts happen, you need a responsive team that understands the context of your business. Our award-winning support ensures you’re never left wondering about a potential threat.
The Perfect Size: We’re big enough to have deep security expertise but small enough that you’ll know your security team by name. No generic responses or cookie-cutter solutions—just real protection tailored to your business.
Let’s discuss how our managed firewall services can provide the protection your business needs while supporting your operational efficiency.
A firewall is a vital part of your business’s cyber defences. It monitors and filters all traffic entering and leaving your network, based on a set of security rules. In practice, it acts as a gatekeeper between your internal systems and the outside world (such as the internet), helping to block threats and control access.
Most businesses today use next-generation firewalls (NGFWs), which go beyond basic filtering. These advanced systems can inspect data in more detail, spot malicious behaviour, and enforce business policies to keep your systems secure.
Firewalls can be deployed as physical devices, cloud-based services, or virtual appliances — and at Lumina, we manage them all for you.
A firewall helps prevent unauthorised access to your systems while still allowing legitimate business traffic to flow freely. It:
Modern firewalls can also block traffic from high-risk geographic regions, identify risky applications, and apply rules based on the user, device, or time of day.
Firewalls inspect data as it travels in and out of your network. This data moves in small units called ‘packets’, and each packet is analysed against your firewall’s rules. These rules decide whether to allow or block the packet.
There are several ways a firewall makes these decisions:
Most business firewalls use a “default deny” approach — blocking all traffic unless a rule explicitly allows it. This minimises risk and helps maintain a strong security posture.
The firewall’s primary role is to create a secure boundary between your business systems and external threats. It helps:
Firewalls are also a requirement for meeting key standards such as Cyber Essentials — a must-have for many UK organisations working with government or regulated clients.
A managed firewall means you don’t need to worry about configuring or maintaining your own firewall — Lumina takes care of it for you.
We provide a fully managed service which includes:
With a managed firewall, you benefit from enterprise-grade protection without needing in-house expertise. You get peace of mind knowing your network is protected and compliant – and that if something unusual happens, we’ll be on it straight away.
Yes — a properly configured firewall plays a key role in helping your business meet its compliance obligations.
In the UK, data protection regulations such as the General Data Protection Regulation (GDPR) require businesses to take appropriate technical measures to safeguard personal data. A firewall helps you meet these requirements by controlling and logging access to your systems, and by helping to prevent unauthorised access.
Firewalls are also a core requirement for achieving Cyber Essentials and Cyber Essentials Plus certification — the UK government-backed scheme that shows your business takes cyber security seriously. Under the scheme, you must have a firewall in place at the boundary between your network and the internet, and it must be securely configured and regularly updated.
At Lumina, we help our clients configure their firewalls in line with Cyber Essentials requirements. As part of our managed firewall service, we ensure the settings support your compliance goals and provide the necessary documentation and logging needed during certification.
Whether you’re pursuing certification or simply want assurance that your network is secure and standards-compliant, our team can help you get there.
Lumina Technologies Prism Hosted Desktop has allowed our business to centralise our global corporate data, allowing much faster access for all our staff – regardless of their location. We have also been able to simplify and reduce our infrastructure and management overhead. With the new Prism Hosted Desktop solution all staff now have simple and secure access to corporate data using any device they choose. Prism Hosted Desktop has increased the productivity of our staff and given us a single, consistent and familiar experience for all users from any device, in any location, 24/7.
Katherine Roe
Chief Executive Officer, Wentworth Resources PLC
Richard and his team at Lumina have provided Perrett Laver Limited with high quality strategic and practical IT Services for over ten years. During this period, Perrett Laver has grown from 10+ colleagues based in London to nearly 100 colleagues located in six offices across the Americas, EMEA and Asia-Pacific. Richard and the Lumina team have not just been responsive to our ‘everyday’ IT needs, but have proactively sought to work with us on developing an infrastructure suitable for the type of operation we are today, and are planning to be months and years down the line. I would not hesitate to recommend Richard, especially for small to medium size business with growth in mind.
Clementine McKinley
COO, Perrett Laver Limited
We worked with Lumina on a GDPR Audit. Richard was knowledgeable and professional throughout, and did the best he could to bring a dry topic to life through lots of real life examples and analogies. We were so impressed with the service Lumina provided and the value we got from partnering with them on this project – we couldn’t recommend them enough.
Holly Cottingham, Vintec Laboratories
Lumina Technologies has been Salamander Energy plc’s IT provider since start-up in 2005 and has supported us in London during our expansion across operational offices in SE Asia. Their professional approach, strategic advice and close co-operation have been essential in making this a success.
John Bell
Group Technical Director, Salamander Energy plc
The team at Lumina Technologies have made the Amoun Travel & Tours office IT transition seamless and problem free. The office set-up has been vastly improved and the IT Support services are flawless. No issue goes unresolved, which is extremely reassuring.
Adam Helmy
Amoun Travel & Tours Ltd
The commercially sensitive and regulated nature of Lambert Energy Advisory’s business requires an IT provider able to maintain the highest levels of integrity and confidentiality, Lumina Technologies has consistently been unimpeachable in this regard over the nine years we have employed them.
Patrick Agar
Lambert Energy Advisory
It has been a great pleasure working with Lumina Technologies over the past two years. They have fully committed to being involved in the local community with volunteering and with professional advice and commitment, helping many local charities along the way. As a growing company it proves that being involved in the local community is helping them attract and retain a talented workforce and I look forward to working with them well into the future.
Cindy Withey
Connect Dacorum
The quality of IT Support provided by Lumina Technology is of the highest standard and is complemented by effective client liaison with impressive response times. Trap Oil Group plc has no hesitation in recommending Lumina as a dedicated and specialist group of IT professionals.
Martin David
Technical Director, Trap Oil Group plc
We’ve been so well supported by Paige and the Lumina team. They’ve been highly professional, very responsive, friendly, supportive. It’s really validated the decision to engage an IT partner, and we’re glad it’s with Lumina.
Bruce Storey
Chief Operating Officer, Estu Global Ltd
