Directory · GB
Computer and Network Security in United Kingdom
A register of firms and the professionals working at them in the Computer and Network Security sector based in United Kingdom. Browse the public index, then filter or export on Kipplo.
Companies
1.8K on file
Blue Box It Group
Blue Box IT is part of the Blue Box IT Group. Blue Box IT Group is a specialist provider of IT support, services, hardware, software and audio visual solutions to education establishments and business organisations across the UK. Since 2002, Blue Box IT has been providing advice and support to schools and colleges across the UK to ensure that their ICT continues to help deliver the teaching and learning experience that they aspire to. We specialise in all aspects of education technology and provide a wide range of support, sales and service options delivered by our expert and friendly staff. A recent strategic partnership with Awaken IT now provides our customers with additional specialist advice and support to help deliver a unified managed IT solution that can cater for all their needs.
11 to 50 staff
Bsides Leeds
BSides Leeds Security Conference
1 to 10 staff
Chaser Systems
We are committed to substantially improving your cybersecurity integration experience, even in systems with complex interactions. Our products focus on: • Painless Configuration • Shift-Left Operability • High Performance • Integrations with the Ecosystem • Security by Default • Meeting Compliance Standards At Chaser, our mission is to reduce your time to market by building defensive components that: • Operate on modern infrastructure with native aesthetic and integrations • Work without friction in a collaborative setting such as DevOps, Agile and Squads • Are built on views of cybersecurity analysts on emerging threats • Meet industry recognised cybersecurity standards out of the box
1 to 10 staff
Checksec
CheckSec is a UK based provider of security services and technologies, with a global focus. We provide services and solutions to help our customers manage their security requirements. Our customers include security consultancies and security consumers based in Europe, the US, Africa and the Middle East. We started CheckSec because we believed there were many opportunities to improve the delivery of security assessments. Our first product, Canopy, incorporates a number of these improvements for our clients. For general enquires, please contact info@checksec.com
1 to 10 staff
Clear Cut Cyber Ltd
We think differently about risk
1 to 10 staff
Clearfin Security
Clearfin is dedicated to providing highly effective yet affordable information security services, enabling businesses of all kinds to gain a foothold in the evolving cyber security landscape.
1 to 10 staff
Countershadow
CounterShadow is redefining the cybersecurity landscape as the future of agentic cybersecurity. Powered by our proprietary AI, AMI, CounterShadow is built to autonomously triage, investigate, and respond to cyber threats with precision and speed, reducing investigation and response times to mere seconds. Designed for both SaaS and on-premise deployment, our platform seamlessly integrates with your existing security stack, empowering organizations to proactively combat emerging threats. In today’s complex digital environment, Security Operations Centers (SOCs) are overwhelmed by thousands of daily alerts, often leaving critical threats uninvestigated. CounterShadow’s AI eliminates this bottleneck by operating tirelessly, 24/7, to reduce alert fatigue, enhance decision-making, and ensure your organization remains secure. Whether you’re an MSSP managing multiple clients or an enterprise seeking scalable solutions, CounterShadow adapts to your needs with ease. Our platform’s ability to analyze data, detect patterns, and respond autonomously means you can achieve cyber resilience without the need for excessive human intervention. With a dynamic scaling model, flexible deployment options, and seamless integration with legacy and next-gen tools, CounterShadow is the trusted choice for those looking to secure their networks, endpoints, cloud infrastructure, and beyond. Experience unparalleled efficiency, cost savings, and confidence in your security operations. CounterShadow isn’t just another cybersecurity solution—it’s a game-changer for organizations seeking to stay ahead in an ever-evolving threat landscape. Join us and Automate Your SOC In A Blink Of Ai
1 to 10 staff
Cribb Cyber Security A Clipeum It Company
CRIBB Cyber Security is an official certification body backed by the UK government. We have dedicated cyber security professionals with exceptional experience and knowledge to help you take the pain and stress away. With Cyber Security risks on the rise due to the sheer volume of cyber attacks in the World, it is clear that companies large and small need help and guidance. Neither in-house IT departments nor 'standard' outsourcing companies are as trained or as focused on Cyber Security as we are - we live and breathe it. CRIBB has professionals with all the know-how required to help educate your staff and to protect your data, with a simple mantra at the heart of everything we do: Be careful - Be defensive - Be compliant - Be secure We are fully trained to properly assess risk, mitigate dangers and help keep your company and it's data safe and secure.
1 to 10 staff
Crusade Computer Solutions Ltd
Crusade Computer Solutions Limited is an on-premise or cloud Computer Solutions provider located in Norton Canes, Cannock, Staffordshire, UK. We provide a range of system monitoring and support services so you can get the assistance you need without the expense of employing a full-time IT manager. Whether you’re looking for network, hardware or software support, we have just what you’re looking for, and we’ll provide you with a dedicated Account Manager too. We can monitor your server and deal with any issues that arise with your network immediately, we also provide regular on-site network checks. Additionally we can troubleshoot hardware issues by telephone and send engineers out to fix more complex problems. Since we have built a reputation for building and maintaining excellent relationships with all our customers, Crusade believe's that if you want to ensure that business is booming, it’s vital to have a reliable IT support system in place – and that’s where we come in.
1 to 10 staff
Cyber Centre Of Excellence
The Cyber Centre of Excellence (CCOE) is an initiative aimed at all local authorities and UK public bodies to help them stay abreast of cyber threats and give them access to military-grade protection at high street prices. It will be able to assist with the full remit of what an organisation needs to do and know to stay as cyber secure as possible. Sitting behind the CCOE is an Advisory Forum of some of the UK’s leading experts in cyber security. This group will keep the CCOE up to date with threats and abreast of new innovations.
11 to 50 staff
Cyber Helmets
Building cybersecurity proficiency through effective, expert-led, hands-on, and custom-built training to deliver real impact where it matters most: At Cyber Helmets, we believe cybersecurity training must mirror the real world, because your adversary already does. That’s why our programs are built by field-proven professionals: red-teamers, SOC leaders, and incident-response operators: Whether you’re hardening a cloud-native stack, defending critical infrastructure, or preparing your SOC for live incident response we build simulations, threat emulations, and full-spectrum exercises designed to match your environment, attack surface, and security priorities: A roadmap that transforms training into performance. Our Training Development Process (TDP) is a continuous, skills-based framework designed to keep teams sharp, confident, and ready under pressure. Built around a structured lifecycle, it ensures your people don’t just train, they learn, apply, and evolve in alignment with your business objectives and real-world challenges. Here’s what sets our training apart: Our Training Development Process Custom-built content and labs Backed by top-tier tools and platforms 🧑 Designed and taught by practitioners
1 to 10 staff
Cyber Sense
NCSC Assured Service Provider and Cyber Essentials Plus Certification Body. At Cyber Sense, we are committed to empowering businesses to thrive with the assurance that their critical systems and sensitive data are robustly protected. As a leading cyber advisor, our ethos is centred on enhancing security postures effectively and efficiently, without the heavy reliance on costly products. Our diverse expertise spans multiple industries, equipping us to address all your cybersecurity concerns. From bolstering defenses against emerging threats to ensuring compliance with stringent regulations like Cyber Essentials and ISO 27001, we are your go-to partner. We adopt a proactive strategy, meticulously designed to minimise the likelihood and impact of cyber incidents. Our services include comprehensive Penetration Testing (covering Web Application, API, and more), OSINT Investigations, Phishing Simulations and fortifying Microsoft environments for businesses. Our support extends to helping organisations align with relevant regulations such as Cyber Essentials, ensuring a seamless journey towards certification. Furthermore, our Cyber Security-as-a-Service offers ongoing assistance, keeping your business ahead of the curve in a rapidly evolving digital landscape. We recognise that challenges are inevitable. When things go awry, our skilled team is ready to provide swift and effective incident response and disaster recovery solutions, ensuring minimal disruption and a quick return to normal operations.#cybersecurity #cyberessentials #penetrationtesting #informationsecurity #gdpr #iso27001 #microsoft365 #zerotrust #riskmanagement #osint
1 to 10 staff
Cybercommand Private Limited
Cyber Command: Your Trusted MSSP for comprehensive Cybersecurity solutions In the digital age, cybersecurity is paramount. Cyber Command, a Managed Security Services Provider (MSSP), is your unwavering partner in safeguarding against evolving cyber threats. Who We Are Cyber Command goes beyond the norm, emerging as your strategic cybersecurity ally. Our mission is clear: Empower organizations with tailored, proactive, and holistic cybersecurity solutions to protect their assets, data, and reputation. Our Services 1. Security Monitoring- SOC Consulting:Build and manage a tailored SOC- MDR as a Service: Advanced threat detection and response- SOC as a Service:24/7 threat detection and response. Security Consulting- Maturity Assessment: Identify security posture and improvement roadmap- Strategy Development: Craft a tailored, efficient security strategy- Auditing and Risk Assessment: Prepare for audits and reduce vulnerabilities. Security Engineering- Managed Security Services: Efficiently manage security technologies- Security Architecture: Design secure IT infrastructure- Secure Cloud Transformation: Transition to the cloud securely. Penetration Testing- App Penetration Testing:Identify app vulnerabilities- Network Penetration Testing:Discover infrastructure weaknesses- Vulnerability Management: Simplify vulnerability handling. CISO as a Service- Info Security Advisory:Get tailored guidance- Virtual CISO:Access security leadership without a full-time hire. Cyber Security Awareness- On-Demand Training:Empower employees with cybersecurity training- Instructor-Led Training:Comprehensive, instructor-led sessions. Talent Services- Staff Augmentation: Fill staffing gaps quickly- Offshore Staff Support:Access skilled experts from our support centers.
11 to 50 staff
Cyberlegion
Cyber Legion > What We Do Cyber Legion is a UK-based cybersecurity company delivering expert-led, automated, and scalable security testing and advisory services. We specialize in penetration testing, secure-by-design product security, and compliance-driven assessments for organizations across the globe. Our Approach We integrate deep technical expertise with intelligent automation to deliver precise, cost-effective, and customized cybersecurity solutions. Through our intuitive client web portal, we simplify the end-to-end management of security testing, vulnerability assessments, and continuous risk reduction. Our Focus Areas Web & API Penetration Testing Secure Product Development Threat Modeling & Risk Assessments Application Security Reviews Compliance & Security Maturity Mapping (ISO 27001, NIST, OWASP, etc.) DevSecOps Integration & Automation More Than Just Testing Cyber Legion is committed to building a security-aware digital ecosystem. Beyond service delivery, we invest in security education, tools, and frameworks that empower teams and reduce organizational cyber risk at scale. Global Reach, Tailored Execution Serving clients across the UK, EU, and beyond, Cyber Legion delivers targeted, high-impact security outcomes through agile delivery models and industry-aligned expertise. Connect & Learn Join our mission to simplify cybersecurity, secure digital products, and cultivate resilience. Follow Cyber Legion for actionable insights, frameworks, and innovations driving the future of cybersecurity.
1 to 10 staff
Cyberone
CyberOne is one of only 100 global Microsoft partners recognised with Microsoft-Verified Managed XDR solution status. As a Microsoft Security Solution Partner and Microsoft Intelligent Security Association member, we deliver lead AI-augmented Managed eXtended Detection & Response (MXDR) services, powered by Microsoft’s market-leading security technologies and delivered by CyberOne’s accredited experts, helping organisations move from risk to resilience. Our AssureMAP framework provides a structured pathway to resilience, helping you assess cyber maturity, pinpoint risk and define clear, measurable outcomes. From there, organisations transition seamlessly into Assure 365, our fully managed Microsoft Security Services across Identity, MXDR, Endpoint, XDR and Data Security as a Service. With 24x7 Global SOC coverage, NCSC and CREST accreditations, and guaranteed SLAs, CyberOne combines Microsoft Security with expert Consulting, Professional and Managed Services to protect operations, achieve compliance and build lasting resilience. Everything we do is guided by our values: Customer Defence Focused - Putting client protection at the heart of every decision Relentless Innovation - Pushing boundaries to stay ahead of evolving threats Act Kind, Be Kind - Building trust through respect and transparency Be Awesome, Demand Awesome - Setting the highest standards for ourselves and our clients Execute 100%- Delivering measurable results with precision and accountability Since 2005, our mission has been simple: empowering organisations to thrive on their journey from risk to resilience.
51 to 200 staff
Cybersafe A Securitybridge Company
CyberSafe is the original commercial provider of Kerberos-based security solutions, with over 20 years' experience, and focused on providing innovative security solutions for SAP business applications. The TrustBroker product family utilise your existing Active Directory infrastructure to offer user authentication, encryption, and Secure Single Sign-On (SSO). The products also have the flexibility to support many SAP business applications - whether on-premise or in a cloud, and being accessed from a user’s personal workstation, shared workstations, or mobile devices. The user only needs one identity (their Active Directory account) and one credential (such as a password). When users logon to SAP applications they can be authenticated using the Kerberos credentials already issued during their workstation or device logon (Secure Single Sign-On), or be prompted to enter their domain account credentials each time they logon (Secure Multiple Sign-On). Since users only have to remember the credentials for their Active Directory domain account, they are much happier and more productive, as they can spend less time trying to remember the correct password, or waiting for the help desk to reset a password, and more time doing the job they are paid to do! The TrustBroker products have a very quick ROI and will significantly reduce costs, improve user productivity, and assist with regulatory compliance.
11 to 50 staff
Cybersafehaven
CYBERSAFEHAVEN CONSULTING Boutique consulting firm offering customised cybersecurity and blockchain solutions. Our offerings include: 1) vendor-agnostic cybersecurity solutions for businesses tailored to their needs. 2) AppSec & DevSecOps consulting for start-ups and SMEs to shift-left their security practices 3) Unique offerings like proprietary threat modelling frameworks and risk management CYBERSAFEHAVEN TECHNOLOGIES: 1. ThreatProwler - a full-fledged CTEM SaaS solution exclusively for small & medium businesses that covers infrastructure security, information security and application security 2. CYBERRISK4BOARD® - one of a kind offering for larger Enterprises. This SaaS solution enables companies and conglomerates to effectively translate the cyber posture details into business metrics and help Boards make faster and effective decisions.
1 to 10 staff
Cybrgen Limited
At Cybrgen, we envision a secure digital landscape where businesses of all sizes thrive with confidence. Leveraging over three decades of expertise from global firms, our team of specialists excels in Governance, Risk, and Compliance (GRC), Cybersecurity Architecture, Third-Party Security Assessments, and more. We are dedicated to delivering tailored, efficient, and innovative cybersecurity solutions to organizations across industries. Whether you're a growing SaaS startup or a global enterprise, our services—ranging from Fractional CISO and SOC 2 readiness to penetration testing and incident response—are designed to meet your unique security needs. Our approach combines technical excellence, customer focus, and collaboration to ensure your business remains resilient in an ever-evolving threat landscape. We are proud to partner with our clients to protect their digital assets, enhance compliance, and drive trust among their stakeholders. We have: Expertise in globally recognized frameworks like SOC 2, ISO 27001, PCI DSS, and NIST CSF. Proven track record in helping businesses navigate complex regulatory landscapes and security challenges. Empathy and flexibility to adapt to your unique requirements and timelines. Together, let’s forge a safer digital future.
1 to 10 staff
Cynam
Welcome to the CyNam community! Cheltenham's hub for cyber security and technology – connecting diverse minds to enable secure innovation and growth. CyNam is a network that connects start-ups, investors, government, businesses, and academia to foster an environment for collaboration, knowledge sharing and innovation. CyNam offers people and organisations access to resources, partnerships and knowledge to succeed. Together, we're building a secure digital future that addresses global challenges and drives economic growth. Learn more about what we do and how to get involved. Our Story: Cheltenham has a rich history as a hub for secure innovation, anchored by the presence of GCHQ, and the largest concentration of cyber security businesses outside of London. CyNam, born as a modest meetup group in 2015, rapidly expanded in response to the region's burgeoning cyber ecosystem. Today, with a thriving community of over members, CyNam is at the heart of Cheltenham's secure technology ecosystem, driving innovation, collaboration, and economic growth.
1 to 10 staff
Cypaw
Privacy app || London Online Privacy for Everyone Join the Movement.#Privacy #CyberSecurity #OnlineData #App
1 to 10 staff
Cyuber Ltd
Modern businesses face an increasing risk from cyber threats, complex technologies, compliance, regulation, not to mention business transformations and market pressures. Information security is no longer a concern for just the IT department. An effective Enterprise Security Program (ESP) covers every aspect of the business in order to deal with IT Security in full. Our goal is to help your organisation build an effective Enterprise Security Program from the initial scope as you build your requirements and learn about your risk appetite, through to delivering a mature system that underpins the relationship between the business owners, IT Team and Chief Information Security Officer (CISO). Cyuber was created by Information Security specialist consultants that have many years of experience in both public and private sector who have core abilities around Security Architecture and the ability to build solutions and services to address our client requirements. Cyuber have professionally trained and certified consultants at the helm of the company that hold Information Security Masters, CISSP, CEH and TOGAF certifications as well as holding security clearance up to DV level. We have adopted a secure supply chain model in which we have a trusted associate model for professional service delivery so we can call upon specialist partners for the right delivery to clients.
1 to 10 staff
Dbam Systems Ltd
DBAM's Research and Development Centre is located in the United Kingdom, where the Exbander Precision products are designed, assembled and tested. The EP range addresses the needs of customers from small single site installations to large headquarters, data centres, network operation centers and multi-site operations where high availability is vital to the success of the business. Through this value-added channel we have delivered business critical solutions to a fast growing customer base that includes the largest cable operator in Europe, the largest European satellite communications operator and FTSE 350 companies. Our customer base comprises end-users in the finance, Telecommunications, Technology, Engineering, Professional services, Interactive Online Gaming, Media, Online Interactive Sales, Legal, Food Processing, Healthcare, Mobile Project Support, VoIP System, Manufacturing, Pharmaceuticals, Utilities, Telecom, Government, Retail, Architecture and Construction industries. Our solutions ensure the flow of every type of application that uses the Internet. They are vital for mission critical applications for businesses including, patient care systems, business applications (such as SAP, Oracle, Microsoft, Citrix), voice applications (Soft Switch/IP telephony) and video technologies. Exbander Precision products optimise and accelerate this traffic, whilst simplifying network administration and ensuring maximum performance from the connection.
11 to 50 staff
Defused
Managed Honeypots and Cyber Deception for Early-warning Threat Intelligence Access free honeypot intel: http://console.defusedcyber.com/signup
1 to 10 staff
Dogsbody Technology Ltd
Dogsbody Technology takes the pain away from building, securing and maintaining Linux servers. We've been keeping data safe and platforms secure since 2003. As the name Dogsbody implies, our solutions covers a wide range of skills and abilities. We work with your business to streamline the existing the infrastructure you've invested in.
1 to 10 staff
