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
Cyberfort
At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure, resilient and compliant. Our business offers National Cyber Security Centre assured Consultancy services, Identification and Protection against cyber-attacks, proactive Detection and Response to security incidents through our security operations centre and a Secure and Recover set of Cloud solutions which keeps data safely stored, managed and available 24/7/365. Over the past 20 years we have combined our market leading accreditations, peerless cyber security expertise, strong technology partnerships, investment in our future cyber professionals and secure locations to deliver a cyber security experience for customers which enables them to achieve their business and technology goals in an ever-changing digital world.
51 to 200 staff
Cyberowl
CyberOwl helps asset operators in the maritime and critical national infrastructure sectors gain visibility, cyber security and cyber compliance of systems on their distributed, remote assets. We provide technologies, a managed service and specific cyber security advisory services to support the asset operator. Our technologies provide near-real-time visibility of the behaviours of assets and their communication patterns. They are deployed to identify and inventory assets on the IT and OT networks of these operational platforms. They detect and raise early warning of cyber attack tactics, techniques and procedures; identify anomalous and suspicious activity; and monitor for non-compliance with cyber security policies. These are delivered through a modular, distributed architecture that is optimised for environments facing the challenges of intermittent connectivity, bandwidth constraints and the need for remote management. Our managed service provides assurance and support to asset operators with any level of cyber expertise. We support security operations through alert verification, triaging and providing guidance on appropriate cyber incident response actions. CyberOwl was shortlisted for the Lloyds Science of Risk Prize, selected into the first GCHQ Cyber Accelerator Programme and is part of the UK Government's centre of excellence for cyber security innovation - the London Office for Rapid Cybersecurity Advancement (LORCA).
11 to 50 staff
Cypfer
Global Cyber Certainty Champions, in an uncertain digital world. We provide rapid recovery from attacks, comprehensive protection strategies, and ongoing defense against today's sophisticated threats.
51 to 200 staff
Digitalxraid
At DigitalXRAID, we’re more than just a managed security services provider – we’re your trusted partner in safeguarding your business from cyber threats. With over 25 years of experience, we’re proud to offer cutting-edge services in Vulnerability Management, Penetration Testing, Red Team Exercises, Information Security, Cybersecurity Maturity Assessments, Table-Top Exercises, Incident Response, EDR & MDR with a CREST Accredited, fully managed Security Operations Centre (SOC) to keep your business protected 24/7. DigitalXRAID is part of a group of UK-based cyber security, compliance, digital forensics and e-Discovery services specialists called Xypher, bringing more than a decade of experience and extensive certified expertise. Together, the group delivers the most comprehensive support across the full cyber resilience lifecycle. This powerful alliance - combining the highest quality solutions, expertise and a shared commitment to putting customers first - is focused on helping both public and private sector clients build robust, long-term cyber resilience, and face today’s risks with confidence. What sets us apart? Our relentless drive to ensure you don’t just navigate the complex world of cyber security, but conquer it. We don’t just respond to threats; we proactively protect your business so you can focus on growth without worry. Because at the end of the day, our mission is simple: Don’t Let The Bad Guys Win. Choose DigitalXRAID for peace of mind, a team that genuinely cares about your security, and expertise that’s always at the forefront. Let’s stay two steps ahead together. Phone us on 0800 090 3734 or email info@digitalxraid.com.
51 to 200 staff
Infinigate Uk & Ireland
The Infinigate Group is a value-added distributor, fully committed to sustainable, leading-edge cybersecurity solutions. Founded in 1996 in Switzerland, it has grown to incorporate the entire EMEA region, with offices in 30 countries and partners in more than 50. Our more than 1,200 dedicated employees, half of them with in-depth technical expertise, are passionate about best-of-breed cybersecurity, secure network and secure cloud for SMB and enterprise market segments, to protect on-premise and cloud-based IT infrastructure. The Infinigate Group relies on strong country organisations, which adapt to the needs of their respective partners, MSSPs and vendors, by providing technical, marketing, sales and professional services. For additional information visit
1001 to 5000 staff
Interrupt Labs
We’re here to provide world-leading vulnerability research and capabilities! Interrupt labs is made up of amazing people with backgrounds ranging across the computer security landscape. This blend of knowledge gives Interrupt Labs the backbone it needs to jump into any new challenge. From working with telecoms, banks, government and more, the team at Interrupt Labs are experienced in vulnerability research in all its forms. Within these environments, the team are well versed in the implementation of bespoke and nuanced approaches through their journey. Everyone here at Interrupt Labs wants to be the best. We’re making our way to the forefront of vulnerability research and want to bring you along with us!
51 to 200 staff
Istorage Limited
iStorage is a global leader in the development of innovative, easy-to-use and ultra-secure hardware-encrypted data storage and cloud encryption solutions. Our award-winning products empower organisations and individuals to protect sensitive information, comply with data protection regulations, and mitigate the risks of data breaches. We are on a mission to make data security simple, accessible, and uncompromising. By combining cutting-edge encryption technology with user-friendly design, we provide transformative solutions that enable businesses, governments, and consumers worldwide to take control of their data—anytime, anywhere. We offer businesses 30 days evaluation, so feel free to get in touch with us about your data storage questions or requirements. Follow along for news, company updates, and more.
11 to 50 staff
Nexor
Nexor is a Secure Information Exchange Specialist offering High Assurance threat and risk mitigation expertise and solutions into complex and sensitive networks globally. Our customers benefit from a combination of our Research & Advisory Services, delivered by subject matter experts trusted to lead MOD research projects into the future of cross domain technology, and a highly customisable and flexible secure information exchange product portfolio aligned with NCSC import/export patterns and High Assurance principles. Nexor’s agile development capability also complements our advisory services to ensure that the solutions we provide are tailored to enable our customers’ business and security objectives, adeptly balancing risk with budget and functionality.
51 to 200 staff
Push Security
Push Security is the most advanced security tool in the browser, delivering real-time detection and response where today’s work (and attacks) actually happen. Push gives defenders visibility into user activity, attacker behavior, and browser-level risk. It detects threats like phishing, session hijacking, ClickFix-style attacks, and malicious browser extensions; enforces secure login practices like MFA and SSO; and provides the telemetry teams need to investigate fast. Built on continuous research and offensive testing, Push sees what attackers see, and stops them in their tracks. That’s why leading security teams trust Push to bring visibility and control to one of the most critical blind spots in the enterprise.
51 to 200 staff
Razorsecure
RazorSecure offers products and services to enhance railway cyber security by protecting networks and monitoring key systems. We deliver this through our flexible approach to cyber security, designed specifically for rolling stock, signalling and infrastructure systems. We’ve learned from working with industry leading companies that everyone has a unique set of requirements and challenges to overcome, so we have tailored our solution to provide the flexibility to address even the most difficult environments.
11 to 50 staff
Red Helix
Red Helix provides clarity, confidence and certainty along your digital, cyber security and network journey. Our mission is to keep businesses constantly resilient and protected, so that they can remain focused on their business and meet growing customer needs in a competitive and evolving landscape. Red Helix is a market leader in network performance and cybersecurity – providing a calm and constant source of protection and optimisation for mission critical platforms across the UK. We are backed by deep expertise and a proven heritage, which positions us as a trusted advisor to companies across a wide range of vertical sectors – from mid-sized organisations to some of the biggest blue-chip brands in the country.
51 to 200 staff
Riversafe
We deliver services in Cybersecurity, Application Security and DevOps and are trusted by some of the world’s leading brands to maximise the value of their security investments and to improve the efficiency of their software delivery process. Our expertise and experience in technical delivery across multiple industry sectors is what sets us apart, along with our flexible and tailored partnership approach to ensure our customers’ success, putting security at the heart of everything we do.
51 to 200 staff
Sapphire
Sapphire delivers comprehensive cyber solutions tailored to your needs, spanning across consultancy, managed services, IT/OT and beyond. Our team of experts integrates seamlessly with yours, empowering you to protect your digital infrastructure, mitigate risks, and maintain compliance. From proactive threat monitoring to strategic guidance, we are your trusted partner every step of the way, ensuring the security of your operations, people, and reputation.
51 to 200 staff
Security Blue Team
Security Blue Team is the leading practical defensive cybersecurity training company, offering free courses, blue team certifications, and a portfolio of platforms to support both corporate clients and individual learners, such as a defensive cyber range Blue Team Labs Online (https://blueteamlabs.online) and a state-of-the-art job board CySec Careers (https://cysec.careers).
11 to 50 staff
Tcpwave
TCPWave is a core network development company that delivers a full suite of DDI Solutions - DNS, DHCP, IPAM, and ADC Management with advanced edge-over internet security employing innovative technologies and agile approaches. The technology center is headquartered in Gachibowli, Hyderabad, India and in Princeton, New Jersey, USA providing solutions, professional services, and support all over the world by partnering with business affiliates spread across the globe. TCPWave’s networking solutions are flexible and can scale as fast as your business needs them to. We offer an automation platform, extensive API library, and command line interface that delivers the privileges to simplify your complex business logic and yield maximum benefits with minimal effort. TCPWave is a proven expert to control the risks and reduce the complexity of challenges organizations face with modern key IT initiatives such as cloud applications, virtualization, digital transformation, and migrations. TCPWave understands the impact of poor networking platforms and aims to provide customized, smart, simple, and safe solutions that combine the server and router technologies to design, implement and manage the appliances for organizations regardless of industry type and size. The core strength of TCPWave is to ensure operational efficiency through dedicated customer support. With 24/7/365 customized support, TCPWave strives to meet the exclusive needs of your environment by employing unique tools and methodologies to protect your business from legacy errors or misconfiguration. Mission: TCPWave is committed to delivering innovative and reliable solutions to meet our client’s business needs with the utmost quality, driven by passionate minds and fostering a trusting partnership with customers. Vision: TCPWave enables business growth and success by empowering the deployment of efficient solutions and delivering value-centred services driven by the “Innovation at its best” approach.
51 to 200 staff
Tmb Systems Limited
At TMB we specialise in delivering co-managed technology and security solutions tailored for the hospitality sector. Our team delivers secure, seamless and scalable services that protect operations and empower innovation.
51 to 200 staff
Venari Security
Venari Security provides organisations with advanced visibility into their encrypted attack surface, ensuring regulatory compliance and privacy adherence through our cryptographic discovery tool. Our focus is on crypto agility which helps you assess both external and internal cryptographic risks, preparing your business now and for the quantum future.
51 to 200 staff
Advent Im
Advent IM is the UK’s leading independent GRC information and physical security consultancy and training provider. We deliver expert, vendor-neutral advice, assurance, and training to help organisations protect their most critical assets and meet compliance with confidence. Our services include: • Information Security Management (ISO 27001:2022) • AI Management Systems (ISO 42001:2023) • Data Protection / UK GDPR & MyDPO • Cyber Essentials & Cyber Essentials Plus • Business Continuity • Technology & Information Risk Management • Supply Chain Assurance • MoD Supplier Security Services • Secure by Design (MoD, Police, Gov) • NHS DSP Toolkit • PCI DSS Compliance • Police Cyber Security • Network Penetration Testing • Red Teaming & Physical Penetration Testing • Physical Security Audits & Testing • Surveillance Camera Consulting • MySecurityManager – Security Manager as a Service We also offer a wide range of training: • SIRO & IAO Training • Data Protection for Non-DPOs • Data (Use and Access) Act Training • Artificial Intelligence Security Awareness • Bespoke Training – Build Your Own Course! We work across all sectors nationwide, helping clients identify and mitigate risks through tailored, best-practice solutions. In addition, our Advent IM Outsourced Solutions service provides flexible, high-quality security roles from a trusted network of professionals—saving you time, money, and energy without compromising on quality.
11 to 50 staff
Binalyze
Binalyze is an innovator in Investigation and Response Automation. With evidence collected, our Timeline, Triage, and Drone features help you to collaborate and complete incident response investigations quickly and dramatically reduce dwell time. AIR saves you time, reduces cybersecurity operational costs, and helps you prevent the financial and reputational losses associated with cyber attacks.
51 to 200 staff
Crypto Quantique
Crypto Quantique is building the most secure end-to-end IoT security platform. We are a transformative cybersecurity technology company, using the most advanced techniques in cryptography and quantum physics, designed to ensure that both device security becomes foundational and end-to-end IoT security standard practice. Crypto Quantique has proven the world's first quantum driven security on a chip and its IP can generate multiple, unique, unforgeable cryptographic keys that never need to be stored and used independently by multiple applications on demand. When combined with their cryptographic APIs and key management system the solution creates a natural bridge between silicon, device, software and solutions providers. Crypto Quantique’s technology products, platforms, and services provide the strongest end-to-end security throughout any IoT network. Our quantum driven cybersecurity design overcomes existing state-of-the art limitations by providing: • Quantum driven security foundation offering a complete solution for identifying, securing and managing IoT devices while reducing cost and lowering risk. • Very high entropy multi-use, unforgeable, tamper resistant cryptographic keys generated on-demand direct from silicon using quantum tunneling. • Quantum-safe derived keys, futureproofing IoT security. • Cloud ready multi-use Key Management System offering frictionless device enrollment and zero-trust, zero-touch provisioning and ongoing lifecycle management. Crypto Quantique was founded by technologists and visionaries Dr. Shahram Mossayebi, PhD in post-quantum cryptography and Dr. Patrick Camilleri, PhD in microelectronics engineering and complex systems.
11 to 50 staff
Grosvenor Technology
We develop, manufacture and provide Access Control and Workforce Management solutions globally. We deliver more than just secure and smart environments, we create a bespoke solution tailored to an organisations working requirements. Since our establishment in 1989, we have been working in partnership with our customers, providing state of the art open architecture solutions and building relationships that endure; from specification to installation and provide ongoing support for our legacy products. Access Control Following many years of success with our Janus/Sateon Siteguard brands, we now have launched Janus C4, our newest breakthrough in access control. Janus C4 software is multilingual and includes a full array of features, as well as being easy to install, cost-effective and space-efficient. This makes the solution easily scalable for systems of any size, located anywhere in the world. It also makes maintenance and ongoing support much easier and it's able to integrate with third-party systems such as fire, CCTV and an array of other databases and systems. This means Janus C4 can deliver a safe, automated and secure environment for occupants. Workforce Management We manufacturer advanced Time and Attendance data collection terminals. We ensure businesses can manage their workforces in a non-evasive manner whilst enabling real-time reporting for informed decisions relating to safety, security and effectiveness of their workforce. These terminals form part of wide-area-network management systems for the control of workforces across multiple sites and areas. We also supply interface and integration software, Custom Exchange and IT Assist, designed to communicate with applications developed by our partners or potential partners; these advanced integration tools create a speedy and professional development environment whilst also providing ongoing maintenance. Grosvenor Technology Limited is a division of Newmark Security PLC. info@grosvenortechnology
51 to 200 staff
Idecsi
French startup in cybersecurity, IDECSI delivers cutting-edge technology and engages all employees in the security system for effective and cost-efficient data protection. Immediately operational, Idecsi now offers a complete range of solutions allowing you to protect all your resources on all key applications: Microsoft Teams, SharePoint Online, Exchange, Onedrive. You benefit from continuous protection that detects in real time every malicious access or setting (internal or external). With MyDataSecurity, users have the means to control and monitor the security of their data and that of the company. IDECSI has been chosen by many companies in all business segments, with units in France and abroad, including 15 Fortune 500 companies and most of the companies from the IDECSI concentre le meilleur de la technologie et permet d'associer les collaborateurs au dispositif de sécurité pour une protection des données efficace et à moindre coût. Grâce à sa plateforme de monitoring et de détection experte, IDECSI augmente la sécurité des données on-premise et sur Microsoft 365, et permet d'améliorer la maitrise des accès, droits, partages et des configurations de l'environnement. Avec MyDataSecurity, le tableau de bord indispensable pour chaque utilisateur, les utilisateurs ont les moyens de gouverner et de suivre la sécurité de leurs données et celles de l’entreprise. Spécialement conçue pour les outils collaboratifs, Microsoft Teams, OneDrive, SharePoint Online, Exchange et les serveurs de fichiers, la solution permet de stopper une malveillance, une compromission et de s'assurer que les données sensibles sont accédées par les bonnes personnes. IDECSI compte désormais de nombreux clients dans tous les secteurs d’activités, déployés en France et à l’international, dont 15 entreprises du Fortune 500 et l’essentiel des entreprises du CAC40.
11 to 50 staff
Jumpsec
Attack to Defend Think like an attacker to protect what matters most. Staying ahead of attackers requires thinking like one. At JUMPSEC, attack informs defence. We are a specialist offensive and defensive cyber security consultancy, delivering deep expertise, innovative capabilities, and tailored solutions that help organisations to transform securely and confidently.
11 to 50 staff
Kynd
KYND offers intuitive, tailored cyber risk solutions designed to make complex risk management simple and actionable. Its platform provides real-time, customised insights that are directly relevant to each user's needs, helping insurers, public entities, financial services organisations, and businesses quickly assess, understand, and mitigate cyber risks.
51 to 200 staff
