The United Kingdom is home to thousands of cybersecurity companies. They make up a sector contributing to public and national security while also drawing the gaze of investors. According to the U.K.’s Department of Science, Innovation and Technology, a majority of companies provide services like managed security services, network security and threat monitoring and are likely to contribute to the industry’s double-digit growth over the next many years. As the nation’s cybersecurity industry grows, these are some of the top companies already operating in that sector.
Top Cybersecurity Companies in the UK to Know
- Arrow Electronics
- Nisos
- The Aerospace Corporation
- CrowdStrike
- Immersive Labs
- Darktrace
- Netcraft
Top Cybersecurity Companies in the UK
BeyondTrust offers privileged access management software that helps businesses secure and manage privileges in traditional, cloud and hybrid environments. It has more than 20,000 customers, including 78 of the Fortune 100. BeyondTrust’s UK office is in Manchester. It employs more than 1,000 people.
Rapid7 offers a range of solutions and services designed to help businesses more effectively manage their digital security posture. Its platform is equipped with AI-enabled capabilities that customers rely on for identifying vulnerabilities across their entire IT infrastructure and responding to cyber attacks.
Although specializing in aerospace manufacturing, as its name suggests, The Aerospace Corporation also provides several cybersecurity solutions. According to the company, its cybersecurity subdivision tests the resilience of ground systems, networks and software. It also develops cyber strategies and prototypes for its customer’s space missions.
London-based Risk Ledger makes a software platform for real-time, third-party supply chain security. Its customers include Zendesk, Cheshire Constabulary and United Utilities. The platform’s user base has doubled each year since it was launched in 2020, and in 2023, it revealed a £6.25 million series A funding round led by Mercia Ventures.
ELEKS creates bespoke software solutions for businesses of all sizes. Its cybersecurity offerings include security assessments, high-visibility application security and consulting. ELEKS is based in Estonia and has twenty offices around the world, including one on Fore Street Avenue in London.
Arrow Electronics is a manufacturer of electronic components, which are used in computing and other hardware tech applications. Its components are built into devices for network security, identity and access management, content security, vulnerability management, threat protection, endpoint security and other mission-critical cybersecurity contexts. The company has a dedicated team that works solely on security, offering IoT cybersecurity services to augment its products.
Snyk is a cybersecurity company that helps developers secure their custom code, open-source dependencies and cloud infrastructure. Its developer security platform aims to integrate seamlessly with development workflows, allowing for direct collaboration with security teams to detect and resolve vulnerabilities quickly. Headquartered in Boston, Snyk operates globally, providing tools like Snyk Code and Snyk AppRisk to enhance app security and manage application risks.
Fortinet makes network security solutions, particularly its marquee product, the FortiGate firewall, which provides advanced threat protection through network traffic filtering. It offers over 50 enterprise-grade security products to more than 805,000 customers around the world. Fortinet’s UK office is in Reading.
CrowdStrike is a cloud-native cybersecurity company that protects clients from endpoint threats while identifying breaches and other cloud-related cyberattacks. It uses artificial intelligence through its CrowdStrike Falcon solutions to learn about nascent security threats and prevent similar incidents for its clients. CrowdStrike is headquartered in the United States but has expanded rapidly throughout Europe and India.
IT and cybersecurity firm Smartdesc specializes in services for nonprofit organizations, including charities, social enterprises and the public sector. Its clients include YMCA, WaterAid and Terrence Higgins Trust. Smartdesc’s offices are on Whitechapel High Street in London.
Hexens specializes in blockchain security, surveying for potential vulnerabilities within blockchain technologies and smart contracts. It caters to clients in the decentralized finance sector, including Polygon, RiscZero and CoinsPaid. Hexens was founded in London in 2021.
Global cybersecurity and software escrow company NCC Group helps businesses protect their data and software. It works with technology and manufacturing businesses, financial institutions and national infrastructure providers. In the UK, NCC Group advises the government on security for the country’s telecom networks. The company is headquartered in Manchester, and has more than 35 locations around the world.
Imprivata allows organizations to provide their teams with third-party identity and compliant remote access management. It aims to increase the ability to connect from anywhere and increase overall security. The company has its European headquarters in Uxbridge.
Sophos makes cybersecurity software and hardware, including network security, managed detection and response programs, endpoint security and a security operations platform. Its products are used by more than 600,000 organizations and more than 100 million users around the world. Sophos is headquartered in Oxford.
Netcraft’s cybersecurity platform provides businesses with threat detection and takedown services. It also generates useful reports that visualize individual security threats and notifies users when it detects new attacks on a client’s network.
Immersive Labs is a U.K.-founded cybersecurity firm providing solutions for individuals, teams and businesses. Through its platform, the company provides cloud security, candidate screening and simulation services. Immersive Labs takes a people-centric approach to security, meaning that it spends considerable effort educating employees and users about cybersecurity best practices.
Nisos offers bespoke cybersecurity services through its Managed Intelligence system, which works with a client’s existing security team to create a protocol that considers when to act proactively and when to be reactive. Nisos serves corporate interests, retail brands and other businesses that rely on information security to make profits.
ForgeRock provides a secure identity management platform that includes identity management, access management, identity intelligence and directory services. Its open-source software allows organizations to manage user access across devices, digital services and systems. ForgeRock is headquartered in San Francisco and has 14 locations around the world, including London and Bristol in the UK.
Using AI, Darktrace provides comprehensive cybersecurity solutions for an array of digital technologies. The company is able to protect entire networks from cloud services to email and applications. Its lineup of products includes Prevent, Detect, Respond and Heal.
Cloud-based email security company Tessian uses machine learning technology to stop data breaches and security threats in email. Its platform can identify indicators of attack like phishing, identity theft and business email compromise. Tessian was founded in 2013 and has offices in Boston, San Francisco and London.
British defense, aerospace and security company BAE Systems provides cybersecurity services to businesses and governments around the world. Its services include threat advisory, incident response, automated cyber hunting solutions and secure software development. BAE Systems’ UK headquarters is in London, with an additional location in Hampshire.
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