April 2026
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Largest Cybersecurity Public Companies in the UK
Benchmark revenue and EBITDA valuation multiples for public comps like
GB Group, NCC Group, Arqit Quantum, Corero Network Security and Intercede Group.
 | GB Group PLC provides identity intelligence solutions through its three divisions Location, Identity, and Fraud. It offers electronic ID Verification services, ID Registration, ID Engage, and ID Trace and Investigates software and services. GB Group's technology supports customers in traditional banking, government, utilities, retail, transport, and newly emerging industries such as eCommerce, online gaming, cryptocurrency, and mobile payments. The company has a geographical presence in the United Kingdom, the United States of America, and Australia and generates revenues from the sale of software and rendering of services. | $3 | -23% | $661M | $754M | 2.0x | 8.1x | ||
| NCC Group PLC is a holding company. The provision of independent advice and services to customers through the provision of software resilience and Cyber Security services. The Group reports its business segment: the Cyber Security division. The reporting segments provide distinct types of service, and within the reporting segments, the operating segment provide a homogeneous group of services. The company operates in the UK, North America, APAC, and Europe, and the majority of revenue comes from the UK. | $2 | -24% | $443M | $457M | 1.1x | 8.7x | ||
| Arqit Quantum Inc is a cybersecurity company that has pioneered a symmetric key agreement technology that makes the communications links of any networked device or data at rest secure against current and future forms of cyber attack - even an attack from a quantum computer. The company delivers its symmetric key agreement technology via its product SKA-Platform. The firm operates in one segment, that is, the provision of cybersecurity services. The company operates and generates its revenue from UK. | $14 | -33% | $224M | $188M | 355.1x | (5.1x) | ||
| Corero Network Security PLC is a network security solutions provider. The company offers Distributed Denial of Service (DDoS) defense solutions for service providers, hosting providers and data centers, managed security service providers, and online enterprises. The company's key products are SmartWall Network Threat Defense System, Datapath protection, SecureWatch Analytics, Scrubbing protection, Edge mitigation, and Cloud mitigation. Geographically, it derives a majority of its revenue from the USA. | $0 | -21% | $86M | $83M | 3.2x | 41.4x | ||
| Intercede Group PLC is an independent developer and supplier of identity and credential management software. Its product portfolio includes MyID, an identity, and credential management system, RapID is the password killer for killer apps, and MyTAM enables Android app developers and service providers to deploy trusted applications to the trusted execution environment simply and cost-effectively. The company serves a diverse range of markets including governments, enterprises, app developers, and service providers. It has operational footprints across the United Kingdom, the Rest of Europe, the Americas, and the Rest of the world. The majority of its revenue is derived from the Americas. | $1 | -38% | $84M | $62M | 2.5x | 8.8x | ||
| NARF Industries PLC is a cybersecurity company. It is focused on building a group capable of offering cybersecurity solutions in the USAÂ and abroad. The Group provides government research and development services (GR&D) and government solutions and services (GS&S). GR&D services principally comprise theoretical research into potential cybersecurity threats along with the development of source code to test cybersecurity defenses against those threats. GS&S services include the development of infrastructure and software to analyze potential threats and seek to reduce risks. | $0 | +11% | $13M | $16M | 5.2x | (7.1x) | ||
| Shearwater Group PLC is a UK-based company focused on providing digital resilience solutions. The company delivers cybersecurity, network monitoring technologies, managed security services, Data Loss Prevention, Identity & Access Security, IT Solutions, Penetration Testing & Red Teaming, and other services. Its operating segment includes software and services. The company generates maximum revenue from the Services segment. Its geographical segments include the United Kingdom(UK) and Europe(excluding the UK), North America, and the Rest of the world, of which the majority of the revenue is derived from the UK. | $1 | -27% | $12M | $9M | 0.2x | (0.8x) | ||
| Median | $1 | -24% | $86M | $83M | 2.5x | 8.1x |
Financial data powered by FactSet and Morningstar. Valuation multiples as of current fiscal year. For more data, start your free trial here.
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