United Kingdom Cybersecurity Providers

Adarma provides managed detection and response and threat intelligence services to UK enterprise clients helping security teams detect, investigate and respond to advanced threats faster.

Appearance is a British security analytics and threat intelligence platform providing automated detection engineering and security event correlation for enterprise SOC teams.

Arqit provides quantum encryption key agreement software protecting communications from future quantum computer attacks through its QuantumCloud symmetric key agreement platform.

BAE Systems is the UK's largest defence contractor, producing military aircraft, naval vessels, armoured vehicles, and electronic warfare systems. The company is a major supplier…

BAE Systems Digital Intelligence provides cyber threat detection, managed security services and intelligence-led defence capabilities to governments and enterprises across the UK and globally.

BAE Systems Digital Intelligence provides AI, data analytics, and cybersecurity solutions for aerospace and defence clients, supporting mission-critical systems and intelligence programmes.

Bridewell is a UK cybersecurity services company providing managed security operations, OT/ICS security, and compliance consulting for critical national infrastructure operators.

BT Group is a British multinational telecommunications company providing fixed-line, broadband, mobile, and enterprise networking services across the UK and internationally.

Claranet is a UK managed services provider privately held by NMT Group, offering cloud, networking, and cybersecurity solutions across Europe.

CyberOwl provides maritime and operational technology cybersecurity monitoring protecting shipping fleets and critical infrastructure from cyber threats through continuous asset visibility.

CybSafe is a UK human risk management platform using behavioural science and AI to reduce cybersecurity risks caused by human error. It helps enterprises measure,…

Garrison is a UK cybersecurity company providing hardware-enforced browser isolation technology that protects enterprises from malicious web content without software vulnerabilities.

Glasswall provides content disarm and reconstruction technology removing potential threats from documents by rebuilding files to their safe known-good specification before delivery.

Immersive Labs is a UK cybersecurity workforce development platform providing hands-on cyber labs and crisis simulations to build enterprise security team capabilities.

Intercede is a UK digital identity and credential management company providing PKI-based identity solutions for government, defence, and enterprise clients.

Khipu Networks is a UK network security integrator providing firewall management, network access control, and security architecture services to enterprises and public sector.

Meterian provides automated software composition analysis and open-source dependency vulnerability scanning for development teams requiring continuous application security testing.

NCC Group provides cybersecurity consulting, penetration testing, managed detection and response and software escrow services to enterprise clients globally from its Manchester headquarters.

Netacea provides bot management and intent-based threat detection protecting websites and APIs from automated attacks including credential stuffing, scraping and account takeover.

Nucleon Security provides proactive threat intelligence and breach prevention by acquiring early knowledge of attacker tools and malware before they are deployed against enterprise targets.

Panaseer provides a continuous controls monitoring platform giving CISOs real-time visibility into their organisation's security posture by aggregating data from all security tools.

Pentest People is a UK penetration testing and security assurance company providing red team assessments, vulnerability management, and security testing services to enterprises.

Praxis Security is a UK cybersecurity consultancy providing penetration testing, red team assessments, and security architecture services for enterprise clients.

Praxis Security Labs is a UK cybersecurity research and assessment company providing bespoke security testing, red team operations, and vulnerability research for enterprise clients.

Quantexa is a UK AI company providing contextual decision intelligence platforms for financial crime detection, customer intelligence, and risk management in financial services.

Sapien Cyber is a UK AI-powered cyber threat detection company providing automated threat hunting and incident triage for enterprise security operations centres.

Senseon is a UK AI cybersecurity company providing autonomous threat detection and investigation using AI to correlate signals across endpoints, network, and cloud.

Titania is a UK network security assurance company providing automated configuration audit tools for network devices, helping enterprises identify and fix security misconfigurations.

tmc3 provides managed security services, cyber incident response and threat intelligence to UK financial services and enterprise clients requiring expert-led security operations support.

Trustonic is a UK device security company providing trusted execution environment technology for mobile devices, IoT, and connected vehicles to protect sensitive operations.

Uleska is a UK security automation and testing orchestration platform helping enterprises scale their application security programmes across development teams.