cyber security companies in UK

There is unmatched growth happening in cyber security companies in Cambridge – more than what is happening on a global and national scale. According to experts, the worldwide cybersecurity industry will hit $215 billion by the end of 2025 and could increase to $697 billion by 2035 with an 11.3% growth rate every year. From 2015 to 2025, in the UK, cybersecurity spending has grown from £4 billion to £14 billion, while the global rate of growth was just 10%. More cases are happening now as digital systems gain importance, new rules are introduced, and cybercrime becomes more dangerous.   The UK cyber security companies saw its workforce reach 67,300, while at least 6,600 new jobs were added within a year, and a continuing gap of 9,300 skilled staff remains. At present, the sector consists of 2,165 firms that make £13.2 billion in revenue yearly and add £7.8 billion to the UK economy through Gross Value Added. With an impressive group of cyber security companies Cambridge, it is at the forefront of progress and top-notch skills in the industry. 20 Best Cyber Security Companies in Cambridge The top 20 cybersecurity businesses listed here come from Cambridge in 2025 and include both new startups and well-known consulting firms. The main keyword, cyber security companies Cambridge, is used everywhere to help people who need strong cybersecurity find what they seek in the area. 1. Qualysec Technologies   Businesses turn to Qualysec Technologies for full protection, detection, and handling of security vulnerabilities, among other best cyber security companies Cambridge. In 2020, Qualysec was established and provides penetration testing help for web, mobile, IoT, AI/ML, network, cloud, and API systems. With the help of Insight, security teams benefit from analytics, automation, and valuable information, which is used for assessing risks, automated security, spotting threats on public and private clouds, and responding to incidents.   Would you like to look at the sample Pentesting report? It will give you an idea of what the detailed report looks like. Download one now!   Latest Penetration Testing Report Download 2. Darktrace   Darktrace, which started operations in 2013, focuses on using AI in cyber defence. The company offers autonomous detection and handling of threats through machine learning, and it protects the interests of several sectors such as finance, healthcare, and the government. 3. Zenzero   Zenzero provides managed cybersecurity services in Cambridge, where the services include penetration testing, security for endpoints, monitoring for threats, and Cyber Essentials certification. Their team makes sure that the solutions and security provided will suit various organisations, mostly by focusing on preventing threats and maintaining compliance. 4. Cambridge IT Security   Cambridge IT Security offers consulting, managed security, and incident response as its services. The company deals with risk studies, security designs, and the fulfillment of regulations, guiding clients to address new threats. 5. CyberHive   CyberHive offers secure ways to communicate and keep data safe for Cambridge companies. They provide endpoint security, secure encryption, and monitor networks, mainly aimed at protecting important information and intellectual property. 6. Redscan   Redscan is in charge of managed detection and response (MDR), delivering threat intelligence, and offering security assessments. The company stands with Cambridge entities to find weaknesses and address cybersecurity problems. 7. ZORB Security Ltd   The company mainly offers security reviews, pentesting service, and incident response services. Services are considered to find weak spots and guide clients on how to reduce vulnerabilities. 8. Falanx Cyber Defence team   Falanx Cyber Defence provides threat monitoring services, active cybersecurity, and risk assessment help. The Cambridge team of the company specializes in helping organisations protect themselves from cyber threats. 9. NCC Group   Services at NCC Group involve penetration testing, managing risks, and offering advice regarding compliance for cyber security Cambridge. They work for clients who are public organizations as well as those in the private sector. 10. CyberArm   CyberARM, belonging to the worldwide Arm group, gives IoT and connected devices effective embedded security solutions. In Cambridge, ARM mainly develops secure methods for combining hardware and software. 11. CyberSmart   CyberSmart supports Cambridge IT security enterprises in receiving and sustaining the Cyber Essentials certification, with automated tools, staff training, and watchful monitoring. 12. Trustonic   Trustonic ensures that the platforms on mobile devices and applications are secure. Thanks to their tech, sensitive transactions are secured, and digital services are available safely in Cambridge and other areas. 13. Cognisys   The company offers cybersecurity consulting, assessments of risks, and manages security services for clients. Cambridge is where the firm helps companies in the healthcare, finance, and technology industries. 14. Syndis   With Syndis, organisations in Cambridge can get penetration testing, red teaming, and training in security. They prefer to conduct training scenarios that match real attacks to equip the system with better defenses. 15. CyberScale   CyberScale offers personalized cybersecurity consulting service and support that enables Cambridge companies to build solid security plans and follow all the set rules. 16. CybSafe   The CybSafe platform is used for security training and monitoring people’s behaviour through the cloud. The clients in Cambridge depend on the tool to decrease risks from people and boost their cyber defense. 17. S-RM   S-RM is a Cambridge Cybersecurity Company that also responds to and investigates cybercrime incidents. The team in Cambridge gives support to organisations before and during cyber incidents. 18. MWR InfoSecurity   Penetration testing services, threat intelligence, and security advice for Cambridge businesses are now supported by MWR InfoSecurity, which is now part of F-Secure. 19. Nettitude   The company provides state-of-the-art techniques to detect threats, test security, and achieve compliance. They are present in Cambridge to assist clients in infrastructure and finance. 20. Context Information Security (Acquired By Accenture)   Context Information Security, managed by Accenture, delivers consulting, red teaming, and incident response for cybersecurity purposes. The Cyber Security Company Cambridge office helps clients from the government, defence, and commercial sectors. How Cambridge is the Leading Hub for Cybersecurity Companies Because of Cambridge’s reputation for technology