Top Cybersecurity Companies in the UK

Between them, the 47 cybersecurity companies on this page cover web development (45), web design (42), IT services (37) and iOS app (29). They also list work in United States of America. 47 of them have written a profile you can read before you get in touch.

1. 25

   

   CyberOwl

   Web Development · Web Design · IT Services

   CyberOwl provides cybersecurity analytics for operational assets, with a focus on shipping and critical national infrastructure such as utilities.

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2. 26

   

   Mimecast

   Web Development · Web Design · IT Services

   Mimecast is a cybersecurity company that began with email security. Its cloud platform protects email and collaboration tools and manages risk from people, data and AI tools.

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3. 27

   

   ExtraHop

   Web Development · Web Design · IT Services · Also in United States of America

   ExtraHop sells network visibility and analytics software. It reads traffic across an organisation's network to help security and IT teams find threats and performance problems.

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4. 28

   

   Secon Cyber

   Web Development · Web Design · IT Services

   Secon Cyber is a cyber security firm that works with organisations of different sizes.

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5. 29

   

   Securience

   Web Development · Web Design · IT Services

   Securience is a specialist in identity management, access and governance.

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6. 30

   

   nCipher Security

   Web Development · Web Design · IT Services

   nCipher Security makes general-purpose hardware security modules, devices that guard cryptographic keys.

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7. 31

   

   ProtectBox Ltd

   Web Development · Web Design · IT Services

   ProtectBox Ltd runs a cybersecurity comparison website and marketplace.

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8. 32

   

   Immersive Labs

   Web Development · Web Design · UI/UX Design

   Immersive Labs runs an online platform for building and measuring cyber security skills.

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9. 33

   

   Cybereason

   Web Development · Web Design · IT Services · Also in United States of America

   Endpoint protection, managed detection and response, and incident response services for large organisations, now part of LevelBlue

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10. 34

    

    Emerge

    Web Development · Web Design · IT Services

    Emerge is a professional services partner and value-added reseller that sells cybersecurity software.

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11. 35

    

    Barac.io

    Web Development · Web Design · IT Services

    Barac.io is a cybersecurity company focused on threats concealed inside encrypted traffic.

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12. 36

    

    Tessian

    Web Development · Web Design · IT Services

    Tessian built email security software centred on what it called human layer security.

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13. 37

    

    zobi

    Web Development · Web Design · IT Services

    1.8 billion data records are sold on the dark web every year. One of those is probably yours. Hackers target the weakest link to get your data, which is often your home network.

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14. 38

    T

    Threatscape

    Web Development · Web Design · IT Services · Also in Ireland

    Threatscape is a pure-play cyber security company with offices in Dublin and London.

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15. 39

    TM

    Trend Micro

    Mobile App Development · Web Development · iOS App · Also in Singapore

    Trend Micro is a cybersecurity company that began in security software and now operates as the listed parent of a group of security businesses.

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16. 40

    IS

    Ionx Solutions

    Web Development · Web Design · IT Services

    Ionx Solutions makes security software built around system integrity.

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17. 41

    R

    RiskEye

    Web Development · Web Design · IT Services

    RiskEye offers a service aimed at online harm, covering prevention, protection and repair. It combines AI technology with live analysts who work in a live environment at all hours.

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18. 42

    RL

    Risk Ledger

    Web Development · Web Design · IT Services

    Risk Ledger is a platform for third-party and supply chain risk management.

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19. 43

    S

    Secgate

    Web Development · Web Design · IT Services

    Secgate is a cyber security company based in London. Its site says it has helped clients since 2015 and has served customers around the world, including major banks, energy…

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20. 44

    RL

    REBASOFT Limited

    Web Development · Web Design · IT Services

    REBASOFT Limited makes software for network and security teams, built by people who have run and secured networks themselves.

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21. 45

    2S

    2|SEC Consulting

    Web Development · Web Design · IT Services

    2 SEC Consulting is a cyber security and information security consultancy that treats security risk as part of wider business strategy.

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22. 46

    TT

    TDI (Tetrad Digital Integrity)

    Mobile App Development · Web Development · Web Design · Also in United States of America

    Cybersecurity consultancy offering governance, engineering and performance management to government and commercial clients

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23. 47

    NS

    NTT Security

    Web Development · Web Design · IT Services

    NTT Security is the specialist security company within the NTT Group.

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