Top 100 Penetration Testing Companies in the United Kingdom

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Top 100 Penetration Testing Companies in the United Kingdom

The Best of July 2024

Looking for a top penetration testing company in the United Kingdom?

Having vulnerable security poses a threat to your organization. In an age where data has become some of the most important assets that your company will have, improving security measures is always a must. 

List of the Best United Kingdom Penetration Testing Services

  • 61
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • City of London, United Kingdom
    Launched in 2021, CyPro is a cybersecurity company. Their small team is based in City of London, United Kingdom. Their services include cybersecurity.
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  • 62
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • Horsham, United Kingdom
    PocketSIEM is a cybersecurity company launched in 2019. Their small team is based in Horsham, United Kingdom. The firm specializes in cybersecurity.
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  • 63
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 50 - 249 employees
    • Warrington, United Kingdom

    CloudCoCo Plc, a midsize IT managed services company, is headquartered in Warrington, United Kingdom and Birstall, United Kingdom. They provide IT managed services, cybersecurity, cloud consulting & SI, and IT strategy consulting and were founded in 2004.

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    Industries

  • 64
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • City of London, United Kingdom
    Connect Digital Security is a cybersecurity and IT managed services company. The small City of London, United Kingdom-based team focuses on cybersecurity and IT managed services. The agency was established in 2016.
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  • 65
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • City of London, United Kingdom
    IT strategy consulting company TipTop IT is based in City of London, United Kingdom. The small firm was founded in 2008. Their services include IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.
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  • 66
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    Securityium, a cybersecurity company, was established in 2020. Their small team is in London, United Kingdom and Pune, India. The firm provides cybersecurity and IT strategy consulting.
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  • 67
    (4 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      4.6
    • Would Recommend

      5.0
    • $5,000+
    • 50 - 249 employees
    • Bracknell, United Kingdom

    Deployflow is a boutique DevOps agency composed of a team of fewer than 10 professionals founded in 2010. Based in Reading, the United Kingdom, they provide cloud consulting & SI, cybersecurity, and IT managed services solutions for small and medium-sized businesses in various fields, such as financial services, IT, and real estate.

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    Clients

    • TCN

    Industries

  • 68
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 250 - 999 employees
    • Royal Leamington Spa, United Kingdom
    LRQA Nettitude, a cybersecurity company, is in New York, New York and Royal Leamington Spa, United Kingdom. The firm offers cybersecurity, IT managed services, compliance consulting, IT strategy consulting, and more and has a midsize team.The firm was launched in 2003.
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    Industries

  • 69
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • Twigworth, United Kingdom
    Optimising IT, an IT managed services company, was founded in 2013. Their small team is located in Twigworth, United Kingdom and specializes in IT managed services, IT strategy consulting, cybersecurity, cloud consulting & SI, and more.
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  • 70
    (0 Reviews)

    Not yet reviewed.

    • $10,000+
    • 50 - 249 employees
    • Stanmore, United Kingdom
    Micromindercs is a midsize cybersecurity company. They focus on cybersecurity, IT managed services, cloud consulting & SI, and BI & big data consulting & SI and were established in 2018. The firm is headquartered in Stanmore, United Kingdom.
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  • 71
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 50 - 249 employees
    • Gateshead, United Kingdom
    IT strategy consulting company Advantex Network Solutions Limited was launched in 2002. They are based in Gateshead, United Kingdom and Houghton-Le-Spring, United Kingdom and have a midsize team. Their services include IT strategy consulting, cloud consulting & SI, IT managed services, unified communications consulting & SI, and more.
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    Industries

  • 72
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 50 - 249 employees
    • City of London, United Kingdom
    Wizard Cyber is a cybersecurity company. The City of London, United Kingdom-based agency was launched in 2017. The midsize team focuses on cybersecurity, cloud consulting & SI, IT managed services, unified communications consulting & SI, and more.
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    Industries

  • 73
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 50 - 249 employees
    • City of London, United Kingdom
    RiverSafe Limited, a cybersecurity company, was founded in 2008. They are in City of London, United Kingdom and have a midsize team. RiverSafe Limited focuses on cybersecurity, cloud consulting & SI, corporate training & coaching, and devops managed services.
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  • 74
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • London, United Kingdom
    Based in London, United Kingdom, Cykube is a cybersecurity and blockchain company. The small firm was established in 2018. Their team provides cybersecurity and blockchain.
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    Industries

  • 75
    (0 Reviews)

    Not yet reviewed.

    • $10,000+
    • 10 - 49 employees
    • kent, United Kingdom
    Launched in 2000, Allteks LTD is an IT managed services company. Their small team is located in kent, United Kingdom. Their team specializes in IT managed services, IT strategy consulting, cybersecurity, cloud consulting & SI, and more.
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    Industries

  • 76
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • Leatherhead, United Kingdom
    Computer Care, a IT strategy consulting company, is located in Leatherhead, United Kingdom. The small team focuses on IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services and was established in 2001.
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    Industries

  • 77
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    360 Softtec is a small IT managed services company. The London, United Kingdom-based firm was established in 2003. Their team offers IT managed services, cybersecurity, cloud consulting & SI, and IT strategy consulting.
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    Industries

  • 78
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 250 - 999 employees
    • Birmingham, United Kingdom
    Application testing company Resillion is in Birmingham, United Kingdom and Hasselt, Belgium. Launched in 2022, the midsize team provides application testing, computer engineering, and cybersecurity.
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    Industries

  • 79
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • Nottingham, United Kingdom
    Collective Security is a cybersecurity and other IT consulting and SI company launched in 2017. They are headquartered in Beeston, United Kingdom and have a small team. The company specializes in cybersecurity and other IT consulting and SI.
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    Industries

  • 80
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • Edinburgh, United Kingdom
    Dunedin IT, an IoT development company, was launched in 2009. Located in Edinburgh, United Kingdom, their small team focuses on IoT development, IT managed services, cybersecurity, and cloud consulting & SI.
    Read More

    Industries

  • 81
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 2 - 9 employees
    • London, United Kingdom

    Pxosys Ltd is a cybersecurity company headquartered in London, United Kingdom and Loures, Portugal. The small team provides cybersecurity, cloud consulting & SI, IT managed services, and IT strategy consulting. The agency was established in 2018.

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    Industries

  • 82
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 2 - 9 employees
    • Crownhill, United Kingdom
    Cloudandmore is a IT strategy consulting company. Their small team is based in Crownhill, United Kingdom and Bristol, United Kingdom. Their services include IT strategy consulting, cloud consulting & SI, cybersecurity, IT managed services, and more. The agency was launched in 2021.
    Read More
  • 83
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • London, United Kingdom
    2|SEC Consulting is a cybersecurity company. Established in 2011, the small agency is headquartered in London, United Kingdom. Their services include cybersecurity, application testing, and corporate training & coaching.
    Read More
  • 84
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • City of London, United Kingdom
    Established in 2001, Labyrinth Technology is a IT strategy consulting company. Headquartered in City of London, United Kingdom, their small team provides IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.
    Read More
  • 85
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • City of London, United Kingdom
    Cubit Technology is a City of London, United Kingdom-based IT strategy consulting company. Established in 2004, the small team provides IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.
    Read More
  • 86
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • Westhill, United Kingdom
    G5 Technologies Ltd, a cybersecurity company, is headquartered in Westhill, United Kingdom. They specialize in cybersecurity, IT managed services, IT strategy consulting, cloud consulting & SI, and more and were established in 2004.
    Read More
  • 87
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • London, United Kingdom
    Launched in 2021, InnovaLab is a small software development firm headquartered in London, United Kingdom. Their services include custom software development, enterprise app modernization, cloud consulting & SI, cybersecurity, and more.
    Read More
  • 88
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • City of London, United Kingdom
    SSL247 is a cybersecurity company in City of London, United Kingdom. The small team provides cybersecurity, BI & big data consulting & SI, IoT development, and application testing and was founded in 2003.
    Read More
  • 89
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 50 - 249 employees
    • Staines-upon-Thames, United Kingdom
    TDM Group is a midsize IT managed services company. Established in 1997, the company is headquartered in Staines-upon-Thames, United Kingdom. Their services include IT managed services, cybersecurity, IT strategy consulting, and cloud consulting & SI.
    Read More
  • 90
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 50 - 249 employees
    • City of London, United Kingdom
    UK IT SERVICE, a IT strategy consulting company, was founded in 2008. The firm provides IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services and has a midsize team.
    Read More

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