Top 100 Penetration Testing Companies in London

Need Help Selecting a Company?
Directory image
  1. Home
  2. IT Services
  3. Cybersecurity
  4. Penetration Testing
  5. United Kingdom
  6. London

Top 100 Penetration Testing Companies in London

The Best of May 2024

Looking for a top penetration testing company in London?

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 London Penetration Testing Services

  • 61
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    IG-Smart Ltd, a cybersecurity company, was established in 2009. The company provides cybersecurity, IT managed services, IT strategy consulting, and BI & big data consulting & SI and has a small team. The company is located in London, United Kingdom.
    Read More
  • Get connected with a company for free

    Tell us about your project, and we'll match you with vetted companies that meet your requirements.

    Get Started
  • 62
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    MTC GS Limited , a IT strategy consulting company, is headquartered in London, United Kingdom. The small firm was founded in 2012. Their team offers IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, and more.
    Read More
  • 63
    (0 Reviews)

    Not yet reviewed.

    • $250,000+
    • 50 - 249 employees
    • Shadwell, United Kingdom
    Speedster IT, a cloud consulting & SI company, is in Shadwell, United Kingdom and Takeley, Bishop’s Stortford , United Kingdom. Founded in 2014, the small team provides cloud consulting & SI, IT managed services, cybersecurity, IT strategy consulting, and more.
    Read More

    Industries

  • 64
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    Cloud consulting & SI company Techsub.IT was founded in 2019. The small team focuses on cloud consulting & SI, IT managed services, cybersecurity, IT strategy consulting, and more. The firm is based in London, United Kingdom.
    Read More

    Industries

  • 65
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • London, United Kingdom
    Solid Systems is a small IT managed services company launched in 2003. Their team offers IT managed services, cloud consulting & SI, and cybersecurity. The agency is located in Cape Town, South Africa; Johannesburg, South Africa and London, United Kingdom.
    Read More

    Industries

  • 66
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    IT strategy consulting company Ictnet Limited was founded in 2018. The small team focuses on IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, cybersecurity, and more. The agency is based in London, United Kingdom.
    Read More
  • 67
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • City of London, United Kingdom
    Founded in 2015, Magnetar IT is an IT strategy consulting company. Located in City of London, United Kingdom and Royal Leamington Spa, United Kingdom, their small team offers IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.
    Read More

    Industries

  • 68
    (5 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $1,000+
    • 10 - 49 employees
    • Hildenborough, United Kingdom

    RSK Cyber Security is a cybersecurity company. They are headquartered in Hildenborough, United Kingdom and Dubai, United Arab Emirates and have a small team. Their services include cybersecurity, cloud consulting & SI, web development, mobile app development, and more. The company was established in 2021.

    Read More

    Industries

  • 69
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • London, United Kingdom
    Cybersecurity company Cloudbox was launched in 2012. Their small team is in Cape Town, South Africa; London, United Kingdom and , Singapore. Their services include cybersecurity, IT managed services, IT strategy consulting, cloud consulting & SI, and more.
    Read More
  • 70
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    Lineal is a small business consulting company. Based in London, United Kingdom and Hong Kong, Hong Kong, the firm was founded in 2009. Their services include business consulting and cybersecurity.
    Read More

    Industries

  • 71
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • City of London, United Kingdom
    Cyber Sentinel is a cybersecurity company. Established in 2013, the team provides cybersecurity. Their small company is City of London, United Kingdom-based.
    Read More
  • 72
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 50 - 249 employees
    • Sevenoaks, United Kingdom
    Akita is a midsize Sevenoaks, United Kingdom-based IT managed services company. They provide IT managed services, cloud consulting & SI, IT strategy consulting, CRM consulting and SI, and more and were founded in 1996.
    Read More
  • 73
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    INTELLIWORX Managed IT is a small IT strategy consulting company headquartered in Baulkham Hills, Australia; Auckland, New Zealand; Boston, Massachusetts and London, United Kingdom. They offer IT strategy consulting, IT managed services, cybersecurity, other IT consulting and SI, and more and were founded in 2011.

    Read More

    Industries

  • 74
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • London, United Kingdom

    Founded in 2015, Data Compliance Group Ltd is a cybersecurity and compliance consulting company. Based in London, United Kingdom, their small team focuses on cybersecurity and compliance consulting.

    Read More
  • 75
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • City of London, United Kingdom
    Appsecco, a small cybersecurity company, is headquartered in City of London, United Kingdom. They offer cybersecurity and were launched in 2015.
    Read More
  • 76
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • London, United Kingdom
    Taqniaty is a Makkah, Saudi Arabia-based web design company. The small team specializes in web design, web development, and digital strategy. The company was founded in 2004.
    Read More

    Industries

  • 77
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • London, United Kingdom
    TestPro Consulting Ltd, a cybersecurity company, is based in London, United Kingdom. The small team offers cybersecurity, Artificial Intelligence, application testing, robotics process automation, and more and was launched in 2020.
    Read More

    Industries

  • 78
    (1 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    YBUGS is a digital strategy company located in London, United Kingdom and Lahore, Pakistan. The small team offers digital strategy, social media marketing, search engine optimization, ux/ui design, and more and was established in 2023.
    Read More

    Industries

  • 79
    (0 Reviews)

    Not yet reviewed.

    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Artificial intelligence firm Electi Consulting was established in 2017. Their small team is located in London, United Kingdom and Λεμεσός, Cyprus and offers Artificial Intelligence, blockchain, BI & big data consulting & SI, digital strategy, and more.

    Read More

    Industries

  • 80
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 50 - 249 employees
    • Slough, United Kingdom
    Armor is a cybersecurity company. Their midsize team is in Richardson, Texas and Slough, United Kingdom. The agency offers cybersecurity.
    Read More
  • 81
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 2 - 9 employees
    • Romford, United Kingdom
    In Romford, United Kingdom, Qloud IT Support is a cybersecurity company. The small team specializes in cybersecurity, IT strategy consulting, IT managed services, cloud consulting & SI, and more and was launched in 2020.
    Read More

    Industries

  • 82
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 2 - 9 employees
    • London, United Kingdom
    Entrenovu is a custom software development company. They offer custom software development, cybersecurity, web development, mobile app development, and more and were founded in 2022. The company is headquartered in London, United Kingdom.
    Read More
  • 83
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    WeSeeNow, an IT managed services company, was founded in 1999. They are headquartered in London, United Kingdom and have a small team. WeSeeNow offers IT managed services and other IT consulting and SI.
    Read More

    Industries

  • 84
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 2 - 9 employees
    • Romford, United Kingdom
    IT Department is a Romford, United Kingdom-based IT strategy consulting company. The small team offers IT strategy consulting, unified communications consulting & SI, cybersecurity, and IT managed services and was launched in 2020.
    Read More
  • 85
    (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.

    Read More

    Clients

    • TCN

    Industries

  • 86
    (6 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $25,000+
    • 2 - 9 employees
    • Finchampstead, United Kingdom

    Melmac Solutions Limited is a cybersecurity company. Launched in 1995, the small agency is located in Finchampstead, United Kingdom. Their services include cybersecurity, blockchain, and financial advising & planning.

    Read More

    Industries

  • 87
    (1 Reviews) 5.0
    • Timeliness

      4.0
    • Service Excellence

      5.0
    • Value

      4.5
    • Would Recommend

      5.0
    • $50,000+
    • 1,000 - 9,999 employees
    • Reading, United Kingdom

    IT strategy consulting and other IT consulting and SI company Black Box is headquartered in. The company provides IT strategy consulting and other IT consulting and SI and is large.The company was established in 1976.

    Read More
  • 88
    (0 Reviews)

    Not yet reviewed.

    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    IT managed services company IT Champion Ltd was founded in 2009. They are headquartered in Exeter, United Kingdom and London, United Kingdom and have a small team. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, cybersecurity, and more.
    Read More
  • 89
    (0 Reviews)

    Not yet reviewed.

    • $5,000+
    • 10 - 49 employees
    • Stevenage, United Kingdom
    Established in 1998, Primenet is an IT managed services company. Their small team is in Stevenage, United Kingdom. Their team offers IT managed services, cybersecurity, IT strategy consulting, cloud consulting & SI, and more.
    Read More

    Industries

  • 90
    (0 Reviews)

    Not yet reviewed.

    • Undisclosed
    • 10 - 49 employees
    • Berkhamsted, United Kingdom

    Memgraph is a software development company. They are headquartered in Zagreb, Croatia and have a small team. Their services include custom software development and cybersecurity.

    Read More

Get connected with the right company for you

We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.

Schedule Consultation