Top 70 Application Security Companies in England

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Top 70 Application Security Companies in England

The Best of January 2026

Looking for a top application security company in England?

With their in-depth knowledge of application security principles, penetration testing techniques, and security compliance standards, application security services help businesses identify and address security vulnerabilities before malicious actors exploit them. By collaborating with application security professionals, companies can enhance the resilience of their software infrastructure, build trust with their customers, and maintain a strong security posture in today's digital age. 

List of the Best England Application Security Services

  • 1
    (50 Reviews) 4.9

    Timeliness

    4.6

    Service Excellence

    4.8

    Value

    4.9

    Would Recommend

    4.9
    $25,000+
    50 - 249 employees
    Salford, England
    In Salford, England; London, England and Houston, Texas, Digiryte is a cloud consulting & SI company. They focus on cloud consulting & SI, Mobile App Development, Custom Software Development, Digital Strategy, and more and were founded in 2016.
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    Clients

    NHS

    Industries

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  • 2
    (3 Reviews) 4.3

    Timeliness

    4.3

    Service Excellence

    4.3

    Value

    4.3

    Would Recommend

    4.5
    Undisclosed
    50 - 249 employees
    London, England
    BreachLock Inc is an Application Testing company. Launched in 2019, the midsize agency is based in New York, New York; Amsterdam, Netherlands and London, England. Their team offers Application Testing, Cybersecurity, and DevOps Managed Services.
    Read More

    Industries

  • 3
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    Middlesbrough, England
    North IT is a Middlesbrough, United Kingdom-based cybersecurity company. The small agency was launched in 2012. Their team specializes in cybersecurity.
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    Industries

  • 4
    (2 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $25,000+
    2 - 9 employees
    London, England
    Headquartered in London, England, Line20 Digital is a website development firm. They offer Web Development, Cybersecurity, Web Design, and UX/UI Design and were launched in 2016.
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    Clients

    IGN Entertainment - Ziff Davis

    Industries

  • 5
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    London, England
    WQsoftwares, a Marketing Strategy company, was established in 2014. The midsize team provides Marketing Strategy and cloud consulting & SI.
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  • 6
    (6 Reviews) 4.8

    Timeliness

    4.7

    Service Excellence

    4.9

    Value

    4.4

    Would Recommend

    4.8
    $10,000+
    10 - 49 employees
    Leeds, England

    Founded in 2010, NewRedo Ltd. is a software development company headquartered in Leeds, England. Their team of under 10 serves businesses of all sizes in industries such as healthcare, financial services, and government. Services include custom software development, IT managed services, and mobile app development. 

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    Clients

    RaceBest

    Industries

  • 7
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    1,000 - 9,999 employees
    London, England
    Netsol Technologies Inc. Is a Cybersecurity company. Based in Los Angeles, California and London, England, the team specializes in Cybersecurity and cloud consulting & SI.
    Read More

    Industries

  • 8
    (13 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.9

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    London, England
    Stingrai Inc., a small Cybersecurity company, is in Toronto, Canada and London, England. Founded in 2021, the team provides Cybersecurity and Application Testing.
    Read More

    Clients

    Clicktrans

    Industries

  • 9
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    250 - 999 employees
    London, England
    Exponential-e, a Cybersecurity company, specializes in Cybersecurity and cloud consulting & SI. The firm is based in London, England.
    Read More
  • 10
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    London, England
    Redscan is a Cybersecurity company founded in 2015. Their team offers Cybersecurity.
    Read More

    Industries

  • 11
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    London, England
    Sectricity is a Cybersecurity company established in 2021. In Merelbeke-Melle, Belgium and London, England, the team specializes in Cybersecurity.
    Read More

    Industries

  • 12
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    London, England
    CovertSwarm is a Cybersecurity company. Based in London, England and Wilmington, Delaware, their team offers Cybersecurity.
    Read More

    Industries

  • 13
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    London, England
    Established in 2020, Securityium is a Cybersecurity company. The team offers Cybersecurity and IT strategy consulting.
    Read More
  • 14
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Newcastle upon Tyne, England
    Cybit is a Cybersecurity company launched in 1991. Located in Newcastle upon Tyne, England and Thatcham, England, the team specializes in Cybersecurity and IT managed services.
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  • 15
    (0 Reviews)

    Not yet reviewed.

    $50,000+
    2 - 9 employees
    London, England
    Monsevo, a Cybersecurity company, provide Cybersecurity. They were launched in 2023.
    Read More
  • 16
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Manchester, England
    NetMonkeys Ltd is a small IT managed services company established in 2003. Their services include IT managed services and Cybersecurity.
    Read More
  • 17
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    London, England
    Secore Information Security Ltd is a Cybersecurity company. The London, England-based agency was launched in 2023. Their team specializes in Cybersecurity.
    Read More

    Industries

  • 18
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Altrincham, England
    Cyphere is a small Application Testing company. Launched in 2020, the team focuses on Application Testing and Cybersecurity.
    Read More

    Industries

  • 19
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Oxford, England
    Web development firm OWA Digital is based in Oxford, England and Fitzrovia, London, England. Their services include Web Development and Mobile App Development.
    Read More

    Industries

  • 20
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    London , England
    Penguin Commercial Limited, a Corporate Travel Management company, is located in London , England. The team focuses on Corporate Travel Management and IT managed services.
    Read More

    Industries

  • 21
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Anlaby, England
    Headquartered in Anlaby, England, Pera Prometheus Consulting Ltd is a Cybersecurity and Business Continuity Management company. The team offers Cybersecurity and Business Continuity Management.
    Read More
  • 22
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    Twickenham, England
    2mghealthcare is a small Twickenham, England-based Cybersecurity company. The team focuses on Cybersecurity and IT strategy consulting.
    Read More
  • 23
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Manchester, England
    Havilah Blockchain Studios is a Blockchain company. Located in Awka, Nigeria, their small team specializes in Blockchain and Branding. The agency was established in 2022.
    Read More

    Industries

  • 24
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    50 - 249 employees
    Portishead, England
    IT strategy consulting company Chorus was established in 1999. The team focuses on IT strategy consulting and Cybersecurity.
    Read More

    Industries

  • 25
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    1,000 - 9,999 employees
    London, England
    K2 Partnering Solutions is a CRM consulting and SI company. They are headquartered in London, England, and their services include CRM consulting and SI and ERP consulting and SI.
    Read More
  • 26
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    London, England
    Established in 2018, Ictnet Limited is a small IT strategy consulting company. Their team offers IT strategy consulting and BI & big data consulting & SI.
    Read More
  • 27
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    London, England
    Socium is a small London, England-based IT strategy consulting company. Their services include IT strategy consulting and IT managed services.
    Read More
  • 28
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Nottingham, England
    Nexor is a Cybersecurity company. The firm is based in Nottingham, England. Their services include Cybersecurity and IT managed services.
    Read More
  • 29
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Leeds, England
    Launched in 2011, Sycom Integrated Solutions LTD is a small Leeds, England-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.
    Read More

    Industries

  • 30
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Leigh, England
    Express IT is a small IT strategy consulting company. Founded in 2011, the team provides IT strategy consulting and cloud consulting & SI.
    Read More
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