Qualysec

BLOG

Top 20 Cyber Security Companies in the London

Chandan Kumar Sahoo

Chandan Kumar Sahoo

Published On: March 20, 2025

chandan

Chandan Kumar Sahoo

August 29, 2024

Cyber Security Companies in the London
Table of Contents

The world today is powered by digital innovation; from the cloud computing era to the era of the Internet of Things, technology continues to evolve daily. Businesses are interested in implementing the latest technology in their workplace for increased productivity. Although technology improvement is always advantageous, it occasionally causes unwanted hassles if left unsecured. For its flourishing tech scene, there are numerous cyber security firms leading the way to protect against emerging online threats. The United Kingdom is one of the top destinations for cyber security buffs since it is home to the top firms in the industry. What are the criteria that enable a cybersecurity firm to join the top 20 on the list? Well, here in this blog, we are going to investigate that and see the top 20 Cyber Security Companies in the London.

Parameters that Help Define the Best Cyber Security Companies

Cyber security is a sector that has existed for a couple of years but has become extremely popular after the increase in cyber attacks. The pandemic of 2019 took it to the next level, and overnight, cyber security was all that every business was discussing. Well, with the demand being so high, several security firms emerged to protect the world from cyber-attacks. These firms were adjudged the best in the sector based on certain criteria and parameters. The parameters which assist in identifying the best cybersecurity firms are:

  • Innovation and Technology Integration
  • Threat Intelligence and Research
  • Incident Response and Recovery
  • Comprehensive Security Solutions
  • Adherence to Regulatory Compliance
  • Client Trust and Reputation
  • Global Reach and Impact
  • Training and Education Programs

Top 20 Cyber Security Companies in the London

Top 20 Cyber Security Companies in the London

Firms that led the way with innovation in cyber security, stayed one step ahead of the threat landscape, brought cutting-edge tech to the mix, gave back to the international community through research, demonstrated their capabilities in given areas, etc., found their place in the top 20 cyber security companies. The top 20 have stood out through the parameters established, showcasing what makes them the cyber security avengers of London. Let’s take a closer look at each of these firms and what they have to offer.

1. Darktrace

Darktrace is an expert in using artificial intelligence to detect and respond to cyber threats in real-time. It is well-known for providing cybersecurity artificial intelligence solutions to a wide range of cybersecurity issues, including threats to the cloud ecosystem, IoT devices, network infrastructure, industrial systems, etc.

  • Location: Cambridge, London
  • Founding Year: 2013
  • Cyber Security Categories: AI-powered threat detection and cyber defense.

2. Ernst & Young (EY)

Ernst & Young (EY) provides a series of cyber security solutions, such as risk management, consulting, and advisory, guiding companies through the intricacies of cyber security. They aim to make a better working world and have been digital leaders in the battle against data privacy and other security matters.

  • Location: London, London
  • Founding Year: 1989
  • Cyber Security Categories: Consulting, risk management, and advisory services.

3. PricewaterhouseCoopers (PwC)

PricewaterhouseCoopers offers end-to-end cyber security solutions, with strategic guidance, risk management, and consulting that assist organizations in protecting their virtual assets. They are highly popular for acclimatizing businesses to the dynamic virtual environment. Their strengths lie in management, risk, and technological consulting.

  • Location: London, London
  • Founding Year: 1998
  • Cyber Security Categories: Advisory, consulting, and risk management.

4. GoAllSecure

GoAllSecure is a premier world-class cyber security provider. Operating with a presence in Europe, the Middle East, and Asia Pacific, they evaluate organizations’ assets and identify sufficient solutions to remain strong against current threats, keeping cyber regulations in view. They concentrate on enhancing cyber security culture through new-age training solutions and simulations to assist organizations in developing a strong cyber security culture.

  • Location: London, London
  • Founding Year: 2022
  • Cyber Security Categories: Offensive Security, Penetration Testing, Rd Team Exercises, Cloud Security.

5. BAE Systems

BAE Systems is in business to deliver state-of-the-art cyber security solutions, threat intelligence, and cyber defense to counter developing cyber threats. They are among the most sophisticated cyber security service providers. Their main objective is to deliver technology-led solutions to defense, aerospace, and security businesses.

  • Location: Farnborough, London
  • Founding Year: 1999
  • Cyber Security Categories: Cyber defense, threat intelligence.
Latest Penetration Testing Report
Pentesting Buyer Guide

6. Qualysec

Qualysec is a cybersecurity firm that has a reputation for its vulnerability management and security test expertise. It is a provider of penetration testing services that enable organizations to know their potential areas of weakness within their systems. They are oriented towards process-driven and prevention-oriented methods of security testing.

  • Location: London, London
  • Year of Founding: 2020
  • Cyber Security Areas: Vulnerability management, security testing, and incident response.

7. SecureWorks

SecureWorks is a part of Dell Technologies. It offers managed security services and threat intelligence to organizations all over the world. They deliver proactive cyber security solutions for advanced threat protection and response. They take pride in their high detection capabilities and unparalleled response times while handling cyber threats.

  • Location: Atlanta, Georgia, USA
  • Founding Year: 1999
  • Cyber Security Categories: Managed security services, threat intelligence.

8. Claranet Cyber Security

Claranet Cyber Security delivers a range of cyber security consulting solutions including managed security services and consultancy. They help businesses to protect their digital infrastructure and meet their business goals. They have a global reach and are famous for their penetration testing, hacking training, and managed cybersecurity service  in London.

  • Location: London, London
  • Founding Year: 1996
  • Cyber Security Categories: Managed security services, consultancy.

9. NCC Group

NCC Group is an actual global cyber security risk management and consulting leader. They provide diverse services to assist organizations in enhancing their security position. These services are assessment and advisory, detection & response, compliance and training. They also provide service to more than one industry across the whole world.

  • Location: Manchester, London
  • Founding Year: 1999
  • Cyber Security Categories: Cyber security consulting, risk management.

10. Kroll

Kroll belongs to the family of companies at Duff & Phelps. It deals with cyber risk management and incident response and offers holistic solutions to counter and deflect cyber security threats. Besides that, they offer risk and financial advisory solutions to their clients founded on data analytics and their perspectives.

  • Location: NY, NY, USA
  • Founding Year: 1932
  • Cyber Security Categories: Cyber risk management, incident response

11. Clearswift

Clearswift, similar to its parent organization Fortra, is a market leader in the cyber security space. It deals with data loss prevention, email security solutions, etc., to protect organizations’ sensitive data. They are reputed for their cutting-edge and scalable solutions to advanced cyber security issues.

  • Location: Theale, London
  • Founding Year: 1982
  • Cyber Security Categories: Data loss prevention, email security.

12. Sophos

Sophos specializes in endpoint protection and encryption offerings, providing detailed protection against cyber threats of diverse nature. It is well-reputed for its all-encompassing suite of security solutions. Their products are inclusive of deep endpoint protection, next-generation firewalls, as well as network security.

  • Location: Abingdon, London
  • Founding Year: 1985
  • Cyber Security Categories: Endpoint security, encryption.

13. SentryBay

SentryBay makes tools for better online security; their specialty is secure browsing and endpoint protection solutions. They protect people from the internet threats like phishing and malware. Their new-age protection for hybrid and remote work environments has been nothing short of revolutionary.

  • Location: London, London
  • Founding Year: 2001
  • Cyber Security Categories: Secure browsing, endpoint protection.

14. Foxcube IT

Foxcube IT is a cyber security firm that offers consulting and training services. They collaborate with organizations to improve their cyber security stance by means of strategic consulting and training initiatives. Their security offerings encompass IT support, IT services, Microsoft cloud solutions, etc.

  • Location: Nottingham, London
  • Founding Year: 2016
  • Cyber Security Categories: Penetration testing, cyber security consulting.

15. Pentest People

Pentest People deals in pen testing and security audits. They help organizations recognize and solve security issues in their infrastructure through moral hacking and holistic security testing. They aim at simplifying pen testing to lessen the threat an organization eventually incurs. 

  • Location: Leeds, London
  • Year of Founding: 2018
  • Cyber Security Sub-specialties: Penetration testing and security tests.

16. Nettitude

Nettitude is part of the Lloyd’s Register Group and provides its customers with a variety of cybersecurity services. These include managed security services, penetration testing, and incident response. Their focus is on personalized solutions that target new cyber dangers. They secure a place as the leading provider of a security partner for hundreds of organizations around the world.

  • Location: Manchester, London
  • Founding Year: 2003
  • Cyber Security Types: Managed security services, penetration testing, and incident response.

17. MDSec

MDSec is a company that specializes in cybersecurity training, consulting, and research. Through a wide range of security areas, they provide organizations with expert advice and training to enhance their cyber security posture. They are world-class trusted advisors for several businesses, and they deserve to be.

  • Location: Manchester, London
  • Year of Establishment: 2011
  • Cyber Security Types: Cyber security training, consulting, and research.

18. Invicti

Invicti, formerly known as Netsparker, is a cybersecurity company that specializes in web application security testing. Their automated tools for scanning web vulnerabilities help organizations discover and address security issues in their web applications.

  • Location: London, London
  • Founding Year: 2009
  • Cyber Security Categories: Web application security testing.

19. Trustwave

Trustwave is a business in the USA that is owned by Singtel. It offers a wide variety of cyber security solutions like managed security service, threat detection, compliance, etc. The solutions help organizations navigate through the maze of cybersecurity threats and regulations.

  • Location: Chicago, USA
  • Founding Year: 1995
  • Cyber Security Categories: Managed security services, threat detection, and compliance.

20. Coalfire

Coalfire is a cyber consulting service provider dealing in consulting, risk management, and compliance solutions. They help organizations design and maintain safe and compliant cybersecurity programs. They are recognized for their competence in utilizing leading-edge solutions for sophisticated security problems. It is for this reason that the best cloud infrastructure suppliers, corporations, and SaaS businesses place confidence in Coalfire.

  • Location: Westminster, USA
  • Founding Year: 2001

Risk Management Compliance And Cyber Security Consulting.   Given the changing ecosystem of threats, securing the digital future of organizations and people has gained huge significance. In a world of cyber threats, choosing a trusted partner has become the most crucial first step. 

Talk to our Cybersecurity Expert to discuss your specific needs and how we can help your business.

Conclusion

As a benchmark for assessing the top firm that fits your needs, you can consult our list of the top 20 Cyber Security Companies in london.  These are some of the top firms due to their commitment to research, innovations, and customer safeguarding. They provide customized solutions designed to fit the requirements of specific organizations. Use the services of the best cyber security experts in the U.K. to protect your digital assets and improve your cyber security.

Qualysec Pentest is built by the team of experts that helped secure Mircosoft, Adobe, Facebook, and Buffer

Chandan Kumar Sahoo

Chandan Kumar Sahoo

CEO and Founder

Chandan is the driving force behind Qualysec, bringing over 8 years of hands-on experience in the cybersecurity field to the table. As the founder and CEO of Qualysec, Chandan has steered our company to become a leader in penetration testing. His keen eye for quality and his innovative approach have set us apart in a competitive industry. Chandan's vision goes beyond just running a successful business - he's on a mission to put Qualysec, and India, on the global cybersecurity map.

Leave a Reply

Your email address will not be published.

Save my name, email, and website in this browser for the next time I comment.

0 Comments

No comments yet.

Chandan Kumar Sahoo

CEO and Founder

Chandan is the driving force behind Qualysec, bringing over 8 years of hands-on experience in the cybersecurity field to the table. As the founder and CEO of Qualysec, Chandan has steered our company to become a leader in penetration testing. His keen eye for quality and his innovative approach have set us apart in a competitive industry. Chandan's vision goes beyond just running a successful business - he's on a mission to put Qualysec, and India, on the global cybersecurity map.

3 Comments

emurmur

John Smith

Posted on 31st May 2024

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut et massa mi. Aliquam in hendrerit urna. Pellentesque sit amet sapien fringilla, mattis ligula consectetur, ultrices mauris. Maecenas vitae mattis tellus. Nullam quis imperdiet augue.

    Get a Quote

    Pentesting Buying Guide, Perfect pentesting guide

    Subscribe to Newsletter

    Scroll to Top
    Pabitra Kumar Sahoo

    Pabitra Kumar Sahoo

    COO & Cybersecurity Expert

    “By filling out this form, you can take the first step towards securing your business, During the call, we will discuss your specific security needs and whether our services are a good fit for your business”

    Get a quote

    For Free Consultation

    Pabitra Kumar Sahoo

    Pabitra Kumar Sahoo

    COO & Cybersecurity Expert