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Pen Testing
Praveen Joshi
April 16, 2026
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Artificial Intelligence
Praveen Joshi
April 9, 2026
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Artificial Intelligence
RSK BSL Tech Team
April 4, 2026
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Artificial Intelligence
RSK BSL Tech Team
March 31, 2026
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IT Outsourcing
RSK BSL Tech Team
March 24, 2026
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Artificial Intelligence
RSK BSL Tech Team
March 19, 2026
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Pen Testing
RSK BSL Tech Team
March 14, 2026
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Artificial Intelligence
RSK BSL Tech Team
March 9, 2026
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Artificial Intelligence
RSK BSL Tech Team
March 4, 2026
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Artificial Intelligence
RSK BSL Tech Team
February 27, 2026
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Artificial Intelligence
RSK BSL Tech Team
February 20, 2026
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Artificial Intelligence
RSK BSL Tech Team
February 13, 2026
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Hire resources
RSK BSL Tech Team
February 6, 2026
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Software Development
RSK BSL Tech Team
January 30, 2026
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Software Development
RSK BSL Tech Team
January 23, 2026
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AI Tech Solutions
RSK BSL Tech Team
January 16, 2026
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In this digital age, mobile apps have become a vital part of our daily routine, offering unrivalled convenience and functionality. However, it is crucial to guarantee the security of mobile apps as our reliance on them increases. Users and app developers may suffer disastrous outcomes from a single security violation. This explains why mobile application penetration testing is critical for safeguarding your app from possible threats and weaknesses.
Based on the last six months, generative AI has been used to power about 7.78 million attacks in the UK in 2024. The United Kingdom has become more volatile as a result of the ongoing fear of exposure and attacks.
Thus, human error, zero-day vulnerabilities, and zero-trust infrastructure have resulted from this situation. This has therefore made room for a large number of AI-powered hackers who practically steal confidential documents and millions of dollars. To avoid all these, the penetration testing steps out, there are many UK cybersecurity companies but, in this blog, we will discuss only 10 of them.
Penetration testing is commonly known as pen testing. Stimulating cyberattacks on a computer system, network, or web application is a crucial component of cybersecurity. The primary goal is to identify any weaknesses that could allow malevolent actors to access additional information without authorisation.
RSK Cyber Security is a leading UK-based firm renowned for its comprehensive cybersecurity services. Established in 2021, the company specialises in vulnerability assessments, penetration testing, and cybersecurity audits.
RSK Cyber Security is known for its team of skilled ethical hackers who simulate real-world exploits to identify and mitigate security risks. Their services are tailored to meet the unique needs of each client, ensuring robust protection against evolving threats. With a strong focus on professionalism, responsiveness, and thoroughness, RSK Cyber Security has earned a reputation for delivering top-notch cybersecurity solutions.
Qualysec is a UK based cybersecurity company, known for its cutting-edge penetration testing services. The company’s main goal is to provide all kinds of businesses with customised security solutions. They have deployed an experienced crew that is well-versed in a variety of fields such as network security, online application security, and cloud security.
NCC Group is a top testing company in the UK and a cybersecurity pioneer. They provide a wide range of services, including security consulting, risk management, and penetration testing. They are well-known throughout the globe for their detailed assessments, mostly in the banking and government sectors.
The company have certification of CREST and PCI-DSS. As a licensed cyber security firm in the UK, it enjoys greater client trust due to its superior vulnerability detection and mitigation tactics.
Nettitude is a reputable service provider for thorough penetration testing techniques in the cybersecurity space. With the convergence of cloud environments, networks, and apps, this cybersecurity solution now provides extensive testing for these. Nettitude is well-known for its actionable insights, and it has maintained rigorous compliance by assisting many industries and organisations.
One of the top testing firms in the UK, BAE Systems is adept at providing penetration testing and advanced threat intelligence services. Mostly they give services to the government and defence sectors. The specialist prevents cybercriminals from leaking the vital infrastructure.
Cybergator provides web and mobile applications with cyber protection. They are more accustomed with providing an agile method to testing that is exclusive to business owners in order to avoid vulnerabilities. They conduct speedy evaluations and produce detailed findings that effectively reduce the cyber danger.
Being one of the top cybersecurity companies in the UK, it offers full-fledged security services to the domain of healthcare and finance by offering penetration testing and red teaming. The company is CREST-accredited and focuses on identifying gaps, such as simulated attacks, where security is critical.
This cybersecurity company in the UK is a CHECK-approved one. Expert in penetration testing services. Deal with complex systems and environments. The expert takes a thorough approach, allowing the client to grasp their security posture and the issues of their vulnerabilities.
Apart from the government and fiancé sector, e-commerce also has cyber threats of leaking their important documents. So, this cybersecurity and consulting company in the UK serve to deal with, e-commerce clients helping them to regulatory requirements and enhance security.
F-Secure Consulting is a leader in providing effective red teaming and threat simulation services. Their staff primarily conducts in-depth assessments to assist the company in identifying and reducing cyber risk, which is linked to numerous cyberthreats.
The importance of mobile app penetration testing cannot be overstated in today’s digital landscape. With the increasing number of cyberattacks, particularly those fuelled by generative AI, ensuring the security of mobile applications is paramount. By leveraging the services of these companies, businesses can safeguard their applications against potential threats, protect sensitive data, and maintain user trust. Investing in robust penetration testing is a proactive step towards a more secure digital future.
Praveen is a seasoned IT Solutions Leader and Director at RSK Business Solutions, a technology-driven IT Consulting Company that specializes in Bespoke Software Development, Agile Consulting, Mobile App Development, Smart Sourcing, and much more. For the last 17 years, he has been delivering quality custom IT solutions that help businesses achieve their goals.