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Top Pen Testing Companies in United Kingdom

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60 companies for Pen Testing in United Kingdom

Pen Test Service's Logo

Pen Test Service

Bedford, United Kingdom

A

1-10 Employees

-

Key takeaway

The company emphasizes its expertise in penetration testing, highlighting how it can help identify and mitigate vulnerabilities that attackers may exploit. With experience in various pentest engagements for both large and small businesses, they offer valuable insights and reports to minimize security risks.

Highlighted product

Core business

Penetration Testing Services - Home

Find out how attackers can exploit your vulnerabilities and get advice on how to stop them.

OALO Security's Logo

OALO Security

Sheffield, United Kingdom

A

1-10 Employees

2019

Key takeaway

The company offers a comprehensive suite of penetration testing services, prioritizing security and tailoring each project to meet individual requirements. Their certified testers utilize both manual and automated methods for web, mobile app, and infrastructure testing, ensuring reliable security solutions.

Highlighted product

Core business

Penetration Testing Services | Penetration Testers | OALO

Web, mobile app and infrastructure penetration testing services – our certified testers use both manual and automated methods for the best results

Pentest's Logo

Pentest

Wilmslow, United Kingdom

A

11-50 Employees

2001

Key takeaway

Pentest Limited offers comprehensive penetration testing services designed to uncover vulnerabilities and enhance security posture. Their CREST-accredited team provides tailored support and remediation after testing, ensuring clients meet crucial cybersecurity requirements and compliance regulations.

Highlighted product

Service

Penetration Testing Services | Pentest Limited

Our CREST accredited penetration testing services have been designed to uncover vulnerabilities, support improvement & provide security assurances.

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Conseal Security Ltd's Logo

Conseal Security Ltd

London, United Kingdom

A

1-10 Employees

-

Key takeaway

The company offers affordable penetration testing services for iOS, Android, and web applications, employing advanced techniques and tools to identify vulnerabilities. Their expertise ensures a thorough analysis of app behavior, helping organizations confidently secure sensitive data.

Highlighted product

Core business

Conseal Security | Experts in Penetration Testing & Mobile App Security Testing

Pentiq's Logo

Pentiq

London, United Kingdom

A

1-10 Employees

2016

Key takeaway

Pentiq specializes in penetration testing and cyber security consultancy, providing in-depth testing and comprehensive reporting to identify and mitigate security vulnerabilities. Their services aim to protect critical applications and data from cyber attacks, using the same tools and techniques as attackers to deliver a thorough assessment of an organization's security posture.

Highlighted product

Service

Penetration Testing Services | Cyber Security | PENTIQ

Pentiq offers a range of penetration testing and cyber security services that deliver a comprehensive approach to protecting your applications and data. Contact us to find out more. | PENTIQ

Advanced Persistent Pentesting's Logo

Advanced Persistent Pentesting

Staffordshire Moorlands, United Kingdom

A

1-10 Employees

-

Key takeaway

The company offers Advanced Persistent Pentesting services, highlighting their expertise in cybersecurity. They suggest that while they can provide this type of penetration testing, it may not be the most effective use of resources.

Highlighted product

Core business

Cheap Penetration Testing - Advanced Persistent Pentesting

Pentest Laboratories's Logo

Pentest Laboratories

London, United Kingdom

A

1-10 Employees

2018

Key takeaway

Pentest Laboratories Ltd specializes in providing tailored security assurance services, including red teaming assessments, to help organizations effectively tackle cyber threats and enhance their resilience against attacks.

Highlighted product

Core business

Pentest Laboratories | Modern Security Consultancy Services

Modern Security Consultancy Services

RM Information Security's Logo

RM Information Security

Manchester, United Kingdom

A

1-10 Employees

2015

Key takeaway

The company is a specialist penetration testing and information security consultancy, emphasizing its commitment to identifying vulnerabilities and enhancing information security practices. With ISO 27001 and ISO 9001 certifications, they prioritize customer service and aim to build lasting relationships as trusted security advisors.

Highlighted product

Core business

Penetration Testing Services - RM Information Security

We are a specialist penetration testing and information security consultancy with a focus on customer service.

CREST's Logo

CREST

London, United Kingdom

A

501-1000 Employees

-

Key takeaway

The company highlights its extensive network of over 370 leading cyber security providers, ensuring high-quality assurance for pen testing services. Their CREST accreditation process allows clients to confidently select reputable firms for testing and protecting their systems.

Highlighted product

Service

Pen Test Partners LLP Services - CREST

Endida Ltd's Logo

Endida Ltd

London, United Kingdom

A

1-10 Employees

-

Key takeaway

Endida's Pen Testing team utilizes a cutting-edge AI-Driven platform to conduct thorough and efficient security assessments of web applications and APIs, identifying vulnerabilities with precision. Their approach ensures that businesses can proactively strengthen their defenses against potential risks through comprehensive reporting and tailored remediation strategies.

Highlighted product

Product

Pen Testing | 0-50 Employees | Endida


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UseCase: A Large Healthcare Provider

Use case

A Large Healthcare Provider

Healthcare

Background: A large healthcare provider operates numerous facilities across the EMEA region, storing and processing vast amounts of sensitive patient data through their electronic health record (EHR) systems, mobile health applications, and IoT-enabled medical devices. Given the sensitive nature of healthcare data, they are subject to stringent regulatory requirements, including GDPR, HIPAA, and medical device security regulations. The healthcare provider has been facing increased cybersecurity risks due to their expanding digital footprint and the rise of targeted cyberattacks, such as ransomware, aimed at compromising patient data. They approached Cyber Legion to enhance their cybersecurity posture with CREST-approved Penetration Testing services that meet both regulatory requirements and industry best practices. Challenges: The healthcare provider required rigorous Penetration Testing for their critical systems, including EHR systems, patient databases, cloud-based telemedicine platforms, and IoT medical devices, to identify vulnerabilities that could expose sensitive patient information. Ensuring compliance with GDPR and HIPAA while maintaining high availability for life-critical systems was crucial. The organization needed actionable insights to fix vulnerabilities and a continuous improvement plan to stay ahead of emerging threats. They were looking for a partner that could provide detailed reports, remediation strategies, and a secure platform to track progress. Solution: Cyber Legion’s CREST Approved Penetration Testing Services Phase 1: Initial Assessment Cyber Legion’s team conducted a comprehensive scoping session with the healthcare provider to understand their critical assets, risk tolerance, and regulatory compliance needs. They identified the key systems for testing, including web applications, internal and external networks, IoT devices, and third-party software integrations. Phase 2: Penetration Testing Cyber Legion’s CREST-approved testers executed both black-box (external, unauthenticated) and white-box (internal, authenticated) testing approaches. The tests covered: Web application vulnerabilities (OWASP Top 10) Network security flaws (e.g., misconfigured firewalls, open ports) IoT device vulnerabilities in medical devices API and mobile app security issues Phishing and social engineering resilience Physical security weaknesses in data centers and facilities The tests simulated real-world attack scenarios, such as attempting unauthorized access to sensitive patient data, executing malware injections, and compromising third-party integrations. Phase 3: Reporting and Analysis The testing revealed several vulnerabilities, including: Outdated software on IoT devices Improper access controls on critical databases Unpatched vulnerabilities in their EHR web application Lack of multi-factor authentication (MFA) for remote access by healthcare professionals Cyber Legion provided detailed reports through their Secure Client Portal, highlighting each vulnerability’s risk level using CVSS scoring. They also outlined how these vulnerabilities could potentially lead to data breaches, service outages, or regulatory penalties. Phase 4: Remediation and Continuous Improvement Cyber Legion’s experts offered step-by-step guidance for fixing the vulnerabilities and implementing best practices such as regular patching, enhanced authentication methods, and network segmentation. The Secure Client Portal enabled the healthcare provider’s IT and security teams to track remediation progress, prioritize actions, and schedule follow-up assessments. A continuous improvement strategy was created to address not only the current vulnerabilities but also to prevent future risks through regular re-testing, proactive threat modeling, and ongoing security assessments. Phase 5: Regulatory Compliance and Reporting The healthcare provider was able to present Cyber Legion’s comprehensive penetration testing reports to regulatory bodies, demonstrating their commitment to securing patient data in compliance with GDPR, HIPAA, and medical device security standards. Cyber Legion helped ensure that the provider’s cybersecurity practices met the highest standards and that their security posture remained resilient. Outcome: The healthcare provider achieved a significant reduction in security vulnerabilities and an overall improvement in their cybersecurity defenses. They maintained compliance with GDPR and HIPAA requirements and received continuous support for improving their security framework. By partnering with Cyber Legion, the provider was equipped with a proactive security approach, transforming their security challenges into strengths and establishing a pathway to long-term resilience. Why Cyber Legion? Partnering with Cyber Legion offers: CREST-approved Penetration Testing services tailored to your industry needs. Continuous security improvement through in-depth vulnerability assessments and remediation guidance. A Secure Client Portal to manage your Penetration Testing results, remediation efforts, and ongoing security assessments. Strategic support for aligning your security posture with global standards and regulatory compliance. Industries We Serve: Healthcare Financial Services Manufacturing Automotive Education And more. Get in Touch for a Free Consultation and Elevate Your Cybersecurity!

UseCase: A Large Healthcare Provider

Use case

A Large Healthcare Provider

Healthcare

Background: A large healthcare provider operates numerous facilities across the EMEA region, storing and processing vast amounts of sensitive patient data through their electronic health record (EHR) systems, mobile health applications, and IoT-enabled medical devices. Given the sensitive nature of healthcare data, they are subject to stringent regulatory requirements, including GDPR, HIPAA, and medical device security regulations. The healthcare provider has been facing increased cybersecurity risks due to their expanding digital footprint and the rise of targeted cyberattacks, such as ransomware, aimed at compromising patient data. They approached Cyber Legion to enhance their cybersecurity posture with CREST-approved Penetration Testing services that meet both regulatory requirements and industry best practices. Challenges: The healthcare provider required rigorous Penetration Testing for their critical systems, including EHR systems, patient databases, cloud-based telemedicine platforms, and IoT medical devices, to identify vulnerabilities that could expose sensitive patient information. Ensuring compliance with GDPR and HIPAA while maintaining high availability for life-critical systems was crucial. The organization needed actionable insights to fix vulnerabilities and a continuous improvement plan to stay ahead of emerging threats. They were looking for a partner that could provide detailed reports, remediation strategies, and a secure platform to track progress. Solution: Cyber Legion’s CREST Approved Penetration Testing Services Phase 1: Initial Assessment Cyber Legion’s team conducted a comprehensive scoping session with the healthcare provider to understand their critical assets, risk tolerance, and regulatory compliance needs. They identified the key systems for testing, including web applications, internal and external networks, IoT devices, and third-party software integrations. Phase 2: Penetration Testing Cyber Legion’s CREST-approved testers executed both black-box (external, unauthenticated) and white-box (internal, authenticated) testing approaches. The tests covered: Web application vulnerabilities (OWASP Top 10) Network security flaws (e.g., misconfigured firewalls, open ports) IoT device vulnerabilities in medical devices API and mobile app security issues Phishing and social engineering resilience Physical security weaknesses in data centers and facilities The tests simulated real-world attack scenarios, such as attempting unauthorized access to sensitive patient data, executing malware injections, and compromising third-party integrations. Phase 3: Reporting and Analysis The testing revealed several vulnerabilities, including: Outdated software on IoT devices Improper access controls on critical databases Unpatched vulnerabilities in their EHR web application Lack of multi-factor authentication (MFA) for remote access by healthcare professionals Cyber Legion provided detailed reports through their Secure Client Portal, highlighting each vulnerability’s risk level using CVSS scoring. They also outlined how these vulnerabilities could potentially lead to data breaches, service outages, or regulatory penalties. Phase 4: Remediation and Continuous Improvement Cyber Legion’s experts offered step-by-step guidance for fixing the vulnerabilities and implementing best practices such as regular patching, enhanced authentication methods, and network segmentation. The Secure Client Portal enabled the healthcare provider’s IT and security teams to track remediation progress, prioritize actions, and schedule follow-up assessments. A continuous improvement strategy was created to address not only the current vulnerabilities but also to prevent future risks through regular re-testing, proactive threat modeling, and ongoing security assessments. Phase 5: Regulatory Compliance and Reporting The healthcare provider was able to present Cyber Legion’s comprehensive penetration testing reports to regulatory bodies, demonstrating their commitment to securing patient data in compliance with GDPR, HIPAA, and medical device security standards. Cyber Legion helped ensure that the provider’s cybersecurity practices met the highest standards and that their security posture remained resilient. Outcome: The healthcare provider achieved a significant reduction in security vulnerabilities and an overall improvement in their cybersecurity defenses. They maintained compliance with GDPR and HIPAA requirements and received continuous support for improving their security framework. By partnering with Cyber Legion, the provider was equipped with a proactive security approach, transforming their security challenges into strengths and establishing a pathway to long-term resilience. Why Cyber Legion? Partnering with Cyber Legion offers: CREST-approved Penetration Testing services tailored to your industry needs. Continuous security improvement through in-depth vulnerability assessments and remediation guidance. A Secure Client Portal to manage your Penetration Testing results, remediation efforts, and ongoing security assessments. Strategic support for aligning your security posture with global standards and regulatory compliance. Industries We Serve: Healthcare Financial Services Manufacturing Automotive Education And more. Get in Touch for a Free Consultation and Elevate Your Cybersecurity!

Information about Pen Testing in United Kingdom

When exploring the penetration testing industry in the United Kingdom, several key considerations come into play. Firstly, understanding the regulatory landscape is crucial; the UK adheres to data protection laws, such as the General Data Protection Regulation (GDPR), which impacts how penetration tests are conducted and reported. Organizations must ensure compliance with these regulations to avoid hefty fines. Another important factor involves the skills gap in cybersecurity, leading to significant opportunities for growth within the sector. Companies often seek certified professionals with expertise in various testing frameworks, such as OWASP and NIST, to enhance their security measures. The competitive landscape is dynamic, with both established firms and emerging startups vying for market share. Additionally, staying abreast of the latest cybersecurity threats and trends is essential, as the threat landscape evolves rapidly. Environmental concerns, while less prominent in this sector compared to others, are gaining attention, particularly regarding sustainable practices in technology use. Lastly, penetration testing in the UK holds global relevance, as companies increasingly recognize the need for robust cybersecurity measures across borders. This creates opportunities for collaboration and knowledge sharing with international firms, enhancing the overall effectiveness of security practices.


Insights about the Pen Testing results above

Some interesting numbers and facts about your company results for Pen Testing

Country with most fitting companiesUnited Kingdom
Amount of fitting manufacturers1130
Amount of suitable service providers1782
Average amount of employees1-10
Oldest suiting company2001
Youngest suiting company2019

Frequently asked questions (FAQ) about Pen Testing Companies

Some interesting questions that has been asked about the results you have just received for Pen Testing

Based on our calculations related technologies to Pen Testing are Industrial Electroplating, Industrial Filtration, Industrial Sintering, Industrial Extrusion, Industrial Handling

The most represented industries which are working in Pen Testing are IT, Software and Services, Other, Defense, Construction, Consulting

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