Best Penetration Testing Tools in the UK

Silent Armor is an AI-powered perimeter defense platform designed to predict and prevent cyber breaches before they occur. It continuously analyzes hundreds of security metrics across an organization’s attack surface to deliver real-time, intelligent protection. The platform combines predictive analytics, dark web monitoring, and threat correlation to uncover emerging risks. Agentless attack surface monitoring allows organizations to discover exposed assets without deploying endpoint software. Automated mitigation playbooks help neutralize threats directly from a unified dashboard. AI-generated daily security briefs provide executive-level insights and prioritized remediation steps. Built for CISOs, SOC teams, and MSSPs, Silent Armor transforms fragmented security data into proactive, actionable defense.

Application security is noisy and overly complicated. The good news: you can relieve that unnecessary noise and dramatically reduce your risk of attacks with Invicti. Keeping up with security is more manageable with accurate, automated testing that scales as your needs shift and grow. That's where Invicti shines. With a leading dynamic application security testing solution (DAST), Invicti helps teams automate security tasks and save hundreds of hours each month by identifying the vulnerabilities that really matter. Combining dynamic with interactive testing (DAST + IAST) and software composition analysis (SCA), Invicti scans every corner of an app to find what other tools miss. With asset discovery, it's easier to discover all web assets — even ones that are lost, forgotten, or created by rogue departments. Through tried-and-true methods, Invicti helps DevSecOps teams get ahead of their workloads to hit critical deadlines, improve processes, and communicate more effectively.

Quixxi is a leading provider of mobile app security solutions that empowers enterprises and security professionals to protect their mobile applications through its patented and proprietary three-pillar platform: SCAN, an automated vulnerability assessment tool (SAST/DAST/WebAPI) that integrates into the development pipeline to identify and fix vulnerabilities with full remediation guidance; SHIELD, a one-click application shielding tool (RASP) that provides baseline security controls to protect intellectual property and defend against malicious third-party attacks; and SUPERVISE, a runtime monitoring solution that enables remote disabling, messaging, security logs, and customer analytics for enhanced app management and visibility. Serving: Mobile App Developers, Security Teams, and Organizations in Banking, Fintech, Digital Wallets, Healthcare, Government, and IT

Founded in 2017, Defendify is pioneering All-In-One Cybersecurity® for organizations with growing security needs, backed by experts offering ongoing guidance and support. Delivering multiple layers of protection, Defendify provides an easy-to-use platform designed to strengthen cybersecurity across people, process, and technology, continuously. Defendify streamlines cybersecurity assessments, testing, policies, training, detection, response, and containment in one consolidated and cost-effective cybersecurity solution. 3 layers, 13 solutions, 1 platform, including: • Managed Detection & Response • Cyber Incident Response Plan • Cybersecurity Threat Alerts • Phishing Simulations • Cybersecurity Awareness Training • Cybersecurity Awareness Videos • Cybersecurity Awareness Posters & Graphics • Technology Acceptable Use Policy • Cybersecurity Risk Assessments • Penetration Testing • Vulnerability Scanning • Compromised Password Scanning • Website Security Scanning

As the market leader in automated web application security testing, Acunetix by Invicti is the go-to security tool for Fortune 500 companies. DevSecOps teams can cut through the noise to uncover unseen risks and mitigate dangerous exploits, detecting and reporting on a wide array of vulnerabilities. With an industry-leading crawler that fully supports HTML5, JavaScript, and Single-page applications, Acunetix enables the auditing of complex, authenticated applications for deeper insight into an organization's risk posture. It's a leader for a reason: the technology behind Acunetix delivers the only product on the market that can automatically detect out-of-band vulnerabilities to enable comprehensive management, prioritization, and control for vulnerability threats by criticality. Plus, it's available both online and as an on-prem solution, integrating with popular issue trackers and WAFs so that DevSecOps teams don't have to slow down when building innovative apps.

Providing best-in-class cyber security doesn’t mean blindly chasing the latest trends. It does mean a commitment to core technology and meaningful innovation. See how our vulnerability and threat management solutions provide organizations like yours with the security foundation needed to protect vital assets. Eliminating network vulnerabilities doesn’t have to be complicated, even though that’s what some companies would have you believe. You can build a powerful, effective cybersecurity program that is affordable and easy to use. All you need is a strong security foundation. At Digital Defense, we know that effectively dealing with cyber threats is a fact of life for every business. After more than 20 years of developing patented technologies, we’ve built a reputation for pioneering threat and vulnerability management software that’s accessible, manageable, and solid at its core.

ImmuniWeb SA is a global application security company operating in over 50 countries, headquartered in Geneva, Switzerland. Most of ImmuniWeb customers come from regulated industries, such as banking, healthcare, and e-commerce. ImmuniWeb® AI Platform leverages award-winning AI and Machine Learning technology for acceleration and intelligent automation of Attack Surface Management and Dark Web Monitoring. The data is later leveraged for a threat-aware and risk-based Application Penetration Testing for web, mobile, and API security testing. ImmuniWeb is the only company that offers a contractual zero false-positives SLA with a money-back guarantee. ImmuniWeb’s AI technology is a recipient of numerous awards and recognitions, including Gartner Cool Vendor, IDC Innovator, and the winner of “SC Award Europe” in the “Best Usage of Machine Learning and AI” category. ImmuniWeb® Community Edition runs over 100,000 daily tests, being one of the largest application security communities

Pentest-Tools.com helps security professionals find, validate, and communicate vulnerabilities faster and with greater confidence - whether they’re internal teams defending at scale, MSPs juggling clients, or consultants under pressure. With comprehensive coverage across network, web, API, and cloud assets, and built-in exploit validation, it turns every scan into credible, actionable insight. Trusted by over 2,000 teams in 119 countries and used in more than 6 million scans annually, it delivers speed, clarity, and control - without bloated stacks or rigid workflows. ✔️ Comprehensive toolkit with real-world coverage ✔️ Validated findings rich with evidence ✔️ Automation options with granular control ✔️ Flexible, high-quality reporting ✔️ Workflow-friendly by design

This single, fully integrated solution conducts active, passive and agent-based assessments while its extensive flexibility evaluates risk according to each business. SAINT’s impressive, flexible and scalable scanning capabilities set it apart from many others in this space. SAINT has partnered with AWS, allowing its customers to take advantage of AWS’s efficient scanning. Should subscribers prefer, SAINT also offers a Windows scanning agent. Security teams can schedule scans easily, configure them with considerable occurrence flexibility and fine-tune them with advanced options. As a vulnerability management solution, SAINT Security Suite’s security research and development efforts focus on investigation, triage, prioritization, and coverage of vulnerabilities of the highest levels of severity and importance. Not willing to settle for just blanket coverage and raw data, our analysts focus on developing tools for what matters to our customers.

Expose all the hidden security gaps in your organization using nation-state grade technology. CyCognito’s Global Bot Network uses attacker-like reconnaissance techniques to scan, discover and fingerprint billions of digital assets all over the world. No input or configuration needed. Uncover the unknown. The Discovery Engine uses graph data modeling to map your organization’s full attack surface. You get a clear view of every single asset an attacker could reach — what they are and how they relate to your business. Using CyCognito’s proprietary risk-detection methods, the attack simulator identifies risks per asset and discovers potential attack vectors. It doesn’t affect business operations and works without deployment, configuration or whitelisting. CyCognito scores each risk based its attractiveness to attackers and impact on the business, dramatically reducing the thousands of attack vectors organizations may have to those critical few dozen that need your focus

Burp Suite is a leading range of cybersecurity tools, brought to you by PortSwigger. We believe in giving our users a competitive advantage through superior research. Each new edition of Burp Suite shares a common ancestor. The DNA running through our family tree represents decades of excellence in research. As the industry has shown time and time again, Burp Suite is the tool you can trust with your online security. We designed Enterprise Edition with simplicity as a top priority. Discover easy scheduling, elegant reports and straightforward remediation advice - all in one powerful package. The toolkit that started it all. Find out why Burp Pro has been the penetration testing industry's weapon of choice for well over a decade. Nurturing the next generation of WebSec professionals and promoting strong online security. Community Edition gives everyone access to the basics of Burp.

SecurityHQ is a world leading independent Managed Security Service Provider (MSSP), that detects, and responds to threats, instantly. As your security partner, we alert and act on threats for you. Gain access to an army of analysts that work with you, as an extension of your team, 24/7, 365 days a year. Receive tailored advice and full visibility to ensure peace of mind, with our Global Security Operation Centres. Utilize our award-winning security solutions, knowledge, people, and process capabilities, to accelerate business and reduce risk and overall security costs. Most Popular Services: Managed Detection and Response (MDR) Endpoint Detection and Response (EDR) Managed Extended Detection and Response (XDR) Vulnerability Management Services Managed Firewall Digital Forensics & Incident Response Managed Network Detection and Response (NDR) Penetration Testing CISO as a Service

Cyber Legion Ltd is a UK/EU cybersecurity, AI and secure-engineering company delivering security and technology from architecture through development, assurance and release. We support enterprises and regulated industries across product security, AI security and governance, security architecture, DevSecOps, application and cloud security, vulnerability management, penetration testing, threat modelling, risk and compliance, secure software and SaaS development, intelligent automation and digital transformation.

OnSecurity is a leading CREST-accredited penetration testing vendor based in the UK, dedicated to delivering high-impact, high-intelligence penetration testing services to businesses of all sizes. By simplifying the management and delivery of pentesting, we make it easier for organisations to enhance their security posture and mitigate risks, contributing to a safer, more secure digital environment for everyone. Make use of real-time reporting and immediate validation on fixes with FREE retesting. Streamline and reduce your admin overhead by integrating with existing workflows and demonstrate clear ROI. Pentesting, Vulnerability Scanning and Threat Intelligence all in one platform.

We are the world incident response leader. Merging complete response capabilities with frontline threat intelligence from over 3000 incidents handled per year and end-to-end expertise we protect, detect and respond against cyberattacks. For immediate assistance, contact us today. Tackle every facet of today and tomorrow’s threat landscape with guidance from Kroll’s Cyber Risk experts. Enriched by frontline threat intel from 3000+ incidents cases every year, our end-to-end cyber risk solutions help organizations uncover exposures, validate the effectiveness of their defenses, implement new or updated controls, fine-tune detections and confidently respond to any threat. Get access to a wide portfolio of preparedness, resilience, detection and response services with a Kroll Cyber Risk retainer. Get in touch for more info.

Ivanti Neurons for Risk-Based Vulnerability Management (RBVM) moves vulnerability management out of the spreadsheet era and into a continuous, intelligence-informed workflow that takes organizations from detection to remediation more quickly. Rather than relying on standard vulnerability severity scores that miss a significant portion of ransomware-linked vulnerabilities, Ivanti's proprietary Vulnerability Risk Rating (VRR) weighs each exposure against real-world exploit activity, active threat intelligence, manual pen test findings, and business asset criticality to surface what requires attention most urgently. Ivanti organization-wide risk scores roll individual asset risks up into a quantified, organization-wide security posture metric, giving IT, security, and executive stakeholders a shared, objective view of where the organization stands. Ready-made and fully customizable dashboards deliver role-appropriate visibility across every asset and infrastructure layer.

PlexTrac is the #1 AI-powered platform for pentest reporting and threat exposure management, helping cybersecurity teams efficiently address the most critical threats and vulnerabilities. By consolidating data, automating reporting, prioritizing risks, and streamlining remediation workflows, PlexTrac reduces organization’s overall threat exposure. We designed the PlexTrac platform to address the workflow pain points security practitioners face. PlexTrac helps them track signal through the noise and break down communication silos. Combining “plexus” and “track,” our name really says it all. PlexTrac exists to network and coordinate all people and parts of a security program and to better track progress toward maturity.

Emerge delivers a fully automated cybersecurity solution that protect your business from cyber attacks. Automatically discover cyber security weaknesses across your networks and applications using safe exploitation techniques with zero disruption. Continuously validate your security posture and accurately prioritise remediation efforts, ensuring critical threats are managed. Identify and secure your most vulnerable critical assets, eliminate emergency patching, control access to data and prevent credential abuse. We’re here to help businesses adopt new and highly effective ways of tackling cyber security challenges with our fully automated solutions that fulfil all your cyber needs. Identify where you are most vulnerable, prioritise remediation and assess how your security has improved, or not, over time. Track remediation progress, spot vulnerability trends and instantly see which areas of your environment are most at risk.

Continuous Security Testing for SaaS Companies - Built by Hackers Automatically assess your security posture with continuous vulnerability assessments and on-demand pentests. Hackers don't stop testing, and neither should you. We use a hybrid approach that combines testing methodologies built by expert hackers, a real-time reporting dashboard, and continuous delivery of high-quality results. We improve the traditional pentesting lifecycle by continually providing expert advice, remediation verification, and automated security testing throughout the entire year. Our dedicated team of experts works with you to properly scope and review your applications, APIs, and networks to ensure in-depth testing coverage all year. Let us help you sleep better at night.

Intruder is an international cyber security company that helps organisations reduce their cyber exposure by providing an effortless vulnerability scanning solution. Intruder’s cloud-based vulnerability scanner discovers security weaknesses across your digital estate. Offering industry-leading security checks, continuous monitoring and an easy-to-use platform, Intruder keeps businesses of all sizes safe from hackers. Receive actionable results prioritised by context. Intruder interprets raw data received from leading scanning engines, so you can focus on the issues which truly matter, such as exposed databases.‍ Intruder's high-quality reports help you sail through customer security questionnaires, and make compliance audits like SOC2, ISO27001, and Cyber Essentials a breeze.

Pentera (formerly Pcysys) is an automated security validation platform that helps you improve security so you can know where you stand at any given moment. It tests all cybersecurity layers by safely emulating attacks, arming you with a risk-based remediation roadmap. Pentera identifies true risk and security exposure so you can focus on the 5% of weaknesses that constitute 95% of the actual risk. Pentera is an agentless, low-touch, fully automated platform that requires no prior knowledge of the environment. The solution can see what no one else does, providing immediate discovery and exposure validation across a distributed network infrastructure. With Pentera, security teams can think and act as your adversary does, giving you the insights required for anticipating and preventing an attack before it happens. Hundreds of organizations trust Pentera‘s do-no-harm policy with no locked users, zero network downtime, and no data manipulation.