Penetration Testing Services
Authorised simulated attack and vulnerability testing
Find partners
Secario Labs
Secario Labs provides offensive cyber security services to modern organisations, operating in the UK and Bulgaria. Its services include application security testing for web and mobile applications, penetration testing that simulates real-world attack techniques, and adversary emulation (red team) engagements assessing defences across people, processes and technology. The company uses threat-intelligence-led mapping and testing to identify vulnerabilities and help clients reduce risk exposure and maintain compliance.
Secarma Limited
Secarma is a Manchester-based cybersecurity company providing penetration testing and security services to businesses and global brands. Services span three areas: Advise (vCISO, threat modelling, incident response, maturity assessments), Certify (Cyber Essentials, IASME Cyber Assurance, IoT Cyber Scheme) and Test (web, mobile, cloud, infrastructure and wireless penetration testing, red teaming, vulnerability scanning). It also offers AI and LLM application security testing and has traded for 25 years.
Sentrium Security
UK-based cybersecurity consultancy specialising in penetration testing, red teaming and secure code reviews.
Sovereign Secure Limited
Sovereign Secure is a cyber security consultancy established in 2012, with offices in the UK, US, Singapore and the Middle East. A Qualified Security Assessor, it provides PCI DSS compliance services alongside penetration testing of web applications, mobile apps, networks, APIs, cloud environments and hardware. It also supports clients through Cyber Essentials, Cyber Essentials Plus and ISO 27001, serving public and private sector organisations worldwide.
Threatproof
Threatproof supplies managed cybersecurity services to IT teams and managed service providers. Its Infinite Security portfolio combines a 24/7 managed security operations centre, cloud and email security, endpoint protection covering XDR, MDR, EDR and NDR, network security, and virtual CISO advice. The company also offers cyber insurance, data security, penetration testing and security awareness training for employees, plus support for NIS2 compliance readiness. Pricing for managed service providers is charged per user, allowing MSPs to scale the service across their client base without a fixed contract size.
Wriggle Security
Wriggle Security is a cyber security firm based in Newcastle upon Tyne, established in 2017 with a team of seven specialists. The company helps businesses protect their websites, systems and networks through website security audits priced at £399 plus VAT, penetration testing to identify network vulnerabilities, security awareness training, GDPR compliance support and cyber liability insurance arranged with partner Todd and Cue Insurance.
XRAY CyberSecurity
XRAY CyberSecurity is a London-based penetration testing company offering senior-led, fixed-scope engagements across external networks, internal networks and web applications. Its engineers simulate real-world attackers using black box, grey box and white box methods to identify vulnerabilities, misconfigurations and attack chains before they are exploited. The firm also provides red teaming services and security consultations.
Z Cyber
Z Cyber is an IT security services provider based in London, delivering endpoint protection, next-generation firewall network security, unified endpoint management and security awareness training. The company provides email and Office 365 security, including phishing simulation and training, and offers Backup Exec for data protection and recovery. Z Cyber holds CREST certification for vulnerability assessments of internal and external facing networks, and delivers regular security testing intended to combine prevention, protection and proof for client organisations.
djinn six
djinn six tests AI and cloud systems for security weaknesses through its ProbeSix platform, which maps, targets, attacks and scores systems before reporting fixes. Its consultants cover AI security and governance, cloud security and engineering assurance, and compliance advisory against DORA, PCI DSS, ISO 27001 and the EU AI Act. The company also provides digital forensics and incident support, penetration testing and offensive security, and security architecture and assurance.
Showing 169–177 of 177 providers
Search all 177 providersAre you a Penetration Testing Services provider?
Get listed and reach thousands of potential customers looking for penetration testing services services.