Penetration Testing
We find the vulnerabilities others can’t.
SPEAK TO THE TEAMPenetration Testing remains one of the most effective ways to uncover real technical risk. Our team brings together some of the UK’s most highly accredited specialists to assess vulnerabilities across your entire estate, your networks and applications to APIs and cloud environments.
Invest in the creativity, lateral thinking, and threat awareness of an experienced testing team and gain insights that technology alone simply can’t provide.
Demonstrate business impact
Move beyond vulnerability checklists and demonstrate how compromise translates into operational disruption, data loss, and financial risk.
Build regulatory assurance
Evidence that your security controls perform as intended, aligning testing outcomes with PCI-DSS, DORA, ISO 27001, and other governance expectations.
Reveal AI-driven exposure
Uncover how AI is reshaping your threat landscape, identifying where new logic paths, data flows, or model interactions are weakening controls.
Our accreditations
Experts in technical risk identification
We’re the only Penetration Testing company partner in the UK with both NCSC CHECK accreditation and all 6 Microsoft Solution partner designations. We’ve also been a CREST member for over 10 years and continue to invest in the certification of our team, of whom many are some of the most highly certified practitioners in the country. This is a mark of our commitment to the highest standards of security testing.
1800+
Penetration Tests completed.
220+
Penetration Testing customers.
20+
Penetration Testing consultants in-house.
10+
Years as a certified, trusted CREST member.
Our Penetration Testing services
Our portfolio covers a broad range of technologies and business scenarios. Structured to align with the natural rhythm of your penetration testing programme, it supports both mandated compliance testing and the ad-hoc assessments that arise as your environment evolves.
Network Penetration Testing
Find exposures within your internal and internet-facing networks that could lead to unauthorised access or lateral movement.
Web Application Penetration Testing
Expose exploitable flaws within user-facing functionality (application logic, authentication, sessions, and inputs) using the OWASP Top 10.
Web Service Testing
Uncover backend weaknesses in APIs and services, including authentication, authorisation, and data handling beyond the browser.
Wireless Penetration Testing
Determine whether wireless access could enable unauthorised entry and escalation into internal networks.
Server Build Review
Identify security, performance, and resilience risks caused by insecure server builds and configurations.
Network Segregation Testing
Confirm your network controls are correctly enforcing traffic restrictions between systems and environments.
Network Device Security Review
Detect misconfigurations, missing controls, and other security issues in your firewalls, routers, and switches.
Breakout Testing
See how surplus permissions and misconfigurations are creating exposures so you can harden your environments.
Client Security Evaluation
Risk test employee workstations using industry best practices and standards to identify vulnerabilities.
Penetration Testing is more essential than ever
Penetration testing remains essential for validating how controls perform under real-world attack conditions. By simulating adversary behaviour, organisations can identify exploitable weaknesses before they become incidents. This evidence-led insight strengthens cyber resilience and supports cyber resilience framework outcomes around risk management and attack prevention.
We work closely with you and your team to scope engagements around your architecture, risk profile, and business priorities, ensuring testing delivers practical findings that inform remediation and deliver long-term gains.
CREST-accredited expertise
All our Penetration Testers are CREST accredited making them suitable for the most complex and classified testing engagements. With CREST accreditation, you know engagements will be carried out using the most appropriate approach, metrics, and reporting. Our CRTs also cover a range of specialisms across different systems, environments, and industries, ensuring maximum relevance to your organisation and Security profile.
Invest in high-quality adversarial validation of your defences and deliver outcomes that drive positive change in your organisation.
Proactively reduce risk
Quantify your organisation’s technical risk exposure before threat actors have their turn. Penetration Testing reveals the true extent of your exploitable risk and the real-world impact these flaws could lead to. Equip your team to remediate based on risk and impact, reduce your attack surface, and avoid the constant cat and mouse between threat actor and victim.
Optimise security investment
Our Penetration Testing engagements deliver clear, prioritised insights into the Security weaknesses and deficiencies most likely to damage your organisation, threaten operability, and lead to financial harm. Inform your investment decisions, ensuring that new and existing tools, training, and processes address your highest-risk areas and deliver the greatest ROI.
Strengthen compliance and trust
Demonstrate your commitment to Security through regular, comprehensive Penetration Testing. Our Pentesting services help you meet regulatory compliance requirements including GDPR, PCI DSS, and ISO 27001 and achieve industry best practices. Avoid potential fines and legal repercussions and build trust with customers, partners, and stakeholders.
The Ultima Effect for your Security
Drive Security innovation across your organisation, from initial assessment, through integration, to long-term management.
Contact us
Discover IT solutions that drive business success
Ready to transform your business with expert IT solutions?
Contact our team today.
0333 015 8000
enquiries@ultima.com
Get in touch
