Human-Led, CREST-Accredited Penetration Testing & Adversary Simulation Services
Expert, penetration testing services and adversary simulation that go beyond automated tools, giving you real assurance your defences hold up.
About Pentest
We Test Like Attackers Think
Real threats aren’t automated. They’re persistent, creative, and human. That’s why every engagement we run is led by experienced security professionals who think like the adversaries targeting your organisation, not just automated tools running predefined checks.
We are a CREST-accredited offensive cybersecurity firm with over 25 years’ experience in delivering pen testing services, adversary simulation, and compliance security assurance to organisations that take their cybersecurity risks seriously. Our consultants bring deep technical expertise across infrastructure, applications, cloud security, and emerging technologies, combined with the tactical creativity that no automated vulnerability scanning tool can replicate.
Pentest Services
Penetration Testing & Adversary Simulation Services
Our CREST-accredited services are designed to go deeper. We don’t just find common vulnerabilities, we validate risk, identify security gaps, help you assess business impact, improve overall security posture and provide robust information security assurances your organisation, and stakeholders, require.
Penetration Testing Services
Our penetration testing engagements combine manual expertise with advanced tooling to uncover complex security vulnerabilities across your attack surface. Every test is tailored to your environment, your security risk profile, and what actually matters to your business.
> Web application penetration testing
> Infrastructure penetration testing
> Cloud security testing
> Mobile, AI & IoT testing
Red Teaming & Adversary Simulation
Knowing you're vulnerable is only half the picture. Adversary simulation puts your people, processes, and technology under realistic attack conditions, so you can find out whether your defences can detect, contain, and respond to cyberattack when it counts.
> Red team assessments
> Purple team exercises
> Continuous adversary simulation
> Social engineering & phishing
Compliance Testing & Risk Assurance
Compliance frameworks set a baseline, but being compliant isn't the same as being secure. Our compliance testing services go beyond the tick in the box, satisfying auditor requirements while delivering security assurance that builds genuine security resilience.
> PCI DSS penetration testing
> ISO 27001 security testing
> M&A security due diligence
Why Choose Pentest
Why Security-Conscious Organisations Trust Us
True cybersecurity assurance comes from being genuinely challenged and supported through meaningful improvement. That’s what our services are designed to do, and why clients, from startups to enterprises, work with us time and time again.
Manual Testing
We use technology to amplify our capabilities, not replace human judgment. Our expert penetration testers combine years of offensive security experience with industry-leading tools, helping them go deeper, faster. Uncovering critical vulnerabilities & complex attack chains that scanning tools alone would miss.
Real World Simulation
We don't just discover vulnerabilities; we demonstrate how attackers would exploit them. Our testers use advanced tools to identify entry points, then apply real-world threat tactics to chain security vulnerabilities together to show the true business impact of a breach.
Actionable Insights
Tools can only tell you what is vulnerable. Our security testers explain why it matters to your business, how attackers would exploit it, and what remediation works in your environment. This human-driven analysis ensures your team can prioritise and fix issues effectively.
Collaborative approach
We treat your team as partners, not just a target. From the initial scoping through to the debrief, we work alongside your team, sharing knowledge, answering questions, and making sure you leave every engagement more capable than when you started.
Pentest Certifications & Accreditations
Working To The Highest Cybersecurity Standards
Our company, and pen testers, possess various important industry certifications, accreditations and memberships. These include:
CREST
The UK’s leading accreditation body for penetration testing; required by many regulated industries and frameworks including PCI DSS.
ISO 9001
Independent certification that our processes and delivery standards are consistently managed and audited for quality, every engagement.
ISO 27001
Formal assurance that your data is handled to an internationally recognised security standard, the same one we help our clients achieve.
Offensive Security Certified Professional (OSCP)
Cyber Essentials
Plus
The UK government-backed cybersecurity certification that requires hands-on technical verification
Certified Red Team Operator
(CRTO)
Specialist red team certification that trains consultants to think and operate exactly like the advanced threat actors your organisation faces.
Pentest Clients
The Industries We Work In
Our approach works for organisations of all sizes and sectors. From start-ups running their first penetration test to global enterprises with complex, multi-scope programmes. We have deep sector experience across:
- Software & SaaS
- Technology & Telecoms
- Higher Education
- Fintech & Financial Services
- Food & Drink Manufacturing
- Retail / E-Commerce
- Healthcare
- Media
Pentest Testimonials
What Our Clients say
Pentest Insights
Penetration Testing Research & Security Insights
The threat landscape doesn’t stand still, and neither do we. Our consultants invest in ongoing security research, CTF competitions, and responsible vulnerability disclosure to stay at the cutting edge of offensive security. The techniques we develop in the lab are the techniques we bring to your engagement.
Ready to Put Your Cybersecurity to the Test?
Whether you need a targeted web application pen test, annual infrastructure penetration testing, or an ongoing adversary simulation programme, we'll scope the right engagement for your organisation and get to work.
"Pentest make us work harder, but we know our business, and our customers, are more secure as a result."
Director of Security Assurance Multinational Technology Company