Security assumptions are not the same as security assurance
Firewalls, XDR, and vulnerability scanners are essential — but they can't tell you how a determined attacker would actually move through your environment. Penetration testing answers that question directly, by combining the tools, techniques, and mindset of a real adversary with the rigour and accountability of a professional engagement.
Nomios delivers penetration testing across every layer of your environment — from network infrastructure to cloud-native workloads — with findings that are clear, actionable, and tied to real business risk.
The right test for every surface
Each environment demands a different approach. Our teams bring specialist expertise across all of them.
Assess the security of your network perimeter and internal estate — from the outside in and the inside out.
- External network & perimeter testing
- Internal network & lateral movement
- Firewall & segmentation validation
- Active Directory & identity attacks
Identify vulnerabilities in your web-facing applications and the APIs that power them — before they are exploited.
- OWASP Top 10 & beyond
- Authentication & authorisation flaws
- REST, GraphQL & SOAP API testing
- Business logic vulnerabilities
Test the security of your AWS, Azure, or GCP environments — configuration, access controls, and cloud-native attack paths.
- Cloud configuration & posture review
- IAM & privilege escalation paths
- Container & serverless security
- Cross-account & tenant isolation
A full-scope, objective-led simulation of a targeted attack — testing your people, processes, and technology together.
- Threat intelligence-led scenarios
- Physical & social engineering
- Command & control simulation
- Detection & response validation
Testing aligned to EU compliance requirements
Regulatory pressure to demonstrate active security testing is growing across Europe. Our penetration testing engagements are scoped and documented to directly support your obligations under the frameworks that matter most.

NIS2
The EU's Network and Information Security directive requires organisations to implement technical measures including regular security assessments. Our testing supports NIS2 Article 21 compliance obligations.

DORA
The Digital Operational Resilience Act mandates threat-led penetration testing (TLPT) for financial entities. We deliver DORA-aligned assessments including threat intelligence-led red team exercises.

ISO 27001
Penetration testing is a recognised control under ISO 27001 Annex A. We deliver testing that maps directly to your ISMS and supports certification audits and annual reviews.
What sets us apart
Certified, experienced testers
- Our team holds industry-recognised certifications including OSCP, CREST CRT, and CHECK Team Leader — not junior analysts running automated scans.
Reports built for action
- Every finding includes a clear risk rating, proof-of-concept evidence, and practical remediation steps — written for both technical teams and the boardroom.
Retest included as standard*
- We don't just find the issues and disappear. A retest to validate remediation is part of every engagement — so you close with confidence.
Connected to your broader security programme
- Pentest findings feed directly into your vulnerability management and detection & response processes — not just a standalone PDF report.
Ready to put your defences to the test?
Tell us what you want to test and we'll scope an engagement that fits your environment, timeline, and compliance requirements.


















