Penetration Testing Services

This service supports both the technical owners who fix the findings and the non-technical approvers who sign them off. Whether you are a founder responding to a client security questionnaire, a compliance lead facing an ISO 27001 or PCI DSS audit deadline, a board sponsor validating due diligence ahead of investment, or an engineer who has spotted a gap, the engagement is scoped to your trigger and your environment. Testing is available across London and the UK. Match your situation below:

• Customer-facing web apps and APIs: for teams running online platforms or exposing APIs. Validates injection, authentication, access-control and session handling flaws before customers or attackers find them.
• Internal and external network testing: for organisations with internet-facing infrastructure or internal domains. Validates perimeter exposure, lateral movement risk, and misconfigured services.
• Cloud workloads: for teams that have moved to AWS, Azure or GCP. Validates identity and access configuration, exposed storage, and privilege escalation paths unique to cloud environments.
• Mobile apps: for iOS and Android product owners. Validates insecure storage, API abuse, and client-side controls.
• Wireless testing: for sites with corporate Wi-Fi. Validates segmentation and rogue-access risk.
• Social engineering and phishing: for organisations testing human and process resilience, not just technology.
• Red teaming: for mature security teams wanting a goal-based, multi-vector attack simulation rather than a single-asset test.

How the Engagement Works and What You Receive

The engagement follows a predictable, staged process with clear client touchpoints, so you always know what is happening and when.

1. Scoping: we agree assets, boundaries, objectives and any operational constraints before any testing begins.
2. Testing window: testing runs within an agreed window using safe-testing practice designed to avoid disruption to live systems; higher-risk actions are agreed in advance and destructive testing is avoided on production without explicit sign-off.
3. Findings and debrief: we walk your team through what was found, what it means, and what to prioritise.
4. Remediation guidance: practical, specific fix advice rather than a raw vulnerability dump.
5. Retest confirmation: we verify that remediation has closed the issues, giving you evidence the risk is resolved.

Your data and findings are handled confidentially throughout, with reports shared securely and access limited to the people who need it. The report is the thing you actually keep and act on, so it is written to be usable by two audiences at once:

• Executive summary for stakeholders and approvers, in plain business language they can quote in a board update or share with a client.
• Technical findings with reproduction detail and evidence for the engineers who fix them.
• Risk ratings so severity and business impact are clear at a glance.
• Prioritised remediation steps ordered by what to fix first.
• Retest confirmation documenting that issues have been closed.

This structure is what auditors and clients expect to see. The executive summary and risk ratings give a compliance assessor the assurance they need at a glance, while the technical detail and retest confirmation provide the evidence trail behind it. The report supports evidence requirements for ISO 27001, PCI DSS, SOC 2 and Cyber Essentials or Cyber Essentials Plus, and answers the technical proof requests common in client security questionnaires, so a single engagement can serve both your auditor and your prospects.

Scoping Your Test — What Affects Cost, Timing and Suitability

Before you enquire, it helps to understand what drives the size of an engagement and whether a penetration test is even the right tool for your situation. The table below shows the main factors that move scope, cost and timing.

To scope accurately, we typically need an asset inventory, details of the environments involved, any access or credentials required, clear in-scope and out-of-scope boundaries, and your compliance target if one applies. Having this ready shortens the path from enquiry to a firm quote and reduces back-and-forth before testing can be booked.

A penetration test is not always the right first step, and it is worth being honest about that. If you have never run automated scanning and simply want broad coverage of known issues, a vulnerability assessment may deliver better value initially and can be a sensible precursor to a full test. If your priority is catching new weaknesses continuously between releases, continuous monitoring or an ongoing retainer suits better than a single point-in-time test. Use a one-off test for a specific validation or compliance milestone, and an ongoing model where your code or infrastructure changes frequently. Retesting cadence also depends on change: many organisations test annually as a baseline and again after any significant release or architecture change. Refer to the current service listings to compare engagement options and request a scoping call or quote.

Why Choose Us for Sensitive Security Testing

Trusting a provider with sensitive systems comes down to verifiable competence, not marketing claims. The strongest signal in the UK market is independent accreditation, and you should be able to confirm it yourself rather than take it on faith. CREST membership can be checked directly on the CREST member directory, and NCSC CHECK status applies specifically to authorised testing of public sector and critical national infrastructure systems where it is required. If a provider names an accreditation, ask which scheme, under which name, and check the register before you commit.

• Testing carried out by qualified, experienced testers rather than an automated scan presented as a service.
• UK-relevant accreditation and standards you can verify independently [accreditation detail].
• Outcomes tied to real triggers: audit readiness, credible answers to client security questionnaires, and reducing the risk of a breach.
• Reports written for both technical teams and decision-makers, so findings translate into action.

If you want a focused, specialist engagement with direct access to the people doing the testing, this is a better fit than a large-brand, high-volume approach where your work may be handed to a rotating pool. To move forward, request a scoping call or quote through the live service details, and we will confirm the right test type and scope for your environment.

Frequently Asked Questions