Penetration Testing for UK Small and Medium Businesses

Penetration testing identifies vulnerabilities in your IT infrastructure before attackers do. AMVIA's penetration testing service simulates real-world attacks against your network, applications, and staff to expose weaknesses — giving you a clear, prioritised roadmap for improving your security posture.

Last updated: March 2026

Penetration testing simulates a real cyberattack against your network, applications, or staff — identifying vulnerabilities before malicious actors exploit them. AMVIA's CREST-accredited penetration testing team conducts internal, external, and web application tests for UK businesses, delivering actionable remediation reports. Most assessments complete within five to ten business days.

• 1,200+ UK businesses protected
• 24/7 Monitoring and response
• <1hr Critical incident response

What's Included

Everything you get with our penetration testing service.

External Penetration Testing

Testing your internet-facing systems — firewalls, web applications, email gateways, and VPN endpoints — to identify vulnerabilities visible to external attackers.

Internal Penetration Testing

Simulating an attacker who has gained initial access to your network, testing lateral movement, privilege escalation, and access to sensitive data.

Web Application Testing

Security testing of your web applications and customer portals against the OWASP Top 10 vulnerabilities.

Social Engineering Testing

Simulated phishing campaigns and social engineering attacks to test your staff's awareness and your organisation's human defences.

Detailed Reporting

Clear, prioritised report with executive summary, technical findings, risk ratings, and specific remediation guidance.

Remediation Verification

Follow-up testing to confirm that identified vulnerabilities have been successfully remediated.

How It Works

From initial assessment to ongoing protection.

1. Scoping
   We define the scope, targets, and rules of engagement with your team.

2. Reconnaissance
   Information gathering and vulnerability scanning to identify potential attack vectors.

3. Exploitation
   Controlled exploitation of identified vulnerabilities, simulating real attacker techniques.

4. Reporting
   Detailed report with findings, risk ratings, and prioritised remediation recommendations.

5. Debrief and Remediation
   Technical debrief with your team, followed by remediation support and verification testing.

Why Choose AMVIA for Penetration Testing

UK-based specialists delivering measurable results for businesses of every size.

Sheffield-Based, UK-Focused

Our engineering and support team operates from Sheffield. We understand UK compliance requirements, network infrastructure, and the specific challenges facing British businesses.

Accredited & Certified

AMVIA holds Cyber Essentials Plus, ISO 27001, and Microsoft Gold Partner status — giving you confidence that our services meet the highest UK security and quality standards.

1,200+ UK Businesses Protected

We manage IT and security for over 1,200 UK businesses across sectors including legal, finance, healthcare, and professional services. Our track record speaks for itself.

Fast, Responsive Support

Critical issues are responded to within one hour. Our helpdesk is available by phone, email, and portal — with dedicated account managers who know your environment.

Not Sure What You Need?

Book a free, no-obligation consultation to discuss your requirements.

Frequently Asked Questions

What types of penetration testing do you offer?
We offer external penetration testing of your internet-facing systems, internal testing that simulates an attacker inside your network, web application testing against the OWASP Top 10, and social engineering assessments including simulated phishing. Each test type addresses different risk scenarios, and we recommend the right combination based on your infrastructure and threat profile.

How often should we conduct a penetration test?
We recommend annual penetration testing at minimum, with additional tests after significant infrastructure changes such as new applications, office moves, or cloud migrations.

What do we receive in the penetration test report?
Our report includes an executive summary for leadership, detailed technical findings with risk ratings based on CVSS scoring, and specific remediation guidance for each vulnerability.

Why does CREST accreditation matter for penetration testing?
CREST accreditation confirms that our penetration testers meet rigorous competency standards set by an independent professional body.

Will the penetration test disrupt our live systems?
We design every engagement to minimise operational impact. Testing scope, timing, and rules of engagement are agreed in advance with your team.