Security Locked In,Threats Locked Out

Professional cyber security services that protect your business from evolving threats with comprehensive penetration testing and security assessments.

1070+
Projects Delivered
320+
Customers
380+
Featured Publications
Closed Door Security Insights Platform
Live Security Results
Real-time Security Insights

Featured In Leading Publications

Our cybersecurity expertise and thought leadership have been recognised by major news outlets and industry publications worldwide

Trusted & Accredited

Our certifications and accreditations demonstrate our commitment to the highest standards of cybersecurity excellence

Industry accreditations

Recognised by leading cybersecurity organisations worldwide

Comprehensive Cybersecurity Certifications
Additional Cybersecurity Accreditations
NCSC Assured Service Provider

UK National Cyber Security Centre certified provider

Government
Cyber Scheme Certified Tester

Professional penetration testing certification

Testing
Cyber Essentials

UK government-backed cybersecurity certification

Standards
Cyber Essentials Plus

Enhanced cybersecurity certification with technical verification

Standards
CREST - Penetration Testing

Prestigious Penetration Testing Accreditation

Professional
Dubai Electronic Security Center

Certified cybersecurity provider in the UAE

Government
Cyber Force

Elite cybersecurity force certification

Professional
ISO 27001

International information security management standard

Standards
15+
Active Certifications
3
Government Approvals

Real-Time Penetration Testing Platform

Track vulnerabilities, monitor progress, and coordinate fixes through our Insights platform. Get instant visibility into your security posture with real-time monitoring and expert analyst support whenever you need it.

Enterprise-Grade Security Testing

Our innovative Insights Platform provides unparalleled visibility into your security assessment progress, enabling you to track findings, remediation efforts, and overall security posture with enterprise-level precision and reliability.

Live Dashboard

Real-time vulnerability tracking and intelligent prioritization

Advanced Analytics

Comprehensive reporting and strategic trend analysis

Expert Support

Direct access to CREST certified security professionals

Seamless Integration

Enterprise-grade connectivity with your security ecosystem

Insights Platform Dashboard

Ready to Elevate Your Security Posture?

Join industry leaders who trust our platform to strengthen their security posture. Experience enterprise-grade security testing today.

Request Demo

Why Choose Us?

Live Reporting Platform

Real-time vulnerability tracking and expert-driven insights for continuous security monitoring.

Trusted by Household Names

Recognised brands and enterprises trust our cybersecurity expertise.

Expert Support

Our certified security professionals provide expert guidance when you need it.

About Closed Door Security

Expert cybersecurity consultancy delivering comprehensive security testing and compliance services globally

2019
Founded
15+
Team Members
25+
Certifications
3
Global Offices

Leadership Team

William Wright

William Wright

Chief Executive Officer

Scotland's First Chartered Cyber Security Professional with over 15 years of experience

Cassius Edison

Cassius Edison

Chief Operating Officer

Internationally recognised cyber expert specialising in advanced persistent threats

Conor Agnew

Conor Agnew

Head of Compliance

Expert in regulatory compliance and risk management frameworks

Global Presence

Serving clients worldwide with local expertise and global reach

United Kingdom Office
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United Kingdom

Stornoway, Scotland

GMT

United States Office
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United States

Des Moines, Iowa

CST

United Arab Emirates Office
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United Arab Emirates

Dubai, UAE

GST

Get In Touch

Ready to secure your business? Contact our team of certified experts today for a consultation.

Contact Us

Get in touch for questions about our services

Phone

+44131 460 4180

Speak directly with our security experts

9:00 AM - 5:00 PM GMT

Email

[email protected]

Get detailed responses within 24 hours

Business Hours

Schedule Meeting

Book a consultation

30-minute strategy session with our team

Flexible Scheduling

Our Global Offices

Local expertise with global reach across three continents

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United Kingdom

Outer Hebrides, Scotland

+44131 460 4180
9:00 AM - 5:00 PM GMT
GMT
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United States

Des Moines, IA

+1 (515) 123-4567
9:00 AM - 5:00 PM CST
CST
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United Arab Emirates

Dubai, UAE

+971 4 123 4567
9:00 AM - 5:00 PM GST
GST