About Our Company

Shisa Integrated Security (SIS) is a specialist physical penetration testing and security consulting firm based in Greater London. We focus on helping organizations uncover and address physical security vulnerabilities before real attackers can exploit them. Founded by a team passionate about security from both the digital and physical worlds, we provide practical, real-world testing that pushes beyond paper-based audits. Whether you’re securing sensitive government facilities, pharmaceutical assets, or high-value data centers, our goal is simple: make your organization harder to break into.

At SIS, we believe security should be tested the way attackers actually operate — creatively, relentlessly, and in the real world. Our mission is to help organizations strengthen their physical defenses through hands-on penetration testing, meaningful insights, and collaborative security consulting.

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Our services include: Physical Penetration Testing Covert break-ins, lock bypassing, tailgating, and on-site intrusion simulations to assess real-world vulnerabilities. Access Control & Barrier Testing Evaluations of locks, doors, badge systems, surveillance coverage, and alarm response. Social Engineering Assessments In-person social engineering attempts including pretexting, impersonation, and phishing to test human-layer security. Red Team Engagements Multi-layered operations that combine physical, social, and technical tactics to mirror sophisticated attackers.

We don’t just test — we help you build better security. Our consulting services include: Physical Security Reviews Assessing the effectiveness of your security layouts, controls, and response procedures. Policy & Procedure Development Supporting the creation of practical security policies for access, visitor management, and escalation paths. Staff Awareness Training Teaching your teams to spot social engineering, enforce access protocols, and respond to suspicious activity. Remediation Support Working with you to fix security gaps efficiently with actionable, step-by-step guidance.

Real-World Testing, Real Results We test like real attackers — using creativity, stealth, and problem-solving to challenge your defenses. Approachable, Collaborative Team We work with you, not against you. Our process is respectful, transparent, and geared toward long-term improvement. Tailored Engagements Every client is unique. We customize each test to your specific environment, threats, and priorities. Focused on What Matters We specialize in protecting what’s truly valuable — whether that’s critical data, sensitive materials, or controlled spaces. Regional Expertise Based in Greater London, we offer quick, flexible, and focused services across the region.

Shisa Integrated Security was born from a simple idea: security should be tested in the real world, not just on paper. Founded by two friends with complementary backgrounds — one in penetration testing, one in physical security — SIS brings together the skills to think like attackers and the experience to understand how physical defenses really work. We started this company because we love what we do. There’s something exciting and important about challenging the systems people trust to protect what matters most — and we want to help organizations get it right.