At Alliance Security, we specialise in delivering professional military and defence security services to support operations across MOD sites and high-security environments. Our trained team is equipped to manage access control, conduct foot patrols, respond to incidents, protect sensitive assets, provide a visible and reliable security presence. Whether securing military bases, training grounds, or critical infrastructure. We offer tailored solutions designed to meet the demanding standards of the defence sector.

Manned Guarding

Our manned guarding services provide a strong, visible security presence across military and defence sites. Our team control access points and patrol sensitive areas while operating confidently in high-security environments. In addition, Our guards respond swiftly to potential threats to protect personnel and infrastructure. To ensure flexibility, we tailor each contract to meet site-specific needs such as static guarding, foot patrols, gate duties and vehicle checks.

Access Control & Perimeter Security

We deliver professional defence security by managing secure entry points and enforcing perimeter protection at military bases, compounds, and restricted zones. Our staff verify personnel, monitor vehicle access and uphold strict authorisation protocols to ensure no unauthorised individuals breach high-risk areas.

24/7 Surveillance & Foot Patrols

As part of our wider defence security operations, we provide 24/7 monitoring through CCTV, motion detection systems and scheduled patrols. These patrols not only act as a visible deterrent but also play a key role in detecting suspicious behaviour or breaches quickly and effectively. Our staff operate in alignment with military protocols to maintain complete situational awareness at all times.

Incident Response & Crisis Management

We respond rapidly to alarms, threats, and incidents to minimise disruption and safeguard both personnel and infrastructure. Our response teams follow structured, military-aligned procedures to assess and manage risks, coordinating with MOD officials and emergency services where required. This is a key component of our commitment to high-performance security for the military.

Asset Protection

We secure high-value and mission-critical military assets, such as vehicles, communications equipment, and sensitive materials. Whether during active operations or storage, our teams implement access controls, surveillance, and deterrence strategies. As a result, this prevents theft, tampering, sabotage and ultimately reinforce the overall strength of your defence security posture.

Here to Support Your Security Requirements

We’ve aided the defence sector clients for over 40 years, from base security to high-value asset protection.

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Trusted Defence Security for Military Contracts

We provide comprehensive guarding for both temporary and permanent installations, including training areas, airfields, and command centres. Our presence supports safe, uninterrupted operations during exercises and daily routines. Whether deployed short-term or long-term, our teams help ensure that security for the military remains proactive, visible, and aligned with site-specific risks.

SIA Approved Contractor

As an SIA approved security company in London and the home counties, Alliance Security meets rigorous standards, ensuring you work with a legitimate and renowned organisation.

As an SIA approved security company operating across London and the Home Counties, Alliance Security meets rigorous industry standards, ensuring you’re working with a trusted and fully licensed provider. All our security personnel are trained and vetted in line with SIA regulations, giving you complete peace of mind when it comes to compliance and professionalism.

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