On Site Security Ltd is a professional security company in the South East, delivering structured, ACS-approved security services to commercial, industrial and construction environments across the region.
We support clients throughout Reading, Southampton, Portsmouth, Guildford and surrounding locations with reliable, performance-driven security deployment.
SIA-licensed security officers
Structured mobilisation procedures
Accountable regional management oversight
Transparent reporting systems
Responsive operational support
Not fluffy benefits.
Operational strength.
Our operations across the South East are structured, compliant and performance-driven — delivering consistent security coverage throughout Reading, Southampton, Portsmouth, Guildford and surrounding areas. Each contract operates under clear reporting frameworks, accountable supervision and defined mobilisation procedures.
Every assignment is managed through structured oversight, transparent performance tracking and clearly defined accountability channels, ensuring dependable service across both long-term contracts and urgent deployment requirements.
We provide security services across:
Berkshire
Buckinghamshire
Oxfordshire
Hampshire
Surrey
Kent
West Sussex
East Sussex
Isle of Wight
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Construction Security
Event Security & Staffing
Fire Marshal / Waking Watch
Hospitality Security
Industrial Security
Need a Security Company in the South East ?
Contact our operations team today to discuss planned or urgent deployment requirements.
Registered in England and Wales. Company number 11467839.
Address: Unit 8, St Gabriel’s Business Park, St Gabriel’s Road, Easton, Bristol BS5 0RT
Landline: 0117 914 9179
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