NAV
Integrity
Teamwork
Attitude
Performance
Passion

Welcome to SIA Security

As one of London’s leading security companies, SIA Security has experience in providing manned guarding to some of the nation’s highest profile sites. We value the diverse range of our clients – from short term to on-going contracts of all Industries. Our clients benefit from our customer-focused, personalised service with measured results.

We deliver security solutions for private, commercial, corporate, local government and industry clientele. We have established strong relationships with many high-profile organisations through exceptional customer service, high quality of personnel and a sound understanding of unique client requirements.





SIA Security provides expert services across the following market sectors:


Arts, Events & Recreation Aviation Commercial Property Data & Communication Education Energy & Resources Financial Services Government Health Industrial & Manufacturing Maritime & Logistics Strategic Medical & Rescue