- Davenheath Ltd (Address: Unit 3, Kingfisher House, Trinity Park, Trinity Way, London E4 8TD)Location: LondonCategory: Security Companies
- Security Shutters Ltd (Address: )Location: LondonCategory: Security Companies
- Deterrent Security (Address: 58 Acacia Rd, London NW8 6AG)Location: LondonCategory: Security Companies
- Omni Security Services Ltd (Address: Montague Chambers, Montague Close, London SE1 9DA)Location: LondonCategory: Security Companies
- Charter Security (Address: Suite 6, Ensign House, Admirals Way, London E14 9XQ)Location: LondonCategory: Security Companies
- Skylight Security (Address: Suite 9, 94 Fulham Palace Road, London W6 9PL)Location: LondonCategory: Security Companies
- Hauk Facilities Management & Security Services (Address: )Location: LondonCategory: Security Companies
- Equitis Defence (Address: Burlington Lane, Chiswick, London W4 3EU)Location: LondonCategory: Security Companies
- Phase One Security Ltd (Address: Suite 22206, Crusader House, 145-157, St. John St, London EC1V 4PY)Location: LondonCategory: Security Companies
- Westminster Security Ltd (Address: 34 Buckingham Palace Road, London SW1W 0RH)Location: LondonCategory: Security Companies
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