- Code Security Systems Ltd (Address: Unit H2-H4, Hastingwood Trading Estate, London N18 3HT)Location: LondonCategory: Security Companies
- Secured Locations Ltd (Address: Studio L, 80, Eastway, London E9 5JH)Location: LondonCategory: Security Companies
- Grosvenor Security Services Ltd (Address: 7-8, Warren Court, Euston Rd, London NW1 3AA)Location: LondonCategory: Security Companies
- Equitis Defence (Address: Burlington Lane, Chiswick, London W4 3EU)Location: LondonCategory: Security Companies
- DRAM Security Systems (Address: Flat 69, Wenham House, Ascalon Street, London SW8 4DZ)Location: LondonCategory: Security Companies
- City Keyholding Ltd (Address: 41 Lothbury, London EC2R 7HG)Location: LondonCategory: Security Companies
- P & N Security Group (Address: 16 Hanover Square, London W1S 1HT)Location: LondonCategory: Security Companies
- Multi - Sector Security Ltd (Address: 134 Marvels Lane, London SE12 9PG)Location: LondonCategory: Security Companies
- MCd Security Systems (Address: 21-22, Maiden Lane, London WC2E 7NA)Location: LondonCategory: Security Companies
- Mayfair One Security (Address: 26 York Street, London W1U 6PZ)Location: LondonCategory: Security Companies
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