Castle Security Services Ltd is listed in:
 Security Services
 Security Services in Mid Glamorgan
 Security Services in Merthyr Tydfil

Guardit International is listed in:
 Security Services
 Security Services in Dorset
 Security Services in Weymouth

Wing Security Ltd is listed in:
 Security Services
 Security Services in Bedfordshire
 Security Services in Dunstable

Scotshield Ltd (Dundee) is listed in:
 Security Services
 Security Services in Angus
 Security Services in Dundee

L M S Security is listed in:
 Security Services
 Security Services in Gwent
 Security Services in Newport

The Security Training Academy Ltd is listed in:
 Security Services
 Security Services in Norfolk
 Security Services in Norwich

Anderson Security Services Ltd is listed in:
 Security Services
 Security Services in Greater London
 Security Services in London

Assured Guard Ltd is listed in:
 Security Services
 Security Services in West Midlands
 Security Services in West Bromwich

Siren Alarms is listed in:
 Security Services
 Security Services in Gloucestershire
 Security Services in Stroud

J Durrance and Co Ltd (Grays) is listed in:
 Security Services
 Security Services in Essex
 Security Services in Grays