Arfryn Security is listed in:
 Security Services
 Security Services in Glamorgan
 Security Services in Swansea

Highlands Security Services Ltd is listed in:
 Security Services
 Security Services in Ross-shire
 Security Services in Strathpeffer

Northumbria Satellite (Blyth) is listed in:
 Security Services
 Security Services in Northumberland
 Security Services in Blyth

S R S International is listed in:
 Security Services
 Security Services in Herefordshire
 Security Services in Hereford

Securitag It is listed in:
 Security Services
 Security Services in Berkshire
 Security Services in Reading

Imperial Knights Ltd (London) is listed in:
 Security Services
 Security Services in Greater London
 Security Services in London

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

Group 4 Securicor is listed in:
 Security Services
 Security Services in West Sussex
 Security Services in Crawley

Datasafe is listed in:
 Security Services
 Security Services in Kent
 Security Services in Canterbury

Arena Guards is listed in:
 Security Services
 Security Services in West Midlands
 Security Services in Walsall