Sheriff Security is listed in:
 Security Services
 Security Services in West Midlands
 Security Services in Birmingham

Lock Stock and Barrell is listed in:
 Security Services
 Security Services in Hertfordshire
 Security Services in Hertford

Vertex Security Services is listed in:
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 Security Services in Merseyside
 Security Services in Liverpool

Macron Safety Systems is listed in:
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 Security Services in Norfolk
 Security Services in Great Yarmouth

Sterling Shield Security is listed in:
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 Security Services in Stirlingshire
 Security Services in Stirling

Roberts Nationwide Support Services is listed in:
 Security Services
 Security Services in Bedfordshire
 Security Services in Luton

C B Security Services Ltd (Luton) is listed in:
 Security Services
 Security Services in Bedfordshire
 Security Services in Luton

Crimewatch 2000 Ltd (Huddersfield) is listed in:
 Security Services
 Security Services in West Yorkshire
 Security Services in Huddersfield

Kept Security Services is listed in:
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 Security Services in Hertfordshire
 Security Services in Hemel Hempstead

First Alert UK Ltd is listed in:
 Security Services
 Security Services in Kent
 Security Services in Orpington