Variant of NAICS 2002 - Information and Communication Technology (ICT) Sector
- 5616 - Investigation and Security Services
- 56161 - Investigation, Guard and Armoured Car Services
- 561611 - Investigation ServicesUS
- 561612 - Security Guard and Patrol ServicesUS
- 561613 - Armoured Car ServicesUS
- 56162 - Security Systems Services
- 561621 - Security Systems Services (except Locksmiths)US
- 561622 - LocksmithsUS
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