North American Industry Classification System (NAICS) 2007 - Service Industries
- 56 - Administrative and Support, Waste Management and Remediation Services
- 561 - Administrative and Support Services
- 5616 - Investigation and Security Services
- 56162 - Security Systems Services
- 561621 - Security Systems Services (except Locksmiths)US
- 561622 - LocksmithsUS
- Date modified: