NAICS561621National industry
Security Systems Services (except Locksmiths)
This NAICS classification covers businesses categorized under security systems services (except locksmiths).
Classification summary
This NAICS classification covers businesses categorized under security systems services (except locksmiths).
- Taxonomy
- NAICS
- Slug
- 561621
- Primary use
- Providing investigation and security services.
Related codes
Official source
U.S. Census Bureau NAICS 561621 pageOfficial Census NAICS lookup remains the anchor source for classification wording and verification.