Investigation, Guard, & Armored Car Services
Key Figures
Figures are published for NAICS 56161 directly.
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Official definition
This industry comprises establishments primarily engaged in providing one or more of the following: (1) investigation and detective services; (2) guard and patrol services; and (3) picking up and delivering money, receipts, or other valuable items with personnel and equipment to protect such properties while in transit.
Source: US Census Bureau, 2017 NAICS Definitions. Public domain.
Illustrative examples
- Armored car services
- Private detective services
- Bodyguard services
- Security guard services
- Polygraph services
Which code does this activity belong in?
Investigation, Guard, and Armored Car Services establishments provide investigative work, physical security personnel, or protected transportation of valuables. The boundary with Security Systems Services separates personnel-based security activities from equipment-based security; the former code covers bodyguards, detectives, and armored car operators, while Security Systems Services covers the installation, repair, and monitoring of electronic alarm systems and locking devices. Establishments primarily engaged in selling or servicing physical security equipment belong in Security Systems Services, not this code.