NAICS Code Description


56161 - Investigation, Guard, and Armored Car Services

Top Businesses by Annual Sales for 56161 – Click for Complete Profiles:

Securitas Holdings IncNana Development Corporation
Securitas SEC Svcs USA IncATI Systems International Inc
Allied Security Holdings LLCUS Security Associates Inc
Brinks IncorporatedInter-Con Security Systems Inc
Universal Services America LPDunbar Armored Inc

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.

Illustrative Examples:

Armored car services
Private detective services
Bodyguard services
Security guard services
Polygraph services


Cross-References. Establishments primarily engaged in--

  • Providing credit checks--are classified in Industry 56145, Credit Bureaus; and
  • Selling, installing, monitoring, and maintaining security systems and devices (e.g., burglar and fire alarm systems)--are classified in Industry 56162, Security Systems Services.

NAICS Codes that fall under 56161 - Investigation, Guard, and Armored Car Services