NAICS Code Description



56161 - Investigation, Guard, and Armored Car Services

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

Securitas Holdings IncAllied Security Holdings LLC
Securitas Services IncDelta Tucker Holdings Inc
ADT Security CorporationUniversal Services America LP
G4s Holding One IncATI Systems International Inc
Johnson Cntrls SEC Sltions LLCNana Development Corporation

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