NAICS 4 Digit Industry Group 5616

Industry Group 5616

NAICS 4 digit Industry Group 5616 – Investigation and Security Services

Definition of NAICS 4 digit industry group 5616: Investigation and Security Services.

Four Digit Industry Group Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group (Where you are now), 5 digit industry, and the most specific is the 6 digit NAICS code. If industry group 5616 does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 56: Administrative and Support and Waste Management and Remediation Services
    • Subsector 561: Administrative and Support Services
      • Industry Group 5616: Investigation and Security Services
        • Industry 56161: Investigation, Guard, and Armored Car Services
          • 6 Digit Code(s) NAICS 561611: Investigation Services
          • 6 Digit Code(s) NAICS 561612: Security Guards and Patrol Services
          • 6 Digit Code(s) NAICS 561613: Armored Car Services
        •  Industry 56162: Security Systems Services
          • 6 Digit Code(s) NAICS 561621: Security Systems Services (except Locksmiths)
          • 6 Digit Code(s) NAICS 561622: Locksmiths

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NAICS 4 Digit Industry Group 5616