NAICS Code 5616: Investigation and Security Services
The NAICS code for Investigation and Security Services is 5616.
Investigation and Security Services establishments provide uniformed guard services, alarm monitoring, investigation, and armored car services to protect persons, property, and information. Contract security is one of the largest private-sector employer categories and serves clients ranging from government facilities to retail stores.
Investigation and Security Services falls under the NAICS code for NAICS 561 — Administrative and Support Services, a subsector of Administrative and Support and Waste Management and Remediation Services.
61,348
Total US Entities
3
NAICS Industries
5616
NAICS Code
Classification
NAICS Industries (5-digit)
| NAICS Code | Industry Title | US Entities |
|---|---|---|
| 56161 | NAICS 56161 — Investigation, Guard, and Armored Car Services | 40,000 |
| 56162 | NAICS 56162 — Security Systems Services (except Locksmiths) | 20,000 |
| 56169 | NAICS 56169 — Other Investigation and Security Services | 1,348 |
NAICS 2022
Search NAICS Codes
Browse
Other Industry Groups in Administrative and Support Services
Working with legacy records? convert a NAICS code to SIC using the mapping table — NAICS 2022 at the five-digit industry level paired with SIC 1987 four-digit industries, with coverage gaps stated.