A more recent edition of NAICS is available.
2012 Edition

national industry 561611

Investigation Services

Overview

This U.S. industry comprises establishments primarily engaged in providing investigation and detective services.

The immediate parent of national industry 561611 is international industry 56161: Investigation, Guard, and Armored Car Services

Illustrative Examples

  • Fingerprinting services Private detective services Polygraph services
  • Private investigative services

2012 NAICS Edition Cross References

  • Establishments primarily engaged in providing credit checks are classified in Industry 561450, Credit Bureaus.

Sub-Descriptions

  1. 561611 - Detective agencies
  2. 561611 - Fingerprint services
  3. 561611 - Investigation services (except credit), private
  4. 561611 - Investigators, private
  5. 561611 - Lie detection services
  6. 561611 - Missing person tracing services
  7. 561611 - Polygraph services
  8. 561611 - Private detective services
  9. 561611 - Private investigation services (except credit)
  10. 561611 - Skip tracing services

History

The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.

Edition Existed Equivalent Value
2002 561611
2007 561611
2012 561611
2017 561611
2022 561611

Standard Industrial Classification (SIC) Mappings

  1. 7381 - Detective, Guard, and Armored Car Services

Insurance Industry Mappings

The US Property and Casualty Insurance Industry may use the following classification descriptions which might encompass national industry 561611, Investigation Services:

  1. administrative and support and waste management and remediation service
  2. administrative and support service
  3. detective agency
  4. detective agency general liability is not available
  5. detective guard and armored car service
  6. detective or investigative agency
  7. detective or investigative agency private
  8. detective or investigative agency private condominium office personal injury and advertising injury endorsement bp 04 37 must be attached
  9. detective or investigative agency private office personal injury and advertising injury endorsement bp 04 37 must be attached
  10. detective or investigative agency private personal injury and advertising injury endorsement bp 04 37 must be attached condominium office
  11. detective or investigative agency private personal injury and advertising injury endorsement bp 04 37 must be attached office
  12. detective or patrol agency
  13. detective patrol agency security service
  14. investigation and security service
  15. investigation guard and armored car service
  16. investigation service
  17. office detective or investigative agency private personal injury and advertising injury endorsement bp 04 37 must be attached condominium office
  18. office detective or investigative agency private personal injury and advertising injury endorsement bp 04 37 must be attached office
  19. patrol agency detective security service
  20. security service detective patrol agency

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