2002 NAICS Definitions
561611 Investigation Services
This U.S. industry comprises establishments primarily engaged in providing investigation and detective services.
Cross-References. Establishments primarily engaged in providing credit checks are classified in Industry 561450, Credit Bureaus.
| Go to: | No change 1997 to 2002 | 2002 NAICS to 1987 SIC | 1997 Economic Census | Bridge Between 1997 NAICS and SIC |
| 2002 NAICS | 1997 NAICS | 1987 SIC | Corresponding Index Entries |
|---|---|---|---|
| 561611 | 561611 | 7381 | Detective agencies |
| 561611 | 561611 | 7381 | Fingerprint services |
| 561611 | 561611 | 7381 | Investigation services (except credit), private |
| 561611 | 561611 | 7381 | Investigators, private |
| 561611 | 561611 | 7381 | Lie detection services |
| 561611 | 561611 | 7381 | Missing person tracing services |
| 561611 | 561611 | 7381 | Polygraph services |
| 561611 | 561611 | 7381 | Private detective services |
| 561611 | 561611 | 7381 | Private investigation services (except credit) |
| 561611 | 561611 | 7381 | Skip tracing services |
