NAICS Code 561611 – Investigation and Personal Background Check Services
Official 6-digit NAICS national industry U.S. Census Bureau NAICS 2022
At a glance
Available companies
More specific segments
Related SIC
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Industry examples
Census industry examples, shown as published.
- Background check services
- Bounty hunting services
- Detective agencies
- Fingerprint services
- Investigation services (except credit), private
- Investigators, private
- Lie detection services
- Missing person tracing services
- Polygraph services
- Private detective services
Show all industry examples
- Private investigation services (except credit)
- Skip tracing services
Official definition
This U.S. industry comprises establishments primarily engaged in providing investigation, detective, and personal background check services.
Source: U.S. Census Bureau, NAICS 2022
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Business Lists & Company Data for NAICS 561611 - Investigation and Personal Background Check Services
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| LWG Consulting Inc Houston, TX | ||||
| Appleby And Co Inc Fresno, CA | ||||
| Alliance Worldwide Investigative Group Inc Clifton Park, NY |
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LWG Consulting Inc · Houston, TX
Contact Website Phone Employees -
Appleby And Co Inc · Fresno, CA
Contact Website Phone Employees
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More specific segments in NAICS 561611
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
5,357 U.S. companies across 9 segments · Segment codes are 8-digit commercial segments that extend the official 6-digit NAICS code. They are not official Census NAICS codes.
| Code | Segment | U.S. companies | Build your list |
|---|---|---|---|
| 561611-02 | Criminologists | 7 7 companies | |
| 561611-03 | Detective Agencies | 156 156 companies | |
| 561611-04 | Detectives-Private | 528 528 companies | |
| 561611-05 | Fingerprint Experts | 3 3 companies | |
| 561611-06 | Fingerprinting | 254 254 companies | |
| 561611-07 | Investigators | 3,987 3,987 companies | |
| 561611-08 | Law Enforcement Consultants | 75 75 companies | |
| 561611-09 | Litigation Support Service | 201 201 companies | |
| 561611-10 | Polygraph Service | 146 146 companies |
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Example companies
See how SICCODE.com evaluates businesses using documented activities and official definitions. Select a company to review its classification and the reasoning behind it.
5,357 verified U.S. companies
- Investigations Unlimited Inc Milwaukee, WI View classification →
- Hp Es Tuscaloosa, AL View classification →
- K O Investigations Little Rock, AR View classification →
- Northshore Process Service Network Evanston, IL View classification →
- Gurvich Detective Agency New Orleans, LA View classification →
- Security Enforcement Bureau Pleasantville, NY View classification →
- Advance Security Grand Rapids, MI View classification →
- American Investigations And Security International Donna, TX View classification →
Key facts
- Code
- 561611
- Classification level
- Official 6-digit NAICS national industry
- Official source
- U.S. Census Bureau · NAICS 2022
- SBA size standard
- $22 million
- Related SIC
- 7381 Detective, Guard, and Armored Car Services
Source: U.S. Small Business Administration Table of Size Standards →
Industry statistics
Historical statistics
2017 Economic Census
2017 Economic Census
- Establishments (2017)
- 8,617
- Paid employees (2017)
- 45,538
- Revenue (2017)
- $5,792,111,000
- Annual payroll (2017)
- $2,021,319,000
Why do company counts differ?
The U.S. Economic Census counts establishments with paid employees that operated during the census year, including businesses that may have since closed. Its industry classifications draw on business-reported information and government records. SICCODE.com's counts reflect verified business records currently available for purchase, with classifications based on documented business activities. Differences in reporting periods, database coverage, classification methods and verification criteria mean the totals may differ.
Cross-references
- Establishments primarily engaged in providing credit checks are classified in NAICS Code 561450 - Credit Bureaus
NAICS classification hierarchy
Five official Census levels, from sector to national industry, plus a commercial extended level.
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National industry 561611 Investigation and Personal Background Check Services
One example classification path is shown. Other branches may exist. Extended 8-digit codes are commercial segments, not official Census NAICS codes.
Related classifications
Correspondences in SIC, ISIC and NACE Rev. 2.1. These mappings do not replace the official Census definition.
| System | Code | Title |
|---|---|---|
| NAICS This page | 561611 | Investigation and Personal Background Check Services |
| SIC | 7381 | Detective, Guard, and Armored Car Services Detective, Guard, and Armored Car Services |
| ISIC Rev. 4 | 8010 | Private Security Activities Private Security Activities Fingerprinting, polygraph services |
| ISIC Rev. 4 | 8030 | Investigation Activities Investigation Activities Except fingerprinting and polygraph services |
| NACE Rev. 2.1 (via ISIC 8010, 8030) | 80.01 | Investigation and private security activities Investigation and private security activities |
Source: Eurostat, NACE Rev. 2.1 to ISIC Rev. 5 correspondence; United Nations Statistics Division, ISIC Rev. 4 to ISIC Rev. 5 correspondence table.
Sources
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Official classification source U.S. Census Bureau.
North American Industry Classification System (2022), NAICS 561611. U.S. Census Bureau → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
SICCODE.com is an independent publisher. Official NAICS titles and definitions come from the U.S. Census Bureau. Commercial database counts are SICCODE.com records.
About this classification
This page combines the official U.S. Census Bureau NAICS definition with classification crosswalks and SICCODE.com commercial data. Classifications are reviewed regularly by the Classification Review Team.