NAICS 561611
Investigation and Personal Background Check Services
Federal contractor footprint · 35 profiled contractors
Combined Contractor Footprint
$3.5B
Obligations under NAICS 561611 across the 35 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record.
Top Federal Contractors — Investigation and Personal Background Check Services
Obligations under NAICS 561611 across the 35 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record.
- CACI INTERNATIONAL INC$2.5B
- PERATON RISK DECISION INC.$628.9M
- ARCTIC SLOPE REGIONAL CORPORATION$172.3M
- ACCENTURE FEDERAL SERVICES LLC$108.5M
- CONTINUITY GLOBAL SOLUTIONS LLC$31.5M
- CARAHSOFT TECHNOLOGY CORP$28.0M
- CHENEGA DEFENSE & AEROSPACE SOLUTIONS, LLC$12.8M
- SOS INTERNATIONAL LLC$10.5M
- DNI EMERGING TECHNOLOGIES, LLC$9.1M
- HO-CHUNK, INC.$6.9M
Agencies Buying This Code
Estimated by weighting each profiled contractor's agency mix by its NAICS 561611 footprint. Directional, not an agency-by-code total.
Competing in NAICS 561611?
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Obligations under NAICS 561611 across the 35 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record. Spending data from FPDS-NG via USASpending.gov, read between 2026-09-22 and 2026-10-27. Standard 90-day reporting lag per FAR 4.606(c). Read the full methodology.