NAICS 561621
Security Systems Services (except Locksmiths)
Federal contractor footprint · 26 profiled contractors
Combined Contractor Footprint
$2.5B
Obligations under NAICS 561621 across the 26 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 — Security Systems Services (except Locksmiths)
Obligations under NAICS 561621 across the 26 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.
- M. C. DEAN, INC.$787.4M
- COVENANT AVIATION SECURITY, LLC$466.2M
- CACI INTERNATIONAL INC$367.2M
- SERCO INC$334.7M
- THE GEO GROUP, INC.$146.2M
- SECURITAS AB$117.9M
- PARSONS CORPORATION$77.5M
- KBR, INC.$63.0M
- TRIPLE CANOPY INC$53.2M
- CHEROKEE NATION$35.7M
Agencies Buying This Code
Estimated by weighting each profiled contractor's agency mix by its NAICS 561621 footprint. Directional, not an agency-by-code total.
Competing in NAICS 561621?
Get your Federal Readiness Score →Obligations under NAICS 561621 across the 26 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. Standard 90-day reporting lag per FAR 4.606(c). Read the full methodology.