NAICS 561990
All Other Support Services
Federal contractor footprint · 119 profiled contractors
Combined Contractor Footprint
$13.1B
Obligations under NAICS 561990 across the 119 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 — All Other Support Services
Obligations under NAICS 561990 across the 119 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.
- LOCKHEED MARTIN CORP$10.1B
- RTX CORPORATION$789.4M
- VERTEX MODERNIZATION AND SUSTAINMENT LLC$312.3M
- BOOZ ALLEN HAMILTON HOLDING CORPORATION$295.2M
- ROCKWELL COLLINS AUSTRALIA PTY LIMITED$266.2M
- PRIDE INDUSTRIES$220.3M
- SIERRA NEVADA COMPANY, LLC$175.6M
- LUMBEE TRIBE ENTERPRISES LLC$162.0M
- CGI FEDERAL INC.$127.0M
- RESEARCH TRIANGLE INSTITUTE$95.9M
Agencies Buying This Code
Estimated by weighting each profiled contractor's agency mix by its NAICS 561990 footprint. Directional, not an agency-by-code total.
- Department of Defense (Department of War)$11.2B
- National Aeronautics and Space Administration$388.1M
- Department of Energy$303.1M
- Department of Health and Human Services$185.6M
- Department of Transportation$184.3M
- Department of State$165.1M
- General Services Administration$147.2M
- Department of Homeland Security$96.2M
Competing in NAICS 561990?
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Obligations under NAICS 561990 across the 119 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.