Industry Sectors

Federal spending breakdown by NAICS industry classification. Explore which sectors receive the most government contract dollars.

$8.0T total tracked across 809 NAICS sectors

Federal Spending by NAICS Sector
SectorNAICS CodeTotal ObligatedContractsShare
Aircraft Manufacturing336411$959.1B2,58812.0%
Facilities Support Services561210$645.3B3,0828.1%
Engineering Services541330$567.4B9,5567.1%
Research and Development in the Physical, Engineering, and Life Sciences541710$387.7B2,3704.9%
Ship Building and Repairing336611$386.6B1,1564.9%
Guided Missile and Space Vehicle Manufacturing336414$347.8B7474.4%
Direct Health and Medical Insurance Carriers524114$331.2B2704.2%
Commercial and Institutional Building Construction236220$279.9B6,2073.5%
Computer Systems Design Services541512$274.8B4,7333.5%
Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)541712$224.8B2,4042.8%
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing334511$217.5B2,2072.7%
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)541715$194.8B2,8012.4%
Other Aircraft Parts and Auxiliary Equipment Manufacturing336413$182.9B2,8702.3%
All Other Professional, Scientific, and Technical Services541990$163.1B2,2582.0%
Military Armored Vehicle, Tank, and Tank Component Manufacturing336992$145.1B7071.8%
Other Computer Related Services541519$141.9B4,5331.8%
Aircraft Engine and Engine Parts Manufacturing336412$125.3B9431.6%
Administrative Management and General Management Consulting Services541611$112.7B3,6241.4%
Other Support Activities for Air Transportation488190$95.1B7491.2%
Pharmaceutical Preparation Manufacturing325412$92.2B4881.2%
Other Heavy and Civil Engineering Construction237990$81.9B1,5691.0%
Petroleum Refineries324110$81.8B6891.0%
Custom Computer Programming Services541511$74.6B2,2530.9%
Remediation Services562910$72.0B1,0370.9%
Ammunition (except Small Arms) Manufacturing332993$70.8B7090.9%
Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing334220$57.9B8230.7%
Security Guards and Patrol Services561612$54.8B1,6180.7%
Offices of Physicians (except Mental Health Specialists)621111$50.2B4550.6%
Biological Product (except Diagnostic) Manufacturing325414$44.2B1170.6%
Computer Facilities Management Services541513$42.0B8590.5%
Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing336419$41.7B2400.5%
Wired Telecommunications Carriers517110$41.6B8070.5%
Nonscheduled Chartered Freight Air Transportation481212$37.9B3660.5%
Power Boiler and Heat Exchanger Manufacturing332410$37.0B290.5%
Truck Trailer Manufacturing336212$36.7B2210.5%
Hazardous Waste Treatment and Disposal562211$36.5B730.5%
Research and Development in the Social Sciences and Humanities541720$31.3B3190.4%
Other Communications Equipment Manufacturing334290$29.7B5190.4%
Software Publishers511210$25.9B5360.3%
Deep Sea Freight Transportation483111$25.9B4140.3%
Highway, Street, and Bridge Construction237310$24.6B5860.3%
Process, Physical Distribution, and Logistics Consulting Services541614$23.9B3250.3%
Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services518210$23.5B6020.3%
All Other Support Services561990$22.9B4690.3%
Colleges, Universities, and Professional Schools611310$22.3B1400.3%
Other Technical and Trade Schools611519$22.0B4530.3%
Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing336415$21.0B460.3%
Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals)424720$20.7B1790.3%
Research and Development in Biotechnology541711$20.4B1630.3%
Other Scientific and Technical Consulting Services541690$19.6B6260.2%

Frequently Asked Questions

What are NAICS codes?

NAICS (North American Industry Classification System) codes categorize businesses by their primary activity. Federal contracts are tagged with NAICS codes to identify the industry sector of the work being performed.

Which sectors receive the most federal contract spending?

The largest sector is Aircraft Manufacturing with $959.1B in obligations across 2,588 contracts.