Spend Category Directory
300 NAICS spend categories ranked by FY2024 federal market size. Each category page shows the top vendors and agencies behind the spend, from USASpending.gov award data.
300 NAICS categories · sorted by market size · page 1 of 3
- 1ENGINEERING SERVICES541330 · $53.1B
- 2RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY)541715 · $44.9B
- 3AIRCRAFT MANUFACTURING336411 · $44.2B
- 4DIRECT HEALTH AND MEDICAL INSURANCE CARRIERS524114 · $43.9B
- 5FACILITIES SUPPORT SERVICES561210 · $38.4B
- 6COMPUTER SYSTEMS DESIGN SERVICES541512 · $33.8B
- 7COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION236220 · $30.9B
- 8GUIDED MISSILE AND SPACE VEHICLE MANUFACTURING336414 · $28.3B
- 9OTHER COMPUTER RELATED SERVICES541519 · $25.4B
- 10SHIP BUILDING AND REPAIRING336611 · $24.2B
- 11SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL, AND NAUTICAL SYSTEM AND INSTRUMENT MANUFACTURING334511 · $17.2B
- 12OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING336413 · $16.9B
- 13PHARMACEUTICAL PREPARATION MANUFACTURING325412 · $15.9B
- 14ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES541611 · $15.1B
- 15ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES541990 · $14.2B
- 16PETROLEUM REFINERIES324110 · $11.7B
- 17CUSTOM COMPUTER PROGRAMMING SERVICES541511 · $10.9B
- 18OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION237990 · $10.2B
- 19RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES541710 · $9.7B
- 20RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT BIOTECHNOLOGY)541712 · $9.7B
- 21AMMUNITION (EXCEPT SMALL ARMS) MANUFACTURING332993 · $9.1B
- 22AIRCRAFT ENGINE AND ENGINE PARTS MANUFACTURING336412 · $8.4B
- 23REMEDIATION SERVICES562910 · $7.9B
- 24OTHER SUPPORT ACTIVITIES FOR AIR TRANSPORTATION488190 · $7.1B
- 25MILITARY ARMORED VEHICLE, TANK, AND TANK COMPONENT MANUFACTURING336992 · $6.8B
- 26SOFTWARE PUBLISHERS511210 · $6.1B
- 27SECURITY GUARDS AND PATROL SERVICES561612 · $5.8B
- 28NONSCHEDULED CHARTERED FREIGHT AIR TRANSPORTATION481212 · $5.1B
- 29OFFICES OF PHYSICIANS (EXCEPT MENTAL HEALTH SPECIALISTS)621111 · $5.1B
- 30RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING334220 · $5.1B
- 31MEDICINAL AND BOTANICAL MANUFACTURING325411 · $4.7B
- 32ALL OTHER MISCELLANEOUS MANUFACTURING339999 · $4.0B
- 33RESEARCH AND DEVELOPMENT IN BIOTECHNOLOGY (EXCEPT NANOBIOTECHNOLOGY)541714 · $3.9B
- 34ELECTRONIC COMPUTER MANUFACTURING334111 · $3.6B
- 35SERVICE ESTABLISHMENT EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS423850 · $3.5B
- 36DEEP SEA FREIGHT TRANSPORTATION483111 · $3.3B
- 37COMPUTER FACILITIES MANAGEMENT SERVICES541513 · $3.3B
- 38COMPUTING INFRASTRUCTURE PROVIDERS, DATA PROCESSING, WEB HOSTING, AND RELATED SERVICES518210 · $3.1B
- 39PROCESS, PHYSICAL DISTRIBUTION, AND LOGISTICS CONSULTING SERVICES541614 · $2.7B
- 40HIGHWAY, STREET, AND BRIDGE CONSTRUCTION237310 · $2.6B
- 41OTHER COMMUNICATIONS EQUIPMENT MANUFACTURING334290 · $2.5B
- 42HAZARDOUS WASTE TREATMENT AND DISPOSAL562211 · $2.5B
- 43NONSCHEDULED CHARTERED PASSENGER AIR TRANSPORTATION481211 · $2.4B
- 44OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES541690 · $2.4B
- 45DRUGS AND DRUGGISTS' SUNDRIES MERCHANT WHOLESALERS424210 · $2.2B
- 46POWER BOILER AND HEAT EXCHANGER MANUFACTURING332410 · $2.2B
- 47WIRED TELECOMMUNICATIONS CARRIERS517110 · $2.2B
- 48JANITORIAL SERVICES561720 · $2.0B
- 49SURGICAL AND MEDICAL INSTRUMENT MANUFACTURING339112 · $2.0B
- 50ALL OTHER SUPPORT SERVICES561990 · $2.0B
- 51MEDICAL, DENTAL, AND HOSPITAL EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS423450 · $1.9B
- 52OTHER GUIDED MISSILE AND SPACE VEHICLE PARTS AND AUXILIARY EQUIPMENT MANUFACTURING336419 · $1.9B
- 53ADVERTISING AGENCIES541810 · $1.8B
- 54BIOLOGICAL PRODUCT (EXCEPT DIAGNOSTIC) MANUFACTURING325414 · $1.7B
- 55SMALL ARMS, ORDNANCE, AND ORDNANCE ACCESSORIES MANUFACTURING332994 · $1.7B
- 56INDUSTRIAL BUILDING CONSTRUCTION236210 · $1.5B
- 57GUIDED MISSILE AND SPACE VEHICLE PROPULSION UNIT AND PROPULSION UNIT PARTS MANUFACTURING336415 · $1.5B
- 58AUTOMOBILE MANUFACTURING336111 · $1.5B
- 59ENVIRONMENTAL CONSULTING SERVICES541620 · $1.5B
- 60GENERAL MEDICAL AND SURGICAL HOSPITALS622110 · $1.5B
- 61COMMERCIAL BAKERIES311812 · $1.5B
- 62OFFICES OF CERTIFIED PUBLIC ACCOUNTANTS541211 · $1.4B
- 63SATELLITE TELECOMMUNICATIONS517410 · $1.4B
- 64TRUCK TRAILER MANUFACTURING336212 · $1.4B
- 65ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE811210 · $1.4B
- 66OTHER ELECTRONIC COMPONENT MANUFACTURING334419 · $1.4B
- 67SMALL ARMS AMMUNITION MANUFACTURING332992 · $1.3B
- 68OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE811219 · $1.3B
- 69OTHER ACTIVITIES RELATED TO CREDIT INTERMEDIATION522390 · $1.3B
- 70RESEARCH AND DEVELOPMENT IN THE SOCIAL SCIENCES AND HUMANITIES541720 · $1.3B
- 71SUPPORT ACTIVITIES FOR FORESTRY115310 · $1.3B
- 72OTHER TECHNICAL AND TRADE SCHOOLS611519 · $1.3B
- 73FOOD SERVICE CONTRACTORS722310 · $1.3B
- 74OTHER MANAGEMENT CONSULTING SERVICES541618 · $1.3B
- 75SURGICAL APPLIANCE AND SUPPLIES MANUFACTURING339113 · $1.3B
- 76ALL OTHER MISCELLANEOUS FOOD MANUFACTURING311999 · $1.2B
- 77PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING611430 · $1.2B
- 78WATER AND SEWER LINE AND RELATED STRUCTURES CONSTRUCTION237110 · $1.2B
- 79PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS238220 · $1.2B
- 80EXPLOSIVES MANUFACTURING325920 · $1.1B
- 81COURIERS AND EXPRESS DELIVERY SERVICES492110 · $1.1B
- 82NONFERROUS METAL (EXCEPT ALUMINUM) SMELTING AND REFINING331410 · $1.1B
- 83RESEARCH AND DEVELOPMENT IN BIOTECHNOLOGY541711 · $1.1B
- 84ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING334516 · $1.1B
- 85TELEMARKETING BUREAUS AND OTHER CONTACT CENTERS561422 · $1.1B
- 86NONFERROUS METAL (EXCEPT COPPER AND ALUMINUM) ROLLING, DRAWING, AND EXTRUDING331491 · $1.0B
- 87FRUIT AND VEGETABLE CANNING311421 · $1.0B
- 88CONSTRUCTION MACHINERY MANUFACTURING333120 · $1.0B
- 89ARCHITECTURAL SERVICES541310 · $978.2M
- 90TEMPORARY HELP SERVICES561320 · $961.8M
- 91SOFTWARE PUBLISHERS513210 · $957.4M
- 92ELECTRIC POWER DISTRIBUTION221122 · $951.0M
- 93MOTOR VEHICLE BODY MANUFACTURING336211 · $927.0M
- 94COMMERCIAL AND SERVICE INDUSTRY MACHINERY MANUFACTURING333310 · $915.5M
- 95IRRADIATION APPARATUS MANUFACTURING334517 · $891.3M
- 96INDUSTRIAL NONBUILDING STRUCTURE CONSTRUCTION234930 · $874.6M
- 97OTHER ACCOUNTING SERVICES541219 · $852.1M
- 98HUMAN RESOURCES CONSULTING SERVICES (2007), HUMAN RESOURCES AND EXECUTIVE SEARCH CONSULTING SERVICES (2002)541612 · $842.3M
- 99PERISHABLE PREPARED FOOD MANUFACTURING311991 · $837.8M
- 100NURSING CARE FACILITIES (SKILLED NURSING FACILITIES)623110 · $836.8M
Data: USASpending.gov federal awards · FY2024. Part of the Public Spend explorer.