NAICS codes and size standards
Look up a code's SBA size standard and the agencies that bought under it in FY2025.
122 code guides · SBA table effective March 2023 · FY2025 federal contract obligations, USAspending.gov
Search all 1,012 codes by what you sellTop 20 codes by FY2025 spending
All NAICS code guides
23 Construction
3 guides
31-33 Manufacturing
50 guides
- 331410Nonferrous Metal (except Aluminum) Smelting and RefiningSize standard 1,000 employeesFY2025 $1.5B
- 331491Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and ExtrudingSize standard 900 employeesFY2025 $566.3M
- 332410Power Boiler and Heat Exchanger ManufacturingSize standard 750 employeesFY2025 $2.2B
- 332510Hardware ManufacturingSize standard 750 employeesFY2025 $536.9M
- 332722Bolt, Nut, Screw, Rivet, and Washer ManufacturingSize standard 600 employeesFY2025 $340.2M
- 332911Industrial Valve ManufacturingSize standard 750 employeesFY2025 $344.8M
- 332992Small Arms Ammunition ManufacturingSize standard 1,300 employeesFY2025 $1.3B
- 332993Ammunition (except Small Arms) ManufacturingSize standard 1,500 employeesFY2025 $9.1B
- 332994Small Arms, Ordnance, and Ordnance Accessories ManufacturingSize standard 1,000 employeesFY2025 $1.8B
- 332999All Other Miscellaneous Fabricated Metal Product ManufacturingSize standard 750 employeesFY2025 $639.0M
- 333120Construction Machinery ManufacturingSize standard 1,250 employeesFY2025 $1.1B
- 333310Commercial and Service Industry Machinery ManufacturingSize standard 1,000 employeesFY2025 $1.1B
- 333415Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment ManufacturingSize standard 1,250 employeesFY2025 $357.8M
- 333613Mechanical Power Transmission Equipment ManufacturingSize standard 750 employeesFY2025 $367.1M
- 333618Other Engine Equipment ManufacturingSize standard 1,500 employeesFY2025 $755.1M
- 333998All Other Miscellaneous General Purpose Machinery ManufacturingSize standard 700 employeesFY2025 $290.4M
- 334111Electronic Computer ManufacturingSize standard 1,250 employeesFY2025 $3.2B
- 334118Computer Terminal and Other Computer Peripheral Equipment ManufacturingSize standard 1,000 employeesFY2025 $201.3M
- 334210Telephone Apparatus ManufacturingSize standard 1,250 employeesFY2025 $422.0M
- 334220Radio and Television Broadcasting and Wireless Communications Equipment ManufacturingSize standard 1,250 employeesFY2025 $4.5B
- 334290Other Communications Equipment ManufacturingSize standard 800 employeesFY2025 $2.7B
- 334310Audio and Video Equipment ManufacturingSize standard 750 employeesFY2025 $133.9M
- 334412Bare Printed Circuit Board ManufacturingSize standard 750 employeesFY2025 $839.2M
- 334419Other Electronic Component ManufacturingSize standard 750 employeesFY2025 $1.5B
- 334510Electromedical and Electrotherapeutic Apparatus ManufacturingSize standard 1,250 employeesFY2025 $752.2M
- 334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument ManufacturingSize standard 1,350 employeesFY2025 $18.6B
- 334515Instrument Manufacturing for Measuring and Testing Electricity and Electrical SignalsSize standard 750 employeesFY2025 $455.2M
- 334516Analytical Laboratory Instrument ManufacturingSize standard 1,000 employeesFY2025 $861.8M
- 334517Irradiation Apparatus ManufacturingSize standard 1,200 employeesFY2025 $855.6M
- 334519Other Measuring and Controlling Device ManufacturingSize standard 600 employeesFY2025 $735.5M
- 335311Power, Distribution, and Specialty Transformer ManufacturingSize standard 800 employeesFY2025 $310.9M
- 335999All Other Miscellaneous Electrical Equipment and Component ManufacturingSize standard 600 employeesFY2025 $628.1M
- 336110Automobile and Light Duty Motor Vehicle ManufacturingSize standard 1,500 employeesFY2025 $374.1M
- 336120Heavy Duty Truck ManufacturingSize standard 1,500 employeesFY2025 $397.5M
- 336211Motor Vehicle Body ManufacturingSize standard 1,000 employeesFY2025 $310.5M
- 336212Truck Trailer ManufacturingSize standard 1,000 employeesFY2025 $1.9B
- 336350Motor Vehicle Transmission and Power Train Parts ManufacturingSize standard 1,500 employeesFY2025 $371.2M
- 336411Aircraft ManufacturingSize standard 1,500 employeesFY2025 $61.2B
- 336412Aircraft Engine and Engine Parts ManufacturingSize standard 1,500 employeesFY2025 $12.0B
- 336413Other Aircraft Parts and Auxiliary Equipment ManufacturingSize standard 1,250 employeesFY2025 $19.8B
- 336414Guided Missile and Space Vehicle ManufacturingSize standard 1,300 employeesFY2025 $33.1B
- 336415Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts ManufacturingSize standard 1,250 employeesFY2025 $1.6B
- 336419Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment ManufacturingSize standard 1,050 employeesFY2025 $2.5B
- 336611Ship Building and RepairingSize standard 1,300 employeesFY2025 $37.2B
- 336612Boat BuildingSize standard 1,000 employeesFY2025 $338.0M
- 336992Military Armored Vehicle, Tank, and Tank Component ManufacturingSize standard 1,500 employeesFY2025 $6.5B
- 337214Office Furniture (except Wood) ManufacturingSize standard 1,100 employeesFY2025 $453.9M
- 339112Surgical and Medical Instrument ManufacturingSize standard 1,000 employeesFY2025 $1.6B
- 339113Surgical Appliance and Supplies ManufacturingSize standard 800 employeesFY2025 $1.2B
- 339999All Other Miscellaneous ManufacturingSize standard 550 employeesFY2025 $4.3B
42 Wholesale Trade
2 guides
51 Information
12 guides
- 511210Software PublishersRetired in 2022, now 513210FY2025 $6.0B
- 513210Software PublishersSize standard $47 millionFY2025 $1.5B
- 516210Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content ProvidersSize standard $47 millionFY2025 $15.0M
- 517111Wired Telecommunications CarriersSize standard 1,500 employeesFY2025 $648.7M
- 517112Wireless Telecommunications Carriers (except Satellite)Size standard 1,500 employeesFY2025 $302.1M
- 517410Satellite TelecommunicationsSize standard $44 millionFY2025 $1.3B
- 517810All Other TelecommunicationsSize standard $40 millionFY2025 $231.5M
- 517919Other Telecommunications ServicesRetired in 2022, now 517810FY2025 $873.2M
- 518210Computing Infrastructure Providers, Data Processing, Web Hosting, and Related ServicesSize standard $40 millionFY2025 $3.4B
- 519130Internet Publishing and Broadcasting and Web Search PortalsRetired in 2022, now 519290FY2025 $134.1M
- 519190All Other Information ServicesRetired in 2022, now 519290FY2025 $65.1M
- 519290Web Search Portals and All Other Information ServicesSize standard 1,000 employeesFY2025 $251.5M
54 Professional, Scientific, and Technical Services
26 guides
- 541110Offices of LawyersSize standard $15.5 millionFY2025 $327.4M
- 541199All Other Legal ServicesSize standard $20.5 millionFY2025 $440.0M
- 541211Offices of Certified Public AccountantsSize standard $26.5 millionFY2025 $1.0B
- 541219Other Accounting ServicesSize standard $25 millionFY2025 $814.6M
- 541310Architectural ServicesSize standard $12.5 millionFY2025 $739.8M
- 541330Engineering ServicesSize standard $25.5 millionFY2025 $52.3B
- 541370Surveying and Mapping (except Geophysical) ServicesSize standard $19 millionFY2025 $316.2M
- 541380Testing Laboratories and ServicesSize standard $19 millionFY2025 $567.6M
- 541511Custom Computer Programming ServicesSize standard $34 millionFY2025 $10.4B
- 541512Computer Systems Design ServicesSize standard $34 millionFY2025 $32.1B
- 541513Computer Facilities Management ServicesSize standard $37 millionFY2025 $3.4B
- 541519Other Computer Related ServicesSize standard $34 millionFY2025 $25.0B
- 541611Administrative Management and General Management Consulting ServicesSize standard $24.5 millionFY2025 $11.3B
- 541612Human Resources Consulting ServicesSize standard $29 millionFY2025 $795.1M
- 541613Marketing Consulting ServicesSize standard $19 millionFY2025 $383.4M
- 541614Process, Physical Distribution, and Logistics Consulting ServicesSize standard $20 millionFY2025 $2.0B
- 541618Other Management Consulting ServicesSize standard $19 millionFY2025 $843.3M
- 541620Environmental Consulting ServicesSize standard $19 millionFY2025 $1.2B
- 541690Other Scientific and Technical Consulting ServicesSize standard $19 millionFY2025 $2.2B
- 541713Research and Development in NanotechnologySize standard 1,000 employeesFY2025 $317.5M
- 541714Research and Development in Biotechnology (except Nanobiotechnology)Size standard 1,000 employeesFY2025 $1.5B
- 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)Size standard 1,000 employeesFY2025 $48.5B
- 541720Research and Development in the Social Sciences and HumanitiesSize standard $28 millionFY2025 $732.3M
- 541810Advertising AgenciesSize standard $25.5 millionFY2025 $1.2B
- 541930Translation and Interpretation ServicesSize standard $22.5 millionFY2025 $372.5M
- 541990All Other Professional, Scientific, and Technical ServicesSize standard $19.5 millionFY2025 $12.0B
56 Administrative and Support and Waste Management and Remediation Services
17 guides
- 561110Office Administrative ServicesSize standard $12.5 millionFY2025 $668.1M
- 561210Facilities Support ServicesSize standard $47 millionFY2025 $38.3B
- 561320Temporary Help ServicesSize standard $34 millionFY2025 $883.0M
- 561422Telemarketing Bureaus and Other Contact CentersSize standard $25.5 millionFY2025 $1.1B
- 561499All Other Business Support ServicesSize standard $21.5 millionFY2025 $548.7M
- 561599All Other Travel Arrangement and Reservation ServicesSize standard $32.5 millionFY2025 $798.2M
- 561611Investigation and Personal Background Check ServicesSize standard $25 millionFY2025 $852.4M
- 561612Security Guards and Patrol ServicesSize standard $29 millionFY2025 $6.2B
- 561621Security Systems Services (except Locksmiths)Size standard $25 millionFY2025 $783.9M
- 561720Janitorial ServicesSize standard $22 millionFY2025 $2.1B
- 561730Landscaping ServicesSize standard $9.5 millionFY2025 $669.2M
- 561990All Other Support ServicesSize standard $16.5 millionFY2025 $1.8B
- 562111Solid Waste CollectionSize standard $47 millionFY2025 $303.7M
- 562119Other Waste CollectionSize standard $47 millionFY2025 $4.0B
- 562211Hazardous Waste Treatment and DisposalSize standard $47 millionFY2025 $2.4B
- 562910Remediation ServicesSize standard $25 millionFY2025 $7.0B
- 562998All Other Miscellaneous Waste Management ServicesSize standard $16.5 millionFY2025 $335.4M
61 Educational Services
6 guides
- 611310Colleges, Universities, and Professional SchoolsSize standard $34.5 millionFY2025 $835.1M
- 611420Computer TrainingSize standard $16 millionFY2025 $201.1M
- 611430Professional and Management Development TrainingSize standard $15 millionFY2025 $1.0B
- 611512Flight TrainingSize standard $34 millionFY2025 $986.2M
- 611519Other Technical and Trade SchoolsSize standard $21 millionFY2025 $1.2B
- 611710Educational Support ServicesSize standard $24 millionFY2025 $404.3M
62 Health Care and Social Assistance
3 guides
81 Other Services (except Public Administration)
3 guides
- 811111General Automotive RepairSize standard $9 millionFY2025 $321.5M
- 811210Electronic and Precision Equipment Repair and MaintenanceSize standard $34 millionFY2025 $1.6B
- 811310Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and MaintenanceSize standard $12.5 millionFY2025 $765.5M
Federal spending by NAICS code, FY2025
The 20 biggest of the 120 codes in our FY2025 report.
How NAICS codes work
NAICS is the Census Bureau's industry classification. Federal buyers use it twice: to find vendors, and to set the size standard on each solicitation.
In SAM.gov you list every code you can perform and mark one as primary. A code you leave off is a search you never appear in.
Size standards vary by code and are not all measured the same way. Custom Computer Programming Services (541511) is $34 million, Engineering Services (541330) is $25.5 million, and Aircraft Manufacturing (336411) is 1,500 employees. Receipts standards are averaged over five fiscal years, employee standards over the last 24 months.
Every contract also carries a product service code for what was bought, and one PSC's awards span many NAICS codes. Searching by PSC finds work filed under codes you never registered.
If you have never sold to the government, start with how to sell to the government.
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NAICS code lookupDescribe your work in plain English and find the industry codes agencies file it under, with SBA size standards.
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where federal contract dollars went in FY2025The federal government spent $793B on contracts in FY2025. See where it went across 120 industry codes, by sector and...
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NAICS CodeNorth American Industry Classification System code used to classify business type for federal contracting size...
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