FedReady

NAICS codes with the most open federal contracts

Every federal contract opportunity carries one NAICS code, and that code's SBA size standard decides who counts as small. These are the codes with the most open notices on SAM.gov right now. Each page shows the size standard, open contracts, how much agencies spend and who buys.

Looking for a different code? Search all of them by keyword or company with the free NAICS code lookup.

CodeIndustrySBA size standardOpen contracts
336413Other Aircraft Parts and Auxiliary Equipment Manufacturing1,250 employees568
541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)1,000 employees298
236220Commercial and Institutional Building Construction$45 million receipts270
336412Aircraft Engine and Engine Parts Manufacturing1,500 employees259
333998All Other Miscellaneous General Purpose Machinery Manufacturing700 employees217
237990Other Heavy and Civil Engineering Construction$45 million receipts201
332911Industrial Valve Manufacturing750 employees195
334412Bare Printed Circuit Board Manufacturing750 employees180
541330Engineering Services$25.5 million receipts163
335312Motor and Generator Manufacturing1,250 employees159
332510Hardware Manufacturing750 employees150
332919Other Metal Valve and Pipe Fitting Manufacturing750 employees135
334419Other Electronic Component Manufacturing750 employees123
333996Fluid Power Pump and Motor Manufacturing1,250 employees122
334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing1,350 employees110
332722Bolt, Nut, Screw, Rivet, and Washer Manufacturing600 employees108
333613Mechanical Power Transmission Equipment Manufacturing750 employees106
334417Electronic Connector Manufacturing1,000 employees106
335931Current-Carrying Wiring Device Manufacturing600 employees98
333310Commercial and Service Industry Machinery Manufacturing1,000 employees95
339991Gasket, Packing, and Sealing Device Manufacturing600 employees93
336611Ship Building and Repairing1,300 employees92
531120Lessors of Nonresidential Buildings (except Miniwarehouses)$34 million receipts92
334220Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing1,250 employees91
335311Power, Distribution, and Specialty Transformer Manufacturing800 employees78
333914Measuring, Dispensing, and Other Pumping Equipment Manufacturing750 employees77
334290Other Communications Equipment Manufacturing800 employees77
333912Air and Gas Compressor Manufacturing1,000 employees74
336390Other Motor Vehicle Parts Manufacturing1,000 employees74
334416Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing550 employees71

New to NAICS codes? Read how to choose NAICS codes for government contracts.