Open federal bids by NAICS code

The 40 NAICS (North American Industry Classification System) codes with the most open SAM.gov (System for Award Management, the government's contracting website) solicitations, sources-sought and presolicitation notices in SAM.gov data through Oct 22, 2026, plus the codes we write industry reports for.

Industry reports

Our analysis of open notices, by set-aside, agency, state and deadline: NAICS 236220 (building construction) · NAICS 541330 (engineering services) · NAICS 238220 (HVAC and plumbing) · NAICS 561730 (landscaping and grounds) · NAICS 561210 (facilities support) · NAICS 561720 (janitorial)

CodeIndustryOpen solicitations
NAICS 336413Other Aircraft Parts and Auxiliary Equipment Manufacturing609
NAICS 332911Industrial Valve Manufacturing256
NAICS 334419Other Electronic Component Manufacturing226
NAICS 332919Other Metal Valve and Pipe Fitting Manufacturing209
NAICS 236220Commercial and Institutional Building Construction190
NAICS 332510Hardware Manufacturing179
NAICS 334412Bare Printed Circuit Board Manufacturing156
NAICS 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)150
NAICS 237990Other Heavy and Civil Engineering Construction147
NAICS 339991Gasket, Packing, and Sealing Device Manufacturing146
NAICS 334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing138
NAICS 332722Bolt, Nut, Screw, Rivet, and Washer Manufacturing133
NAICS 336412Aircraft Engine and Engine Parts Manufacturing128
NAICS 333998All Other Miscellaneous General Purpose Machinery Manufacturing124
NAICS 333613Mechanical Power Transmission Equipment Manufacturing115
NAICS 335931Current-Carrying Wiring Device Manufacturing104
NAICS 541330Engineering Services103
NAICS 336611Ship Building and Repairing97
NAICS 335311Power, Distribution, and Specialty Transformer Manufacturing95
NAICS 334220Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing93
NAICS 335312Motor and Generator Manufacturing92
NAICS 332991Ball and Roller Bearing Manufacturing90
NAICS 333618Other Engine Equipment Manufacturing90
NAICS 334417Electronic Connector Manufacturing86
NAICS 335999All Other Miscellaneous Electrical Equipment and Component Manufacturing83
NAICS 332994Small Arms, Ordnance, and Ordnance Accessories Manufacturing82
NAICS 332999All Other Miscellaneous Fabricated Metal Product Manufacturing78
NAICS 336390Other Motor Vehicle Parts Manufacturing73
NAICS 531120Lessors of Nonresidential Buildings (except Miniwarehouses)72
NAICS 333310Commercial and Service Industry Machinery Manufacturing69
NAICS 334290Other Communications Equipment Manufacturing68
NAICS 335313Switchgear and Switchboard Apparatus Manufacturing67
NAICS 332996Fabricated Pipe and Pipe Fitting Manufacturing64
NAICS 333996Fluid Power Pump and Motor Manufacturing61
NAICS 336411Aircraft Manufacturing61
NAICS 811210Electronic and Precision Equipment Repair and Maintenance60
NAICS 333914Measuring, Dispensing, and Other Pumping Equipment Manufacturing58
NAICS 334519Other Measuring and Controlling Device Manufacturing58
NAICS 335314Relay and Industrial Control Manufacturing56
NAICS 811310Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance51
NAICS 238220Plumbing, Heating, and Air-Conditioning Contractors47
NAICS 561730Landscaping Services20
NAICS 561210Facilities Support Services36
NAICS 561720Janitorial Services20