Why NAICS codes matter for federal contracts
Every federal contract is tagged with one NAICS code that names the industry the work belongs to. That code does three things at once: it determines which businesses are eligible to bid, it sets the SBA size standard that decides whether you compete as a small business or against full-size firms, and it controls which set-asides (8(a), HUBZone, SDVOSB, WOSB) apply. Choose the wrong code on your SAM.gov profile and you'll miss opportunities you qualify for; the right code is how federal buyers find you in the first place.
Find your NAICS code
Top 10 NAICS codes by federal contract activity
Live counts from SAM.gov via Bureauify's contract index. Refreshed at build time.
#1423450Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers800,941 contracts#2332212HAND AND EDGE TOOL MANUFACTURING417,745 contracts#3444130Hardware Stores369,088 contracts#4453210Office Supplies and Stationery Stores345,116 contracts#5339112Surgical and Medical Instrument Manufacturing302,411 contracts#6311991Perishable Prepared Food Manufacturing298,620 contracts#7336413Other Aircraft Parts and Auxiliary Equipment Manufacturing277,026 contracts#8541519Other Computer Related Services270,404 contracts#9339113Surgical Appliance and Supplies Manufacturing242,240 contracts#10424210Drugs and Druggists' Sundries Merchant Wholesalers240,478 contracts
Browse contracts by other dimensions
NAICS is one of several ways federal contracts are organized. These dimensions intersect — a single contract has a NAICS code, a set-aside, an issuing agency, and a place of performance.
NAICS taxonomy sourced from the U.S. Census Bureau's North American Industry Classification System (2022 revision). Contract counts derived from SAM.gov + USAspending feeds; see our data sources.
NAICS directory and contract counts last refreshed .
Browse all NAICS codes by sector
25 sectors organize the full 1,051-code taxonomy.
11 — Agriculture(71 codes)
115310Support Activities for Forestry43,27111AGRICULTURE, FORESTRY, FISHING AND HUNTING11142NURSERY AND FLORICULTURE PRODUCTION11251AQUACULTURE11321FOREST NURSERIES AND GATHERING OF FOREST PRODUCTS11511SUPPORT ACTIVITIES FOR CROP PRODUCTION11521SUPPORT ACTIVITIES FOR ANIMAL PRODUCTION11531SUPPORT ACTIVITIES FOR FORESTRY111110Soybean Farming111120Oilseed (except Soybean) Farming111130Dry Pea and Bean Farming111140Wheat Farming
+ 59 more codes in this sector — View full sector page
21 — Mining & Extraction(37 codes)
211111CRUDE PETROLEUM AND NATURAL GAS EXTRACTION211112NATURAL GAS LIQUID EXTRACTION211120Crude Petroleum Extraction211130Natural Gas Extraction212111Bituminous Coal and Lignite Surface Mining212112Bituminous Coal Underground Mining212113Anthracite Mining212114SURFACE COAL MINING212210Iron Ore Mining212220GOLD ORE AND SILVER ORE MINING212221Gold Ore Mining212222Silver Ore Mining
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22 — Utilities(21 codes)
221UTILITIES2211ELECTRIC POWER GENERATION, TRANSMISSION AND DISTRIBUTION22111ELECTRIC POWER GENERATION22121NATURAL GAS DISTRIBUTION22131WATER SUPPLY AND IRRIGATION SYSTEMS22132SEWAGE TREATMENT FACILITIES221111Hydroelectric Power Generation221112Fossil Fuel Electric Power Generation221113Nuclear Electric Power Generation221114Solar Electric Power Generation221115Wind Electric Power Generation221116Geothermal Electric Power Generation
+ 9 more codes in this sector — View full sector page
23 — Construction(106 codes)
236220Commercial and Institutional Building Construction166,337237990Other Heavy and Civil Engineering Construction43,222238220Plumbing, Heating, and Air-Conditioning Contractors41,778238210Electrical Contractors and Other Wiring Installation Contractors36,22223CONSTRUCTION233BUILDING, DEVELOPING, AND GENERAL CONTRACTING238SPECIALTY TRADE CONTRACTORS2332RESIDENTIAL BUILDING CONSTRUCTION2333NONRESIDENTIAL BUILDING CONSTRUCTION2349OTHER HEAVY CONSTRUCTION2356ROOFING, SIDING, AND SHEET METAL CONTRACTORS2358WATER WELL DRILLING CONTRACTORS
+ 94 more codes in this sector — View full sector page
31 — Manufacturing(137 codes)
311991Perishable Prepared Food Manufacturing298,620311812Commercial Bakeries224,603311999All Other Miscellaneous Food Manufacturing44,61831181BREAD AND BAKERY PRODUCT MANUFACTURING311111Dog and Cat Food Manufacturing311119Other Animal Food Manufacturing311211Flour Milling311212Rice Milling311213Malt Manufacturing311221Wet Corn Milling311222SOYBEAN PROCESSING311223OTHER OILSEED PROCESSING
+ 125 more codes in this sector — View full sector page
32 — Manufacturing(143 codes)
324110Petroleum Refineries198,842325411Medicinal and Botanical Manufacturing154,555324191Petroleum Lubricating Oil and Grease Manufacturing125,044325520Adhesive Manufacturing121,479325510Paint and Coating Manufacturing97,673325412Pharmaceutical Preparation Manufacturing76,023325611Soap and Other Detergent Manufacturing41,640322230Stationery Product Manufacturing40,448322121Paper (except Newsprint) Mills39,0693272GLASS AND GLASS PRODUCT MANUFACTURING3273CEMENT AND CONCRETE PRODUCT MANUFACTURING32532PESTICIDE AND OTHER AGRICULTURAL CHEMICAL MANUFACTURING
+ 131 more codes in this sector — View full sector page
33 — Manufacturing(299 codes)
332212HAND AND EDGE TOOL MANUFACTURING417,745339112Surgical and Medical Instrument Manufacturing302,411336413Other Aircraft Parts and Auxiliary Equipment Manufacturing277,026339113Surgical Appliance and Supplies Manufacturing242,240337214Office Furniture (except Wood) Manufacturing204,485334111Electronic Computer Manufacturing173,751332510Hardware Manufacturing172,170332722Bolt, Nut, Screw, Rivet, and Washer Manufacturing156,707339999All Other Miscellaneous Manufacturing113,743333319OTHER COMMERCIAL AND SERVICE INDUSTRY MACHINERY MANUFACTURING102,849334516Analytical Laboratory Instrument Manufacturing102,222336111Automobile Manufacturing100,248
+ 287 more codes in this sector — View full sector page
42 — Wholesale Trade(163 codes)
423450Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers800,941424210Drugs and Druggists' Sundries Merchant Wholesalers240,478424480Fresh Fruit and Vegetable Merchant Wholesalers83,230423710Hardware Merchant Wholesalers56,328423430Computer and Computer Peripheral Equipment and Software Merchant Wholesalers49,943423610Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers47,292423850Service Establishment Equipment and Supplies Merchant Wholesalers41,1044212FURNITURE AND HOME FURNISHING WHOLESALERS4238MACHINERY, EQUIPMENT, AND SUPPLIES MERCHANT WHOLESALERS42131LUMBER, PLYWOOD, MILLWORK, AND WOOD PANEL WHOLESALERS42139OTHER CONSTRUCTION MATERIAL WHOLESALERS42143COMPUTER AND COMPUTER PERIPHERAL EQUIPMENT AND SOFTWARE WHOLESALERS
+ 151 more codes in this sector — View full sector page
44 — Retail Trade(72 codes)
444130Hardware Stores369,088443120COMPUTER AND SOFTWARE STORES126,966444110Home Centers67,0144441BUILDING MATERIAL AND SUPPLIES DEALERS44121RECREATIONAL VEHICLE DEALERS44122MOTORCYCLE, BOAT, AND OTHER MOTOR VEHICLE DEALERS44131AUTOMOTIVE PARTS AND ACCESSORIES STORES44312COMPUTER AND SOFTWARE STORES44313CAMERA AND PHOTOGRAPHIC SUPPLIES STORES44711GASOLINE STATIONS WITH CONVENIENCE STORES441110New Car Dealers441120Used Car Dealers
+ 60 more codes in this sector — View full sector page
45 — Retail Trade(62 codes)
453210Office Supplies and Stationery Stores345,11645321OFFICE SUPPLIES AND STATIONERY STORES45393MANUFACTURED (MOBILE) HOME DEALERS45439OTHER DIRECT SELLING ESTABLISHMENTS451110Sporting Goods Stores451120Hobby, Toy, and Game Stores451130Sewing, Needlework, and Piece Goods Stores451140Musical Instrument and Supplies Stores451211Book Stores451212News Dealers and Newsstands451220PRERECORDED TAPE, COMPACT DISC, AND RECORD STORES452110DEPARTMENT STORES
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48 — Transportation(55 codes)
488190Other Support Activities for Air Transportation36,975484TRUCK TRANSPORTATION48211RAIL TRANSPORTATION48421USED HOUSEHOLD AND OFFICE GOODS MOVING48423SPECIALIZED FREIGHT (EXCEPT USED GOODS) TRUCKING, LONG-DISTANCE48849OTHER SUPPORT ACTIVITIES FOR ROAD TRANSPORTATION481111Scheduled Passenger Air Transportation481112Scheduled Freight Air Transportation481211Nonscheduled Chartered Passenger Air Transportation481212Nonscheduled Chartered Freight Air Transportation481219Other Nonscheduled Air Transportation482111Line-Haul Railroads
+ 43 more codes in this sector — View full sector page
49 — Warehousing(11 codes)
493190Other Warehousing and Storage37,6874911POSTAL SERVICE4921COURIERS AND EXPRESS DELIVERY SERVICES49211COURIERS AND EXPRESS DELIVERY SERVICES49311GENERAL WAREHOUSING AND STORAGE491110Postal Service492110Couriers and Express Delivery Services492210Local Messengers and Local Delivery493110General Warehousing and Storage493120Refrigerated Warehousing and Storage493130Farm Product Warehousing and Storage
51 — Information(93 codes)
517110Wired Telecommunications Carriers110,005511210Software Publishers75,227514INFORMATION SERVICES AND DATA PROCESSING SERVICES517TELECOMMUNICATIONS519OTHER INFORMATION SERVICES5141INFORMATION SERVICES5142DATA PROCESSING SERVICES5171WIRED TELECOMMUNICATIONS CARRIERS5182DATA PROCESSING, HOSTING, AND RELATED SERVICES51113BOOK PUBLISHERS51121SOFTWARE PUBLISHERS51211MOTION PICTURE AND VIDEO PRODUCTION
+ 81 more codes in this sector — View full sector page
52 — Finance & Insurance(46 codes)
521110MONETARY AUTHORITIES - CENTRAL BANK522110Commercial Banking522120Savings Institutions522130Credit Unions522190Other Depository Credit Intermediation522210Credit Card Issuing522220Sales Financing522291Consumer Lending522292Real Estate Credit522293International Trade Financing522294Secondary Market Financing522298All Other Nondepository Credit Intermediation
+ 34 more codes in this sector — View full sector page
53 — Real Estate(38 codes)
531120Lessors of Nonresidential Buildings (except Miniwarehouses)189,247532420Office Machinery and Equipment Rental and Leasing52,684532RENTAL AND LEASING SERVICES53111LESSORS OF RESIDENTIAL BUILDINGS AND DWELLINGS53112LESSORS OF NONRESIDENTIAL BUILDINGS (EXCEPT MINIWAREHOUSES)53119LESSORS OF OTHER REAL ESTATE PROPERTY53121OFFICES OF REAL ESTATE AGENTS AND BROKERS53132OFFICES OF REAL ESTATE APPRAISERS53139OTHER ACTIVITIES RELATED TO REAL ESTATE53241CONSTRUCTION, TRANSPORTATION, MINING, AND FORESTRY MACHINERY AND EQUIPMENT RENTAL AND LEASING53249OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING531110Lessors of Residential Buildings and Dwellings
+ 26 more codes in this sector — View full sector page
54 — Professional Services(81 codes)
541519Other Computer Related Services270,404541330Engineering Services211,993541611Administrative Management and General Management Consulting Services200,536541512Computer Systems Design Services113,498541712Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)105,704541990All Other Professional, Scientific, and Technical Services97,189541511Custom Computer Programming Services93,357541710Research and Development in the Physical, Engineering, and Life Sciences81,474541930Translation and Interpretation Services73,822541620Environmental Consulting Services55,452541310Architectural Services42,321541690Other Scientific and Technical Consulting Services41,387
+ 69 more codes in this sector — View full sector page
55 — Management(4 codes)
56 — Admin & Support Services(60 codes)
561210Facilities Support Services105,005561320Temporary Help Services61,571561720Janitorial Services60,584561612Security Guards and Patrol Services56,696561621Security Systems Services (except Locksmiths)36,178562910Remediation Services33,032561730Landscaping Services32,246561ADMINISTRATIVE AND SUPPORT SERVICES5612FACILITIES SUPPORT SERVICES5614BUSINESS SUPPORT SERVICES56111OFFICE ADMINISTRATIVE SERVICES56121FACILITIES SUPPORT SERVICES
+ 48 more codes in this sector — View full sector page
61 — Education(23 codes)
611430Professional and Management Development Training46,72961111ELEMENTARY AND SECONDARY SCHOOLS61131COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS61142COMPUTER TRAINING61143PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING61169ALL OTHER SCHOOLS AND INSTRUCTION61171EDUCATIONAL SUPPORT SERVICES611110Elementary and Secondary Schools611210Junior Colleges611310Colleges, Universities, and Professional Schools611410Business and Secretarial Schools611420Computer Training
+ 11 more codes in this sector — View full sector page
62 — Healthcare(50 codes)
622110General Medical and Surgical Hospitals61,459621111Offices of Physicians (except Mental Health Specialists)49,38962111OFFICES OF PHYSICIANS62121OFFICES OF DENTISTS62132OFFICES OF OPTOMETRISTS62133OFFICES OF MENTAL HEALTH PRACTITIONERS (EXCEPT PHYSICIANS)62134OFFICES OF PHYSICAL, OCCUPATIONAL AND SPEECH THERAPISTS, AND AUDIOLOGISTS62142OUTPATIENT MENTAL HEALTH AND SUBSTANCE ABUSE CENTERS62149OTHER OUTPATIENT CARE CENTERS62151MEDICAL AND DIAGNOSTIC LABORATORIES62199ALL OTHER AMBULATORY HEALTH CARE SERVICES62211GENERAL MEDICAL AND SURGICAL HOSPITALS
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71 — Arts & Recreation(29 codes)
71113MUSICAL GROUPS AND ARTISTS71151INDEPENDENT ARTISTS, WRITERS, AND PERFORMERS71212HISTORICAL SITES71399ALL OTHER AMUSEMENT AND RECREATION INDUSTRIES711110Theater Companies and Dinner Theaters711120Dance Companies711130Musical Groups and Artists711190Other Performing Arts Companies711211Sports Teams and Clubs711212Racetracks711219Other Spectator Sports711310Promoters of Performing Arts, Sports, and Similar Events with Facilities
+ 17 more codes in this sector — View full sector page
72 — Accommodation & Food(22 codes)
721110Hotels (except Casino Hotels) and Motels63,22672111HOTELS (EXCEPT CASINO HOTELS) AND MOTELS72131ROOMING AND BOARDING HOUSES72231FOOD SERVICE CONTRACTORS721120Casino Hotels721191Bed-and-Breakfast Inns721199All Other Traveler Accommodation721211RV (Recreational Vehicle) Parks and Campgrounds721214Recreational and Vacation Camps (except Campgrounds)721310Rooming and Boarding Houses, Dormitories, and Workers' Camps722110FULL-SERVICE RESTAURANTS722211LIMITED-SERVICE RESTAURANTS
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81 — Other Services(57 codes)
811219Other Electronic and Precision Equipment Repair and Maintenance66,853811310Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance47,781811212Computer and Office Machine Repair and Maintenance33,1658111AUTOMOTIVE REPAIR AND MAINTENANCE8123DRYCLEANING AND LAUNDRY SERVICES81131COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE81232DRYCLEANING AND LAUNDRY SERVICES (EXCEPT COIN-OPERATED)81299ALL OTHER PERSONAL SERVICES81392PROFESSIONAL ORGANIZATIONS811111General Automotive Repair811112Automotive Exhaust System Repair811113Automotive Transmission Repair
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92 — Public Administration(37 codes)
9261ADMINISTRATION OF ECONOMIC PROGRAMS92213LEGAL COUNSEL AND PROSECUTION92216FIRE PROTECTION92219OTHER JUSTICE, PUBLIC ORDER, AND SAFETY ACTIVITIES92311ADMINISTRATION OF EDUCATION PROGRAMS92411ADMINISTRATION OF AIR AND WATER RESOURCE AND SOLID WASTE MANAGEMENT PROGRAMS92412ADMINISTRATION OF CONSERVATION PROGRAMS92511ADMINISTRATION OF HOUSING PROGRAMS921110Executive Offices921120Legislative Bodies921130Public Finance Activities921140Executive and Legislative Offices, Combined
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