NAICS Codes by Business Activity: M (Macadamia to Meteorological)

Activities 1–577 of 1,153

Business activity NAICS code Size standard
Macadamia farming111335 Tree Nut Farming$3.8 million in average annual receipts
Macaroni merchant wholesalers424490 Other Grocery and Related Products Merchant Wholesalers250 employees
Macaroni, dry, manufacturing311824 Dry Pasta, Dough, and Flour Mixes Manufacturing from Purchased Flour850 employees
Macaroni, fresh, manufacturing311991 Perishable Prepared Food Manufacturing700 employees
Macaroni, frozen, manufacturing311412 Frozen Specialty Food Manufacturing1,250 employees
Machetes manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Machine bases, metal, manufacturing332999 All Other Miscellaneous Fabricated Metal Product Manufacturing750 employees
Machine guards, sheet metal (except stampings), manufacturing332322 Sheet Metal Work Manufacturing500 employees
Machine gun belts (i.e., more than 30 mm., more than 1.18 inch) manufacturing332995 Other Ordnance and Accessories ManufacturingRetired code (NAICS 2007)—
Machine gun belts manufacturing332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing1,000 employees
Machine guns (i.e., more than 30 mm., more than 1.18 inch) manufacturing332995 Other Ordnance and Accessories ManufacturingRetired code (NAICS 2007)—
Machine guns manufacturing332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing1,000 employees
Machine keys, metal, manufacturing332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing600 employees
Machine knives (except metal cutting) manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Machine knives, metal cutting, manufacturing333515 Cutting Tool and Machine Tool Accessory Manufacturing500 employees
Machine rigging238290 Other Building Equipment Contractors$22 million in average annual receipts
Machine shops332710 Machine Shops500 employees
Machine tool attachments and accessories manufacturing333515 Cutting Tool and Machine Tool Accessory Manufacturing500 employees
Machine tool transformers manufacturing335311 Power, Distribution, and Specialty Transformer Manufacturing800 employees
Machine tools and accessories merchant wholesalers423830 Industrial Machinery and Equipment Merchant Wholesalers100 employees
Machine tools repair and maintenance services811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance$12.5 million in average annual receipts
Machine tools, metal cutting, manufacturing333517 Machine Tool Manufacturing500 employees
Machine tools, metal forming, manufacturing333517 Machine Tool Manufacturing500 employees
Machinery and equipment, large-scale, installation238290 Other Building Equipment Contractors$22 million in average annual receipts
Machinery finance leasing522220 Sales Financing$47 million in average annual receipts
Machinery, construction (except cranes), rental with operator238910 Site Preparation Contractors$19 million in average annual receipts
Machines, office, merchant wholesalers423420 Office Equipment Merchant Wholesalers200 employees
Machinists' precision measuring tools (except optical) manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Machinists' precision measuring tools merchant wholesalers423830 Industrial Machinery and Equipment Merchant Wholesalers100 employees
Machmeters manufacturing334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing1,350 employees
Mackerel fishing114111 Finfish Fishing$25 million in average annual receipts
Mackinaws cut and sew apparel contractors315210 Cut and Sew Apparel Contractors750 employees
Mackinaws, infants', cut and sewn from purchased fabric (except apparel contractors)315291 Infants' Cut and Sew Apparel ManufacturingRetired code (NAICS 2007)—
Mackinaws, men's and boys', cut and sew apparel contractors315211 Men's and Boys' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Mackinaws, men's and boys', cut and sewn from purchased fabric (except apparel contractors)315220 Men's and Boys' Cut and Sew Apparel Manufacturing750 employees
Mackinaws, women's, girls', and infants', cut and sew apparel contractors315212 Women's, Girls', and Infants' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Mackinaws, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors)315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing750 employees
Mackinaws, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors)315239 Women's and Girls' Cut and Sew Other Outerwear ManufacturingRetired code (NAICS 2007)—
Magazine advertising representatives (i.e., independent of media owners)541840 Media Representatives$21 million in average annual receipts
Magazine publishers (except exclusive Internet publishing)511120 Periodical Publishers1,000 employees
Magazine publishers and printing combined511120 Periodical Publishers1,000 employees
Magazine publishers, exclusively on Internet519130 Internet Publishing and Broadcasting and Web Search Portals1,000 employees
Magazine racks, wood, manufacturing337122 Nonupholstered Wood Household Furniture Manufacturing750 employees
Magazine stands (i.e., permanent)451212 News Dealers and Newsstands$20 million in average annual receipts
Magazines and periodicals commercial printing (except screen) without publishing323111 Commercial Printing (except Screen and Books)650 employees
Magazines and periodicals flexographic printing without publishing323112 Commercial Flexographic PrintingRetired code (NAICS 2007)—
Magazines and periodicals lithographic (offset) printing without publishing323110 Commercial Lithographic PrintingRetired code (NAICS 2007)—
Magazines and periodicals printing (except flexographic, gravure, lithographic, quick, screen) without publishing323119 Other Commercial PrintingRetired code (NAICS 2007)—
Magazines and periodicals screen printing without publishing323113 Commercial Screen Printing500 employees
Magazines merchant wholesalers424920 Book, Periodical, and Newspaper Merchant Wholesalers200 employees
Magic shows711190 Other Performing Arts Companies$34 million in average annual receipts
Magic supply stores451120 Hobby, Toy, and Game Stores$31 million in average annual receipts
Magicians, independent711510 Independent Artists, Writers, and Performers$9 million in average annual receipts
Magnesia refractory cement manufacturing327120 Clay Building Material and Refractories Manufacturing750 employees
Magnesia, medicinal, uncompounded, manufacturing325411 Medicinal and Botanical Manufacturing1,000 employees
Magnesite mining and/or beneficiating212325 Clay and Ceramic and Refractory Minerals Mining500 employees
Magnesite, crude (e.g., calcined, dead-burned, ground), manufacturing327992 Ground or Treated Mineral and Earth Manufacturing600 employees
Magnesium and magnesium alloy bar, rod, shape, sheet, strip, and tubing made from purchased metals or scrap331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding900 employees
Magnesium carbonate manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Magnesium castings (except die-castings), unfinished, manufacturing331529 Other Nonferrous Metal Foundries (except Die-Casting)500 employees
Magnesium chloride manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Magnesium compounds, not specified elsewhere by process, manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Magnesium die-castings, unfinished, manufacturing331523 Nonferrous Metal Die-Casting Foundries700 employees
Magnesium foil made by rolling purchased metals or scrap331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding900 employees
Magnesium foil not made in rolling mills332999 All Other Miscellaneous Fabricated Metal Product Manufacturing750 employees
Magnesium recovering from scrap and/or alloying purchased metals331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)850 employees
Magnesium refining, primary331410 Nonferrous Metal (except Aluminum) Smelting and Refining1,000 employees
Magnesium rolling, drawing, or extruding purchased metals or scrap331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding900 employees
Magnet wire, insulated, made from purchased copper in wire drawing plants331420 Copper Rolling, Drawing, Extruding, and Alloying1,050 employees
Magnet wire, insulated, made in aluminum wire drawing plants331318 Other Aluminum Rolling, Drawing, and Extruding750 employees
Magnet wire, nonferrous metals (except aluminum, copper), made from purchased nonferrous metals (except aluminum, copper) in wire drawing plants331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding900 employees
Magnetic and optical media, blank, manufacturing334613 Blank Magnetic and Optical Recording Media Manufacturing1,000 employees
Magnetic counters manufacturing334514 Totalizing Fluid Meter and Counting Device Manufacturing850 employees
Magnetic flow meters, industrial process-type, manufacturing334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables750 employees
Magnetic forming machines, metalworking, manufacturing333517 Machine Tool Manufacturing500 employees
Magnetic geophysical surveying services541360 Geophysical Surveying and Mapping Services$28.5 million in average annual receipts
Magnetic ink recognition devices, computer peripheral equipment, manufacturing334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing1,000 employees
Magnetic recording media for tapes, cassettes, and disks, manufacturing334613 Blank Magnetic and Optical Recording Media Manufacturing1,000 employees
Magnetic resonance imaging (MRI) centers621512 Diagnostic Imaging Centers$19 million in average annual receipts
Magnetic resonance imaging (MRI) medical diagnostic equipment manufacturing334510 Electromedical and Electrotherapeutic Apparatus Manufacturing1,250 employees
Magnetic resonance imaging (MRI) type apparatus (except medical diagnostic) manufacturing334516 Analytical Laboratory Instrument Manufacturing1,000 employees
Magnetic tapes, cassettes and disks, blank, manufacturing334613 Blank Magnetic and Optical Recording Media Manufacturing1,000 employees
Magnetic tapes, cassettes, and disks, blank, merchant wholesalers423690 Other Electronic Parts and Equipment Merchant Wholesalers250 employees
Magnetic/optical combination storage units for computers manufacturing334112 Computer Storage Device Manufacturing1,250 employees
Magnetometers manufacturing334519 Other Measuring and Controlling Device Manufacturing600 employees
Magnetron tubes manufacturing334419 Other Electronic Component Manufacturing750 employees
Magnets, permanent, ceramic or ferrite, manufacturing327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing1,000 employees
Magnets, permanent, metallic, manufacturing332999 All Other Miscellaneous Fabricated Metal Product Manufacturing750 employees
Magnifiers, corrective vision-type, manufacturing339115 Ophthalmic Goods Manufacturing1,000 employees
Magnifying glasses (except corrective vision-type) manufacturing333314 Optical Instrument and Lens Manufacturing500 employees
Magnifying instruments, optical, manufacturing333314 Optical Instrument and Lens Manufacturing500 employees
Mahimahi fishing114111 Finfish Fishing$25 million in average annual receipts
Maid registries561311 Employment Placement Agencies$34 million in average annual receipts
Maid services (i.e., cleaning services)561720 Janitorial Services$22 million in average annual receipts
Mail box units, outdoor, multiple box-type, erection238990 All Other Specialty Trade Contractors$19 million in average annual receipts
Mail carrier cases and tables, wood, manufacturing337215 Showcase, Partition, Shelving, and Locker Manufacturing500 employees
Mail chutes, sheet metal (except stampings), manufacturing332322 Sheet Metal Work Manufacturing500 employees
Mail consolidation services561499 All Other Business Support Services$21.5 million in average annual receipts
Mail handling machinery, post office-type, manufacturing333318 Other Commercial and Service Industry Machinery Manufacturing1,000 employees
Mail presorting services561499 All Other Business Support Services$21.5 million in average annual receipts
Mail-order houses454110 Electronic Shopping and Mail-Order Houses$41.5 million in average annual receipts
Mailbox rental centers, private561431 Private Mail Centers$19 million in average annual receipts
Mailbox rental services combined with one or more other office support services, private561431 Private Mail Centers$19 million in average annual receipts
Mailboxes, light gauge metal, manufacturing332439 Other Metal Container Manufacturing600 employees
Mailing cases and tubes, paper fiber (i.e., all-fiber, nonfiber ends of any material), made from purchased paperboard322219 Other Paperboard Container Manufacturing1,000 employees
Mailing equipment rental or leasing532420 Office Machinery and Equipment Rental and Leasing$40 million in average annual receipts
Mailing list publishers (except exclusive Internet publishing)511140 Directory and Mailing List Publishers1,250 employees
Mailing machines merchant wholesalers423420 Office Equipment Merchant Wholesalers200 employees
Mainframe computers manufacturing334111 Electronic Computer Manufacturing1,250 employees
Maintenance and repair services, aircraft (except factory conversion, factory overhaul, factory rebuilding)488190 Other Support Activities for Air Transportation$40 million in average annual receipts
Maintenance of plants and shrubs in buildings561730 Landscaping Services$9.5 million in average annual receipts
Maintenance of rights-of-way and structures, railway488210 Support Activities for Rail Transportation$34 million in average annual receipts
Maintenance services, runway488119 Other Airport Operations$40 million in average annual receipts
Maintenance services, waterfront terminal (except dredging)488310 Port and Harbor Operations$47 million in average annual receipts
Major league baseball clubs711211 Sports Teams and Clubs$47 million in average annual receipts
Make-up (except permanent) salons812112 Beauty Salons$9.5 million in average annual receipts
Make-up (i.e., cosmetics) manufacturing325620 Toilet Preparation Manufacturing1,250 employees
Make-up salons, permanent812199 Other Personal Care Services$9 million in average annual receipts
Making markets for securities523110 Investment Banking and Securities Dealing$41.5 million in average annual receipts
Malacca furniture (except upholstered), household-type, manufacturing337125 Household Furniture (except Wood and Metal) Manufacturing750 employees
Malathion insecticides manufacturing325320 Pesticide and Other Agricultural Chemical Manufacturing1,150 employees
Maleic anhydride manufacturing325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing1,250 employees
Mall property operation (i.e., not operating contained businesses) rental or leasing531120 Lessors of Nonresidential Buildings (except Miniwarehouses)$34 million in average annual receipts
Malleable iron foundries331511 Iron Foundries1,000 employees
Mallets (e.g., rubber, wood) manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Mallets, wood, manufacturing321999 All Other Miscellaneous Wood Product Manufacturing500 employees
Malonic dinitrile manufacturing325199 All Other Basic Organic Chemical Manufacturing1,250 employees
Malpractice insurance carriers, direct524126 Direct Property and Casualty Insurance Carriers1,500 employees
Malt extract and syrups manufacturing311942 Spice and Extract Manufacturing650 employees
Malt extract merchant wholesalers424490 Other Grocery and Related Products Merchant Wholesalers250 employees
Malt flour manufacturing311213 Malt Manufacturing500 employees
Malt liquor brewing312120 Breweries1,250 employees
Malt manufacturing311213 Malt Manufacturing500 employees
Malt merchant wholesalers424490 Other Grocery and Related Products Merchant Wholesalers250 employees
Malt milling machinery manufacturing333241 Food Product Machinery Manufacturing500 employees
Malt sprouts manufacturing311213 Malt Manufacturing500 employees
Malted milk manufacturing311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing1,000 employees
Malting (germinating and drying grains)311213 Malt Manufacturing500 employees
Maltodextrins manufacturing311221 Wet Corn Milling and Starch Manufacturing1,300 employees
Mammogram (i.e., breast imaging) centers621512 Diagnostic Imaging Centers$19 million in average annual receipts
Man-made fibers merchant wholesalers424690 Other Chemical and Allied Products Merchant Wholesalers175 employees
Management agencies for artists, entertainers, and other public figures711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures$17.5 million in average annual receipts
Management development training611430 Professional and Management Development Training$15 million in average annual receipts
Management services (except complete operation of client's business)561110 Office Administrative Services$12.5 million in average annual receipts
Management services, farm115116 Farm Management Services$15.5 million in average annual receipts
Managers of agricultural fairs with facilities711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities$40 million in average annual receipts
Managers of agricultural fairs without facilities711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities$22 million in average annual receipts
Managers of arts events with facilities711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities$40 million in average annual receipts
Managers of arts events without facilities711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities$22 million in average annual receipts
Managers of festivals with facilities711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities$40 million in average annual receipts
Managers of festivals without facilities711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities$22 million in average annual receipts
Managers of live performing arts productions (e.g., concerts) with facilities711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities$40 million in average annual receipts
Managers of live performing arts productions (e.g., concerts) without facilities711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities$22 million in average annual receipts
Managers of sports events with facilities711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities$40 million in average annual receipts
Managers of sports events without facilities711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities$22 million in average annual receipts
Managers' offices, commercial condominium531312 Nonresidential Property Managers$19.5 million in average annual receipts
Managers' offices, commercial real estate531312 Nonresidential Property Managers$19.5 million in average annual receipts
Managers' offices, nonresidential real estate531312 Nonresidential Property Managers$19.5 million in average annual receipts
Managers' offices, residential condominium531311 Residential Property Managers$12.5 million in average annual receipts
Managers' offices, residential real estate531311 Residential Property Managers$12.5 million in average annual receipts
Managers, authors'711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures$17.5 million in average annual receipts
Managers, celebrities'711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures$17.5 million in average annual receipts
Managers, convention561920 Convention and Trade Show Organizers$20 million in average annual receipts
Managers, entertainers'711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures$17.5 million in average annual receipts
Managers, public figures'711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures$17.5 million in average annual receipts
Managers, sports figures'711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures$17.5 million in average annual receipts
Managers, trade fair or show561920 Convention and Trade Show Organizers$20 million in average annual receipts
Managing commercial condominiums531312 Nonresidential Property Managers$19.5 million in average annual receipts
Managing commercial real estate531312 Nonresidential Property Managers$19.5 million in average annual receipts
Managing cooperative apartments531311 Residential Property Managers$12.5 million in average annual receipts
Managing investment funds523920 Portfolio Management$41.5 million in average annual receipts
Managing mutual funds523920 Portfolio Management$41.5 million in average annual receipts
Managing offices of dentists561110 Office Administrative Services$12.5 million in average annual receipts
Managing offices of physicians and surgeons561110 Office Administrative Services$12.5 million in average annual receipts
Managing offices of professionals (e.g., dentists, physicians, surgeons)561110 Office Administrative Services$12.5 million in average annual receipts
Managing personal investment trusts523920 Portfolio Management$41.5 million in average annual receipts
Managing residential condominiums531311 Residential Property Managers$12.5 million in average annual receipts
Managing residential real estate531311 Residential Property Managers$12.5 million in average annual receipts
Managing trusts523920 Portfolio Management$41.5 million in average annual receipts
Mandarin groves111320 Citrus (except Orange) Groves$4.3 million in average annual receipts
Mandolins manufacturing339992 Musical Instrument Manufacturing1,000 employees
Mandrels (i.e., a machine tool accessory) manufacturing333515 Cutting Tool and Machine Tool Accessory Manufacturing500 employees
Manganese concentrates beneficiating212299 All Other Metal Ore Mining750 employees
Manganese dioxide manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Manganese metal ferroalloys manufacturing331110 Iron and Steel Mills and Ferroalloy Manufacturing1,500 employees
Manganese ores mining and/or beneficiating212299 All Other Metal Ore Mining750 employees
Manganiferous ores valued for iron content, mining and/or beneficiating212210 Iron Ore Mining1,400 employees
Manganiferousares ores (not valued for iron content) mining and/or beneficiating212299 All Other Metal Ore Mining750 employees
Manganite mining and/or beneficiating212299 All Other Metal Ore Mining750 employees
Mango farming111339 Other Noncitrus Fruit Farming$3.5 million in average annual receipts
Mangrove extract manufacturing325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing1,250 employees
Manhole covers, cast iron, manufacturing331511 Iron Foundries1,000 employees
Manicure and pedicure salons812113 Nail Salons$9 million in average annual receipts
Manicure and pedicure schools611511 Cosmetology and Barber Schools$13 million in average annual receipts
Manicure preparations manufacturing325620 Toilet Preparation Manufacturing1,250 employees
Manicurist services812113 Nail Salons$9 million in average annual receipts
Manifold business forms printing323111 Commercial Printing (except Screen and Books)650 employees
Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing1,050 employees
Manifolds, pipe, made from purchased metal pipe332996 Fabricated Pipe and Pipe Fitting Manufacturing550 employees
Manila folders, die-cut, made from purchased paper or paperboard322230 Stationery Product Manufacturing750 employees
Manmade cellulosic fibers manufacturing325220 Artificial and Synthetic Fibers and Filaments Manufacturing1,050 employees
Manmade fabric, narrow woven, weaving313220 Narrow Fabric Mills and Schiffli Machine Embroidery550 employees
Manmade fabrics, broadwoven, weaving313210 Broadwoven Fabric Mills1,000 employees
Manmade fiber thread manufacturing313110 Fiber, Yarn, and Thread Mills1,250 employees
Manmade noncellulosic fibers and filaments manufacturing325220 Artificial and Synthetic Fibers and Filaments Manufacturing1,050 employees
Manmade staple spun yarns made from purchased fiber313110 Fiber, Yarn, and Thread Mills1,250 employees
Mannequin decorating services541890 Other Services Related to Advertising$19 million in average annual receipts
Mannequins manufacturing339999 All Other Miscellaneous Manufacturing550 employees
Mannequins merchant wholesalers423440 Other Commercial Equipment Merchant Wholesalers100 employees
Mannitol hexanitrate explosive materials manufacturing325920 Explosives Manufacturing750 employees
Manometers, industrial process-type, manufacturing334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables750 employees
Manpower pools561320 Temporary Help Services$34 million in average annual receipts
Mantel, marble or stone, installation238340 Tile and Terrazzo Contractors$19 million in average annual receipts
Manual-arts therapists' offices (e.g., centers, clinics)621399 Offices of All Other Miscellaneous Health Practitioners$10 million in average annual receipts
Manufactured (i.e., mobile) homes merchant wholesalers423390 Other Construction Material Merchant Wholesalers100 employees
Manufactured (mobile) buildings for commercial use (e.g., banks, offices) manufacturing321991 Manufactured Home (Mobile Home) Manufacturing1,250 employees
Manufactured (mobile) classrooms manufacturing321991 Manufactured Home (Mobile Home) Manufacturing1,250 employees
Manufactured (mobile) home dealers453930 Manufactured (Mobile) Home Dealers$16.5 million in average annual receipts
Manufactured (mobile) home parks531190 Lessors of Other Real Estate Property$34 million in average annual receipts
Manufactured (mobile) home set up and tie down238990 All Other Specialty Trade Contractors$19 million in average annual receipts
Manufactured (mobile) home sites rental or leasing531190 Lessors of Other Real Estate Property$34 million in average annual receipts
Manufactured (mobile) homes manufacturing321991 Manufactured Home (Mobile Home) Manufacturing1,250 employees
Manufactured gas production and distribution221210 Natural Gas Distribution1,150 employees
Manufacturers' associations813910 Business Associations$15.5 million in average annual receipts
Manufacturing building construction236210 Industrial Building Construction$45 million in average annual receipts
Manufacturing building rental or leasing531120 Lessors of Nonresidential Buildings (except Miniwarehouses)$34 million in average annual receipts
Manufacturing machinery and equipment rental or leasing532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing$40 million in average annual receipts
Manufacturing management consulting services541614 Process, Physical Distribution, and Logistics Consulting Services$20 million in average annual receipts
Manufacturing operations improvement consulting services541614 Process, Physical Distribution, and Logistics Consulting Services$20 million in average annual receipts
Map publishers (except exclusive Internet publishing)511130 Book Publishers1,000 employees
Map publishers and printing combined511130 Book Publishers1,000 employees
Map publishers, exclusively on Internet519130 Internet Publishing and Broadcasting and Web Search Portals1,000 employees
Maple sap concentrating (i.e., producing pure maple syrup in the field)111998 All Other Miscellaneous Crop Farming$2.5 million in average annual receipts
Maple sap gathering111998 All Other Miscellaneous Crop Farming$2.5 million in average annual receipts
Maple syrup (i.e., maple sap reducing)111998 All Other Miscellaneous Crop Farming$2.5 million in average annual receipts
Maple syrup mixing into other products311999 All Other Miscellaneous Food Manufacturing700 employees
Mapping (except geophysical) services541370 Surveying and Mapping (except Geophysical) Services$19 million in average annual receipts
Mapping services, geophysical541360 Geophysical Surveying and Mapping Services$28.5 million in average annual receipts
Maps (except globe, school, wall) merchant wholesalers424920 Book, Periodical, and Newspaper Merchant Wholesalers200 employees
Maps commercial printing (except screen) without publishing323111 Commercial Printing (except Screen and Books)650 employees
Maps flexographic printing without publishing323112 Commercial Flexographic PrintingRetired code (NAICS 2007)—
Maps lithographic (offset) printing without publishing323110 Commercial Lithographic PrintingRetired code (NAICS 2007)—
Maps printing (except flexographic, digital, gravure, lithographic, quick, screen) without publishing323119 Other Commercial PrintingRetired code (NAICS 2007)—
Maps screen printing without publishing323113 Commercial Screen Printing500 employees
Marble crushed and broken stone mining and/or beneficiating212319 Other Crushed and Broken Stone Mining and Quarrying550 employees
Marble mining or quarrying212311 Dimension Stone Mining and Quarrying500 employees
Marble, granite and slate, exterior, contractors238140 Masonry Contractors$19 million in average annual receipts
Marble, granite and slate, interior, contractors238340 Tile and Terrazzo Contractors$19 million in average annual receipts
Marbles manufacturing339930 Doll, Toy, and Game Manufacturing700 employees
Marcasite mining and/or beneficiating212393 Other Chemical and Fertilizer Mineral Mining500 employees
Margaric acid manufacturing325199 All Other Basic Organic Chemical Manufacturing1,250 employees
Margarine and other corn oils made by wet milling corn311221 Wet Corn Milling and Starch Manufacturing1,300 employees
Margarine merchant wholesalers424490 Other Grocery and Related Products Merchant Wholesalers250 employees
Margarine-butter blend made from purchased fats and oils311225 Fats and Oils Refining and Blending1,100 employees
Margarines (including imitation) made from purchased fats and oils311225 Fats and Oils Refining and Blending1,100 employees
Marinas713930 Marinas$11 million in average annual receipts
Marine and navy auxiliary controls, manufacturing335314 Relay and Industrial Control Manufacturing750 employees
Marine basins, operation of713930 Marinas$11 million in average annual receipts
Marine cargo checkers and surveyors488390 Other Support Activities for Water Transportation$47 million in average annual receipts
Marine cargo handling services488320 Marine Cargo Handling$47 million in average annual receipts
Marine construction237990 Other Heavy and Civil Engineering Construction$45 million in average annual receipts
Marine Corps928110 National Security—
Marine engineering services541330 Engineering Services$25.5 million in average annual receipts
Marine engines manufacturing333618 Other Engine Equipment Manufacturing1,500 employees
Marine hardware, metal, manufacturing332510 Hardware Manufacturing750 employees
Marine horns, compressed air or steam, metal, manufacturing332999 All Other Miscellaneous Fabricated Metal Product Manufacturing750 employees
Marine insurance carriers, direct524126 Direct Property and Casualty Insurance Carriers1,500 employees
Marine museums712110 Museums$34 million in average annual receipts
Marine navigational schools611519 Other Technical and Trade Schools$21 million in average annual receipts
Marine paints manufacturing325510 Paint and Coating Manufacturing1,000 employees
Marine power boilers manufacturing332410 Power Boiler and Heat Exchanger Manufacturing750 employees
Marine radio communications equipment manufacturing334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing1,250 employees
Marine reinsurance carriers524130 Reinsurance Carriers$47 million in average annual receipts
Marine salvaging services488330 Navigational Services to Shipping$47 million in average annual receipts
Marine service stations447190 Other Gasoline Stations$29.5 million in average annual receipts
Marine shipping agency488510 Freight Transportation Arrangement$20 million in average annual receipts
Marine storage batteries manufacturing335911 Storage Battery Manufacturing1,250 employees
Marine supplies (except pleasure) merchant wholesalers423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers175 employees
Marine supplies, pleasure, merchant wholesalers423910 Sporting and Recreational Goods and Supplies Merchant Wholesalers100 employees
Marine supply dealers441222 Boat Dealers$40 million in average annual receipts
Marine surveyor (i.e., ship appraiser) services541990 All Other Professional, Scientific, and Technical Services$19.5 million in average annual receipts
Marine vessel traffic reporting services488330 Navigational Services to Shipping$47 million in average annual receipts
Marionettes (i.e., puppets) manufacturing339999 All Other Miscellaneous Manufacturing550 employees
Marker boards (i.e., whiteboards) manufacturing339940 Office Supplies (except Paper) Manufacturing750 employees
Market making for securities523110 Investment Banking and Securities Dealing$41.5 million in average annual receipts
Marketing analysis services541910 Marketing Research and Public Opinion Polling$22.5 million in average annual receipts
Marketing consulting services541613 Marketing Consulting Services$19 million in average annual receipts
Marketing management consulting services541613 Marketing Consulting Services$19 million in average annual receipts
Marketing research services541910 Marketing Research and Public Opinion Polling$22.5 million in average annual receipts
Marking devices manufacturing339940 Office Supplies (except Paper) Manufacturing750 employees
Marking devices merchant wholesalers424120 Stationery and Office Supplies Merchant Wholesalers150 employees
Marking machines, metal, manufacturing333519 Rolling Mill and Other Metalworking Machinery Manufacturing500 employees
Marl crushed and broken stone mining and/or beneficiating212312 Crushed and Broken Limestone Mining and Quarrying750 employees
Marmalade manufacturing311421 Fruit and Vegetable Canning1,000 employees
Marquetry, wood, manufacturing321999 All Other Miscellaneous Wood Product Manufacturing500 employees
Marriage counseling services (except by offices of mental health practitioners)624190 Other Individual and Family Services$16 million in average annual receipts
Marshals' offices922120 Police Protection—
Marshmallow creme manufacturing311340 Nonchocolate Confectionery Manufacturing1,000 employees
Marshmallows manufacturing311340 Nonchocolate Confectionery Manufacturing1,000 employees
Martial arts instruction, camps, or schools611620 Sports and Recreation Instruction$9 million in average annual receipts
Marzipan (i.e., candy) manufacturing311340 Nonchocolate Confectionery Manufacturing1,000 employees
Maser (i.e., microwave amplification by stimulated emission of radiation) amplifiers manufacturing335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing600 employees
Mashers, potato, wood, manufacturing321999 All Other Miscellaneous Wood Product Manufacturing500 employees
Masking tape made from purchased paper322220 Paper Bag and Coated and Treated Paper Manufacturing750 employees
Mason's handtools manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Mason's materials merchant wholesalers423320 Brick, Stone, and Related Construction Material Merchant Wholesalers150 employees
Masonry (e.g., block, brick, stone) dealers444190 Other Building Material Dealers$22 million in average annual receipts
Masonry contractors238140 Masonry Contractors$19 million in average annual receipts
Masonry pointing, cleaning or caulking238140 Masonry Contractors$19 million in average annual receipts
Mass spectrometers manufacturing334516 Analytical Laboratory Instrument Manufacturing1,000 employees
Mass spectroscopy instrumentation manufacturing334516 Analytical Laboratory Instrument Manufacturing1,000 employees
Massage machines, electric (except designed for beauty and barber shop use), manufacturing335210 Small Electrical Appliance Manufacturing1,500 employees
Massage parlors812199 Other Personal Care Services$9 million in average annual receipts
Massage therapist instruction611519 Other Technical and Trade Schools$21 million in average annual receipts
Massage therapists' offices621399 Offices of All Other Miscellaneous Health Practitioners$10 million in average annual receipts
Master recording leasing and licensing512250 Record Production and Distribution900 employees
Mastics (except construction) merchant wholesalers424690 Other Chemical and Allied Products Merchant Wholesalers175 employees
Masts, wood, manufacturing321999 All Other Miscellaneous Wood Product Manufacturing500 employees
Mat and rug supply services812332 Industrial Launderers$47 million in average annual receipts
Matches and match books manufacturing325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing650 employees
Matches and match books merchant wholesalers424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers100 employees
Materials handling equipment installation238290 Other Building Equipment Contractors$22 million in average annual receipts
Materials handling equipment repair and maintenance services811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance$12.5 million in average annual receipts
Materials handling machinery and equipment merchant wholesalers423830 Industrial Machinery and Equipment Merchant Wholesalers100 employees
Materials handling machinery and equipment rental or leasing532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing$40 million in average annual receipts
Materials management consulting services541614 Process, Physical Distribution, and Logistics Consulting Services$20 million in average annual receipts
Materials recovery facilities (MRF)562920 Materials Recovery Facilities$25 million in average annual receipts
Materials recovery facility construction236210 Industrial Building Construction$45 million in average annual receipts
Maternity and child health program administration923120 Administration of Public Health Programs—
Maternity bras and corsets cut and sew apparel contractors315210 Cut and Sew Apparel Contractors750 employees
Maternity bras and corsets, women's and girls', cut and sewn from purchased fabric (except apparel contractors)315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing750 employees
Maternity bras and corsets, women's, cut and sew apparel contractors315212 Women's, Girls', and Infants' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Maternity bras and corsets, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors)315231 Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear ManufacturingRetired code (NAICS 2007)—
Maternity hospitals622310 Specialty (except Psychiatric and Substance Abuse) Hospitals$47 million in average annual receipts
Maternity shops448120 Women's Clothing Stores$30 million in average annual receipts
Mathematics research and development laboratories or services541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)1,000 employees
Mats and matting made from purchased wire332618 Other Fabricated Wire Product Manufacturing500 employees
Mattocks (i.e., handtools) manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Mattress protectors, rubber, manufacturing326299 All Other Rubber Product Manufacturing650 employees
Mattress springs and spring units, light gauge, made from purchased wire or strip332613 Spring Manufacturing600 employees
Mattress stores (including waterbeds)442110 Furniture Stores$22 million in average annual receipts
Mattresses (i.e., box spring, innerspring, noninnerspring) manufacturing337910 Mattress Manufacturing1,000 employees
Mattresses made from felt, foam rubber, urethane and similar materials337910 Mattress Manufacturing1,000 employees
Mattresses merchant wholesalers423210 Furniture Merchant Wholesalers100 employees
Mattresses, air, plastics, manufacturing326199 All Other Plastics Product Manufacturing750 employees
Mattresses, air, rubber, manufacturing326299 All Other Rubber Product Manufacturing650 employees
Matzo baking made in commercial bakeries311812 Commercial Bakeries1,000 employees
Mauls, metal, manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Mauls, wood, manufacturing321999 All Other Miscellaneous Wood Product Manufacturing500 employees
Mausoleum (i.e., building) construction236220 Commercial and Institutional Building Construction$45 million in average annual receipts
Mausoleums812220 Cemeteries and Crematories$25 million in average annual receipts
Mayonnaise manufacturing311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing850 employees
Mayor's offices921110 Executive Offices—
MDF (medium density fiberboard) manufacturing321219 Reconstituted Wood Product Manufacturing750 employees
MDs' (medical doctors), mental health, offices (e.g., centers, clinics)621112 Offices of Physicians, Mental Health Specialists$13.5 million in average annual receipts
MDs' (medical doctors, except mental health) offices (e.g., centers, clinics)621111 Offices of Physicians (except Mental Health Specialists)$16 million in average annual receipts
Meal delivery programs624210 Community Food Services$19.5 million in average annual receipts
Meal, alfalfa, manufacturing311119 Other Animal Food Manufacturing650 employees
Meal, bone, prepared as feed for animals and fowls, manufacturing311119 Other Animal Food Manufacturing650 employees
Meal, corn, for human consumption made in flour mills311211 Flour Milling1,050 employees
Measuring and testing equipment (except automotive) merchant wholesalers423830 Industrial Machinery and Equipment Merchant Wholesalers100 employees
Measuring attachments (e.g., sine bars) for machine tool manufacturing333515 Cutting Tool and Machine Tool Accessory Manufacturing500 employees
Measuring equipment for electronic and electrical circuits and equipment manufacturing334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals750 employees
Measuring instrument repair and maintenance services811219 Other Electronic and Precision Equipment Repair and Maintenance$22 million in average annual receipts
Measuring instruments and meters, electric, manufacturing334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals750 employees
Measuring instruments, industrial process control-type, manufacturing334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables750 employees
Measuring tools, machinist's (except optical), manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Measuring wheels manufacturing334514 Totalizing Fluid Meter and Counting Device Manufacturing850 employees
Meat and bone meal and tankage, produced in rendering plant311613 Rendering and Meat Byproduct Processing750 employees
Meat canning (except baby, pet food, poultry), made from purchased carcasses311612 Meat Processed from Carcasses1,000 employees
Meat canning (except poultry) produced in slaughtering plants311611 Animal (except Poultry) Slaughtering1,150 employees
Meat canning, baby food, manufacturing311422 Specialty Canning1,400 employees
Meat canning, dog and cat, pet food, made from purchased carcasses311111 Dog and Cat Food Manufacturing1,250 employees
Meat canning, poultry (except baby and pet food), manufacturing311615 Poultry Processing1,250 employees
Meat extracts made from purchased carcasses311612 Meat Processed from Carcasses1,000 employees
Meat grinders, food-type, manufacturing333241 Food Product Machinery Manufacturing500 employees
Meat markets445210 Meat Markets$8 million in average annual receipts
Meat products (e.g., hot dogs, luncheon meats, sausages) made from a combination of poultry and other meats311615 Poultry Processing1,250 employees
Meat products canning (except baby, pet food, poultry) made from purchased carcasses311612 Meat Processed from Carcasses1,000 employees
Meat products, dog and cat, pet food, canning, made from purchased carcasses311111 Dog and Cat Food Manufacturing1,250 employees
Meats (except poultry), cured or smoked, made from purchased carcasses311612 Meat Processed from Carcasses1,000 employees
Meats and meat products (except canned, packaged frozen) merchant wholesalers424470 Meat and Meat Product Merchant Wholesalers150 employees
Meats fresh, chilled or frozen (except poultry and small game), produced in slaughtering plants311611 Animal (except Poultry) Slaughtering1,150 employees
Meats, canned, merchant wholesalers424490 Other Grocery and Related Products Merchant Wholesalers250 employees
Meats, cured or smoked, merchant wholesalers424470 Meat and Meat Product Merchant Wholesalers150 employees
Meats, cured or smoked, produced in slaughtering plants311611 Animal (except Poultry) Slaughtering1,150 employees
Meats, fresh or chilled (except poultry and small game), frozen, made from purchased carcasses311612 Meat Processed from Carcasses1,000 employees
Meats, fresh, merchant wholesalers424470 Meat and Meat Product Merchant Wholesalers150 employees
Meats, frozen (except packaged), merchant wholesalers424470 Meat and Meat Product Merchant Wholesalers150 employees
Meats, packaged frozen, merchant wholesalers424420 Packaged Frozen Food Merchant Wholesalers200 employees
Mechanic's apprenticeship training611513 Apprenticeship Training$11.5 million in average annual receipts
Mechanic's creepers manufacturing333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing900 employees
Mechanic's hand soaps and pastes manufacturing325611 Soap and Other Detergent Manufacturing1,100 employees
Mechanic's handtools, nonpowered, manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Mechanic's schools (except apprenticeship)611519 Other Technical and Trade Schools$21 million in average annual receipts
Mechanic's tools merchant wholesalers423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers200 employees
Mechanical contractors238220 Plumbing, Heating, and Air-Conditioning Contractors$19 million in average annual receipts
Mechanical engineering services541330 Engineering Services$25.5 million in average annual receipts
Mechanical equipment insulation238290 Other Building Equipment Contractors$22 million in average annual receipts
Mechanical finishing of broadwoven fabrics313311 Broadwoven Fabric Finishing MillsRetired code (NAICS 2007)—
Mechanical leather manufacturing316110 Leather and Hide Tanning and Finishing800 employees
Mechanical measuring instruments, industrial process-type, manufacturing334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables750 employees
Mechanical pencil refills manufacturing339940 Office Supplies (except Paper) Manufacturing750 employees
Mechanical pencils manufacturing339940 Office Supplies (except Paper) Manufacturing750 employees
Mechanical power transmission equipment repair and maintenance services811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance$12.5 million in average annual receipts
Mechanical power transmission supplies (e.g., gears, pulleys, sprockets) merchant wholesalers423840 Industrial Supplies Merchant Wholesalers125 employees
Mechanical rubber goods (i.e., extruded, lathe-cut, molded) manufacturing326291 Rubber Product Manufacturing for Mechanical Use750 employees
Mechanical rubber goods merchant wholesalers423840 Industrial Supplies Merchant Wholesalers125 employees
Mechanical testing laboratories or services541380 Testing Laboratories and Services$19 million in average annual receipts
Mechanisms for coin-operated machines manufacturing333318 Other Commercial and Service Industry Machinery Manufacturing1,000 employees
Mechanisms, clockwork operated device, manufacturing334519 Other Measuring and Controlling Device Manufacturing600 employees
Media advertising representatives (i.e., independent of media owners)541840 Media Representatives$21 million in average annual receipts
Media buying agencies541830 Media Buying Agencies$32.5 million in average annual receipts
Media buying services541830 Media Buying Agencies$32.5 million in average annual receipts
Media representatives (i.e., independent of media owners)541840 Media Representatives$21 million in average annual receipts
Media streaming services518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services$40 million in average annual receipts
Mediation and conciliation services, government926150 Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors—
Mediation product services (except by lawyer, attorney, paralegal offices, family and social services)541990 All Other Professional, Scientific, and Technical Services$19.5 million in average annual receipts
Mediation, social service, family, agencies624190 Other Individual and Family Services$16 million in average annual receipts
Medical and surgical equipment repair and maintenance services811219 Other Electronic and Precision Equipment Repair and Maintenance$22 million in average annual receipts
Medical art services541430 Graphic Design Services$9 million in average annual receipts
Medical artists, independent541430 Graphic Design Services$9 million in average annual receipts
Medical assistance programs administration, government923130 Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs)—
Medical associations813920 Professional Organizations$23.5 million in average annual receipts
Medical building rental or leasing531120 Lessors of Nonresidential Buildings (except Miniwarehouses)$34 million in average annual receipts
Medical care management services621999 All Other Miscellaneous Ambulatory Health Care Services$20.5 million in average annual receipts
Medical case management services621999 All Other Miscellaneous Ambulatory Health Care Services$20.5 million in average annual receipts
Medical cleaning equipment, ultrasonic, manufacturing334510 Electromedical and Electrotherapeutic Apparatus Manufacturing1,250 employees
Medical cost evaluation services524298 All Other Insurance Related Activities$30.5 million in average annual receipts
Medical doctors' (MDs), mental health, offices (e.g. centers, clinics)621112 Offices of Physicians, Mental Health Specialists$13.5 million in average annual receipts
Medical doctors' (MDs, except mental health) offices (e.g., centers, clinics)621111 Offices of Physicians (except Mental Health Specialists)$16 million in average annual receipts
Medical dressings merchant wholesalers423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers200 employees
Medical equipment (except home health furniture and equipment) rental or leasing532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing$40 million in average annual receipts
Medical equipment and supplies stores446199 All Other Health and Personal Care Stores$8.5 million in average annual receipts
Medical equipment merchant wholesalers423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers200 employees
Medical furniture merchant wholesalers423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers200 employees
Medical glassware made from purchased glass327215 Glass Product Manufacturing Made of Purchased Glass1,000 employees
Medical glassware made in glass making plants327212 Other Pressed and Blown Glass and Glassware Manufacturing1,250 employees
Medical glassware merchant wholesalers423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers200 employees
Medical illustration services541430 Graphic Design Services$9 million in average annual receipts
Medical illustrators, independent541430 Graphic Design Services$9 million in average annual receipts
Medical instruments merchant wholesalers423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers200 employees
Medical insurance carriers, direct524114 Direct Health and Medical Insurance Carriers$47 million in average annual receipts
Medical journal and periodical publishers (except exclusive Internet publishing)511120 Periodical Publishers1,000 employees
Medical journal and periodical publishers and printing combined511120 Periodical Publishers1,000 employees
Medical journal and periodical publishers, exclusively on Internet519130 Internet Publishing and Broadcasting and Web Search Portals1,000 employees
Medical laboratories (except radiological, X-ray)621511 Medical Laboratories$41.5 million in average annual receipts
Medical laboratories, radiological or X-ray621512 Diagnostic Imaging Centers$19 million in average annual receipts
Medical office management consulting services or consultants541611 Administrative Management and General Management Consulting Services$24.5 million in average annual receipts
Medical office management services561110 Office Administrative Services$12.5 million in average annual receipts
Medical pathology laboratories621511 Medical Laboratories$41.5 million in average annual receipts
Medical photography services541922 Commercial Photography$9 million in average annual receipts
Medical radiation therapy equipment manufacturing334517 Irradiation Apparatus Manufacturing1,200 employees
Medical radiological laboratories621512 Diagnostic Imaging Centers$19 million in average annual receipts
Medical reinsurance carriers524130 Reinsurance Carriers$47 million in average annual receipts
Medical research and development laboratories or services (except biotechnology research and development)541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)1,000 employees
Medical schools611310 Colleges, Universities, and Professional Schools$34.5 million in average annual receipts
Medical service apparel cut and sew apparel contractors315210 Cut and Sew Apparel Contractors750 employees
Medical service apparel, men's and boys', cut and sew apparel contractors315211 Men's and Boys' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Medical service apparel, men's and boys', cut and sewn from purchased fabric (except apparel contractors)315220 Men's and Boys' Cut and Sew Apparel Manufacturing750 employees
Medical service apparel, women's and girls', cut and sewn from purchased fabric (except apparel contractors)315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing750 employees
Medical service apparel, women's, cut and sew apparel contractors315212 Women's, Girls', and Infants' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Medical service apparel, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors)315239 Women's and Girls' Cut and Sew Other Outerwear ManufacturingRetired code (NAICS 2007)—
Medical service plans without providing health care services524114 Direct Health and Medical Insurance Carriers$47 million in average annual receipts
Medical sundries, rubber, merchant wholesalers424210 Drugs and Druggists' Sundries Merchant Wholesalers250 employees
Medical supplies merchant wholesalers423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers200 employees
Medical technician schools611519 Other Technical and Trade Schools$21 million in average annual receipts
Medical thermometers manufacturing339112 Surgical and Medical Instrument Manufacturing1,000 employees
Medical ultrasound equipment manufacturing334510 Electromedical and Electrotherapeutic Apparatus Manufacturing1,250 employees
Medical X-ray laboratories621512 Diagnostic Imaging Centers$19 million in average annual receipts
Medicare and Medicaid administration923130 Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs)—
Medicinal chemicals, uncompounded, manufacturing325411 Medicinal and Botanical Manufacturing1,000 employees
Medicine cabinets (except freestanding), wood household-type, manufacturing337110 Wood Kitchen Cabinet and Countertop Manufacturing750 employees
Medicine cabinets, metal household-type, manufacturing337124 Metal Household Furniture Manufacturing750 employees
Medium density fiberboard (MDF) manufacturing321219 Reconstituted Wood Product Manufacturing750 employees
Meerschaum mining and/or beneficiating212399 All Other Nonmetallic Mineral Mining500 employees
Meeting hall and room rental or leasing531120 Lessors of Nonresidential Buildings (except Miniwarehouses)$34 million in average annual receipts
Melamine resins manufacturing325211 Plastics Material and Resin Manufacturing1,250 employees
Melon farming (e.g., cantaloupe, casaba, honeydew, watermelon), field, bedding plant and seed production111219 Other Vegetable (except Potato) and Melon Farming$3.8 million in average annual receipts
Melon farming, grown under cover111419 Other Food Crops Grown Under Cover$4.5 million in average annual receipts
Melt blown nonwoven fabrics manufacturing313230 Nonwoven Fabric Mills850 employees
Melton jackets cut and sew apparel contractors315210 Cut and Sew Apparel Contractors750 employees
Melton jackets, infants', cut and sewn from purchased fabric (except apparel contractors)315291 Infants' Cut and Sew Apparel ManufacturingRetired code (NAICS 2007)—
Melton jackets, men's and boys', cut and sew apparel contractors315211 Men's and Boys' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Melton jackets, men's and boys', cut and sewn from purchased fabric (except apparel contractors)315220 Men's and Boys' Cut and Sew Apparel Manufacturing750 employees
Melton jackets, women's, girls', and infants', cut and sew apparel contractors315212 Women's, Girls', and Infants' Cut and Sew Apparel ContractorsRetired code (NAICS 2007)—
Melton jackets, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors)315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing750 employees
Melton jackets, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors)315239 Women's and Girls' Cut and Sew Other Outerwear ManufacturingRetired code (NAICS 2007)—
Membership associations, civic or social813410 Civic and Social Organizations$9.5 million in average annual receipts
Membership hotels721110 Hotels (except Casino Hotels) and Motels$40 million in average annual receipts
Memorial gardens (i.e., burial places)812220 Cemeteries and Crematories$25 million in average annual receipts
Memory boards manufacturing334418 Printed Circuit Assembly (Electronic Assembly) Manufacturing750 employees
Men's and boys' clothing merchant wholesalers424320 Men's and Boys' Clothing and Furnishings Merchant Wholesalers150 employees
Men's and boys' furnishings (except shoes) merchant wholesalers424320 Men's and Boys' Clothing and Furnishings Merchant Wholesalers150 employees
Men's socks knitting or knitting and finishing315110 Hosiery and Sock Mills750 employees
Menageries712130 Zoos and Botanical Gardens$34 million in average annual receipts
Menhaden fishing114111 Finfish Fishing$25 million in average annual receipts
Mental (except intellectual and developmental disability) hospitals622210 Psychiatric and Substance Abuse Hospitals$47 million in average annual receipts
Mental health centers and clinics (except hospitals), outpatient621420 Outpatient Mental Health and Substance Abuse Centers$19 million in average annual receipts
Mental health facilities, residential623220 Residential Mental Health and Substance Abuse Facilities$19 million in average annual receipts
Mental health halfway houses623220 Residential Mental Health and Substance Abuse Facilities$19 million in average annual receipts
Mental health hospitals622210 Psychiatric and Substance Abuse Hospitals$47 million in average annual receipts
Mental health physicians' offices (e.g., centers, clinics)621112 Offices of Physicians, Mental Health Specialists$13.5 million in average annual receipts
Mental health program administration923120 Administration of Public Health Programs—
Mercantile credit reporting bureaus561450 Credit Bureaus$41 million in average annual receipts
Mercerizing broadwoven fabrics313311 Broadwoven Fabric Finishing MillsRetired code (NAICS 2007)—
Mercerizing machinery manufacturing333249 Other Industrial Machinery Manufacturing500 employees
Mercerizing narrow woven textile products and fabrics (except broadwoven)313312 Textile and Fabric Finishing (except Broadwoven Fabric) MillsRetired code (NAICS 2007)—
Mercerizing textile products and fabrics313310 Textile and Fabric Finishing Mills1,000 employees
Merchandise bags, plastics film, single wall or multiwall, manufacturing326111 Plastics Bag and Pouch Manufacturing750 employees
Merchandising machines, coin-operated, merchant wholesalers423440 Other Commercial Equipment Merchant Wholesalers100 employees
Merchant builders (i.e., building on own land, for sale), residential236117 New Housing For-Sale Builders$45 million in average annual receipts
Merchant Marine (except academy)926120 Regulation and Administration of Transportation Programs—
Merchants' associations813910 Business Associations$15.5 million in average annual receipts
Mercuric oxide batteries manufacturing335912 Primary Battery Manufacturing1,000 employees
Mercury (quicksilver) mining and/or beneficiating212299 All Other Metal Ore Mining750 employees
Mercury arc rectifiers (i.e., electrical apparatus) manufacturing335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing600 employees
Mercury chloride manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Mercury compounds, not specified elsewhere by process, manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Mercury fulminate explosive materials manufacturing325920 Explosives Manufacturing750 employees
Mercury halide lamp bulbs manufacturing335110 Electric Lamp Bulb and Part Manufacturing1,250 employees
Mercury ores mining and/or beneficiating212299 All Other Metal Ore Mining750 employees
Mercury oxide manufacturing325180 Other Basic Inorganic Chemical Manufacturing1,000 employees
Mesh made from purchased wire332618 Other Fabricated Wire Product Manufacturing500 employees
Mesh, wire, made from purchased copper in wire drawing plants331420 Copper Rolling, Drawing, Extruding, and Alloying1,050 employees
Mesh, wire, made in aluminum wire drawing plants331318 Other Aluminum Rolling, Drawing, and Extruding750 employees
Mesh, wire, made in iron and steel mills331110 Iron and Steel Mills and Ferroalloy Manufacturing1,500 employees
Mesh, wire, made in wire drawing mills331222 Steel Wire Drawing1,000 employees
Mesh, wire, nonferrous metals (except aluminum, copper), made from purchased nonferrous metals (except aluminum, copper) in wire drawing plants331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding900 employees
Message services, telephone answering561421 Telephone Answering Services$19 million in average annual receipts
Messenger service492210 Local Messengers and Local Delivery$34 million in average annual receipts
Metabolite in-vivo diagnostic substances manufacturing325412 Pharmaceutical Preparation Manufacturing1,300 employees
Metal cans, light gauge metal, manufacturing332431 Metal Can Manufacturing1,500 employees
Metal casting machinery and equipment manufacturing333249 Other Industrial Machinery Manufacturing500 employees
Metal cutting machine tools manufacturing333517 Machine Tool Manufacturing500 employees
Metal cutting saw blades manufacturing332216 Saw Blade and Handtool Manufacturing750 employees
Metal cyanides merchant wholesalers424690 Other Chemical and Allied Products Merchant Wholesalers175 employees
Metal deposit forming machines manufacturing333517 Machine Tool Manufacturing500 employees
Metal detectors manufacturing334519 Other Measuring and Controlling Device Manufacturing600 employees
Metal fabric and mesh safety gloves manufacturing339113 Surgical Appliance and Supplies Manufacturing800 employees
Metal foil containers (except bags) manufacturing332999 All Other Miscellaneous Fabricated Metal Product Manufacturing750 employees
Metal forming machine tools manufacturing333517 Machine Tool Manufacturing500 employees
Metal framed furniture, household-type, upholstered, manufacturing337121 Upholstered Household Furniture Manufacturing1,000 employees
Metal furring contractors238190 Other Foundation, Structure, and Building Exterior Contractors$19 million in average annual receipts
Metal hand stamps manufacturing339940 Office Supplies (except Paper) Manufacturing750 employees
Metal melting furnaces, industrial, manufacturing333994 Industrial Process Furnace and Oven Manufacturing500 employees
Metal mining support services (shaft sinking, tunneling, blasting) (except site preparation and related construction contractor activities)213114 Support Activities for Metal Mining$41 million in average annual receipts
Metal motor vehicle body parts stamping336370 Motor Vehicle Metal Stamping1,000 employees
Metal ores merchant wholesalers423520 Coal and Other Mineral and Ore Merchant Wholesalers200 employees
Metal oxide silicon (MOS) devices manufacturing334413 Semiconductor and Related Device Manufacturing1,250 employees
Metal pipe merchant wholesalers423510 Metal Service Centers and Other Metal Merchant Wholesalers200 employees
Metal polishes (i.e., tarnish removers) manufacturing325612 Polish and Other Sanitation Good Manufacturing900 employees
Metal powder and flake made from purchased aluminum331314 Secondary Smelting and Alloying of Aluminum750 employees
Metal powder and flake made from purchased copper331420 Copper Rolling, Drawing, Extruding, and Alloying1,050 employees
Metal powder and flake made from purchased iron or steel331221 Rolled Steel Shape Manufacturing1,000 employees
Metal powder and flake nonferrous (except aluminum, copper) made from purchased metal331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)850 employees
Metal processing plant construction236210 Industrial Building Construction$45 million in average annual receipts
Metal products (e.g., bars, ingots, plates, rods, shapes, sheets) merchant wholesalers423510 Metal Service Centers and Other Metal Merchant Wholesalers200 employees
Metal scrap and waste merchant wholesalers423930 Recyclable Material Merchant Wholesalers125 employees
Metal siding installation238170 Siding Contractors$19 million in average annual receipts
Metal stampings (except automotive, cans, coins), unfinished, manufacturing332119 Metal Crown, Closure, and Other Metal Stamping (except Automotive)500 employees
Metal stampings (except automotive, cans, cooking, closures, crowns), unfinished, manufacturing332116 Metal StampingRetired code (NAICS 2007)—
Metal-graphite product manufacturing335991 Carbon and Graphite Product Manufacturing900 employees
Metallic concentrates merchant wholesalers423520 Coal and Other Mineral and Ore Merchant Wholesalers200 employees
Metallic pigments, inorganic, manufacturing325130 Synthetic Dye and Pigment Manufacturing1,050 employees
Metallic soap manufacturing325199 All Other Basic Organic Chemical Manufacturing1,250 employees
Metallizing purchased textiles313320 Fabric Coating Mills1,000 employees
Metallurgical testing laboratories or services541380 Testing Laboratories and Services$19 million in average annual receipts
Metals sales offices423510 Metal Service Centers and Other Metal Merchant Wholesalers200 employees
Metals service centers423510 Metal Service Centers and Other Metal Merchant Wholesalers200 employees
Metals, ferrous and nonferrous, merchant wholesalers423510 Metal Service Centers and Other Metal Merchant Wholesalers200 employees
Metals, precious, merchant wholesalers423940 Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers125 employees
Metalworking lathes manufacturing333517 Machine Tool Manufacturing500 employees
Metalworking machinery and equipment merchant wholesalers423830 Industrial Machinery and Equipment Merchant Wholesalers100 employees
Metalworking machinery and equipment rental or leasing532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing$40 million in average annual receipts
Meteorologic tracking systems manufacturing334519 Other Measuring and Controlling Device Manufacturing600 employees
Meteorological instrument repair and maintenance services811219 Other Electronic and Precision Equipment Repair and Maintenance$22 million in average annual receipts

Business activities are the U.S. Census Bureau's illustrative examples for each NAICS code, size standards the SBA's. An activity Census lists under a retired code and a code in use names only the code in use. Search NAICS codes

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