NAICS Codes by Business Activity: M (Meteorological to Myrobalans)
Activities 578–1,153 of 1,153
| Business activity | NAICS code | Size standard |
|---|---|---|
| Meteorological instruments manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Meteorological services | 541990 All Other Professional, Scientific, and Technical Services | $19.5 million in average annual receipts |
| Meter reading services, contract | 561990 All Other Support Services | $16.5 million in average annual receipts |
| Metering devices (except electrical and industrial process control) manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Metering panels, electric, manufacturing | 335313 Switchgear and Switchboard Apparatus Manufacturing | 1,250 employees |
| Meters (except electrical and industrial process control) manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Meters (except electrical, parking) merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Meters, electrical (i.e., graphic recording, panelboard, pocket, portable), manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Meters, electrical, merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Meters, industrial process control-type, manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Meters, parking, manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Meters, parking, merchant wholesalers | 423850 Service Establishment Equipment and Supplies Merchant Wholesalers | 125 employees |
| Meters, power factor and phase angle, manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Methoxychlor insecticides manufacturing | 325320 Pesticide and Other Agricultural Chemical Manufacturing | 1,150 employees |
| Methyl acetone manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Methyl acrylate resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Methyl alcohol (i.e., methanol), synthetic, manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Methyl alcohol (methanol), natural, manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Methyl cellulose resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Methyl chloride manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Methyl methacrylate resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Methyl perhydrofluorine manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Methyl salicylate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Methyl violet toners manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Methylamine manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Methylene chloride manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Mexican foods canning | 311422 Specialty Canning | 1,400 employees |
| Mexican foods, frozen, manufacturing | 311412 Frozen Specialty Food Manufacturing | 1,250 employees |
| Mica mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Mica processing beyond beneficiation | 327992 Ground or Treated Mineral and Earth Manufacturing | 600 employees |
| Mica products manufacturing | 327999 All Other Miscellaneous Nonmetallic Mineral Product Manufacturing | 750 employees |
| Mica schist crushed and broken stone mining and/or beneficiating | 212319 Other Crushed and Broken Stone Mining and Quarrying | 550 employees |
| Mica schist mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Micro and macro premixes, livestock, manufacturing | 311119 Other Animal Food Manufacturing | 650 employees |
| Micro-lithography equipment, semiconductor, manufacturing | 333242 Semiconductor Machinery Manufacturing | 1,500 employees |
| Microbiology instruments manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Microbiology, virology, and serology in-vitro diagnostic substances manufacturing | 325413 In-Vitro Diagnostic Substance Manufacturing | 1,250 employees |
| Microcomputers manufacturing | 334111 Electronic Computer Manufacturing | 1,250 employees |
| Microcontroller chip manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Microfiche equipment (e.g., cameras, projectors, readers) manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Microfiche recording and imaging services | 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | $40 million in average annual receipts |
| Microfilm equipment (e.g., cameras, projectors, readers) manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Microfilm equipment and supplies merchant wholesalers | 423420 Office Equipment Merchant Wholesalers | 200 employees |
| Microfilm recording and imaging services | 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | $40 million in average annual receipts |
| Microlite mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Micrometers, machinist's precision tools, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Microphones manufacturing | 334310 Audio and Video Equipment Manufacturing | 750 employees |
| Microprobes (e.g., electron, ion, laser, X-ray) manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Microprocessor chip manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Microscopes (except electron, proton) manufacturing | 333314 Optical Instrument and Lens Manufacturing | 500 employees |
| Microscopes, electron and proton, manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Microtunneling contractors | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Microwave communications equipment manufacturing | 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 1,250 employees |
| Microwave components manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Microwave oven, household-type, repair and maintenance services, without retailing new microwave ovens | 811412 Appliance Repair and Maintenance | $19 million in average annual receipts |
| Microwave ovens (including portable), household-type, manufacturing | 335220 Major Household Appliance Manufacturing | 1,500 employees |
| Microwave ovens, commercial-type, manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Microwave relay tower construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Microwave telecommunication resellers | 517911 Telecommunications Resellers | 1,500 employees |
| Microwave test equipment manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Microwaveware, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Middies cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Middies, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Middies, women's, girls' and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Middies, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Middies, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315232 Women's and Girls' Cut and Sew Blouse and Shirt Manufacturing | — |
| Middle schools | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Midwives' offices (e.g., centers, clinics) | 621399 Offices of All Other Miscellaneous Health Practitioners | $10 million in average annual receipts |
| Migrant workers' camps | 721310 Rooming and Boarding Houses, Dormitories, and Workers' Camps | $14 million in average annual receipts |
| Military academies, college level | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Military academies, elementary or secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Military bases and camps | 928110 National Security | — |
| Military dress uniforms cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Military dress uniforms, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Military dress uniforms, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Military dress uniforms, tailored, women's and girls', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Military dress uniforms, tailored, women's, misses' and girls', cut and sewn from purchased fabric (except apparel contractors) | 315234 Women's and Girls' Cut and Sew Suit, Coat, Tailored Jacket, and Skirt Manufacturing | — |
| Military dress uniforms, women's, cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Military insignia, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Military insignia, textile, manufacturing | 314999 All Other Miscellaneous Textile Product Mills | 550 employees |
| Military museums | 712110 Museums | $34 million in average annual receipts |
| Military police | 928110 National Security | — |
| Military reserve armories and bases | 928110 National Security | — |
| Military service academies (college) | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Military training schools (except academies) | 928110 National Security | — |
| Military vehicles (except trucks) merchant wholesalers | 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers | 175 employees |
| Milk based drinks (except dietary) manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk based drinks, dietary, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Milk carton board made in paperboard mills | 322130 Paperboard Mills | 1,250 employees |
| Milk carton board stock made from purchased paperboard | 322220 Paper Bag and Coated and Treated Paper Manufacturing | 750 employees |
| Milk drink, chocolate, manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk hauling, local | 484220 Specialized Freight (except Used Goods) Trucking, Local | $34 million in average annual receipts |
| Milk pasteurizing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk processing (e.g., bottling, homogenizing, pasteurizing, vitaminizing) manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk processing (except farm-type) machinery manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Milk production, dairy cattle | 112120 Dairy Cattle and Milk Production | $3.8 million in average annual receipts |
| Milk substitutes manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk testing for butterfat and milk solids | 115210 Support Activities for Animal Production | $11 million in average annual receipts |
| Milk, acidophilus, manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk, canned or dried, merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Milk, concentrated, condensed, dried, evaporated, and powdered, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Milk, fluid (except canned), manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Milk, fluid (except canned), merchant wholesalers | 424430 Dairy Product (except Dried or Canned) Merchant Wholesalers | 200 employees |
| Milk, malted, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Milk, powdered, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Milk, ultra-high temperature, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Milking dairy cattle | 112120 Dairy Cattle and Milk Production | $3.8 million in average annual receipts |
| Milking dairy goat | 112420 Goat Farming | $2.5 million in average annual receipts |
| Milking dairy sheep | 112410 Sheep Farming | $3.5 million in average annual receipts |
| Milking machinery and equipment merchant wholesalers | 423820 Farm and Garden Machinery and Equipment Merchant Wholesalers | 125 employees |
| Milking machines manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Milkshake mixes manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Mill menders, contract, woven fabrics | 314999 All Other Miscellaneous Textile Product Mills | 550 employees |
| Mill strapping for textile mills, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Mill supplies merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Millinery cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Millinery cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Millinery merchant wholesalers | 424330 Women's, Children's, and Infants' Clothing and Accessories Merchant Wholesalers | 100 employees |
| Millinery supplies merchant wholesalers | 424310 Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers | 100 employees |
| Millinery trimmings cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Millinery trimmings cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Millinery trimmings, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Millinery trimmings, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Millinery, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Millinery, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Milling machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Milling rice | 311212 Rice Milling | 750 employees |
| Millstones mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Millwork installation | 238350 Finish Carpentry Contractors | $19 million in average annual receipts |
| Millwork merchant wholesalers | 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers | 150 employees |
| Millwork, custom architectural, manufacturing | 337212 Custom Architectural Woodwork and Millwork Manufacturing | 500 employees |
| Millwork, treating | 321114 Wood Preservation | 550 employees |
| Millwrights | 238290 Other Building Equipment Contractors | $22 million in average annual receipts |
| Milo farming, field and seed production | 111199 All Other Grain Farming | $2.3 million in average annual receipts |
| Mime theaters | 711110 Theater Companies and Dinner Theaters | $25 million in average annual receipts |
| Mine conveyors manufacturing | 333922 Conveyor and Conveying Equipment Manufacturing | 500 employees |
| Mine development (except site preparation and related construction contractor activities) for metal mining on a contract basis | 213114 Support Activities for Metal Mining | $41 million in average annual receipts |
| Mine development for nonmetallic minerals mining (except fuels) on a contract basis | 213115 Support Activities for Nonmetallic Minerals (except Fuels) Mining | $20.5 million in average annual receipts |
| Mine loading and discharging station construction | 236210 Industrial Building Construction | $45 million in average annual receipts |
| Mine props, treating | 321114 Wood Preservation | 550 employees |
| Mine reclamation services, integrated (e.g., demolition, hazardous material removal, soil remediation) | 562910 Remediation Services | $25 million in average annual receipts |
| Mine shaft sinking services for coal mining on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Mine shaft sinking services for metal mining on a contract basis | 213114 Support Activities for Metal Mining | $41 million in average annual receipts |
| Mine shaft sinking services for nonmetallic minerals (except fuels) on a contract basis | 213115 Support Activities for Nonmetallic Minerals (except Fuels) Mining | $20.5 million in average annual receipts |
| Mine site preparation and related construction activities, construction contractors | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Mine ties, wood, treated, manufacturing | 321114 Wood Preservation | 550 employees |
| Mine tunneling services for coal mining on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Mine tunneling services for metal mining on a contract basis | 213114 Support Activities for Metal Mining | $41 million in average annual receipts |
| Mine tunneling services for nonmetallic minerals (except fuels) on a contract basis | 213115 Support Activities for Nonmetallic Minerals (except Fuels) Mining | $20.5 million in average annual receipts |
| Miner's lamps manufacturing | 335129 Other Lighting Equipment Manufacturing | 500 employees |
| Mineral colors and pigments manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Mineral feed supplements (except cat, dog) manufacturing | 311119 Other Animal Food Manufacturing | 650 employees |
| Mineral pigments, natural, mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Mineral processing and beneficiating machinery manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Mineral royalties or leases dealing (i.e., acting as a principal in dealing royalties or leases to investors) | 523910 Miscellaneous Intermediation | $47 million in average annual receipts |
| Mineral supplements, animal (except cat, dog), manufacturing | 311119 Other Animal Food Manufacturing | 650 employees |
| Mineral supplements, animal, merchant wholesalers | 424910 Farm Supplies Merchant Wholesalers | 200 employees |
| Mineral wool insulation installation | 238310 Drywall and Insulation Contractors | $19 million in average annual receipts |
| Mineral wool insulation materials manufacturing | 327993 Mineral Wool Manufacturing | 1,500 employees |
| Mineral wool products (e.g., board, insulation, tile) manufacturing | 327993 Mineral Wool Manufacturing | 1,500 employees |
| Minerals (except construction materials, petroleum) merchant wholesalers | 423520 Coal and Other Mineral and Ore Merchant Wholesalers | 200 employees |
| Mines, ammunition, manufacturing | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Mini-mills, steel | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Miniature golf courses | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Miniblinds manufacturing | 337920 Blind and Shade Manufacturing | 1,000 employees |
| Minicomputers manufacturing | 334111 Electronic Computer Manufacturing | 1,250 employees |
| Minimum wage program administration | 926150 Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors | — |
| Mining associations | 813910 Business Associations | $15.5 million in average annual receipts |
| Mining cars manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Mining cranes merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Mining engineering services | 541330 Engineering Services | $25.5 million in average annual receipts |
| Mining locomotives and parts manufacturing | 336510 Railroad Rolling Stock Manufacturing | 1,500 employees |
| Mining machinery and equipment (except petroleum) merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Mining machinery and equipment rental or leasing | 532412 Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Mining machinery and equipment repair and maintenance services | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $12.5 million in average annual receipts |
| Mining machinery and equipment, petroleum, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Mining property leasing | 531190 Lessors of Other Real Estate Property | $34 million in average annual receipts |
| Minivans assembling on chassis of own manufacture | 336112 Light Truck and Utility Vehicle Manufacturing | 1,500 employees |
| Miniwarehouse rental or leasing | 531130 Lessors of Miniwarehouses and Self-Storage Units | $34 million in average annual receipts |
| Mink production | 112930 Fur-Bearing Animal and Rabbit Production | $3.8 million in average annual receipts |
| Minnow production, farm raising | 112511 Finfish Farming and Fish Hatcheries | $3.8 million in average annual receipts |
| Minor league baseball clubs | 711211 Sports Teams and Clubs | $47 million in average annual receipts |
| Mint farming | 111998 All Other Miscellaneous Crop Farming | $2.5 million in average annual receipts |
| Mirror installation | 238150 Glass and Glazing Contractors | $19 million in average annual receipts |
| Mirrors (except automotive) merchant wholesalers | 423220 Home Furnishing Merchant Wholesalers | 100 employees |
| Mirrors, automotive, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Mirrors, framed (except automotive) or unframed, made from purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Mirrors, optical, manufacturing | 333314 Optical Instrument and Lens Manufacturing | 500 employees |
| Missile facility construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Missile warheads manufacturing | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Missing person tracing services | 561611 Investigation and Personal Background Check Services | $25 million in average annual receipts |
| Missions, religious organization | 813110 Religious Organizations | $13 million in average annual receipts |
| Miter boxes manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Mittens (e.g., leather, woven or knit) cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Mittens cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Mittens, knit, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Mittens, leather (except apparel contractors), manufacturing | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Mittens, leather, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Mittens, leather, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Mittens, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Mittens, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Mittens, woven or knit, cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Mittens, woven or knit, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Mittens, woven or knit, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Mix grain breakfast manufacturing | 311230 Breakfast Cereal Manufacturing | 1,300 employees |
| Mix, ice cream, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Mixed drinks, alcoholic, manufacturing | 312140 Distilleries | 1,100 employees |
| Mixed hay farming | 111940 Hay Farming | $2.5 million in average annual receipts |
| Mixed mode transit systems (e.g., bus, commuter rail, subway combinations) | 485111 Mixed Mode Transit Systems | $29 million in average annual receipts |
| Mixers, concrete, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Mixes (e.g., cake, dessert, pie) merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Mixes, flour (e.g., biscuit, cake, doughnut, pancake) made in flour mills | 311211 Flour Milling | 1,050 employees |
| Mixes, flour (e.g., biscuit, cake, doughnut, pancake), made from purchased flour | 311824 Dry Pasta, Dough, and Flour Mixes Manufacturing from Purchased Flour | 850 employees |
| Mixing purchased fertilizer materials | 325314 Fertilizer (Mixing Only) Manufacturing | 550 employees |
| Mobile (manufactured) home parks | 531190 Lessors of Other Real Estate Property | $34 million in average annual receipts |
| Mobile (manufactured) home site rental or leasing | 531190 Lessors of Other Real Estate Property | $34 million in average annual receipts |
| Mobile (manufactured) home, on site, rental or leasing | 531110 Lessors of Residential Buildings and Dwellings | $34 million in average annual receipts |
| Mobile breast imaging centers | 621512 Diagnostic Imaging Centers | $19 million in average annual receipts |
| Mobile car and truck washes | 811192 Car Washes | $9 million in average annual receipts |
| Mobile communications equipment manufacturing | 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 1,250 employees |
| Mobile feed mill | 311119 Other Animal Food Manufacturing | 650 employees |
| Mobile food stands | 722330 Mobile Food Services | $9 million in average annual receipts |
| Mobile home dealers, manufactured | 453930 Manufactured (Mobile) Home Dealers | $16.5 million in average annual receipts |
| Mobile home manufacturing | 321991 Manufactured Home (Mobile Home) Manufacturing | 1,250 employees |
| Mobile home rental (except on site) | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Mobile home towing services, local | 484220 Specialized Freight (except Used Goods) Trucking, Local | $34 million in average annual receipts |
| Mobile home towing services, long-distance | 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance | $34 million in average annual receipts |
| Mobile museums | 712110 Museums | $34 million in average annual receipts |
| Mobile soup kitchens | 624210 Community Food Services | $19.5 million in average annual receipts |
| Mobile straddle carriers manufacturing | 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 900 employees |
| Mobile telephone communication carriers, except satellite | 517312 Wireless Telecommunications Carriers (except Satellite) | 1,500 employees |
| Mobile X-ray facilities (medical) | 621512 Diagnostic Imaging Centers | $19 million in average annual receipts |
| Moccasins manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Modacrylic fibers and filaments manufacturing | 325220 Artificial and Synthetic Fibers and Filaments Manufacturing | 1,050 employees |
| Modacrylic spun yarns made from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Model kits manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Model kits merchant wholesalers | 423920 Toy and Hobby Goods and Supplies Merchant Wholesalers | 175 employees |
| Model railroad manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Model registries | 561311 Employment Placement Agencies | $34 million in average annual receipts |
| Model supply services | 561320 Temporary Help Services | $34 million in average annual receipts |
| Modeling agents | 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures | $17.5 million in average annual receipts |
| Modeling clay manufacturing | 339940 Office Supplies (except Paper) Manufacturing | 750 employees |
| Modeling schools | 611519 Other Technical and Trade Schools | $21 million in average annual receipts |
| Models' agents or managers | 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures | $17.5 million in average annual receipts |
| Models, anatomical, manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Models, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Models, toy and hobby (e.g., airplane, boat, ship), manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Modems merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Modems, carrier equipment, manufacturing | 334210 Telephone Apparatus Manufacturing | 1,250 employees |
| Modern dance companies | 711120 Dance Companies | $18 million in average annual receipts |
| Modular furniture system attachment and installation | 238390 Other Building Finishing Contractors | $19 million in average annual receipts |
| Modular furniture systems (except wood frame), office-type, manufacturing | 337214 Office Furniture (except Wood) Manufacturing | 1,100 employees |
| Modular furniture systems, wood frame office-type, manufacturing | 337211 Wood Office Furniture Manufacturing | 1,000 employees |
| Modular house assembly on site by general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Modular housing, residential, assembled on site by for-sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Modules for clocks and watches manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Mohair farming | 112420 Goat Farming | $2.5 million in average annual receipts |
| Mohair yarn twisting or winding of purchased yarn | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Mohair, raw, merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Moisture analyzers, laboratory-type, manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Moisture meters, industrial process-type, manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Molasses made from purchased raw cane sugar | 311312 Cane Sugar Refining | — |
| Molasses made from sugar beets | 311313 Beet Sugar Manufacturing | 1,150 employees |
| Molasses made in sugarcane mill | 311311 Sugarcane Mills | — |
| Molasses manufacturing | 311314 Cane Sugar Manufacturing | 1,050 employees |
| Molasses merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Molasses, blackstrap, made from purchased raw cane sugar | 311312 Cane Sugar Refining | — |
| Molasses, blackstrap, made in sugarcane mill | 311311 Sugarcane Mills | — |
| Molasses, blackstrap, manufacturing | 311314 Cane Sugar Manufacturing | 1,050 employees |
| Molded packings and seals manufacturing | 339991 Gasket, Packing, and Sealing Device Manufacturing | 600 employees |
| Molded pulp products (e.g., egg cartons, food containers, food trays) manufacturing | 322299 All Other Converted Paper Product Manufacturing | 500 employees |
| Molding (e.g., sheet metal, wood) merchant wholesalers | 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers | 150 employees |
| Molding and trim (except motor vehicle), metal, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Molding or trim, wood or plastic, installation | 238350 Finish Carpentry Contractors | $19 million in average annual receipts |
| Molding sand quarrying and/or beneficiating | 212322 Industrial Sand Mining | 750 employees |
| Moldings and trim, motor vehicle, stamping | 336370 Motor Vehicle Metal Stamping | 1,000 employees |
| Moldings, clear and finger joint wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Moldings, wood and covered wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Molds (except steel ingot), industrial, manufacturing | 333511 Industrial Mold Manufacturing | 500 employees |
| Molds for casting steel ingots manufacturing | 331511 Iron Foundries | 1,000 employees |
| Molds for forming materials (e.g., glass, plastics, rubber) manufacturing | 333511 Industrial Mold Manufacturing | 500 employees |
| Molds for metal casting (except steel ingot) manufacturing | 333511 Industrial Mold Manufacturing | 500 employees |
| Molds for plastics and rubber working machinery manufacturing | 333511 Industrial Mold Manufacturing | 500 employees |
| Molds, steel ingot, industrial, manufacturing | 331511 Iron Foundries | 1,000 employees |
| Mollusk production, farm raising | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Molybdenite mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Molybdenum and molybdenum alloy bar, plate, pipe, rod, sheet, tubing, and wire made from purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Molybdenum ores mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Molybdenum rolling, drawing, or extruding purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Molybdenum silicon ferroalloys manufacturing | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Molybdite mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Monasteries (except schools) | 813110 Religious Organizations | $13 million in average annual receipts |
| Monazite mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Monetary authorities, central bank | 521110 Monetary Authorities-Central Bank | — |
| Money chests, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Money market mutual funds, closed-end | 525990 Other Financial Vehicles | $40 million in average annual receipts |
| Money market mutual funds, open-ended | 525910 Open-End Investment Funds | $40 million in average annual receipts |
| Money order issuance services | 522390 Other Activities Related to Credit Intermediation | $28.5 million in average annual receipts |
| Money transmission services | 522390 Other Activities Related to Credit Intermediation | $28.5 million in average annual receipts |
| Monitors, computer peripheral equipment, manufacturing | 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing | 1,000 employees |
| Monochlorodifluoromethane manufacturing | 325120 Industrial Gas Manufacturing | 1,200 employees |
| Monochrometers, laboratory-type, manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Monolithic integrated circuits (solid-state) manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Monomethylparaminophenol sulfate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Monorail construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Monorail systems (except passenger-type) manufacturing | 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 1,250 employees |
| Monorail transit systems (except mixed mode), commuter | 485119 Other Urban Transit Systems | $37.5 million in average annual receipts |
| Monorail, scenic and sightseeing, operation | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Monosodium glutamate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Montessori schools, elementary or secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Monument (i.e., building) construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Monument (i.e., burial marker) dealers | 453998 All Other Miscellaneous Store Retailers (except Tobacco Stores) | $10 million in average annual receipts |
| Monuments and grave markers merchant wholesalers | 423990 Other Miscellaneous Durable Goods Merchant Wholesalers | 100 employees |
| Monuments and tombstone, cut stone (except finishing or lettering to order only), manufacturing | 327991 Cut Stone and Stone Product Manufacturing | 500 employees |
| Mop wringers manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Moped dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Moped merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Moped rental | 532284 Recreational Goods Rental | $9 million in average annual receipts |
| Mopeds and parts manufacturing | 336991 Motorcycle, Bicycle, and Parts Manufacturing | 1,050 employees |
| Mops, floor and dust, manufacturing | 339994 Broom, Brush, and Mop Manufacturing | 750 employees |
| Mordant dyes manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Mordants manufacturing | 325613 Surface Active Agent Manufacturing | 1,100 employees |
| Morphine and derivatives (i.e., basic chemicals) manufacturing | 325411 Medicinal and Botanical Manufacturing | 1,000 employees |
| Morris Plans (i.e., known as), depository | 522190 Other Depository Credit Intermediation | $750 million in assets |
| Morris Plans (i.e., known as), nondepository | 522298 All Other Nondepository Credit Intermediation | $41.5 million in average annual receipts |
| Mortar mixers, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Mortar shells manufacturing | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Mortar, nonclay refractory, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Mortars manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Mortars, clay refractory, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Mortgage banking (i.e., nondepository mortgage lending) | 522292 Real Estate Credit | $47 million in average annual receipts |
| Mortgage brokerages | 522310 Mortgage and Nonmortgage Loan Brokers | $15 million in average annual receipts |
| Mortgage brokers' or agents' offices (i.e., independent) | 522310 Mortgage and Nonmortgage Loan Brokers | $15 million in average annual receipts |
| Mortgage companies | 522292 Real Estate Credit | $47 million in average annual receipts |
| Mortgage guaranty insurance carriers, direct | 524126 Direct Property and Casualty Insurance Carriers | 1,500 employees |
| Mortgage real estate investment trusts (REITs) | 525990 Other Financial Vehicles | $40 million in average annual receipts |
| Mortician services | 812210 Funeral Homes and Funeral Services | $12.5 million in average annual receipts |
| Mortisers, woodworking-type, manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Mortuaries | 812210 Funeral Homes and Funeral Services | $12.5 million in average annual receipts |
| MOS (metal oxide silicon) devices manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Mosaic tile, ceramic, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Mosaic work | 238340 Tile and Terrazzo Contractors | $19 million in average annual receipts |
| Mosques, religious | 813110 Religious Organizations | $13 million in average annual receipts |
| Mosquito eradication districts | 926130 Regulation and Administration of Communications, Electric, Gas, and Other Utilities | — |
| Mosquito eradication services | 561710 Exterminating and Pest Control Services | $17.5 million in average annual receipts |
| Moss gathering | 113210 Forest Nurseries and Gathering of Forest Products | $20.5 million in average annual receipts |
| Motel building, not operating motel, rental or leasing | 531120 Lessors of Nonresidential Buildings (except Miniwarehouses) | $34 million in average annual receipts |
| Motel construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Motel management services (except complete operation of client's business) | 561110 Office Administrative Services | $12.5 million in average annual receipts |
| Motels | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Moth repellants manufacturing | 325320 Pesticide and Other Agricultural Chemical Manufacturing | 1,150 employees |
| Mother boards merchant wholesalers | 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers | 250 employees |
| Motion alarms (e.g., swimming pool, perimeter) manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Motion detectors, security system, manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Motion picture and video production | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Motion picture and video production and distribution | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Motion picture animation, post-production | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Motion picture booking agencies | 512199 Other Motion Picture and Video Industries | $28.5 million in average annual receipts |
| Motion picture cameras manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Motion picture cameras, equipment, and supplies merchant wholesalers | 423410 Photographic Equipment and Supplies Merchant Wholesalers | 200 employees |
| Motion picture consulting services | 541690 Other Scientific and Technical Consulting Services | $19 million in average annual receipts |
| Motion picture directors, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Motion picture distribution exclusive of production | 512120 Motion Picture and Video Distribution | $39 million in average annual receipts |
| Motion picture equipment rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Motion picture exhibition | 512131 Motion Picture Theaters (except Drive-Ins) | $47 million in average annual receipts |
| Motion picture exhibitors for airlines | 512131 Motion Picture Theaters (except Drive-Ins) | $47 million in average annual receipts |
| Motion picture exhibitors, itinerant | 512131 Motion Picture Theaters (except Drive-Ins) | $47 million in average annual receipts |
| Motion picture film distributors | 512120 Motion Picture and Video Distribution | $39 million in average annual receipts |
| Motion picture film laboratories | 512199 Other Motion Picture and Video Industries | $28.5 million in average annual receipts |
| Motion picture film libraries | 512120 Motion Picture and Video Distribution | $39 million in average annual receipts |
| Motion picture film libraries, archives | 519120 Libraries and Archives | $18.5 million in average annual receipts |
| Motion picture film libraries, stock footage | 512199 Other Motion Picture and Video Industries | $28.5 million in average annual receipts |
| Motion picture film manufacturing | 325992 Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing | 1,500 employees |
| Motion picture film reproduction for theatrical distribution | 512199 Other Motion Picture and Video Industries | $28.5 million in average annual receipts |
| Motion picture laboratories | 512199 Other Motion Picture and Video Industries | $28.5 million in average annual receipts |
| Motion picture or video editing services | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Motion picture or video post-production services | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Motion picture or video titling | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Motion picture producers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Motion picture production | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Motion picture production and distribution | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Motion picture production special effects, post-production | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Motion picture projectors manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Motion picture studios, producing motion pictures | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Motion picture theaters, drive-in | 512132 Drive-In Motion Picture Theaters | $12.5 million in average annual receipts |
| Motion picture theaters, indoor | 512131 Motion Picture Theaters (except Drive-Ins) | $47 million in average annual receipts |
| Motion picture wardrobe and costume rental | 532281 Formal Wear and Costume Rental | $25 million in average annual receipts |
| Motivational speakers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Motor carrier licensing and inspection offices | 926120 Regulation and Administration of Transportation Programs | — |
| Motor coach operation, interurban and rural | 485210 Interurban and Rural Bus Transportation | $32 million in average annual receipts |
| Motor control accessories (including overload relays) manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Motor control centers, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Motor controls, electric, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Motor controls, electric, merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Motor courts | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Motor freight carrier, general, local | 484110 General Freight Trucking, Local | $34 million in average annual receipts |
| Motor freight carrier, general, long-distance, less-than-truckload (LTL) | 484122 General Freight Trucking, Long-Distance, Less Than Truckload | $43 million in average annual receipts |
| Motor freight carrier, general, long-distance, truckload (TL) | 484121 General Freight Trucking, Long-Distance, Truckload | $34 million in average annual receipts |
| Motor freight carrier, used household goods | 484210 Used Household and Office Goods Moving | $34 million in average annual receipts |
| Motor generator sets (except automotive, turbine generator sets) manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Motor generator sets, turbo generators, manufacturing | 333611 Turbine and Turbine Generator Set Units Manufacturing | 1,500 employees |
| Motor home dealers | 441210 Recreational Vehicle Dealers | $40 million in average annual receipts |
| Motor home merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Motor home rental | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Motor homes, self-contained, assembling on purchased chassis | 336213 Motor Home Manufacturing | 1,250 employees |
| Motor homes, self-contained, mounted on heavy truck chassis of own manufacture | 336120 Heavy Duty Truck Manufacturing | 1,500 employees |
| Motor homes, self-contained, mounted on light duty truck chassis of own manufacture | 336112 Light Truck and Utility Vehicle Manufacturing | 1,500 employees |
| Motor hotels without casinos | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Motor inns | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Motor lodges | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Motor oils, petroleum, made from refined petroleum | 324191 Petroleum Lubricating Oil and Grease Manufacturing | 900 employees |
| Motor oils, synthetic, manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Motor repair and maintenance services, commercial or industrial | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $12.5 million in average annual receipts |
| Motor scooters dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Motor scooters manufacturing | 336991 Motorcycle, Bicycle, and Parts Manufacturing | 1,050 employees |
| Motor starters, contractors, and controllers, industrial, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Motor travel clubs | 561599 All Other Travel Arrangement and Reservation Services | $32.5 million in average annual receipts |
| Motor truck scales manufacturing | 333997 Scale and Balance Manufacturing | 500 employees |
| Motor vehicle assembly plant construction | 236210 Industrial Building Construction | $45 million in average annual receipts |
| Motor vehicle belts, rubber or plastics, manufacturing | 326220 Rubber and Plastics Hoses and Belting Manufacturing | 800 employees |
| Motor vehicle garage and service station mechanical equipment (e.g., gasoline pumps, hoists) installation | 238290 Other Building Equipment Contractors | $22 million in average annual receipts |
| Motor vehicle hardware, metal, manufacturing | 332510 Hardware Manufacturing | 750 employees |
| Motor vehicle hoses, rubber or plastics, manufacturing | 326220 Rubber and Plastics Hoses and Belting Manufacturing | 800 employees |
| Motor vehicle instruments (e.g., fuel level gauges, oil pressure, speedometers, tachometers, water temperature) manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Motor vehicle instruments, electric, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Motor vehicle interior systems (e.g., headliners, panels, seats, trims) manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Motor vehicle license issuing services, private franchise | 561990 All Other Support Services | $16.5 million in average annual receipts |
| Motor vehicle licensing offices, government | 926120 Regulation and Administration of Transportation Programs | — |
| Motor vehicle merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Motor vehicle metal bumper stampings | 336370 Motor Vehicle Metal Stamping | 1,000 employees |
| Motor vehicle metal parts stamping | 336370 Motor Vehicle Metal Stamping | 1,000 employees |
| Motor vehicle metal stampings (e.g., body parts, fenders, hub caps, tops, trim) manufacturing | 336370 Motor Vehicle Metal Stamping | 1,000 employees |
| Motor vehicle moldings and extrusions, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Motor vehicle paints manufacturing | 325510 Paint and Coating Manufacturing | 1,000 employees |
| Motor vehicle parts and accessories, new, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Motor vehicle parts, used, merchant wholesalers | 423140 Motor Vehicle Parts (Used) Merchant Wholesalers | 125 employees |
| Motor vehicle seats manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Motor vehicle seats, metal framed, manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Motor vehicle tire and tube merchant wholesalers | 423130 Tire and Tube Merchant Wholesalers | 200 employees |
| Motor vehicle tires manufacturing | 326211 Tire Manufacturing (except Retreading) | 1,500 employees |
| Motor vehicle towing services | 488410 Motor Vehicle Towing | $9 million in average annual receipts |
| Motor vehicle trimmings manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Motorbike dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Motorboat (i.e., inboard and outboard) repair and maintenance services | 811490 Other Personal and Household Goods Repair and Maintenance | $9 million in average annual receipts |
| Motorboat, inboard or outboard, building | 336612 Boat Building | 1,000 employees |
| Motorcycle dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Motorcycle merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Motorcycle parts and accessories dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Motorcycle parts, new, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Motorcycle racetracks | 711212 Racetracks | $47 million in average annual receipts |
| Motorcycle racing teams | 711219 Other Spectator Sports | $16.5 million in average annual receipts |
| Motorcycle rental | 532284 Recreational Goods Rental | $9 million in average annual receipts |
| Motorcycle repair shops without retailing new motorcycles | 811490 Other Personal and Household Goods Repair and Maintenance | $9 million in average annual receipts |
| Motorcycles and parts manufacturing | 336991 Motorcycle, Bicycle, and Parts Manufacturing | 1,050 employees |
| Motorized passenger golf carts merchant wholesalers | 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers | 175 employees |
| Motors, electric (except engine starting motors, gearmotors, outboard), manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Motors, electric, merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Motors, fluid power, manufacturing | 333996 Fluid Power Pump and Motor Manufacturing | 1,250 employees |
| Motors, gear, manufacturing | 333612 Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing | 750 employees |
| Motors, outboard, manufacturing | 333618 Other Engine Equipment Manufacturing | 1,500 employees |
| Motors, outboard, merchant wholesalers | 423910 Sporting and Recreational Goods and Supplies Merchant Wholesalers | 100 employees |
| Motors, starter, for internal combustion engines, manufacturing | 336320 Motor Vehicle Electrical and Electronic Equipment Manufacturing | 1,000 employees |
| Mountain hiking, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Mounting merchandise on cards | 561910 Packaging and Labeling Services | $19.5 million in average annual receipts |
| Mouse devices, computer peripheral equipment, manufacturing | 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing | 1,000 employees |
| Mouse hole and rat hole drilling at oil and gas fields on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Mouthpieces for musical instruments manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Mouthwashes (except medicinal) manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Mouthwashes, medicated, manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Movements, watch or clock, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Movie production and distribution | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Movie theaters (except drive-in) | 512131 Motion Picture Theaters (except Drive-Ins) | $47 million in average annual receipts |
| Movie theaters, drive-in | 512132 Drive-In Motion Picture Theaters | $12.5 million in average annual receipts |
| Moving sidewalk installation | 238290 Other Building Equipment Contractors | $22 million in average annual receipts |
| Mowing services (e.g., highway, lawn, road strip) | 561730 Landscaping Services | $9.5 million in average annual receipts |
| MRF (materials recovery facilities) | 562920 Materials Recovery Facilities | $25 million in average annual receipts |
| MRI (magnetic resonance imaging) centers | 621512 Diagnostic Imaging Centers | $19 million in average annual receipts |
| MRI (magnetic resonance imaging) medical diagnostic equipment manufacturing | 334510 Electromedical and Electrotherapeutic Apparatus Manufacturing | 1,250 employees |
| Mucilage adhesives manufacturing | 325520 Adhesive Manufacturing | 550 employees |
| Mud service for oil field drilling on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Mud-jacking contractors | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Muffler repair and replacement shops | 811112 Automotive Exhaust System Repair | $8 million in average annual receipts |
| Mufflers and resonators, automotive, truck, and buses manufacturing | 336390 Other Motor Vehicle Parts Manufacturing | 1,000 employees |
| Mufflers cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Mufflers cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Mufflers made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Mufflers, exhaust, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Mufflers, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Mufflers, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315993 Men's and Boys' Neckwear Manufacturing | — |
| Mufflers, women's and girls', cut and sewn from purchased fabric (except apparel contractors) | 315999 Other Apparel Accessories and Other Apparel Manufacturing | — |
| Mufflers, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Mulch merchant wholesalers | 424910 Farm Supplies Merchant Wholesalers | 200 employees |
| Mulchers, lawn and garden-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Mule production | 112920 Horses and Other Equine Production | $2.8 million in average annual receipts |
| Mules merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Mullet fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Multichannel multipoint distribution services (MMDS) | 517311 Wired Telecommunications Carriers | 1,500 employees |
| Multidisciplinary museums | 712110 Museums | $34 million in average annual receipts |
| Multifamily building construction general contractors | 236116 New Multifamily Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Multifamily building for-sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Multimeters manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Multiplex equipment, telephone, manufacturing | 334210 Telephone Apparatus Manufacturing | 1,250 employees |
| Multiservice centers, neighborhood | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Muriate of potash, mining | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Muscle relaxant preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Muscovite mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Museum construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Museums | 712110 Museums | $34 million in average annual receipts |
| Mushroom farming | 111411 Mushroom Production | $4.5 million in average annual receipts |
| Mushroom spawn farming | 111411 Mushroom Production | $4.5 million in average annual receipts |
| Mushrooms canning | 311421 Fruit and Vegetable Canning | 1,000 employees |
| Music archives | 519120 Libraries and Archives | $18.5 million in average annual receipts |
| Music arrangers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Music book (i.e., bound sheet music) publishers | 512230 Music Publishers | 900 employees |
| Music book (i.e., bound sheet music) publishers and printing combined | 512230 Music Publishers | 900 employees |
| Music books printing or printing and binding without publishing | 323117 Books Printing | 1,250 employees |
| Music boxes manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Music copyright authorizing use | 512230 Music Publishers | 900 employees |
| Music copyright buying and licensing | 512230 Music Publishers | 900 employees |
| Music directors, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Music festival managers with facilities | 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities | $40 million in average annual receipts |
| Music festival managers without facilities | 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities | $22 million in average annual receipts |
| Music festival organizers with facilities | 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities | $40 million in average annual receipts |
| Music festival organizers without facilities | 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities | $22 million in average annual receipts |
| Music festival promoters with facilities | 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities | $40 million in average annual receipts |
| Music festival promoters without facilities | 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities | $22 million in average annual receipts |
| Music instruction (e.g., guitar, piano) | 611610 Fine Arts Schools | $9 million in average annual receipts |
| Music program distribution (except exclusively on Internet), radio | 515112 Radio Stations | $41.5 million in average annual receipts |
| Music program distribution, cable or satellite | 517311 Wired Telecommunications Carriers | 1,500 employees |
| Music program distribution, pre-recorded | 512290 Other Sound Recording Industries | $22.5 million in average annual receipts |
| Music publishers | 512230 Music Publishers | 900 employees |
| Music rolls, perforated, manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Music schools (except academic) | 611610 Fine Arts Schools | $9 million in average annual receipts |
| Music stores (e.g., cassette, compact disc, record, tape) | 443142 Electronics Stores | $35 million in average annual receipts |
| Music stores (e.g., cassette, instrument, record, tape), used | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Music stores (i.e., instrument) | 451140 Musical Instrument and Supplies Stores | $20 million in average annual receipts |
| Music therapists' offices (e.g., centers, clinics) | 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists | $12.5 million in average annual receipts |
| Music video production | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Music video production and distribution | 512110 Motion Picture and Video Production | $40 million in average annual receipts |
| Music, sheet, commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Music, sheet, flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Music, sheet, lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Music, sheet, merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Music, sheet, printing (except flexographic, gravure, lithographic, quick, screen) without publishing | 323119 Other Commercial Printing | — |
| Music, sheet, publishers and printing combined | 512230 Music Publishers | 900 employees |
| Music, sheet, screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| Musical artists, independent | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Musical groups (except musical theater groups) | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Musical instrument accessories (e.g., mouthpieces, reeds, stands, traps) manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Musical instrument accessories and supplies merchant wholesalers | 423990 Other Miscellaneous Durable Goods Merchant Wholesalers | 100 employees |
| Musical instrument cases, all materials, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Musical instrument rental | 532289 All Other Consumer Goods Rental | $12.5 million in average annual receipts |
| Musical instrument repair shops without retailing new musical instruments | 811490 Other Personal and Household Goods Repair and Maintenance | $9 million in average annual receipts |
| Musical instrument stores | 451140 Musical Instrument and Supplies Stores | $20 million in average annual receipts |
| Musical instruments (except toy) manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Musical instruments merchant wholesalers | 423990 Other Miscellaneous Durable Goods Merchant Wholesalers | 100 employees |
| Musical instruments, toy, manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Musical productions (except musical theater productions), live | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Musical recording, releasing, promoting, and distributing | 512250 Record Production and Distribution | 900 employees |
| Musical recordings (e.g., compact discs, records, tapes) merchant wholesalers | 423990 Other Miscellaneous Durable Goods Merchant Wholesalers | 100 employees |
| Musical theater companies or groups | 711110 Theater Companies and Dinner Theaters | $25 million in average annual receipts |
| Musical theater productions, live | 711110 Theater Companies and Dinner Theaters | $25 million in average annual receipts |
| Musicians, independent | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Muskmelon farming, field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Mussel fishing | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Mussel production, farm raising | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Mustard seed farming, field and seed production | 111120 Oilseed (except Soybean) Farming | $2.3 million in average annual receipts |
| Mustard, prepared, manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Mutual fund agencies (i.e., brokerages) | 523120 Securities Brokerage | $41.5 million in average annual receipts |
| Mutual fund agents' (i.e., brokers') offices | 523120 Securities Brokerage | $41.5 million in average annual receipts |
| Mutual fund managing | 523920 Portfolio Management | $41.5 million in average annual receipts |
| Mutual funds, closed-end | 525990 Other Financial Vehicles | $40 million in average annual receipts |
| Mutual funds, open-ended | 525910 Open-End Investment Funds | $40 million in average annual receipts |
| Mutual savings banks | 522120 Savings Institutions | $750 million in assets |
| Mycology health laboratories | 621511 Medical Laboratories | $41.5 million in average annual receipts |
| Myrobalans extract manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
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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