MAMD MEMIMO MRMUMY
Index entryNAICS
Code		U.S. NAICS Title
Macadamia farming 111335 Tree Nut Farming
Macaroni wholesaling 422490 Other Grocery and Related Products Wholesalers
Macaroni, dry, manufacturing 311823 Dry Pasta Manufacturing
Macaroni, fresh, manufacturing 311991 Perishable Prepared Food Manufacturing
Machetes manufacturing 332212 Hand and Edge Tool Manufacturing
Machine bases, metal, manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
Machine guards, sheet metal, manufacturing 332322 Sheet Metal Work Manufacturing
Machine gun belts (i.e., 30 mm. or less, 1.18 inch or less) manufacturing 332994 Small Arms Manufacturing
Machine gun belts (i.e., more than 30 mm., more than 1.18 inch) manufacturing 332995 Other Ordnance and Accessories Manufacturing
Machine guns (i.e., 30 mm. or less, 1.18 inch or less) manufacturing 332994 Small Arms Manufacturing
Machine guns (i.e., more than 30 mm., more than 1.18 inch) manufacturing 332995 Other Ordnance and Accessories Manufacturing
Machine keys manufacturing 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing
Machine knives (except metal cutting) manufacturing 332212 Hand and Edge Tool Manufacturing
Machine knives, metal cutting, manufacturing 333515 Cutting Tool and Machine Tool Accessory Manufacturing
Machine rigging construction contractors 235950 Building Equipment and Other Machinery Installation Contractors
Machine shops 332710 Machine Shops
Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing 3327 Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing
Machine tool attachments and accessories manufacturing 333515 Cutting Tool and Machine Tool Accessory Manufacturing
Machine tool transformers manufacturing 335311 Power, Distribution, and Specialty Transformer Manufacturing
Machine tools and accessories wholesaling 421830 Industrial Machinery and Equipment Wholesalers
Machine tools repair and maintenance services 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Machine tools, metal cutting, manufacturing 333512 Machine Tool (Metal Cutting Types) Manufacturing
Machine tools, metal forming, manufacturing 333513 Machine Tool (Metal Forming Types) Manufacturing
Machinery finance leasing 522220 Sales Financing
Machinery Manufacturing 333 Machinery Manufacturing
Machinery, Equipment, and Supplies Wholesalers 4218 Machinery, Equipment, and Supplies Wholesalers
Machines, office, wholesaling 421420 Office Equipment Wholesalers
Machinist's precision measuring tools (except optical) manufacturing 332212 Hand and Edge Tool Manufacturing
Machinists' precision measuring tools wholesaling 421830 Industrial Machinery and Equipment Wholesalers
Machmeters manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
Mackerel fishing 114111 Finfish Fishing
Mackinaws, infants', cut and sewn from purchased fabric (except apparel contractors) 315291 Infants' Cut and Sew Apparel Manufacturing
Mackinaws, men's and boys', cut and sew apparel contractors 315211 Men's and Boys' Cut and Sew Apparel Contractors
Mackinaws, men's and boys', cut and sewn from purchased fabric (except apparel contractors) 315228 Men's and Boys' Cut and Sew Other Outerwear Manufacturing
Mackinaws, women's, girls', and infants', cut and sew apparel contractrs 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors
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 Manufacturing
Magazine advertising representatives (i.e., independent of media owners) 541840 Media Representatives
Magazine publishers 511120 Periodical Publishers
Magazine publishers and printing combined 511120 Periodical Publishers
Magazine publishers, publishing only 511120 Periodical Publishers
Magazine publishing (i.e., establishments known as publishers) 511120 Periodical Publishers
Magazine racks, wood, manufacturing 337122 Nonupholstered Wood Household Furniture Manufacturing
Magazine stands (i.e., permanent) 451212 News Dealers and Newsstands
Magazines and periodicals flexographic printing without publishing 323112 Commercial Flexographic Printing
Magazines and periodicals gravure printing without publishing 323111 Commercial Gravure Printing
Magazines and periodicals lithographic (offset) printing without publishing 323110 Printing
Magazines and periodicals printing (except flexographic, gravure, lithographic, screen) without publishing 323119 Other Commercial Printing
Magazines and periodicals screen printing without publishing 323113 Commercial Screen Printing
Magazines wholesaling 422920 Book, Periodical, and Newspaper Wholesalers
Magic shows 711190 Other Performing Arts Companies
Magic supply stores 451120 Hobby, Toy, and Game Stores
Magicians, independent 711510 Independent Artists, Writers, and Performers
Magnesia refractory cement manufacturing 327125 Nonclay Refractory Manufacturing
Magnesia, medicinal, uncompounded, manufacturing 325411 Medicinal and Botanical Manufacturing
Magnesite mining and/or beneficiating 212325 Clay and Ceramic and Refractory Minerals Mining
Magnesite, crude (e.g., calcined, dead-burned, ground), manufacturing 327992 Ground or Treated Mineral and Earth Manufacturing
Magnesium and magnesium alloy bar, rod, shape, sheet, strip, and tubing made from purchased metals or scrap 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
Magnesium carbonate manufacturing 325188 All Other Basic Inorganic Chemical Manufacturing
Magnesium castings (except die-castings), unfinished, manufacturing 331528 Other Nonferrous Foundries (except Die-Casting)
Magnesium chloride manufacturing 325188 All Other Basic Inorganic Chemical Manufacturing
Magnesium compounds, not specified elsewhere by process, manufacturing 325188 All Other Basic Inorganic Chemical Manufacturing
Magnesium die-castings, unfinished, manufacturing 331522 Nonferrous (except Aluminum) Die-Casting Foundries
Magnesium foil made by rolling purchased metals or scrap 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
Magnesium foil not made in rolling mills 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
Magnesium recovering from scrap and/or alloying purchased metals 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
Magnesium refining, primary 331419 Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum)
Magnesium rolling, drawing, or extruding purchased metals or scrap 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
Magnet wire, insulated, made from purchased copper in wire drawing plants 331422 Copper Wire (except Mechanical) Drawing
Magnet wire, insulated, made in aluminum wire drawing plants 331319 Other Aluminum Rolling and Drawing
Magnet wire, nonferrous metals (except aluminum, copper), made from purchased nonferrous metals (except aluminum, coppe 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
Magnetic and optical media, blank, manufacturing 334613 Magnetic and Optical Recording Media Manufacturing
Magnetic counters manufacturing 334514 Totalizing Fluid Meter and Counting Device Manufacturing
Magnetic flow meters, industrial process-type, manufacturing 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variable
Magnetic forming machines, metalworking, manufacturing 333513 Machine Tool (Metal Forming Types) Manufacturing
Magnetic geophysical surveying services 541360 Geophysical Surveying and Mapping Services
Magnetic ink recognition devices, computer peripheral equipment, manufacturing 334119 Other Computer Peripheral Equipment Manufacturing
Magnetic recording media for tapes, cassettes, and disks, manufacturing 334613 Magnetic and Optical Recording Media Manufacturing
Magnetic resonance imaging (MRI) centers 621512 Diagnostic Imaging Centers
Magnetic resonance imaging (MRI) medical diagnostic equipment manufacturing 334510 Navigational, Measuring, Electromedical, and Control Instruments Manufacturing
Magnetic resonance imaging (MRI) type apparatus (except medical diagnostic) manufacturing 334516 Analytical Laboratory Instrument Manufacturing
Magnetic tapes, cassettes and disks, blank, manufacturing 334613 Magnetic and Optical Recording Media Manufacturing
Magnetic tapes, cassettes, and disks, blank, wholesaling 421690 Other Electronic Parts and Equipment Wholesalers
Magnetic/optical combination storage units for computers manufacturing 334112 Computer Storage Device Manufacturing
Magnetometers manufacturing 334519 Other Measuring and Controlling Device Manufacturing
Magnetron tubes manufacturing 334411 Electron Tube Manufacturing
Magnets, permanent, ceramic or ferrite, manufacturing 327113 Porcelain Electrical Supply Manufacturing
Magnets, permanent, metallic, manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
Magnifiers, corrective vision-type, manufacturing 339115 Ophthalmic Goods Manufacturing
Magnifying glasses (except corrective vision-type) manufacturing 333314 Optical Instrument and Lens Manufacturing
Magnifying instruments, optical, manufacturing 333314 Optical Instrument and Lens Manufacturing
Mahimahi fishing 114111 Finfish Fishing
Maid registries 561310 Employment Placement Agencies
Maid services (i.e., cleaning services) 561720 Janitorial Services
Mail carrier cases and tables, wood, manufacturing 337215 Showcase, Partition, Shelving, and Locker Manufacturing
Mail chutes, sheet metal, manufacturing 332322 Sheet Metal Work Manufacturing
Mail handling machinery, post office-type, manufacturing 333313 Office Machinery Manufacturing
Mail presorting services 561499 All Other Business Support Services
Mail-order houses 454110 Electronic Shopping and Mail-Order Houses
Mailbox rental centers, private 561431 Private Mail Centers
Mailbox rental services combined with one or more other office support services, private 561431 Private Mail Centers
Mailboxes, light gauge metal, manufacturing 332439 Other Metal Container Manufacturing
Mailing cases and tubes, paper fiber (i.e., all-fiber, nonfiber ends of any material), made from purchased paperboard 322214 Fiber Can, Tube, Drum, and Similar Products Manufacturing
Mailing equipment rental or leasing 532420 Office Machinery and Equipment Rental and Leasing
Mailing list compiling services 511140 Database and Directory Publishers
Mailing list publishers 511140 Database and Directory Publishers
Mailing machines wholesaling 421420 Office Equipment Wholesalers
Mainframe computers manufacturing 334111 Electronic Computer Manufacturing
Maintenance and repair services, aircraft (except factory conversion, factory overhaul, factory rebuilding) 488190 Other Support Activities for Air Transportation
Maintenance of plants and shrubs in buildings 561730 Landscaping Services
Maintenance of rights-of-way and structures, railway 488210 Support Activities for Rail Transportation
Maintenance services, runway 488119 Other Airport Operations
Maintenance services, waterfront terminal (except dredging) 488310 Port and Harbor Operations
Major league baseball clubs 711211 Sports Teams and Clubs
Make-up (except permanent) salons 812112 Beauty Salons
Make-up (i.e., cosmetics) manufacturing 325620 Toilet Preparation Manufacturing
Make-up salons, permanent 812199 Other Personal Care Services
Making markets for securities 523110 Investment Banking and Securities Dealing
Malacca furniture (except upholstered), household-type, manufacturing 337125 Household Furniture (except Wood and Metal) Manufacturing
Malathion insecticides manufacturing 325320 Pesticide and Other Agricultural Chemical Manufacturing
Maleic anhydride manufacturing 325192 Cyclic Crude and Intermediate Manufacturing
Mall property operation (i.e., not operating contained businesses) rental or leasing 531120 Lessors of Nonresidential Buildings (except Miniwarehouses)
Malleable iron foundries 331511 Iron Foundries
Mallets (e.g., rubber, wood) manufacturing 332212 Hand and Edge Tool Manufacturing
Mallets, wood, manufacturing 321999 All Other Miscellaneous Wood Product Manufacturing
Malonic dinitrile manufacturing 325199 All Other Basic Organic Chemical Manufacturing
Malpractice insurance carriers, direct 524126 Direct Property and Casualty Insurance Carriers
Malt extract and syrups manufacturing 311942 Spice and Extract Manufacturing
Malt extract wholesaling 422490 Other Grocery and Related Products Wholesalers
Malt flour manufacturing 311213 Malt Manufacturing
Malt liquor brewing 312120 Breweries
Malt manufacturing 311213 Malt Manufacturing
Malt milling machinery manufacturing 333294 Food Product Machinery Manufacturing
Malt sprouts manufacturing 311213 Malt Manufacturing
Malt wholesaling 422490 Other Grocery and Related Products Wholesalers
Malted milk manufacturing 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing
Malting (germinating and drying grains) 311213 Malt Manufacturing
Maltodextrins manufacturing 311221 Wet Corn Milling
Mammogram (i.e., breast imaging) centers 621512 Diagnostic Imaging Centers
Man-made fibers wholesaling 422690 Other Chemical and Allied Products Wholesalers
Management agencies for artists, entertainers, and other public figures 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures
Management development training 611430 Professional and Management Development Training
Management of Companies and Enterprises 55 Management of Companies and Enterprises
Management of Companies and Enterprises 551 Management of Companies and Enterprises
Management of Companies and Enterprises 5511 Management of Companies and Enterprises
Management services (except complete operation of client's business) 561110 Office Administrative Services
Management services, farm 115116 Farm Management Services
Management, Scientific, and Technical Consulting Services 5416 Management, Scientific, and Technical Consulting Services
Managers of agricultural fairs with facilities 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities
Managers of agricultural fairs without facilities 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities
Managers of arts events with facilities 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities
Managers of arts events without facilities 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities
Managers of festivals with facilities 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities
Managers of festivals without facilities 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities
Managers of live performing arts productions (e.g., concerts) with facilities 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities
Managers of live performing arts productions (e.g., concerts) without facilities 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities
Managers of sports events with facilities 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities
Managers of sports events without facilities 711320 Promoters of Performing Arts, Sports, and Similar Events without Facilities
Managers' offices, commercial condominium 531312 Nonresidential Property Managers
Managers' offices, commercial real estate 531312 Nonresidential Property Managers
Managers' offices, nonresidential real estate 531312 Nonresidential Property Managers
Managers' offices, residential condominium 531311 Residential Property Managers
Managers' offices, residential real estate 531311 Residential Property Managers
Managers, authors' 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures
Managers, celebrities' 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures
Managers, convention 561920 Convention and Trade Show Organizers
Managers, entertainers' 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures
Managers, pubic figures' 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures
Managers, sports figures' 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures
Managers, trade fair or show 561920 Convention and Trade Show Organizers
Managing commercial condominiums 531312 Nonresidential Property Managers
Managing commercial real estate 531312 Nonresidential Property Managers
Managing cooperative apartments 531311 Residential Property Managers
Managing investment funds 523920 Portfolio Management
Managing mutual funds 523920 Portfolio Management
Managing offices of dentists 561110 Office Administrative Services
Managing offices of physicians and surgeons 561110 Office Administrative Services
Managing offices of professionals (e.g., dentists, physicians, surgeons) 561110 Office Administrative Services
Managing personal investment trusts 523920 Portfolio Management
Managing residential condominiums 531311 Residential Property Managers
Managing residential real estate 531311 Residential Property Managers
Managing trusts 523920 Portfolio Management
Mandarin groves 111320 Citrus (except Orange) Groves
Mandolins manufacturing 339992 Musical Instrument Manufacturing
Mandrels (i.e., a machine tool accessory) manufacturing 333515 Cutting Tool and Machine Tool Accessory Manufacturing
Manganese concentrates beneficiating 212299 All Other Metal Ore Mining
Manganese dioxide manufacturing 325188 All Other Basic Inorganic Chemical Manufacturing
Manganese metal ferroalloys manufacturing 331112 Electrometallurgical Ferroalloy Product Manufacturing
Manganese ores mining and/or beneficiating 212299 All Other Metal Ore Mining
Manganiferous ores valued for iron content, mining and/or beneficiating 212210 Iron Ore Mining
Manganiferousares ores (not valued for iron content) mining and/or beneficiating 212299 All Other Metal Ore Mining
Manganite mining and/or beneficiating 212299 All Other Metal Ore Mining
Mango farming 111339 Other Noncitrus Fruit Farming
Mangrove extract manufacturing 325191 Gum and Wood Chemical Manufacturing
Manhole construction contractors 234920 Power and Communication Transmission Line Construction
Manhole covers, cast iron, manufacturing 331511 Iron Foundries
Manicure and pedicure salons 812113 Nail Salons
Manicure and pedicure schools 611511 Cosmetology and Barber Schools
Manicure preparations manufacturing 325620 Toilet Preparation Manufacturing
Manicurist services 812113 Nail Salons
Manifold business forms printing 323116 Manifold Business Forms Printing
Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing 336312 Gasoline Engine and Engine Parts Manufacturing
Manifolds, pipe, made from purchased metal pipe 332996 Fabricated Pipe and Pipe Fitting Manufacturing
Manila folders, die-cut, made from purchased paper or paperboard 322231 Die-Cut Paper and Paperboard Office Supplies Manufacturing
Manmade cellulosic fibers manufacturing 325221 Cellulosic Organic Fiber Manufacturing
Manmade fabric, narrow woven, weaving 313221 Narrow Fabric Mills
Manmade fabrics, broadwoven, weaving 313210 Broadwoven Fabric Mills
Manmade fiber thread manufacturing 313113 Thread Mills
Manmade fibers and filaments (except cellulosic) manufacturing 325222 Noncellulosic Organic Fiber Manufacturing
Manmade staple spun yarns made from purchased fiber 313111 Yarn Spinning Mills
Mannequin decorating services 541890 Other Services Related to Advertising
Mannequins manufacturing 339999 All Other Miscellaneous Manufacturing
Mannequins wholesaling 421440 Other Commercial Equipment Wholesalers
Mannitol hexanitrate explosive materials manufacturing 325920 Explosives Manufacturing
Manometers, industrial process-type, manufacturing 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variable
Manpower pools 561320 Temporary Help Services
Mantel construction contractors 235430 Tile, Marble, Terrazzo, and Mosaic Contractors
Manual-arts therapists' offices (e.g., centers, clinics) 621399 Offices of All Other Miscellaneous Health Practitioners
Manufactured (i.e., mobile) homes wholesaling 421390 Other Construction Material Wholesalers
Manufactured (mobile) buildings for commercial use (e.g., banks, offices) manufacturing 321991 Manufactured Home (Mobile Home) Manufacturing
Manufactured (mobile) classrooms manufacturing 321991 Manufactured Home (Mobile Home) Manufacturing
Manufactured (mobile) home dealers 453930 Manufactured (Mobile) Home Dealers
Manufactured (mobile) home parks 531190 Lessors of Other Real Estate Property
Manufactured (mobile) home parts and accessory dealers 453930 Manufactured (Mobile) Home Dealers
Manufactured (mobile) home sites rental or leasing 531190 Lessors of Other Real Estate Property
Manufactured (mobile) homes manufacturing 321991 Manufactured Home (Mobile Home) Manufacturing
Manufactured gas production and distribution 221210 Natural Gas Distribution
Manufacturers' associations 813910 Business Associations
Manufacturing 31
Manufacturing and industrial building construction management firms 233310 Manufacturing and Industrial Building Construction
Manufacturing and Reproducing Magnetic and Optical Media 3346 Manufacturing and Reproducing Magnetic and Optical Media
Manufacturing building rental or leasing 531120 Lessors of Nonresidential Buildings (except Miniwarehouses)
Manufacturing machinery and equipment rental or leasing 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing
Manufacturing management consulting services 541614 Process, Physical Distribution, and Logistics Consulting Services
Manufacturing operations improvement consulting services 541614 Process, Physical Distribution, and Logistics Consulting Services
Map publishers 511199 All Other Publishers
Map publishers and printing combined 511199 All Other Publishers
Map publishing (i.e., establishments known as publishers) 511199 All Other Publishers
Maple sap concentrating (i.e., producing pure maple syrup in the field) 111998 All Other Miscellaneous Crop Farming
Maple sap gathering 111998 All Other Miscellaneous Crop Farming
Maple syrup (i.e., maple sap reducing) 111998 All Other Miscellaneous Crop Farming
Maple syrup mixing into other products 311999 All Other Miscellaneous Food Manufacturing
Mapping (except geophysical) services 541370 Surveying and Mapping (except Geophysical) Services
Mapping services, geophysical 541360 Geophysical Surveying and Mapping Services
Maps (except globe, school, wall) wholesaling 422920 Book, Periodical, and Newspaper Wholesalers
Maps flexographic printing without publishing 323112 Commercial Flexographic Printing
Maps gravure printing without publishing 323111 Commercial Gravure Printing
Maps lithographic (offset) printing without publishing 323110 Printing
Maps printing (except flexographic, gravure, lithographic, screen) without publishing 323119 Other Commercial Printing
Maps screen printing without publishing 323113 Commercial Screen Printing
Marble crushed and broken stone mining and/or beneficiating 212319 Other Crushed and Broken Stone Mining and Quarrying
Marble mining or quarrying 212311 Dimension Stone Mining and Quarrying
Marble, granite, and slate work (interior) construction contractors 235430 Tile, Marble, Terrazzo, and Mosaic Contractors
Marble, granite, and slatework (i.e., exterior) construction contractors 235410 Masonry and Stone Contractors
Marbles manufacturing 339932 Game, Toy, and Children's Vehicle Manufacturing
Marcasite mining and/or beneficiating 212393 Other Chemical and Fertilizer Mineral Mining
Margaric acid manufacturing 325199 All Other Basic Organic Chemical Manufacturing
Margarine and other corn oils made by wet milling corn 311221 Wet Corn Milling
Margarine wholesaling 422490 Other Grocery and Related Products Wholesalers
Margarine-butter blend made from purchased fats and oils 311225 Fats and Oils Refining and Blending
Margarines (including imitation) made from purchased fats and oils 311225 Fats and Oils Refining and Blending
Marinas 713930 Marinas
Marine and navy auxiliary controls, manufacturing 335314 Relay and Industrial Control Manufacturing
Marine cargo checkers and surveyors 488390 Other Support Activities for Water Transportation
Marine cargo handling services 488320 Marine Cargo Handling
Marine construction 234990 All Other Heavy Construction
Marine Corps 928110 National Security
Marine engineering services 541330 Engineering Services
Marine engines manufacturing 333618 Other Engine Equipment Manufacturing
Marine hardware, metal, manufacturing 332510 Hardware Manufacturing
Marine horns, compressed air or steam, metal, manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
Marine insurance carriers, direct 524126 Direct Property and Casualty Insurance Carriers
Marine museums 712110 Museums
Marine navigational schools 611519 Other Technical and Trade Schools
Marine paints manufacturing 325510 Paint and Coating Manufacturing
Marine power boilers manufacturing 332410 Power Boiler and Heat Exchanger Manufacturing
Marine radio communications equipment manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
Marine reinsurance carriers 524130 Reinsurance Carriers
Marine salvaging services 488330 Navigational Services to Shipping
Marine service stations 447190 Other Gasoline Stations
Marine shipping agency 488510 Freight Transportation Arrangement
Marine storage batteries manufacturing 335911 Storage Battery Manufacturing
Marine supplies (except pleasure) wholesaling 421860 Transportation Equipment and Supplies (except Motor Vehicle) Wholesalers
Marine supplies, pleasure, wholesaling 421910 Sporting and Recreational Goods and Supplies Wholesalers
Marine supply dealers 441222 Boat Dealers
Marine surveyor (i.e., ship appraiser) services 541990 All Other Professional, Scientific, and Technical Services
Marine vessel traffic reporting services 488330 Navigational Services to Shipping
Marionettes (i.e., puppets) manufacturing 339999 All Other Miscellaneous Manufacturing
Marker boards (i.e., whiteboards) manufacturing 339942 Lead Pencil and Art Good Manufacturing
Marketing analysis services 541910 Marketing Research and Public Opinion Polling
Marketing consulting services 541613 Marketing Consulting Services
Marketing management consulting services 541613 Marketing Consulting Services
Marketing research services 541910 Marketing Research and Public Opinion Polling
Marking devices manufacturing 339943 Marking Device Manufacturing
Marking devices wholesaling 422120 Stationery and Office Supplies Wholesalers
Marking machines, metal, manufacturing 333518 Other Metalworking Machinery Manufacturing
Marl crushed and broken stone mining and/or beneficiating 212312 Crushed and Broken Limestone Mining and Quarrying
Marmalade manufacturing 311421 Fruit and Vegetable Canning
Marquetry, wood, manufacturing 321999 All Other Miscellaneous Wood Product Manufacturing
Marriage counseling services (except by offices of mental health practitioners) 624190 Other Individual and Family Services
Marshals' offices 922120 Police Protection
Marshmallow creme manufacturing 311340 Nonchocolate Confectionery Manufacturing
Marshmallows manufacturing 311340 Nonchocolate Confectionery Manufacturing
Martial arts instruction, camps, or schools 611620 Sports and Recreation Instruction
Marzipan (i.e., candy) manufacturing 311340 Nonchocolate Confectionery Manufacturing
Maser (i.e., microwave amplification by stimulated emission of radiation) amplifiers manufacturing 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing
Mashers, wood potato, manufacturing 321999 All Other Miscellaneous Wood Product Manufacturing
Masking tape made from purchased paper 322222 Coated and Laminated Paper Manufacturing
Mason's handtools manufacturing 332212 Hand and Edge Tool Manufacturing
Mason's materials wholesaling 421320 Brick, Stone, and Related Construction Material Wholesalers
Masonry (e.g., block, brick, stone) dealers 444190 Other Building Material Dealers
Masonry construction contractors 235410 Masonry and Stone Contractors
Masonry, Drywall, Insulation, and Tile Contractors 2354 Masonry, Drywall, Insulation, and Tile Contractors
Mass spectrometers manufacturing 334516 Analytical Laboratory Instrument Manufacturing
Mass spectroscopy instrumentation manufacturing 334516 Analytical Laboratory Instrument Manufacturing
Mass transit construction 234990 All Other Heavy Construction
Massage machines, electric (except designed for beauty and barber shop use), manufacturing 335211 Electric Housewares and Household Fan Manufacturing
Massage parlors 812199 Other Personal Care Services
Massage therapist instruction 611519 Other Technical and Trade Schools
Master recording leasing and licensing 512210 Record Production
Mastics (except construction) wholesaling 422690 Other Chemical and Allied Products Wholesalers
Masts, wood, manufacturing 321999 All Other Miscellaneous Wood Product Manufacturing
Mat and rug supply services 812332 Industrial Launderers
Matches and match books manufacturing 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing
Matches and match books wholesaling 422990 Other Miscellaneous Nondurable Goods Wholesalers
Materials handling equipment repair and maintenance services 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Materials handling machinery and equipment rental or leasing 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing
Materials handling machinery and equipment wholesaling 421830 Industrial Machinery and Equipment Wholesalers
Materials management consulting services 541614 Process, Physical Distribution, and Logistics Consulting Services
Materials recovery facilities (MRF) 562920 Materials Recovery Facilities
Maternity and child health program administration 923120 Administration of Public Health Programs
Maternity bras and corsets, women's, cut and sew apparel contractors 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors
Maternity bras and corsets, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractor 315231 Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear Manufacturing
Maternity hospitals 622310 Specialty (except Psychiatric and Substance Abuse) Hospitals
Maternity shops 448120 Women's Clothing Stores
Mathematics research and development laboratories or services 541710 Research and Development in the Physical, Engineering, and Life Sciences
Mats and matting made from purchased wire 332618 Other Fabricated Wire Product Manufacturing
Mattocks (i.e., handtools) manufacturing 332212 Hand and Edge Tool Manufacturing
Mattress protectors, rubber, manufacturing 326299 All Other Rubber Product Manufacturing
Mattress springs and spring units made from purchased wire 332612 Spring (Light Gauge) Manufacturing
Mattress stores (including waterbeds) 442110 Furniture Stores
Mattresses (i.e., box spring, innerspring, noninnerspring) manufacturing 337910 Mattress Manufacturing
Mattresses made from felt, foam rubber, urethane and similar materials 337910 Mattress Manufacturing
Mattresses wholesaling 421210 Furniture Wholesalers
Mattresses, air, plastics, manufacturing 326199 All Other Plastics Product Manufacturing
Mattresses, air, rubber, manufacturing 326299 All Other Rubber Product Manufacturing
Matzo baking made in commercial bakeries 311812 Commercial Bakeries
Mauls, metal, manufacturing 332212 Hand and Edge Tool Manufacturing
Mauls, wood, manufacturing 321999 All Other Miscellaneous Wood Product Manufacturing
Mausoleum construction 233320 Commercial and Institutional Building Construction
Mausoleums 812220 Cemeteries and Crematories
Mayonnaise manufacturing 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing
Mayor's offices 921110 Executive Offices

MAMD MEMIMO MRMUMY
6/ 5/98