| NAICS | NAICS Description | SIC | SIC Description |
| 211112 | Natural Gas Liquid Extraction | 1321 | Natural Gas Liquids |
| 211112 | Natural Gas Liquid Extraction | 2819 | Industrial Inorganic Chemicals, Nec |
| 213112 | Support Activities for Oil and Gas Operations | 1382 | Oil and Gas Exploration Services |
| 213112 | Support Activities for Oil and Gas Operations | 1389 | Oil and Gas Field Services, Nec |
| 213113 | Support Activities for Coal Mining | 1241 | Coal Mining Services |
| 213114 | Support Activities for Metal Mining | 1081 | Metal Mining Services |
| 221111 | Hydroelectric Power Generation | 4911 | Electric Services |
| 221111 | Hydroelectric Power Generation | 4931 | Electric and Other Services Combined |
| 221111 | Hydroelectric Power Generation | 4939 | Combination Utilities, Nec |
| 221112 | Fossil Fuel Electric Power Generation | 4911 | Electric Services |
| 221112 | Fossil Fuel Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221112 | Fossil Fuel Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221113 | Nuclear Electric Power Generation | 4911 | Electric Services |
| 221113 | Nuclear Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221113 | Nuclear Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221114 | Solar Electric Power Generation | 4911 | Electric Services |
| 221114 | Solar Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221114 | Solar Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221115 | Wind Electric Power Generation | 4911 | Electric Services |
| 221115 | Wind Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221115 | Wind Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221116 | Geothermal Electric Power Generation | 4911 | Electric Services |
| 221116 | Geothermal Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221116 | Geothermal Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221117 | Biomass Electric Power Generation | 4911 | Electric Services |
| 221117 | Biomass Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221117 | Biomass Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221118 | Other Electric Power Generation | 4911 | Electric Services |
| 221118 | Other Electric Power Generation | 4931 | Electric and Other Services Combined |
| 221118 | Other Electric Power Generation | 4939 | Combination Utilities, Nec |
| 221121 | Electric Bulk Power Transmission and Control | 4911 | Electric Services |
| 221121 | Electric Bulk Power Transmission and Control | 4931 | Electric and Other Services Combined |
| 221121 | Electric Bulk Power Transmission and Control | 4939 | Combination Utilities, Nec |
| 221122 | Electric Power Distribution | 4911 | Electric Services |
| 221122 | Electric Power Distribution | 4931 | Electric and Other Services Combined |
| 221122 | Electric Power Distribution | 4939 | Combination Utilities, Nec |
| 221210 | Natural Gas Distribution | 4923 | Gas Transmission and Distribution |
| 221210 | Natural Gas Distribution | 4924 | Natural Gas Distribution |
| 221210 | Natural Gas Distribution | 4925 | Gas Production and/or Distribution |
| 221210 | Natural Gas Distribution | 4931 | Electric and Other Services Combined |
| 221210 | Natural Gas Distribution | 4932 | Gas and Other Services Combined |
| 221210 | Natural Gas Distribution | 4939 | Combination Utilities, Nec |
| 221310 | Water Supply and Irrigation Systems | 4941 | Water Supply |
| 221310 | Water Supply and Irrigation Systems | 4971 | Irrigation Systems |
| 221330 | Steam and Air-Conditioning Supply | 4961 | Steam and Air-conditioning Supply |
| 324110 | Petroleum Refineries | 2911 | Petroleum Refining |
| 324199 | All Other Petroleum and Coal Products Manufacturing | 2999 | Petroleum and Coal Products, Nec |
| 324199 | All Other Petroleum and Coal Products Manufacturing | 3312 | Blast Furnaces and Steel Mills |
| 325110 | Petrochemical Manufacturing | 2865 | Cyclic Crudes and Intermediates |
| 325110 | Petrochemical Manufacturing | 2869 | Industrial Organic Chemicals, Nec |
| 325120 | Industrial Gas Manufacturing | 2813 | Industrial Gases |
| 325120 | Industrial Gas Manufacturing | 2869 | Industrial Organic Chemicals, Nec |
| 325130 | Synthetic Dye and Pigment Manufacturing | 2816 | Inorganic Pigments |
| 325130 | Synthetic Dye and Pigment Manufacturing | 2819 | Industrial Inorganic Chemicals, Nec |
| 325130 | Synthetic Dye and Pigment Manufacturing | 2865 | Cyclic Crudes and Intermediates |
| 325180 | Other Basic Inorganic Chemical Manufacturing | 2812 | Alkalies and Chlorine |
| 325180 | Other Basic Inorganic Chemical Manufacturing | 2816 | Inorganic Pigments |
| 325180 | Other Basic Inorganic Chemical Manufacturing | 2819 | Industrial Inorganic Chemicals, Nec |
| 325180 | Other Basic Inorganic Chemical Manufacturing | 2869 | Industrial Organic Chemicals, Nec |
| 325180 | Other Basic Inorganic Chemical Manufacturing | 2895 | Carbon Black |
| 325193 | Ethyl Alcohol Manufacturing | 2869 | Industrial Organic Chemicals, Nec |
| 325194 | Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 2861 | Gum and Wood Chemicals |
| 325194 | Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 2865 | Cyclic Crudes and Intermediates |
| 325194 | Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 2869 | Industrial Organic Chemicals, Nec |
| 325199 | All Other Basic Organic Chemical Manufacturing | 2869 | Industrial Organic Chemicals, Nec |
| 325199 | All Other Basic Organic Chemical Manufacturing | 2899 | Chemical Preparations, Nec |
| 325211 | Plastics Material and Resin Manufacturing | 2821 | Plastics Materials and Resins |
| 325212 | Synthetic Rubber Manufacturing | 2822 | Synthetic Rubber |
| 325220 | Artificial and Synthetic Fibers and Filaments Manufacturing | 2823 | Cellulosic Manmade Fibers |
| 325220 | Artificial and Synthetic Fibers and Filaments Manufacturing | 2824 | Organic Fibers, Noncellulosic |
| 325311 | Nitrogenous Fertilizer Manufacturing | 2873 | Nitrogenous Fertilizers |
| 325312 | Phosphatic Fertilizer Manufacturing | 2874 | Phosphatic Fertilizers |
| 325314 | Fertilizer (Mixing Only) Manufacturing | 2875 | Fertilizers, Mixing Only |
| 325320 | Pesticide and Other Agricultural Chemical Manufacturing | 2879 | Agricultural Chemicals, Nec |
| 325411 | Medicinal and Botanical Manufacturing | 2833 | Medicinals and Botanicals |
| 325412 | Pharmaceutical Preparation Manufacturing | 2834 | Pharmaceutical Preparations |
| 325412 | Pharmaceutical Preparation Manufacturing | 2835 | Diagnostic Substances |
| 325413 | In-Vitro Diagnostic Substance Manufacturing | 2835 | Diagnostic Substances |
| 325414 | Biological Product (except Diagnostic) Manufacturing | 2836 | Biological Products, Except Diagnostic |
| 325510 | Paint and Coating Manufacturing | 2851 | Paints and Allied Products |
| 325510 | Paint and Coating Manufacturing | 2899 | Chemical Preparations, Nec |
| 326150 | Urethane and Other Foam Product (except Polystyrene)Manufacturing | 3086 | Plastics Foam Products |
| 326160 | Plastics Bottle Manufacturing | 3085 | Plastics Bottles |
| 326191 | Plastics Plumbing Fixture Manufacturing | 3088 | Plastics Plumbing Fixtures |
| 326199 | All Other Plastics Product Manufacturing | 3069 | Fabricated Rubber Products, Nec |
| 326199 | All Other Plastics Product Manufacturing | 3089 | Plastics Products, Nec |
| 326199 | All Other Plastics Product Manufacturing | 3996 | Hard Surface Floor Coverings, Nec |
| 326199 | All Other Plastics Product Manufacturing | 3999 | Manufacturing Industries, Nec |
| 326211 | Tire Manufacturing (except Retreading) | 3011 | Tires and Inner Tubes |
| 326212 | Tire Retreading | 7534 | Tire Retreading and Repair Shops |
| 326220 | Rubber and Plastics Hoses and Belting Manufacturing | 3052 | Rubber and Plastics Hose and Beltings |
| 326291 | Rubber Product Manufacturing for Mechanical Use | 3061 | Mechanical Rubber Goods |
| 326299 | All Other Rubber Product Manufacturing | 3061 | Mechanical Rubber Goods |
| 326299 | All Other Rubber Product Manufacturing | 3069 | Fabricated Rubber Products, Nec |
| 327211 | Flat Glass Manufacturing | 3211 | Flat Glass |
| 327213 | Glass Container Manufacturing | 3221 | Glass Containers |
| 327215 | Glass Product Manufacturing Made of Purchased Glass | 3231 | Products of Purchased Glass |
| 331221 | Rolled Steel Shape Manufacturing | 3399 | Primary Metal Products |
| 331222 | Steel Wire Drawing | 3315 | Steel Wire and Related Products |
| 331313 | Alumina Refining and Primary Aluminum Production | 2819 | Industrial Inorganic Chemicals, Nec |
| 331313 | Alumina Refining and Primary Aluminum Production | 3334 | Primary Aluminum |
| 331314 | Secondary Smelting and Alloying of Aluminum | 3341 | Secondary Nonferrous Metals |
| 331314 | Secondary Smelting and Alloying of Aluminum | 3399 | Primary Metal Products |
| 331315 | Aluminum Sheet, Plate, and Foil Manufacturing | 3353 | Aluminum Sheet, Plate, and Foil |
| 331318 | Other Aluminum Rolling, Drawing, and Extruding | 3354 | Aluminum Extruded Products |
| 331318 | Other Aluminum Rolling, Drawing, and Extruding | 3355 | Aluminum Rolling and Drawing, Nec |
| 331318 | Other Aluminum Rolling, Drawing, and Extruding | 3357 | Nonferrous Wiredrawing and Insulating |
| 331410 | Nonferrous Metal (except Aluminum) Smelting and Refining | 3331 | Primary Copper |
| 331410 | Nonferrous Metal (except Aluminum) Smelting and Refining | 3339 | Primary Nonferrous Metals, Nec |
| 331420 | Copper Rolling, Drawing, Extruding, and Alloying | 3341 | Secondary Nonferrous Metals |
| 331420 | Copper Rolling, Drawing, Extruding, and Alloying | 3351 | Copper Rolling and Drawing |
| 331420 | Copper Rolling, Drawing, Extruding, and Alloying | 3357 | Nonferrous Wiredrawing and Insulating |
| 331420 | Copper Rolling, Drawing, Extruding, and Alloying | 3399 | Primary Metal Products |
| 331491 | Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 3356 | Nonferrous Rolling and Drawing, Nec |
| 331491 | Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 3357 | Nonferrous Wiredrawing and Insulating |
| 331492 | Secondary Smelting, Refining, and Alloying of Nonferrous Metal(except Copper and Aluminum) | 3341 | Secondary Nonferrous Metals |
| 331492 | Secondary Smelting, Refining, and Alloying of Nonferrous Metal(except Copper and Aluminum) | 3399 | Primary Metal Products |
| 331511 | Iron Foundries | 3321 | Gray and Ductile Iron Foundries |
| 331511 | Iron Foundries | 3322 | Malleable Iron Foundries |
| 331512 | Steel Investment Foundries | 3324 | Steel Investment Foundries |
| 331513 | Steel Foundries (except Investment) | 3325 | Steel Foundries, Nec |
| 332117 | Powder Metallurgy Part Manufacturing | 3499 | Fabricated Metal Products, Nec |
| 332216 | Saw Blade and Handtool Manufacturing | 3523 | Farm Machinery and Equipment |
| 332216 | Saw Blade and Handtool Manufacturing | 3524 | Lawn and Garden Equipment |
| 332216 | Saw Blade and Handtool Manufacturing | 3545 | Machine Tool Accessories |
| 332216 | Saw Blade and Handtool Manufacturing | 3644 | Noncurrent-carrying Wiring Devices |
| 332216 | Saw Blade and Handtool Manufacturing | 3999 | Manufacturing Industries, Nec |
| 332431 | Metal Can Manufacturing | 3411 | Metal Cans |
| 332439 | Other Metal Container Manufacturing | 3499 | Fabricated Metal Products, Nec |
| 332439 | Other Metal Container Manufacturing | 3537 | Industrial Trucks and Tractors |
| 332510 | Hardware Manufacturing | 3429 | Hardware, Nec |
| 332510 | Hardware Manufacturing | 3499 | Fabricated Metal Products, Nec |
| 332710 | Machine Shops | 3599 | Industrial Machinery, Nec |
| 333111 | Farm Machinery and Equipment Manufacturing | 3523 | Farm Machinery and Equipment |
| 333111 | Farm Machinery and Equipment Manufacturing | 3559 | Special Industry Machinery, Nec |
| 333112 | Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 3524 | Lawn and Garden Equipment |
| 333120 | Construction Machinery Manufacturing | 3531 | Construction Machinery |
| 333131 | Mining Machinery and Equipment Manufacturing | 3532 | Mining Machinery |
| 333132 | Oil and Gas Field Machinery and Equipment Manufacturing | 3533 | Oil and Gas Field Machinery |
| 333241 | Food Product Machinery Manufacturing | 3556 | Food Products Machinery |
| 333242 | Semiconductor Machinery Manufacturing | 3559 | Special Industry Machinery, Nec |
| 333243 | Sawmill, Woodworking, and Paper Machinery Manufacturing | 3553 | Woodworking Machinery |
| 333243 | Sawmill, Woodworking, and Paper Machinery Manufacturing | 3554 | Paper Industries Machinery |
| 333244 | Printing Machinery and Equipment Manufacturing | 3555 | Printing Trades Machinery |
| 333249 | Other Industrial Machinery Manufacturing | 2599 | Furniture and Fixtures, Nec |
| 333249 | Other Industrial Machinery Manufacturing | 3552 | Textile Machinery |
| 333249 | Other Industrial Machinery Manufacturing | 3559 | Special Industry Machinery, Nec |
| 333249 | Other Industrial Machinery Manufacturing | 3639 | Household Appliances, Nec |
| 333249 | Other Industrial Machinery Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 333249 | Other Industrial Machinery Manufacturing | 3841 | Surgical and Medical Instruments |
| 333314 | Optical Instrument and Lens Manufacturing | 3827 | Optical Instruments and Lenses |
| 333316 | Photographic and Photocopying Equipment Manufacturing | 3577 | Computer Peripheral Equipment, Nec |
| 333316 | Photographic and Photocopying Equipment Manufacturing | 3578 | Calculating and Accounting Equipment |
| 333316 | Photographic and Photocopying Equipment Manufacturing | 3861 | Photographic Equipment and Supplies |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3559 | Special Industry Machinery, Nec |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3578 | Calculating and Accounting Equipment |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3578 | Calculating and Accounting Equipment |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3579 | Office Machines, Nec |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3581 | Automatic Vending Machines |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3582 | Commercial Laundry Equipment |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3589 | Service Industry Machinery, Nec |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3599 | Industrial Machinery, Nec |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3699 | Electrical Equipment and Supplies, Nec |
| 333318 | Other Commercial and Service Industry Machinery Manufacturing | 3999 | Manufacturing Industries, Nec |
| 333413 | Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing | 3564 | Blowers and Fans |
| 333413 | Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing | 3564 | Blowers and Fans |
| 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | 3433 | Heating Equipment, Except Electric |
| 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | 3569 | General Industrial Machinery, |
| 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | 3634 | Electric Housewares and Fans |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 2499 | Wood Products, Nec |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 2599 | Furniture and Fixtures, Nec |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 3443 | Fabricated Plate Work (boiler Shop) |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 3444 | Sheet Metalwork |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 3585 | Refrigeration and Heating Equipment |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 3841 | Surgical and Medical Instruments |
| 333515 | Cutting Tool and Machine Tool Accessory Manufacturing | 3545 | Machine Tool Accessories |
| 333517 | Machine Tool Manufacturing | 3541 | Machine Tools, Metal Cutting Type |
| 333517 | Machine Tool Manufacturing | 3542 | Machine Tools, Metal Forming Type |
| 333519 | Rolling Mill and Other Metalworking Machinery Manufacturing | 3549 | Metalworking Machinery, Nec |
| 333611 | Turbine and Turbine Generator Set Units Manufacturing | 3511 | Turbines and Turbine Generator Sets |
| 333613 | Mechanical Power Transmission Equipment Manufacturing | 3568 | Power Transmission Equipment, Nec |
| 333618 | Other Engine Equipment Manufacturing | 3699 | Electrical Equipment and Supplies, Nec |
| 333911 | Pump and Pumping Equipment Manufacturing | 3561 | Pumps and Pumping Equipment |
| 333911 | Pump and Pumping Equipment Manufacturing | 3743 | Railroad Equipment |
| 333912 | Air and Gas Compressor Manufacturing | 3563 | Air and Gas Compressors |
| 333913 | Measuring and Dispensing Pump Manufacturing | 3586 | Measuring and Dispensing Pumps |
| 333921 | Elevator and Moving Stairway Manufacturing | 3534 | Elevators and Moving Stairways |
| 333922 | Conveyor and Conveying Equipment Manufacturing | 3523 | Farm Machinery and Equipment |
| 333922 | Conveyor and Conveying Equipment Manufacturing | 3535 | Conveyors and Conveying Equipment |
| 333923 | Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 3429 | Hardware, Nec |
| 333923 | Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 3531 | Construction Machinery |
| 333923 | Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 3536 | Hoists, Cranes, and Monorails |
| 333924 | Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 3496 | Miscellaneous Fabricated Wire Products |
| 333924 | Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 3537 | Industrial Trucks and Tractors |
| 333924 | Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 3799 | Transportation Equipment, Nec |
| 333991 | Power-Driven Handtool Manufacturing | 3546 | Power-driven Handtools |
| 333992 | Welding and Soldering Equipment Manufacturing | 3548 | Welding Apparatus |
| 333992 | Welding and Soldering Equipment Manufacturing | 3699 | Electrical Equipment and Supplies, Nec |
| 333993 | Packaging Machinery Manufacturing | 3565 | Packaging Machinery |
| 333994 | Industrial Process Furnace and Oven Manufacturing | 2599 | Furniture and Fixtures, Nec |
| 333994 | Industrial Process Furnace and Oven Manufacturing | 3567 | Industrial Furnaces and Ovens |
| 333994 | Industrial Process Furnace and Oven Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 333994 | Industrial Process Furnace and Oven Manufacturing | 3841 | Surgical and Medical Instruments |
| 333995 | Fluid Power Cylinder and Actuator Manufacturing | 3593 | Fluid Power Cylinders and Actuators |
| 333996 | Fluid Power Pump and Motor Manufacturing | 3594 | Fluid Power Pumps and Motors |
| 333997 | Scale and Balance Manufacturing | 2599 | Furniture and Fixtures, Nec |
| 333997 | Scale and Balance Manufacturing | 3596 | Scales and Balances, Except Laboratory |
| 333997 | Scale and Balance Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 333997 | Scale and Balance Manufacturing | 3841 | Surgical and Medical Instruments |
| 333999 | All Other Miscellaneous General Purpose Machinery Manufacturing | 2599 | Furniture and Fixtures, Nec |
| 333999 | All Other Miscellaneous General Purpose Machinery Manufacturing | 3569 | General Industrial Machinery, |
| 333999 | All Other Miscellaneous General Purpose Machinery Manufacturing | 3599 | Industrial Machinery, Nec |
| 333999 | All Other Miscellaneous General Purpose Machinery Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 333999 | All Other Miscellaneous General Purpose Machinery Manufacturing | 3841 | Surgical and Medical Instruments |
| 334112 | Computer Storage Device Manufacturing | 3572 | Computer Storage Devices |
| 334118 | Computer Terminal and Other Computer Peripheral Equipment Manufacturing | 3578 | Calculating and Accounting Equipment |
| 334210 | Telephone Apparatus Manufacturing | 3661 | Telephone and Telegraph Apparatus |
| 334220 | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 3663 | Radio and T.v. Communications Equipment |
| 334220 | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 3679 | Electronic Components, Nec |
| 334290 | Other Communications Equipment Manufacturing | 3669 | Communications Equipment, Nec |
| 334310 | Audio and Video Equipment Manufacturing | 3651 | Household Audio and Video Equipment |
| 334310 | Audio and Video Equipment Manufacturing | 3679 | Electronic Components, Nec |
| 334413 | Semiconductor and Related Device Manufacturing | 3674 | Semiconductors and Related Devices |
| 334417 | Electronic Connector Manufacturing | 3678 | Electronic Connectors |
| 334510 | Electromedical and Electrotherapeutic Apparatus Manufacturing | 3842 | Surgical Appliances and Supplies |
| 334510 | Electromedical and Electrotherapeutic Apparatus Manufacturing | 3845 | Electromedical Equipment |
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 3812 | Search and Navigation Equipment |
| 334512 | Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use | 3822 | Environmental Controls |
| 334513 | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 3823 | Process Control Instruments |
| 334514 | Totalizing Fluid Meter and Counting Device Manufacturing | 3824 | Fluid Meters and Counting Devices |
| 334514 | Totalizing Fluid Meter and Counting Device Manufacturing | 3825 | Instruments To Measure Electricity |
| 334514 | Totalizing Fluid Meter and Counting Device Manufacturing | 3829 | Measuring and Controlling Devices, Nec |
| 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 3663 | Radio and T.v. Communications Equipment |
| 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 3825 | Instruments To Measure Electricity |
| 334516 | Analytical Laboratory Instrument Manufacturing | 3826 | Analytical Instruments |
| 334517 | Irradiation Apparatus Manufacturing | 3844 | X-ray Apparatus and Tubes |
| 334519 | Other Measuring and Controlling Device Manufacturing | 3429 | Hardware, Nec |
| 334519 | Other Measuring and Controlling Device Manufacturing | 3599 | Industrial Machinery, Nec |
| 334519 | Other Measuring and Controlling Device Manufacturing | 3829 | Measuring and Controlling Devices, Nec |
| 334519 | Other Measuring and Controlling Device Manufacturing | 3829 | Measuring and Controlling Devices, Nec |
| 335121 | Residential Electric Lighting Fixture Manufacturing | 3999 | Manufacturing Industries, Nec |
| 335129 | Other Lighting Equipment Manufacturing | 3648 | Lighting Equipment, Nec |
| 335129 | Other Lighting Equipment Manufacturing | 3699 | Electrical Equipment and Supplies, Nec |
| 335210 | Small Electrical Appliance Manufacturing | 3999 | Manufacturing Industries, Nec |
| 335311 | Power, Distribution, and Specialty Transformer Manufacturing | 3548 | Welding Apparatus |
| 335312 | Motor and Generator Manufacturing | 3621 | Motors and Generators |
| 335999 | All Other Miscellaneous Electrical Equipment and Component Manufacturing | 3629 | Electrical Industrial Apparatus |
| 335999 | All Other Miscellaneous Electrical Equipment and Component Manufacturing | 3699 | Electrical Equipment and Supplies, Nec |
| 336111 | Automobile Manufacturing | 3711 | Motor Vehicles and Car Bodies |
| 336112 | Light Truck and Utility Vehicle Manufacturing | 3711 | Motor Vehicles and Car Bodies |
| 336120 | Heavy Duty Truck Manufacturing | 3711 | Motor Vehicles and Car Bodies |
| 336211 | Motor Vehicle Body Manufacturing | 3711 | Motor Vehicles and Car Bodies |
| 336211 | Motor Vehicle Body Manufacturing | 3713 | Truck and Bus Bodies |
| 336211 | Motor Vehicle Body Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336212 | Truck Trailer Manufacturing | 3715 | Truck Trailers |
| 336213 | Motor Home Manufacturing | 3716 | Motor Homes |
| 336214 | Travel Trailer and Camper Manufacturing | 3792 | Travel Trailers and Campers |
| 336214 | Travel Trailer and Camper Manufacturing | 3799 | Transportation Equipment, Nec |
| 336310 | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | 3592 | Carburetors, Pistons, Rings, Valves |
| 336310 | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336320 | Motor Vehicle Electrical and Electronic Equipment Manufacturing | 3647 | Vehicular Lighting Equipment |
| 336320 | Motor Vehicle Electrical and Electronic Equipment Manufacturing | 3694 | Engine Electrical Equipment |
| 336320 | Motor Vehicle Electrical and Electronic Equipment Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336330 | Motor Vehicle Steering and Suspension Components (exceptSpring) Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336340 | Motor Vehicle Brake System Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336350 | Motor Vehicle Transmission and Power Train Parts Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336360 | Motor Vehicle Seating and Interior Trim Manufacturing | 2396 | Automotive and Apparel Trimmings |
| 336390 | Other Motor Vehicle Parts Manufacturing | 3429 | Hardware, Nec |
| 336390 | Other Motor Vehicle Parts Manufacturing | 3519 | Internal Combustion Engines, Nec |
| 336390 | Other Motor Vehicle Parts Manufacturing | 3585 | Refrigeration and Heating Equipment |
| 336390 | Other Motor Vehicle Parts Manufacturing | 3599 | Industrial Machinery, Nec |
| 336390 | Other Motor Vehicle Parts Manufacturing | 3714 | Motor Vehicle Parts and Accessories |
| 336390 | Other Motor Vehicle Parts Manufacturing | 3799 | Transportation Equipment, Nec |
| 336411 | Aircraft Manufacturing | 3721 | Aircraft |
| 336411 | Aircraft Manufacturing | 3728 | Aircraft Parts and Equipment, Nec |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | 3728 | Aircraft Parts and Equipment, Nec |
| 336414 | Guided Missile and Space Vehicle Manufacturing | 3761 | Guided Missiles and Space Vehicles |
| 336415 | Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing | 3764 | Space Propulsion Units and Parts |
| 336419 | Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing | 3769 | Space Vehicle Equipment, Nec |
| 336510 | Railroad Rolling Stock Manufacturing | 3743 | Railroad Equipment |
| 336611 | Ship Building and Repairing | 3731 | Shipbuilding and Repairing |
| 336612 | Boat Building | 3999 | Manufacturing Industries, Nec |
| 336991 | Motorcycle, Bicycle, and Parts Manufacturing | 3751 | Motorcycles, Bicycles, and Parts |
| 336992 | Military Armored Vehicle, Tank, and Tank Component Manufacturing | 3711 | Motor Vehicles and Car Bodies |
| 336992 | Military Armored Vehicle, Tank, and Tank Component Manufacturing | 3795 | Tanks and Tank Components |
| 336999 | All Other Transportation Equipment Manufacturing | 3799 | Transportation Equipment, Nec |
| 337127 | Institutional Furniture Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 339113 | Surgical Appliance and Supplies Manufacturing | 3821 | Laboratory Apparatus and Furniture |
| 339113 | Surgical Appliance and Supplies Manufacturing | 3841 | Surgical and Medical Instruments |
| 339113 | Surgical Appliance and Supplies Manufacturing | 3842 | Surgical Appliances and Supplies |
| 339992 | Musical Instrument Manufacturing | 3931 | Musical Instruments |
| 339999 | All Other Miscellaneous Manufacturing | 3634 | Electric Housewares and Fans |
| 339999 | All Other Miscellaneous Manufacturing | 3842 | Surgical Appliances and Supplies |
| 339999 | All Other Miscellaneous Manufacturing | 3999 | Manufacturing Industries, Nec |
| 482112 | Short Line Railroads | 4013 | Switching and Terminal Services |
| 486110 | Pipeline Transportation of Crude Oil | 4612 | Crude Petroleum Pipelines |
| 486210 | Pipeline Transportation of Natural Gas | 4922 | Natural Gas Transmission |
| 486210 | Pipeline Transportation of Natural Gas | 4923 | Gas Transmission and Distribution |
| 486910 | Pipeline Transportation of Refined Petroleum Products | 4613 | Refined Petroleum Pipelines |
| 486990 | All Other Pipeline Transportation | 4619 | Pipelines, Nec |
| 488111 | Air Traffic Control | 4581 | Airports, Flying Fields, and Services |
| 488111 | Air Traffic Control | 9621 | Regulation, Administration of Transportation |
| 488119 | Other Airport Operations | 4581 | Airports, Flying Fields, and Services |
| 488190 | Other Support Activities for Air Transportation | 4581 | Airports, Flying Fields, and Services |
| 488210 | Support Activities for Rail Transportation | 4013 | Switching and Terminal Services |
| 517410 | Satellite Telecommunications | 4899 | Communication Services, Nec |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 3721 | Aircraft |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 3724 | Aircraft Engines and Engine Parts |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 3728 | Aircraft Parts and Equipment, Nec |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 3761 | Guided Missiles and Space Vehicles |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 3764 | Space Propulsion Units and Parts |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 3769 | Space Vehicle Equipment, Nec |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 8731 | Commercial Physical Research |
| 541712 | Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 8733 | Noncommercial Research Organizations |
| 541720 | Research and Development in the Social Sciences and Humanities | 8732 | Commercial Nonphysical Research |
| 541720 | Research and Development in the Social Sciences and Humanities | 8733 | Noncommercial Research Organizations |
| 811212 | Computer and Office Machine Repair and Maintenance | 7629 | Electrical Repair Shops |
