SIC to NAICS Employment Ratios for 4-Digit SIC Series

The following table shows, for the private sector, ratios of employment from 4-digit SIC series to corresponding 4-, 5-, and 6-digit NAICS series. The table was prepared using first quarter 2001 data from the Quarterly Census of Employment and Wages Program and can be used to evaluate time series breaks and correspondence between SIC and NAICS in the CES series. For example, for CES SIC series 20-1542 Nonresidential building construction, approximately 81 percent of the employment will go to NAICS series 20-236220 Commercial building , and 18.1 percent to 20-236210 Industrial building. Ratios may not add up to 100 percent for an SIC series because ratios less than one percent were excluded, and not all NAICS industries will be published under CES—part of an SIC series may go to an unpublished NAICS industry or a combined NAICS series. See CES Series to be Published Under NAICS.

SIC Divisions

  • Mining
  • Construction
  • Manufacturing
  • Transportation and Public Utilities
  • Wholesale Trade
  • Retail Trade
  • Finance, Insurance, and Real Estate
  • Services
    • </
    CES SIC Tabulating Code SIC Industry CES NAICS Tabulating Code NAICS Industry SIC to NAICS Employment Ratio
    10-1011 Iron ores 10-212200 Metal ore mining 100.0
    10-1021 Copper ores 10-212200 Metal ore mining 97.2
    10-1021 Copper ores 60-551114 Managing offices 2.8
    10-1031 Lead and zinc ores 10-212200 Metal ore mining 100.0
    10-1044 Gold and silver ores 10-212200 Metal ore mining 97.5
    10-1044 Gold and silver ores 60-551114 Managing offices 2.4
    10-1099 Other metal ores and mining services 10-212200 Metal ore mining 66.1
    10-1099 Other metal ores and mining services 10-213000 Support activities for mining 24.3
    10-1099 Other metal ores and mining services 20-238910 Site preparation contractors 7.2
    10-1099 Other metal ores and mining services 60-551114 Managing offices 1.3
    10-1099 Other metal ores and mining services 60-541370 Building inspection, surveying, and mapping services 1.1
    10-1221 Bituminous coal and lignite-surface 10-212111 Bituminous coal and lignite surface mining 97.3
    10-1221 Bituminous coal and lignite-surface 60-551114 Managing offices 2.5
    10-1222 Bituminous coal-underground 10-212113 Bituminous coal underground mining and anthracite mining 98.5
    10-1222 Bituminous coal-underground 60-551114 Managing offices 1.4
    10-1241 Anthracite mining and coal mining services 10-213000 Support activities for mining 59.1
    10-1241 Anthracite mining and coal mining services 20-238910 Site preparation contractors 22.1
    10-1241 Anthracite mining and coal mining services 10-212113 Bituminous coal underground mining and anthracite mining 16.9
    10-1241 Anthracite mining and coal mining services 60-551114 Managing offices 1.3
    10-1311 Crude petroleum and natural gas 10-211000 Oil and gas extraction 95.9
    10-1311 Crude petroleum and natural gas 60-551114 Managing offices 2.9
    10-1311 Crude petroleum and natural gas 60-541219 Other accounting services 1.2
    10-1321 Natural gas liquids 10-211000 Oil and gas extraction 99.7
    10-1389 Oil and gas field services 10-213000 Support activities for mining 89.9
    10-1389 Oil and gas field services 10-213112 Support activities for oil and gas operations 59.0
    10-1389 Oil and gas field services 10-213000 Support activities for mining 30.9
    10-1389 Oil and gas field services 20-238910 Site preparation contractors 6.2
    10-1389 Oil and gas field services 60-541370 Building inspection, surveying, and mapping services 1.8
    10-1389 Oil and gas field services 20-237120 Oil and gas pipeline construction 1.4
    10-1429 Crushed and broken stone 10-212312 Crushed and broken limestone mining 62.8
    10-1429 Crushed and broken stone 10-212319 Other stone mining and quarrying 32.2
    10-1429 Crushed and broken stone 60-551114 Managing offices 4.3
    10-1446 Sand and gravel 10-212320 Sand, gravel, clay, and refractory mining 97.4
    10-1446 Sand and gravel 10-212321 Construction sand and gravel mining 88.1
    10-1446 Sand and gravel 60-551114 Managing offices 1.8
    10-1459 Clay, ceramic, and refractory minerals 10-212320 Sand, gravel, clay, and refractory mining 90.9
    10-1459 Clay, ceramic, and refractory minerals 60-551114 Managing offices 6.3
    10-1459 Clay, ceramic, and refractory minerals 60-561490 Other business support services 1.9
    10-1479 Chemical and fertilizer minerals 10-212390 Other nonmetallic mineral mining 99.1
    10-1499 Dimension stone and other nonmetallic minerals 10-212319 Other stone mining and quarrying 56.3
    10-1499 Dimension stone and other nonmetallic minerals 10-212390 Other nonmetallic mineral mining 31.8
    10-1499 Dimension stone and other nonmetallic minerals 10-213000 Support activities for mining 8.1
    10-1499 Dimension stone and other nonmetallic minerals 60-551114 Managing offices 1.5
    20-1522 Residential building construction 20-236115 New single-family general contractors 64.3
    20-1522 Residential building construction 20-236118 Residential remodelers 30.3
    20-1522 Residential building construction 20-236116 New multifamily general contractors 3.3
    20-1522 Residential building construction 20-236220 Commercial building 1.8
    20-1531 Operative builders 20-236117 New housing operative builders (unpublished industry) 76.8
    20-1531 Operative builders 20-236118 Residential remodelers 8.3
    20-1531 Operative builders 20-236220 Commercial building 8.1
    20-1531 Operative builders 20-236210 Industrial building 3.3
    20-1531 Operative builders 60-561422 Telemarketing bureaus 1.8
    20-1531 Operative builders 60-551114 Managing offices 1.5
    20-1542 Nonresidential building construction 20-236220 Commercial building 81.0
    20-1542 Nonresidential building construction 20-236210 Industrial building 18.1
    20-1611 Highway and street construction 20-237300 Highway, street, and bridge construction 98.3
    20-1611 Highway and street construction 60-551114 Managing offices 1.5
    20-1622 Bridge, tunnel, and elevated highway 20-237300 Highway, street, and bridge construction 91.7
    20-1622 Bridge, tunnel, and elevated highway 20-237900 Other heavy construction 7.4
    20-1623 Water, sewer, and utility lines 20-237130 Power and communication system construction 42.5
    20-1623 Water, sewer, and utility lines 20-237110 Water and sewer system construction 42.3
    20-1623 Water, sewer, and utility lines 20-237120 Oil and gas pipeline construction 14.8
    20-1629 Heavy construction, nec 20-237900 Other heavy construction 34.5
    20-1629 Heavy construction, nec 20-236210 Industrial building 32.0
    20-1629 Heavy construction, nec 20-237110 Water and sewer system construction 9.5
    20-1629 Heavy construction, nec 20-237120 Oil and gas pipeline construction 9.2
    20-1629 Heavy construction, nec 20-238910 Site preparation contractors 9.0
    20-1629 Heavy construction, nec 20-237130 Power and communication system construction 5.4
    20-1711 Plumbing, heating, and air conditioning 20-238220 Plumbing and HVAC contractors 87.6
    20-1711 Plumbing, heating, and air conditioning 20-238210 Electrical contractors 10.8
    20-1711 Plumbing, heating, and air conditioning 20-238910 Site preparation contractors 1.2
    20-1721 Painting and paper hanging 20-238320 Painting and wall covering contractors 97.0
    20-1721 Painting and paper hanging 20-237300 Highway, street, and bridge construction 2.9
    20-1731 Electrical work 20-238210 Electrical contractors 99.3
    20-1741 Masonry and other stonework 20-238140 Masonry contractors 100.0
    20-1742 Plastering, drywall, and insulation 20-238310 Drywall and insulation contractors 99.4
    20-1743 Terrazzo, tile, marble, and mosaic work 20-238340 Tile and terrazzo contractors 98.1
    20-1743 Terrazzo, tile, marble, and mosaic work 20-238310 Drywall and insulation contractors 1.7
    20-1751 Carpentry work 20-238350 Finish carpentry contractors 52.2
    20-1751 Carpentry work 20-238130 Framing contractors 47.7
    20-1752 Floor laying and floor work, nec 20-238330 Flooring contractors 99.8
    20-1761 Roofing, siding, and sheet metal work 20-238160 Roofing contractors 73.4
    20-1761 Roofing, siding, and sheet metal work 20-238170 Siding contractors 13.3
    20-1761 Roofing, siding, and sheet metal work 20-238390 Other building finishing contractors 13.3
    20-1771 Concrete work 20-238110 Poured concrete structure contractors 57.3
    20-1771 Concrete work 20-238990 All other specialty trade contractors 37.3
    20-1771 Concrete work 20-238140 Masonry contractors 5.1
    20-1781 Water well drilling 20-237110 Water and sewer system construction 100.0
    20-1791 Structural steel erection 20-238120 Steel and precast concrete contractors 94.2
    20-1791 Structural steel erection 20-238190 Other building exterior contractors 4.4
    20-1791 Structural steel erection 20-238220 Plumbing and HVAC contractors 1.2
    20-1793 Glass and glazing work 20-238150 Glass and glazing contractors 100.0
    20-1794 Excavation work 20-238910 Site preparation contractors 99.9
    20-1799 Wrecking, demolition, and other special trade contractors 20-238990 All other specialty trade contractors 31.1
    20-1799 Wrecking, demolition, and other special trade contractors 20-238290 Other building equipment contractors 27.2
    20-1799 Wrecking, demolition, and other special trade contractors 60-562910 Remediation services 8.7
    20-1799 Wrecking, demolition, and other special trade contractors 20-238390 Other building finishing contractors 8.5
    20-1799 Wrecking, demolition, and other special trade contractors 20-238910 Site preparation contractors 7.5
    20-1799 Wrecking, demolition, and other special trade contractors 20-238190 Other building exterior contractors 7.1
    20-1799 Wrecking, demolition, and other special trade contractors 20-237900 Other heavy construction 4.1
    20-1799 Wrecking, demolition, and other special trade contractors 20-236220 Commercial building 2.4
    20-1799 Wrecking, demolition, and other special trade contractors 20-238220 Plumbing and HVAC contractors 1.4
    20-1799 Wrecking, demolition, and other special trade contractors 60-561790 Other services to buildings and dwellings 1.2
    31-2411 Logging 10-113300 Logging 99.8
    31-2421 Sawmills and planing mills, general 31-321100 Sawmills and wood preservation 80.6
    31-2421 Sawmills and planing mills, general 31-321918 Cut stock, resawing lumber, planing, & other millwork, including flooring 9.7
    31-2421 Sawmills and planing mills, general 31-321990 All other wood products 4.5
    31-2421 Sawmills and planing mills, general 60-551114 Managing offices 4.0
    31-2426 Hardwood dimension and flooring mills 31-321918 Cut stock, resawing lumber, planing, & other millwork, including flooring 62.7
    31-2426 Hardwood dimension and flooring mills 31-337215 Showcases, partitions, shelving, and lockers 22.5
    31-2426 Hardwood dimension and flooring mills 31-321100 Sawmills and wood preservation 14.7
    31-2429 Special product sawmills, nec 31-321100 Sawmills and wood preservation 49.3
    31-2429 Special product sawmills, nec 31-321990 All other wood products 27.9
    31-2429 Special product sawmills, nec 31-321920 Wood containers and pallets 22.7
    31-2431 Millwork 31-321911 Wood windows and doors 58.1
    31-2431 Millwork 31-321918 Cut stock, resawing lumber, & planing, & other millwork 40.0
    31-2431 Millwork 60-551114 Managing offices 1.8
    31-2434 Wood kitchen cabinets 31-337110 Wood kitchen cabinets and countertops 99.6
    31-2435 Hardwood veneer and plywood 31-321212 Hardwood and softwood veneer and plywood 90.5
    31-2435 Hardwood veneer and plywood 60-551114 Managing offices 9.4
    31-2436 Softwood veneer and plywood 31-321212 Hardwood and softwood veneer and plywood. 93.6
    31-2436 Softwood veneer and plywood 60-551114 Managing offices 6.1
    31-2439 Structural wood members, nec 31-321214 Engineered wood members and trusses 98.6
    31-2439 Structural wood members, nec 60-551114 Managing offices 1.2
    31-2448 Wood pallets and skids 31-321920 Wood containers and pallets 99.7
    31-2449 Other wood containers 31-321920 Wood containers and pallets 99.9
    31-2451 Mobile homes 31-321990 All other wood products 99.2
    31-2451 Mobile homes 31-321991 Manufactured homes and mobile homes 99.2
    31-2452 Prefabricated wood buildings 31-321990 All other wood product 99.2
    31-2491 Wood preserving 31-321100 Sawmills and wood preservation 97.5
    31-2491 Wood preserving 60-551114 Managing offices 2.0
    31-2493 Reconstituted wood products 31-321219 Reconstituted wood products (unpublished industry) 98.0
    31-2493 Reconstituted wood products 60-551114 Managing offices 1.7
    31-2499 Wood products, nec 31-321990 All other wood products 56.9
    31-2499 Wood products, nec 31-339990 All other miscellaneous manufacturing 22.7
    31-2499 Wood products, nec 31-321920 Wood containers and pallets 17.0
    31-2499 Wood products, nec 31-333400 HVAC and commercial refrigeration equipment 1.2
    31-2499 Wood products, nec 31-333415 AC, refrigeration, and forced air heating 1.2
    31-2511 Wood household furniture 31-337122 Nonupholstered wood household furniture 95.1
    31-2511 Wood household furniture 31-337215 Showcases, partitions, shelving, and lockers 2.3
    31-2511 Wood household furniture 60-551114 Managing offices 2.1
    31-2512 Upholstered household furniture 31-337121 Upholstered household furniture 96.0
    31-2512 Upholstered household furniture 60-551114 Managing offices 2.1
    31-2512 Upholstered household furniture 43-484122 General freight trucking, long-distance LTL 1.7
    31-2514 Metal household furniture 31-337129 Misc. household and institutional furniture 75.6
    31-2514 Metal household furniture 31-337121 Upholstered household furniture 19.5
    31-2514 Metal household furniture 60-551114 Managing offices 2.6
    31-2514 Metal household furniture 31-337215 Showcases, partitions, shelving, and lockers 2.3
    31-2515 Mattresses and bedsprings 31-337900 Other furniture-related products 87.5
    31-2515 Mattresses and bedsprings 31-337121 Upholstered household furniture 9.5
    31-2515 Mattresses and bedsprings 60-551114 Managing offices 2.8
    31-2519 Wood television & radio cabinets, & household furniture, nec 31-337129 Misc. household and institutional furniture 96.4
    31-2519 Wood television & radio cabinets, & household furniture, nec 60-551114 Managing offices 3.4
    31-2521 Wood office furniture 31-337212 Wood office furniture and custom architectural woodwork and millwork 99.7
    31-2522 Office furniture, except wood 31-337214 Office furniture, except wood 98.7
    31-2522 Office furniture, except wood 60-551114 Managing offices 1.2
    31-2531 Public building and related furniture 31-336360 Motor vehicle seating and interior trim 58.0
    31-2531 Public building and related furniture 31-337129 Misc. household and institutional furniture 33.6
    31-2531 Public building and related furniture 31-339940 Office supplies, except paper 4.5
    31-2531 Public building and related furniture 60-551114 Managing offices 3.5
    31-2541 Wood partitions and fixtures 31-337215 Showcases, partitions, shelving, and lockers 50.5
    31-2541 Wood partitions and fixtures 31-337212 Wood office furniture and custom architectural woodwork and millwork 26.0
    31-2541 Wood partitions and fixtures 31-337110 Wood kitchen cabinets and countertops 20.0
    31-2541 Wood partitions and fixtures 31-337129 Misc. household and institutional furniture 3.3
    31-2542 Partitions and fixtures, except wood 31-337215 Showcases, partitions, shelving, and lockers 95.2
    31-2542 Partitions and fixtures, except wood 31-337129 Misc. household and institutional furniture 4.7
    31-2591 Drapery hardware and blinds and shades 31-337900 Other furniture-related products 99.8
    31-2599 Furniture and fixtures, nec 31-337129 Misc. household and institutional furniture 74.7
    31-2599 Furniture and fixtures, nec 31-339100 Medical equipment and supplies 14.1
    31-2599 Furniture and fixtures, nec 60-551114 Managing offices 11.3
    31-3211 Flat glass 31-327211 Flat glass (unpublished industry) 96.1
    31-3211 Flat glass 60-551114 Managing offices 2.6
    31-3211 Flat glass 60-541511 Custom computer programming services 1.3
    31-3221 Glass containers 31-327213 Glass containers 98.7
    31-3221 Glass containers 60-551114 Managing offices 1.2
    31-3229 Pressed and blown glass, nec 31-327212 Other pressed and blown glass and glassware 89.2
    31-3229 Pressed and blown glass, nec 60-541710 Physical, engineering and biological research 4.3
    31-3229 Pressed and blown glass, nec 60-551114 Managing offices 3.4
    31-3229 Pressed and blown glass, nec 60-541340 Engineering and drafting services 1.8
    31-3231 Products of purchased glass 31-327215 Glass products made of purchased glass 96.6
    31-3231 Products of purchased glass 60-551114 Managing offices 3.1
    31-3241 Cement, hydraulic 31-327390 Other cement and concrete products 94.2
    31-3241 Cement, hydraulic 60-551114 Managing offices 5.2
    31-3251 Brick and structural clay tile 31-327120 Clay building material and refractories 95.2
    31-3251 Brick and structural clay tile 60-551114 Managing offices 3.1
    31-3251 Brick and structural clay tile 31-327390 Other cement and concrete products 1.2
    31-3255 Clay refractories 31-327120 Clay building material and refractories 99.7
    31-3259 Ceramic tile and structural clay products, nec 31-327120 Clay building material and refractories 90.4
    31-3259 Ceramic tile and structural clay products, nec 60-551114 Managing offices 9.5
    31-3261 Vitreous plumbing fixtures 31-327110 Pottery, ceramics, and plumbing fixtures 99.6
    31-3264 Porcelain electrical supplies 31-327110 Pottery, ceramics, and plumbing fixtures 94.6
    31-3264 Porcelain electrical supplies 60-541511 Custom computer programming services 3.8
    31-3269 Other pottery products 31-327110 Pottery, ceramics, and plumbing fixtures 97.6
    31-3269 Other pottery products 60-551114 Managing offices 2.2
    31-3271 Concrete block and brick 31-327390 Other cement and concrete products 98.9
    31-3271 Concrete block and brick 60-551114 Managing offices 1.0
    31-3272 Concrete products, nec 31-327390 Other cement and concrete products 90.8
    31-3272 Concrete products, nec 31-327900 Lime, gypsum, and other nonmetallic mineral products 7.6
    31-3273 Ready-mixed concrete 31-327320 Ready-mix concrete 96.2
    31-3273 Ready-mixed concrete 60-551114 Managing offices 2.8
    31-3274 Lime 31-327900 Lime, gypsum, and other nonmetallic mineral products 94.8
    31-3274 Lime 60-551114 Managing offices 5.1
    31-3275 Gypsum products 31-327900 Lime, gypsum, and other nonmetallic mineral products 98.1
    31-3275 Gypsum products 60-551114 Managing offices 1.7
    31-3281 Cut stone and stone products 31-327900 Lime, gypsum, and other nonmetallic mineral products 98.9
    31-3291 Abrasive products 31-327900 Lime, gypsum, and other nonmetallic mineral products 86.5
    31-3291 Abrasive products 31-332999 Misc. fabricated metal products 7.6
    31-3291 Abrasive products 60-541214 Payroll services 2.9
    31-3291 Abrasive products 43-493110 General warehousing and storage 2.6
    31-3295 Minerals, ground or treated 31-327900 Lime, gypsum, and other nonmetallic mineral products 42.1
    31-3295 Minerals, ground or treated 10-212320 Sand, gravel, clay, and refractory mining 36.0
    31-3295 Minerals, ground or treated 10-212390 Other nonmetallic mineral mining 19.5
    31-3295 Minerals, ground or treated 60-551114 Managing offices 2.0
    31-3296 Mineral wool 31-327900 Lime, gypsum, and other nonmetallic mineral products 94.9
    31-3296 Mineral wool 60-551114 Managing offices 2.7
    31-3296 Mineral wool 60-541710 Physical, engineering and biological research 2.0
    31-3297 Nonclay refractories 31-327120 Clay building material and refractories 94.2
    31-3297 Nonclay refractories 60-541710 Physical, engineering and biological research 4.6
    31-3297 Nonclay refractories 60-551114 Managing offices 1.1
    31-3299 Other nonmetallic mineral products 31-327900 Lime, gypsum, and other nonmetallic mineral products 78.5
    31-3299 Other nonmetallic mineral products 31-327110 Pottery, ceramics, and plumbing fixtures 12.6
    31-3299 Other onmetallic mineral products 31-336340 Motor vehicle brake systems 8.0
    31-3312 Blast furnaces and steel mills 31-331100 Iron and steel mills and ferroalloy production 86.3
    31-3312 Blast furnaces and steel mills 31-331220 Rolling and drawing of purchased steel 6.6
    31-3312 Blast furnaces and steel mills 31-331221 Rolled steel shapes 6.6
    31-3312 Blast furnaces and steel mills 32-324190 Asphalt paving and roofing materials and other petroleum and coal products 3.4
    31-3312 Blast furnaces and steel mills 60-551114 Managing offices 3.4
    31-3313 Electrometallurgical products 31-331100 Iron and steel mills and ferroalloy production 99.8
    31-3315 Steel wire and related products 31-331220 Rolling and drawing of purchased steel 58.7
    31-3315 Steel wire and related products 31-332600 Spring and wire products 37.8
    31-3315 Steel wire and related products 60-551114 Managing offices 2.1
    31-3316 Cold finishing of steel shapes 31-331220 Rolling and drawing of purchased steel 98.7
    31-3316 Cold finishing of steel shapes 31-331221 Rolled steel shapes 98.7
    31-3316 Cold finishing of steel shapes 60-551114 Managing offices 1.2
    31-3317 Steel pipe and tubes 31-331210 Iron, steel pipe and tube from purchased steel 99.0
    31-3321 Gray and ductile iron foundries 31-331511 Iron foundries 98.6
    31-3321 Gray and ductile iron foundries 60-551114 Managing offices 1.3
    31-3322 Malleable iron foundries 31-331511 Iron foundries 100.0
    31-3324 Steel investment foundries 31-331513 Steel foundries 97.9
    31-3324 Steel investment foundries 60-551114 Managing offices 1.9
    31-3325 Steel foundries, nec 31-331513 Steel foundries 98.6
    31-3325 Steel foundries, nec 60-551114 Managing offices 1.4
    31-3331 Primary copper 31-331400 Other nonferrous metal production 99.8
    31-3334 Primary aluminum 31-331300 Alumina and aluminum production 100.0
    31-3334 Primary aluminum 31-331312 Primary aluminum production (unpublished industry) 100.0
    31-3339 Primary nonferrous metals, nec 31-331400 Other nonferrous metal production 98.2
    31-3339 Primary nonferrous metals, nec 60-551114 Managing offices 1.2
    31-3341 Secondary nonferrous metals 31-331300 Alumina and aluminum production 41.6
    31-3341 Secondary nonferrous metals 31-331490 Nonferrous metal, except CU and AL, shaping 41.1
    31-3341 Secondary nonferrous metals 31-331420 Rolled, drawn, extruded, and alloyed copper 15.3
    31-3341 Secondary nonferrous metals 60-551114 Managing offices 1.7
    31-3351 Copper rolling and drawing 31-331420 Rolled, drawn, extruded, and alloyed copper 98.2
    31-3353 Aluminum sheet, plate, and foil 31-331300 Alumina and aluminum production 93.4
    31-3353 Aluminum sheet, plate, and foil 31-331315 Aluminum sheet, plate, and foil (unpublished industry) 93.4
    31-3353 Aluminum sheet, plate, and foil 60-551114 Managing offices 6.6
    31-3354 Aluminum extruded products 31-331300 Alumina and aluminum production 96.5
    31-3354 Aluminum extruded products 60-551114 Managing offices 2.2
    31-3354 Aluminum extruded products 60-541380 Testing laboratories 1.2
    31-3356 Aluminum and nonferrous rolling and drawing, nec 31-331490 Nonferrous metal, except CU and AL, shaping 80.4
    31-3356 Aluminum and nonferrous rolling and drawing, nec 31-331300 Alumina and aluminum production 16.4
    31-3356 Aluminum and nonferrous rolling and drawing, nec 60-551114 Managing offices 3.2
    31-3357 Nonferrous wire drawing and insulating 31-331420 Rolled, drawn, extruded, and alloyed copper 35.5
    31-3357 Nonferrous wire drawing and insulating 31-335921 Fiber optic cables (unpublished industry) 27.6
    31-3357 Nonferrous wire drawing and insulating 31-335929 Other communication and energy wires (unpublished industry) 18.2
    31-3357 Nonferrous wire drawing and insulating 31-331300 Alumina and aluminum production 12.4
    31-3357 Nonferrous wire drawing and insulating 31-331490 Nonferrous metal, except CU and AL, shaping 4.6
    31-3357 Nonferrous wire drawing and insulating 60-551114 Managing offices 1.5
    31-3363 Aluminum die-castings 31-331520 Nonferrous metal foundries 99.2
    31-3364 Nonferrous die-castings, except aluminum 31-331520 Nonferrous metal foundries 100.0
    31-3365 Aluminum foundries 31-331520 Nonferrous metal foundries 99.7
    31-3366 Copper foundries 31-331520 Nonferrous metal foundries 98.3
    31-3366 Copper foundries 60-551114 Managing offices 1.7
    31-3369 Nonferrous foundries, nec 31-331520 Nonferrous metal foundries 99.7
    31-3398 Metal heat treating 31-332812 Metal heat treating, and coating and nonprecious engraving 99.9
    31-3399 Primary metal products, nec 31-331490 Nonferrous metal, except CU and AL, shaping 37.1
    31-3399 Primary metal products, nec 31-331220 Rolling and drawing of purchased steel 27.9
    31-3399 Primary metal products, nec 31-331221 Rolled steel shapes 27.9
    31-3399 Primary metal products, nec 31-332600 Spring and wire products 9.7
    31-3399 Primary metal products, nec 31-332813 Electroplating, anodizing, and coloring metals 8.7
    31-3399 Primary metal products, nec 31-331300 Alumina and aluminum production 7.1
    31-3399 Primary metal products, nec 31-331420 Rolled, drawn, extruded, and alloyed copper 6.8
    31-3399 Primary metal products, nec 60-551114 Managing offices 2.2
    31-3411 Metal cans 31-332400 Boilers, tanks, and shipping containers 96.5
    31-3411 Metal cans 60-551114 Managing offices 3.2
    31-3412 Metal barrels, drums, and pails 31-332400 Boilers, tanks, and shipping containers 98.9
    31-3412 Metal barrels, drums, and pails 60-551114 Managing offices 1.1
    31-3421 Cutlery 31-332200 Cutlery and hand tools 98.1
    31-3421 Cutlery 31-332212 Hand and edge tools 3.4
    31-3421 Cutlery 60-551114 Managing offices 1.9
    31-3425 Hand and edge tools, and blades and handsaws 31-332200 Cutlery and hand tools 97.3
    31-3425 Hand and edge tools, and blades and handsaws 31-332212 Hand and edge tools 79.6
    31-3425 Hand and edge tools, and blades and handsaws 60-551114 Managing offices 1.1
    31-3429 Hardware, nec 31-332500 Hardware 74.2
    31-3429 Hardware, nec 31-332999 Misc. fabricated metal products 6.4
    31-3429 Hardware, nec 31-332722 Bolts, nuts, screws, rivets, and washers 4.9
    31-3429 Hardware, nec 31-336399 All other motor vehicle parts 4.8
    31-3429 Hardware, nec 31-332919 Industrial valves and other metal valves and pipe fittings 3.6
    31-3429 Hardware, nec 31-337215 Showcases, partitions, shelving, and lockers 2.3
    31-3429 Hardware, nec 31-333920 Material handling equipment 1.9
    31-3429 Hardware, nec 31-333923 Overhead cranes, hoists, and monorail systems (unpublished industry) 1.9
    31-3429 Hardware, nec 31-332400 Boilers, tanks, and shipping containers 1.4
    31-3431 Metal sanitary ware 31-332999 Misc. fabricated metal products 99.5
    31-3432 Plumbing fixture fittings and trims 31-332913 Plumbing fixture fittings and trims 81.7
    31-3432 Plumbing fixture fittings and trims 31-332919 Industrial valves and other metal valves and pipe fittings 13.1
    31-3432 Plumbing fixture fittings and trims 60-551114 Managing offices 2.6
    31-3433 Heating equipment, except electric 31-333400 HVAC and commercial refrigeration equipment 95.8
    31-3433 Heating equipment, except electric 41-423710 Hardware 2.7
    31-3433 Heating equipment, except electric 60-551114 Managing offices 1.4
    31-3441 Fabricated structural metal 31-332312 Fabricated structural metal products 98.9
    31-3441 Fabricated structural metal 60-551114 Managing offices 1.0
    31-3442 Metal doors, sash, and trim 31-332321 Metal windows and doors 98.8
    31-3442 Metal doors, sash, and trim 60-551114 Managing offices 1.1
    31-3443 Fabricated plate work (boiler shops) 31-332313 Plate work 51.4
    31-3443 Fabricated plate work (boiler shops) 31-332400 Boilers, tanks, and shipping containers 46.4
    31-3443 Fabricated plate work (boiler shops) 60-551114 Managing offices 1.3
    31-3444 Sheet metal work 31-332322 Sheet metal work 85.5
    31-3444 Sheet metal work 31-332400 Boilers, tanks, and shipping containers 9.6
    31-3444 Sheet metal work 31-333400 HVAC and commercial refrigeration equipment 3.7
    31-3444 Sheet metal work 31-333415 AC, refrigeration, and forced air heating 3.7
    31-3446 Architectural metal work 31-332323 Ornamental and architectural metal work 99.3
    31-3448 Prefabricated metal buildings 31-332311 Prefabricated metal buildings and components 97.4
    31-3448 Prefabricated metal buildings 60-551114 Managing offices 2.4
    31-3449 Miscellaneous metal work 31-332100 Forging and stamping 39.7
    31-3449 Miscellaneous metal work 31-332312 Fabricated structural metal products 38.4
    31-3449 Miscellaneous metal work 31-332321 Metal windows and doors 14.9
    31-3449 Miscellaneous metal work 31-332323 Ornamental and architectural metal work 7.0
    31-3451 Screw machine products 31-332721 Precision turned products 99.8
    31-3452 Bolts, nuts, rivets, and washers 31-332722 Bolts, nuts, screws, rivets, and washers 97.1
    31-3452 Bolts, nuts, rivets, and washers 60-551114 Managing offices 2.4
    31-3462 Iron and steel forgings 31-332100 Forging and stamping 99.4
    31-3462 Iron and steel forgings 31-332111 Iron and steel forging 99.4
    31-3465 Automotive stampings 31-336370 Motor vehicle metal stamping 98.6
    31-3466 Nonferrous forgings, crowns, and closures 31-332100 Forging and stamping 99.8
    31-3469 Metal stampings, nec 31-332100 Forging and stamping 87.4
    31-3469 Metal stampings, nec 31-332116 Metal stamping 87.4
    31-3469 Metal stampings, nec 31-332200 Cutlery and hand tools 6.3
    31-3469 Metal stampings, nec 31-332400 Boilers, tanks, and shipping containers 5.2
    31-3471 Plating and polishing 31-332813 Electroplating, anodizing, and coloring metals 99.9
    31-3479 Metal coating and allied services 31-332812 Metal heat treating, and coating and nonprecious engraving 97.1
    31-3479 Metal coating and allied services 31-339910 Jewelry and silverware 2.7
    31-3483 Ammunition, except for small arms, nec 31-332995 Small arms, ammunition, and other ordnance and accessories 99.9
    31-3489 Small arms, small arms ammunition, & other ordnance & accessories, nec 31-332995 Small arms, ammunition, and other ordnance and accessories 99.8
    31-3491 Industrial valves 31-332919 Industrial valves and other metal valves and pipe fittings 96.2
    31-3491 Industrial valves 60-551114 Managing offices 3.8
    31-3492 Fluid power valves and hose fittings 31-332912 Fluid power valves and hose fittings 97.6
    31-3492 Fluid power valves and hose fittings 60-551114 Managing offices 1.7
    31-3494 Valves and pipe fittings, nec 31-332919 Industrial valves and other metal valves and pipe fittings 89.5
    31-3494 Valves and pipe fittings, nec 31-332999 Misc. fabricated metal products 8.7
    31-3494 Valves and pipe fittings, nec 60-551114 Managing offices 1.1
    31-3495 Steel springs 31-332600 Spring and wire products 97.3
    31-3495 Steel springs 60-551114 Managing offices 1.7
    31-3496 Miscellaneous fabricated wire products 31-332600 Spring and wire products 95.4
    31-3496 Miscellaneous fabricated wire products 31-333920 Material handling equipment 2.7
    31-3498 Fabricated pipe and fittings 31-332999 Misc. fabricated metal products 98.8
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-332999 Misc. fabricated metal products 61.9
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-332100 Forging and stamping 15.5
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-336360 Motor vehicle seating and interior trim 5.5
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-332400 Boilers, tanks, and shipping containers 5.0
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-332500 Hardware 3.2
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-337215 Showcases, partitions, shelving, and lockers 2.9
    31-3499 Metal foil and leaf, and fabricated metal products, nec 32-322226 Misc. coated and treated paper and paper bags 2.8
    31-3499 Metal foil and leaf, and fabricated metal products, nec 31-332919 Industrial valves and other metal valves and pipe fittings 2.7
    31-3511 Turbines and turbine generator sets 31-333611 Turbine and turbine generator set units 83.8
    31-3511 Turbines and turbine generator sets 60-541710 Physical, engineering and biological research 10.8
    31-3511 Turbines and turbine generator sets 60-551114 Managing offices 3.5
    31-3519 Internal combustion engines, nec 31-333618 Power transmission and other misc. engine equipment 90.2
    31-3519 Internal combustion engines, nec 60-541710 Physical, engineering and biological research 3.8
    31-3519 Internal combustion engines, nec 60-551114 Managing offices 3.2
    31-3519 Internal combustion engines, nec 31-336399 All other motor vehicle parts 2.8
    31-3523 Farm machinery and equipment 31-333111 Farm machinery and equipment 87.5
    31-3523 Farm machinery and equipment 31-332323 Ornamental and architectural metal work 4.1
    31-3523 Farm machinery and equipment 60-551114 Managing offices 3.5
    31-3523 Farm machinery and equipment 31-332212 Hand and edge tools 2.8
    31-3523 Farm machinery and equipment 31-333920 Material handling equipment 2.0
    31-3523 Farm machinery and equipment 31-333922 Conveyor and conveying equipment 2.0
    31-3524 Lawn and garden equipment 31-333112 Lawn and garden equipment (unpublished industry) 87.6
    31-3524 Lawn and garden equipment 60-551114 Managing offices 5.2
    31-3524 Lawn and garden equipment 31-332200 Cutlery and hand tools 5.1
    31-3524 Lawn and garden equipment 31-332212 Hand and edge tools 5.1
    31-3524 Lawn and garden equipment 43-493110 General warehousing and storage 1.1
    31-3531 Construction machinery 31-333120 Construction machinery 86.4
    31-3531 Construction machinery 31-333920 Material handling equipment 10.8
    31-3531 Construction machinery 31-333923 Overhead cranes, hoists, and monorail systems (unpublished industry) 10.8
    31-3531 Construction machinery 31-336500 Railroad rolling stock (unpublished industry) 1.7
    31-3532 Mining machinery 31-333130 Mining and oil and gas field machinery 99.3
    31-3533 Oil and gas field machinery 31-333130 Mining and oil and gas field machinery 99.5
    31-3534 Elevators and moving stairways 31-333920 Material handling equipment 91.7
    31-3534 Elevators and moving stairways 60-551114 Managing offices 8.3
    31-3535 Conveyors and conveying equipment 31-333920 Material handling equipment 98.5
    31-3535 Conveyors and conveying equipment 31-333922 Conveyor and conveying equipment 98.5
    31-3535 Conveyors and conveying equipment 60-551114 Managing offices 1.4
    31-3536 Hoists, cranes, and monorails 31-333920 Material handling equipment 99.7
    31-3536 Hoists, cranes, and monorails 31-333923 Overhead cranes, hoists, and monorail systems (unpublished industry) 99.7
    31-3537 Industrial trucks and tractors 31-333920 Material handling equipment 86.2
    31-3537 Industrial trucks and tractors 31-332400 Boilers, tanks, and shipping containers 5.2
    31-3537 Industrial trucks and tractors 31-332999 Misc. fabricated metal products 5.1
    31-3537 Industrial trucks and tractors 60-551114 Managing offices 3.5
    31-3541 Machine tools, metal cutting types 31-333513 Metal cutting and forming machine tools 98.7
    31-3541 Machine tools, metal cutting types 60-551114 Managing offices 1.3
    31-3542 Machine tools, metal forming types 31-333513 Metal cutting and forming machine tools 97.4
    31-3542 Machine tools, metal forming types 41-423690 Electric appliance and other electronic parts 1.0
    31-3543 Industrial patterns 31-332999 Misc. fabricated metal products 99.9
    31-3544 Special dies, tools, jigs, and fixtures 31-333514 Special tools, dies, jigs, and fixtures 65.5
    31-3544 Special dies, tools, jigs, and fixtures 31-333511 Industrial molds 34.2
    31-3545 Machine tool accessories 31-333518 Misc. metalworking machinery 78.0
    31-3545 Machine tool accessories 31-332200 Cutlery and hand tools 21.0
    31-3545 Machine tool accessories 31-332212 Hand and edge tools 21.0
    31-3546 Power driven handtools 31-333990 All other general purpose machinery 94.0
    31-3546 Power driven handtools 60-551114 Managing offices 3.6
    31-3546 Power driven handtools 43-493110 General warehousing and storage 2.3
    31-3548 Welding apparatus 31-333990 All other general purpose machinery 97.6
    31-3548 Welding apparatus 31-335311 Electric power and specialty transformers 1.8
    31-3549 Rolling mill and metalworking machinery, nec 31-333518 Misc. metalworking machinery 99.0
    31-3552 Textile machinery 31-333200 Industrial machinery 100.0
    31-3553 Woodworking machinery 31-333200 Industrial machinery 99.4
    31-3554 Paper industries machinery 31-333200 Industrial machinery 100.0
    31-3555 Printing trades machinery 31-333200 Industrial machinery 97.5
    31-3555 Printing trades machinery 60-551114 Managing offices 2.5
    31-3556 Food products machinery 31-333200 Industrial machinery 95.4
    31-3556 Food products machinery 60-551114 Managing offices 3.9
    31-3559 Special industry machinery, nec 31-333200 Industrial machinery 90.6
    31-3559 Special industry machinery, nec 31-333295 Semiconductor machinery 29.8
    31-3559 Special industry machinery, nec 31-333319 Misc. commercial and service industry machinery 5.9
    31-3561 Pumps and pumping equipment 31-333913 Pumps and pumping equip., including measuring and dispensing 99.7
    31-3562 Ball and roller bearings 31-332991 Ball and roller bearings 97.4
    31-3562 Ball and roller bearings 60-551114 Managing offices 1.9
    31-3563 Air and gas compressors 31-333912 Air and gas compressors 98.4
    31-3563 Air and gas compressors 60-551114 Managing offices 1.5
    31-3564 Blowers and fans 31-333400 HVAC and commercial refrigeration equipment 96.4
    31-3564 Blowers and fans 60-551114 Managing offices 3.3
    31-3565 Packaging machinery 31-333990 All other general purpose machinery 98.0
    31-3565 Packaging machinery 60-551114 Managing offices 1.8
    31-3566 Speed changers, drives, and gears 31-333618 Power transmission and other misc. engine equipment 95.9
    31-3566 Speed changers, drives, and gears 60-551114 Managing offices 4.1
    31-3567 Industrial furnaces and ovens 31-333990 All other general purpose machinery 97.9
    31-3567 Industrial furnaces and ovens 60-551114 Managing offices 1.8
    31-3568 Power transmission equipment, nec 31-333618 Power transmission and other misc. engine equipment 98.9
    31-3569 General industrial machinery, nec 31-333990 All other general purpose machinery 92.0
    31-3569 General industrial machinery, nec 32-314990 All other textile product mills 3.6
    31-3569 General industrial machinery, nec 31-333400 HVAC and commercial refrigeration equipment 3.2
    31-3571 Electronic computers 31-334111 Electronic computers 87.4
    31-3571 Electronic computers 60-551114 Managing offices 5.5
    31-3571 Electronic computers 41-423430 Computer and software 3.8
    31-3571 Electronic computers 60-541710 Physical, engineering and biological research 1.2
    31-3572 Computer storage devices 31-334112 Computer storage devices 90.3
    31-3572 Computer storage devices 60-541710 Physical, engineering and biological research 4.8
    31-3572 Computer storage devices 60-551114 Managing offices 4.0
    31-3577 Computer peripheral equipment, nec 31-334119 Other computer peripheral equipment 96.2
    31-3577 Computer peripheral equipment, nec 31-334418 Printed circuit assemblies 2.8
    31-3579 Computer terminals, calculators, and office machines, nec 31-334113 Computer terminals 44.7
    31-3579 Computer terminals, calculators, and office machines, nec 31-333313 Office machinery 27.0
    31-3579 Computer terminals, calculators, and office machines, nec 31-334119 Other computer peripheral equipment 9.2
    31-3579 Computer terminals, calculators, and office machines, nec 60-551114 Managing offices 8.2
    31-3579 Computer terminals, calculators, and office machines, nec 31-334519 Misc. electronic instruments 4.7
    31-3579 Computer terminals, calculators, and office machines, nec 31-339940 Office supplies, except paper 2.8
    31-3579 Computer terminals, calculators, and office machines, nec 31-333319 Misc. commercial and service industry machinery 2.2
    31-3581 Automatic vending machines 31-333319 Misc. commercial and service industry machinery 99.4
    31-3582 Commercial laundry equipment 31-333319 Misc. commercial and service industry machinery 99.9
    31-3585 Refrigeration and heating equipment 31-333400 HVAC and commercial refrigeration equipment 86.4
    31-3585 Refrigeration and heating equipment 31-333415 AC, refrigeration, and forced air heating 86.4
    31-3585 Refrigeration and heating equipment 31-336391 Motor vehicle air-conditioning (unpublished industry) 12.8
    31-3589 Measuring & dispensing pumps, & service industry machinery, nec 31-333319 Misc. commercial and service industry machinery 90.9
    31-3589 Measuring & dispensing pumps, & service industry machinery, nec 31-333913 Pumps and pumping equip., including measuring and dispensing 8.1
    31-3592 Carburetors, pistons, rings, valves 31-336311 Carburetors, pistons, rings, and valves 96.5
    31-3592 Carburetors, pistons, rings, valves 60-541213 Tax preparation services 1.7
    31-3592 Carburetors, pistons, rings, valves 60-551114 Managing offices 1.3
    31-3593 Fluid power cylinders and actuators 31-333990 All other general purpose machinery 99.6
    31-3594 Fluid power pumps and motors 31-333990 All other general purpose machinery 99.8
    31-3599 Scales, balances, and industrial machinery, nec 31-332710 Machine shops 84.7
    31-3599 Scales, balances, and industrial machinery, nec 31-333990 All other general purpose machinery 6.2
    31-3599 Scales, balances, and industrial machinery, nec 31-332813 Electroplating, anodizing, and coloring metals 3.0
    31-3599 Scales, balances, and industrial machinery, nec 31-332999 Misc. fabricated metal products 2.4
    31-3599 Scales, balances, and industrial machinery, nec 31-333319 Misc. commercial and service industry machinery 2.1
    31-3612 Transformers, except electronic 31-335311 Electric power and specialty transformers 99.5
    31-3613 Switchgear and switchboard apparatus 31-335313 Switchgear and switchboard apparatus 94.8
    31-3613 Switchgear and switchboard apparatus 60-551114 Managing offices 3.4
    31-3613 Switchgear and switchboard apparatus 60-541380 Testing laboratories 1.0
    31-3621 Motors and generators 31-335312 Motors and generators 99.5
    31-3624 Carbon and graphite products 31-335990 Other electrical equipment and components 97.1
    31-3624 Carbon and graphite products 60-551114 Managing offices 2.8
    31-3625 Relays and industrial controls 31-335314 Relays and industrial controls 98.0
    31-3625 Relays and industrial controls 60-551114 Managing offices 1.8
    31-3629 Electrical industrial apparatus, nec 31-335990 Other electrical equipment and components 98.2
    31-3631 Household cooking equipment 31-335221 Household cooking appliances 96.7
    31-3631 Household cooking equipment 60-551114 Managing offices 2.3
    31-3632 Household refrigerators and freezers 31-335222 Household refrigerators and home freezers 93.5
    31-3632 Household refrigerators and freezers 43-493110 General warehousing and storage 1.6
    31-3632 Household refrigerators and freezers 60-551114 Managing offices 1.5
    31-3632 Household refrigerators and freezers 60-541380 Testing laboratories 1.0
    31-3633 Household laundry equipment 31-335224 Household laundry equipment (unpublished industry) 97.1
    31-3633 Household laundry equipment 43-493110 General warehousing and storage 2.2
    31-3634 Electric housewares and fans 31-335211 Electric housewares and household fans 74.9
    31-3634 Electric housewares and fans 31-333400 HVAC and commercial refrigeration equipment 12.5
    31-3634 Electric housewares and fans 60-551114 Managing offices 5.8
    31-3634 Electric housewares and fans 43-493110 General warehousing and storage 4.5
    31-3634 Electric housewares and fans 31-333319 Misc. commercial and service industry machinery 2.2
    31-3639 Household vacuum cleaners and appliances, nec 31-335228 Other major household appliances (unpublished industry) 53.3
    31-3639 Household vacuum cleaners and appliances, nec 31-335212 Household vacuum cleaners (unpublished industry) 44.8
    31-3641 Electric lamps 31-335110 Electric lamp bulbs and parts 98.3
    31-3643 Current-carrying wiring devices 31-335931 Current-carrying wiring devices 95.5
    31-3643 Current-carrying wiring devices 60-551114 Managing offices 4.0
    31-3644 Noncurrent-carrying wiring devices 31-335932 Noncurrent-carrying wiring devices (unpublished industry) 91.4
    31-3644 Noncurrent-carrying wiring devices 31-332200 Cutlery and hand tools 7.4
    31-3644 Noncurrent-carrying wiring devices 31-332212 Hand and edge tools 7.4
    31-3645 Residential lighting fixtures 31-335120 Lighting fixtures 98.9
    31-3646 Commercial lighting fixtures 31-335120 Lighting fixtures 98.5
    31-3647 Vehicular lighting equipment 31-336321 Vehicular lighting equipment 100.0
    31-3648 Lighting equipment, nec 31-335120 Lighting fixtures 96.2
    31-3648 Lighting equipment, nec 43-493110 General warehousing and storage 3.2
    31-3651 Household audio and video equipment 31-334300 Audio and video equipment 94.3
    31-3651 Household audio and video equipment 60-551114 Managing offices 4.9
    31-3652 Prerecorded records and tapes 31-334600 Magnetic media manufacturing and reproduction 67.5
    31-3652 Prerecorded records and tapes 50-512200 Sound recording industries 24.4
    31-3652 Prerecorded records and tapes 60-551114 Managing offices 8.0
    31-3661 Telephone and telegraph apparatus 31-334200 Communications equipment 84.0
    31-3661 Telephone and telegraph apparatus 31-334210 Telephone apparatus 84.0
    31-3661 Telephone and telegraph apparatus 31-334418 Printed circuit assemblies 12.5
    31-3661 Telephone and telegraph apparatus 60-551114 Managing offices 2.3
    31-3663 Radio and television communications equipment 31-334200 Communications equipment 82.8
    31-3663 Radio and television communications equipment 31-334220 Broadcast and wireless communications equip. 82.8
    31-3663 Radio and television communications equipment 60-541710 Physical, engineering and biological research 16.1
    31-3669 Communications equipment, nec 31-334200 Communications equipment 98.2
    31-3669 Communications equipment, nec 60-551114 Managing offices 1.2
    31-3671 Electron tubes 31-334411 Electron tubes 99.7