| A | Agriculture, forestry and fishing | A | | | | 1 |
| A 01 | Crop and animal production, hunting and related service activities | A | 01 | | | 2 |
| A 011 | Growing of non-perennial crops | A | 01 | 011 | | 3 |
| A 0111 | Growing of cereals (except rice), leguminous crops and oil seeds | A | 01 | 011 | 0111 | 4 |
| A 0112 | Growing of rice | A | 01 | 011 | 0112 | 4 |
| A 0113 | Growing of vegetables and melons, roots and tubers | A | 01 | 011 | 0113 | 4 |
| A 0114 | Growing of sugar cane | A | 01 | 011 | 0114 | 4 |
| A 0115 | Growing of tobacco | A | 01 | 011 | 0115 | 4 |
| A 0116 | Growing of fibre crops | A | 01 | 011 | 0116 | 4 |
| A 0119 | Growing of other non-perennial crops | A | 01 | 011 | 0119 | 4 |
| A 012 | Growing of perennial crops | A | 01 | 012 | | 3 |
| A 0121 | Growing of grapes | A | 01 | 012 | 0121 | 4 |
| A 0122 | Growing of tropical and subtropical fruits | A | 01 | 012 | 0122 | 4 |
| A 0123 | Growing of citrus fruits | A | 01 | 012 | 0123 | 4 |
| A 0124 | Growing of pome fruits and stone fruits | A | 01 | 012 | 0124 | 4 |
| A 0125 | Growing of other tree and bush fruits and nuts | A | 01 | 012 | 0125 | 4 |
| A 0126 | Growing of oleaginous fruits | A | 01 | 012 | 0126 | 4 |
| A 0127 | Growing of beverage crops | A | 01 | 012 | 0127 | 4 |
| A 0128 | Growing of spices, aromatic, drug and pharmaceutical crops | A | 01 | 012 | 0128 | 4 |
| A 0129 | Growing of other perennial crops | A | 01 | 012 | 0129 | 4 |
| A 013 | Plant propagation | A | 01 | 013 | | 3 |
| A 0130 | Plant propagation | A | 01 | 013 | 0130 | 4 |
| A 014 | Animal production | A | 01 | 014 | | 3 |
| A 0141 | Raising of cattle and buffaloes | A | 01 | 014 | 0141 | 4 |
| A 0142 | Raising of horses and other equines | A | 01 | 014 | 0142 | 4 |
| A 0143 | Raising of camels and camelids | A | 01 | 014 | 0143 | 4 |
| A 0144 | Raising of sheep and goats | A | 01 | 014 | 0144 | 4 |
| A 0145 | Raising of swine/pigs | A | 01 | 014 | 0145 | 4 |
| A 0146 | Raising of poultry | A | 01 | 014 | 0146 | 4 |
| A 0149 | Raising of other animals | A | 01 | 014 | 0149 | 4 |
| A 015 | Mixed farming | A | 01 | 015 | | 3 |
| A 0150 | Mixed farming | A | 01 | 015 | 0150 | 4 |
| A 016 | Support activities to agriculture and post-harvest crop activities | A | 01 | 016 | | 3 |
| A 0161 | Support activities for crop production | A | 01 | 016 | 0161 | 4 |
| A 0162 | Support activities for animal production | A | 01 | 016 | 0162 | 4 |
| A 0163 | Post-harvest crop activities | A | 01 | 016 | 0163 | 4 |
| A 0164 | Seed processing for propagation | A | 01 | 016 | 0164 | 4 |
| A 017 | Hunting, trapping and related service activities | A | 01 | 017 | | 3 |
| A 0170 | Hunting, trapping and related service activities | A | 01 | 017 | 0170 | 4 |
| A 02 | Forestry and logging | A | 02 | | | 2 |
| A 021 | Silviculture and other forestry activities | A | 02 | 021 | | 3 |
| A 0210 | Silviculture and other forestry activities | A | 02 | 021 | 0210 | 4 |
| A 022 | Logging | A | 02 | 022 | | 3 |
| A 0220 | Logging | A | 02 | 022 | 0220 | 4 |
| A 023 | Gathering of non-wood forest products | A | 02 | 023 | | 3 |
| A 0230 | Gathering of non-wood forest products | A | 02 | 023 | 0230 | 4 |
| A 024 | Support services to forestry | A | 02 | 024 | | 3 |
| A 0240 | Support services to forestry | A | 02 | 024 | 0240 | 4 |
| A 03 | Fishing and aquaculture | A | 03 | | | 2 |
| A 031 | Fishing | A | 03 | 031 | | 3 |
| A 0311 | Marine fishing | A | 03 | 031 | 0311 | 4 |
| A 0312 | Freshwater fishing | A | 03 | 031 | 0312 | 4 |
| A 032 | Aquaculture | A | 03 | 032 | | 3 |
| A 0321 | Marine aquaculture | A | 03 | 032 | 0321 | 4 |
| A 0322 | Freshwater aquaculture | A | 03 | 032 | 0322 | 4 |
| B | Mining and quarrying | B | | | | 1 |
| B 05 | Mining of coal and lignite | B | 05 | | | 2 |
| B 051 | Mining of hard coal | B | 05 | 051 | | 3 |
| B 0510 | Mining of hard coal | B | 05 | 051 | 0510 | 4 |
| B 052 | Mining of lignite | B | 05 | 052 | | 3 |
| B 0520 | Mining of lignite | B | 05 | 052 | 0520 | 4 |
| B 06 | Extraction of crude petroleum and natural gas | B | 06 | | | 2 |
| B 061 | Extraction of crude petroleum | B | 06 | 061 | | 3 |
| B 0610 | Extraction of crude petroleum | B | 06 | 061 | 0610 | 4 |
| B 062 | Extraction of natural gas | B | 06 | 062 | | 3 |
| B 0620 | Extraction of natural gas | B | 06 | 062 | 0620 | 4 |
| B 07 | Mining of metal ores | B | 07 | | | 2 |
| B 071 | Mining of iron ores | B | 07 | 071 | | 3 |
| B 0710 | Mining of iron ores | B | 07 | 071 | 0710 | 4 |
| B 072 | Mining of non-ferrous metal ores | B | 07 | 072 | | 3 |
| B 0721 | Mining of uranium and thorium ores | B | 07 | 072 | 0721 | 4 |
| B 0729 | Mining of other non-ferrous metal ores | B | 07 | 072 | 0729 | 4 |
| B 08 | Other mining and quarrying | B | 08 | | | 2 |
| B 081 | Quarrying of stone, sand and clay | B | 08 | 081 | | 3 |
| B 0810 | Quarrying of stone, sand and clay | B | 08 | 081 | 0810 | 4 |
| B 089 | Mining and quarrying n.e.c. | B | 08 | 089 | | 3 |
| B 0891 | Mining of chemical and fertilizer minerals | B | 08 | 089 | 0891 | 4 |
| B 0892 | Extraction of peat | B | 08 | 089 | 0892 | 4 |
| B 0893 | Extraction of salt | B | 08 | 089 | 0893 | 4 |
| B 0899 | Other mining and quarrying n.e.c. | B | 08 | 089 | 0899 | 4 |
| B 09 | Mining support service activities | B | 09 | | | 2 |
| B 091 | Support activities for petroleum and natural gas extraction | B | 09 | 091 | | 3 |
| B 0910 | Support activities for petroleum and natural gas extraction | B | 09 | 091 | 0910 | 4 |
| B 099 | Support activities for other mining and quarrying | B | 09 | 099 | | 3 |
| B 0990 | Support activities for other mining and quarrying | B | 09 | 099 | 0990 | 4 |
| C | Manufacturing | C | | | | 1 |
| C 10 | Manufacture of food products | C | 10 | | | 2 |
| C 101 | Processing and preserving of meat | C | 10 | 101 | | 3 |
| C 1010 | Processing and preserving of meat | C | 10 | 101 | 1010 | 4 |
| C 102 | Processing and preserving of fish, crustaceans and molluscs | C | 10 | 102 | | 3 |
| C 1020 | Processing and preserving of fish, crustaceans and molluscs | C | 10 | 102 | 1020 | 4 |
| C 103 | Processing and preserving of fruit and vegetables | C | 10 | 103 | | 3 |
| C 1030 | Processing and preserving of fruit and vegetables | C | 10 | 103 | 1030 | 4 |
| C 104 | Manufacture of vegetable and animal oils and fats | C | 10 | 104 | | 3 |
| C 1040 | Manufacture of vegetable and animal oils and fats | C | 10 | 104 | 1040 | 4 |
| C 105 | Manufacture of dairy products | C | 10 | 105 | | 3 |
| C 1050 | Manufacture of dairy products | C | 10 | 105 | 1050 | 4 |
| C 106 | Manufacture of grain mill products, starches and starch products | C | 10 | 106 | | 3 |
| C 1061 | Manufacture of grain mill products | C | 10 | 106 | 1061 | 4 |
| C 1062 | Manufacture of starches and starch products | C | 10 | 106 | 1062 | 4 |
| C 107 | Manufacture of other food products | C | 10 | 107 | | 3 |
| C 1071 | Manufacture of bakery products | C | 10 | 107 | 1071 | 4 |
| C 1072 | Manufacture of sugar | C | 10 | 107 | 1072 | 4 |
| C 1073 | Manufacture of cocoa, chocolate and sugar confectionery | C | 10 | 107 | 1073 | 4 |
| C 1074 | Manufacture of macaroni, noodles, couscous and similar farinaceous products | C | 10 | 107 | 1074 | 4 |
| C 1075 | Manufacture of prepared meals and dishes | C | 10 | 107 | 1075 | 4 |
| C 1079 | Manufacture of other food products n.e.c. | C | 10 | 107 | 1079 | 4 |
| C 108 | Manufacture of prepared animal feeds | C | 10 | 108 | | 3 |
| C 1080 | Manufacture of prepared animal feeds | C | 10 | 108 | 1080 | 4 |
| C 11 | Manufacture of beverages | C | 11 | | | 2 |
| C 110 | Manufacture of beverages | C | 11 | 110 | | 3 |
| C 1101 | Distilling, rectifying and blending of spirits | C | 11 | 110 | 1101 | 4 |
| C 1102 | Manufacture of wines | C | 11 | 110 | 1102 | 4 |
| C 1103 | Manufacture of malt liquors and malt | C | 11 | 110 | 1103 | 4 |
| C 1104 | Manufacture of soft drinks; production of mineral waters and other bottled waters | C | 11 | 110 | 1104 | 4 |
| C 12 | Manufacture of tobacco products | C | 12 | | | 2 |
| C 120 | Manufacture of tobacco products | C | 12 | 120 | | 3 |
| C 1200 | Manufacture of tobacco products | C | 12 | 120 | 1200 | 4 |
| C 13 | Manufacture of textiles | C | 13 | | | 2 |
| C 131 | Spinning, weaving and finishing of textiles | C | 13 | 131 | | 3 |
| C 1311 | Preparation and spinning of textile fibres | C | 13 | 131 | 1311 | 4 |
| C 1312 | Weaving of textiles | C | 13 | 131 | 1312 | 4 |
| C 1313 | Finishing of textiles | C | 13 | 131 | 1313 | 4 |
| C 139 | Manufacture of other textiles | C | 13 | 139 | | 3 |
| C 1391 | Manufacture of knitted and crocheted fabrics | C | 13 | 139 | 1391 | 4 |
| C 1392 | Manufacture of made-up textile articles, except apparel | C | 13 | 139 | 1392 | 4 |
| C 1393 | Manufacture of carpets and rugs | C | 13 | 139 | 1393 | 4 |
| C 1394 | Manufacture of cordage, rope, twine and netting | C | 13 | 139 | 1394 | 4 |
| C 1399 | Manufacture of other textiles n.e.c. | C | 13 | 139 | 1399 | 4 |
| C 14 | Manufacture of wearing apparel | C | 14 | | | 2 |
| C 141 | Manufacture of wearing apparel, except fur apparel | C | 14 | 141 | | 3 |
| C 1410 | Manufacture of wearing apparel, except fur apparel | C | 14 | 141 | 1410 | 4 |
| C 142 | Manufacture of articles of fur | C | 14 | 142 | | 3 |
| C 1420 | Manufacture of articles of fur | C | 14 | 142 | 1420 | 4 |
| C 143 | Manufacture of knitted and crocheted apparel | C | 14 | 143 | | 3 |
| C 1430 | Manufacture of knitted and crocheted apparel | C | 14 | 143 | 1430 | 4 |
| C 15 | Manufacture of leather and related products | C | 15 | | | 2 |
| C 151 | Tanning and dressing of leather; manufacture of luggage, handbags, saddlery and harness; dressing and dyeing of fur | C | 15 | 151 | | 3 |
| C 1511 | Tanning and dressing of leather; dressing and dyeing of fur | C | 15 | 151 | 1511 | 4 |
| C 1512 | Manufacture of luggage, handbags and the like, saddlery and harness | C | 15 | 151 | 1512 | 4 |
| C 152 | Manufacture of footwear | C | 15 | 152 | | 3 |
| C 1520 | Manufacture of footwear | C | 15 | 152 | 1520 | 4 |
| C 16 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials | C | 16 | | | 2 |
| C 161 | Sawmilling and planing of wood | C | 16 | 161 | | 3 |
| C 1610 | Sawmilling and planing of wood | C | 16 | 161 | 1610 | 4 |
| C 162 | Manufacture of products of wood, cork, straw and plaiting materials | C | 16 | 162 | | 3 |
| C 1621 | Manufacture of veneer sheets and wood-based panels | C | 16 | 162 | 1621 | 4 |
| C 1622 | Manufacture of builders' carpentry and joinery | C | 16 | 162 | 1622 | 4 |
| C 1623 | Manufacture of wooden containers | C | 16 | 162 | 1623 | 4 |
| C 1629 | Manufacture of other products of wood; manufacture of articles of cork, straw and plaiting materials | C | 16 | 162 | 1629 | 4 |
| C 17 | Manufacture of paper and paper products | C | 17 | | | 2 |
| C 170 | Manufacture of paper and paper products | C | 17 | 170 | | 3 |
| C 1701 | Manufacture of pulp, paper and paperboard | C | 17 | 170 | 1701 | 4 |
| C 1702 | Manufacture of corrugated paper and paperboard and of containers of paper and paperboard | C | 17 | 170 | 1702 | 4 |
| C 1709 | Manufacture of other articles of paper and paperboard | C | 17 | 170 | 1709 | 4 |
| C 18 | Printing and reproduction of recorded media | C | 18 | | | 2 |
| C 181 | Printing and service activities related to printing | C | 18 | 181 | | 3 |
| C 1811 | Printing | C | 18 | 181 | 1811 | 4 |
| C 1812 | Service activities related to printing | C | 18 | 181 | 1812 | 4 |
| C 182 | Reproduction of recorded media | C | 18 | 182 | | 3 |
| C 1820 | Reproduction of recorded media | C | 18 | 182 | 1820 | 4 |
| C 19 | Manufacture of coke and refined petroleum products | C | 19 | | | 2 |
| C 191 | Manufacture of coke oven products | C | 19 | 191 | | 3 |
| C 1910 | Manufacture of coke oven products | C | 19 | 191 | 1910 | 4 |
| C 192 | Manufacture of refined petroleum products | C | 19 | 192 | | 3 |
| C 1920 | Manufacture of refined petroleum products | C | 19 | 192 | 1920 | 4 |
| C 20 | Manufacture of chemicals and chemical products | C | 20 | | | 2 |
| C 201 | Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics and synthetic rubber in primary forms | C | 20 | 201 | | 3 |
| C 2011 | Manufacture of basic chemicals | C | 20 | 201 | 2011 | 4 |
| C 2012 | Manufacture of fertilizers and nitrogen compounds | C | 20 | 201 | 2012 | 4 |
| C 2013 | Manufacture of plastics and synthetic rubber in primary forms | C | 20 | 201 | 2013 | 4 |
| C 202 | Manufacture of other chemical products | C | 20 | 202 | | 3 |
| C 2021 | Manufacture of pesticides and other agrochemical products | C | 20 | 202 | 2021 | 4 |
| C 2022 | Manufacture of paints, varnishes and similar coatings, printing ink and mastics | C | 20 | 202 | 2022 | 4 |
| C 2023 | Manufacture of soap and detergents, cleaning and polishing preparations, perfumes and toilet preparations | C | 20 | 202 | 2023 | 4 |
| C 2029 | Manufacture of other chemical products n.e.c. | C | 20 | 202 | 2029 | 4 |
| C 203 | Manufacture of man-made fibres | C | 20 | 203 | | 3 |
| C 2030 | Manufacture of man-made fibres | C | 20 | 203 | 2030 | 4 |
| C 21 | Manufacture of basic pharmaceutical products and pharmaceutical preparations | C | 21 | | | 2 |
| C 210 | Manufacture of pharmaceuticals, medicinal chemical and botanical products | C | 21 | 210 | | 3 |
| C 2100 | Manufacture of pharmaceuticals, medicinal chemical and botanical products | C | 21 | 210 | 2100 | 4 |
| C 22 | Manufacture of rubber and plastics products | C | 22 | | | 2 |
| C 221 | Manufacture of rubber products | C | 22 | 221 | | 3 |
| C 2211 | Manufacture of rubber tyres and tubes; retreading and rebuilding of rubber tyres | C | 22 | 221 | 2211 | 4 |
| C 2219 | Manufacture of other rubber products | C | 22 | 221 | 2219 | 4 |
| C 222 | Manufacture of plastics products | C | 22 | 222 | | 3 |
| C 2220 | Manufacture of plastics products | C | 22 | 222 | 2220 | 4 |
| C 23 | Manufacture of other non-metallic mineral products | C | 23 | | | 2 |
| C 231 | Manufacture of glass and glass products | C | 23 | 231 | | 3 |
| C 2310 | Manufacture of glass and glass products | C | 23 | 231 | 2310 | 4 |
| C 239 | Manufacture of non-metallic mineral products n.e.c. | C | 23 | 239 | | 3 |
| C 2391 | Manufacture of refractory products | C | 23 | 239 | 2391 | 4 |
| C 2392 | Manufacture of clay building materials | C | 23 | 239 | 2392 | 4 |
| C 2393 | Manufacture of other porcelain and ceramic products | C | 23 | 239 | 2393 | 4 |
| C 2394 | Manufacture of cement, lime and plaster | C | 23 | 239 | 2394 | 4 |
| C 2395 | Manufacture of articles of concrete, cement and plaster | C | 23 | 239 | 2395 | 4 |
| C 2396 | Cutting, shaping and finishing of stone | C | 23 | 239 | 2396 | 4 |
| C 2399 | Manufacture of other non-metallic mineral products n.e.c. | C | 23 | 239 | 2399 | 4 |
| C 24 | Manufacture of basic metals | C | 24 | | | 2 |
| C 241 | Manufacture of basic iron and steel | C | 24 | 241 | | 3 |
| C 2410 | Manufacture of basic iron and steel | C | 24 | 241 | 2410 | 4 |
| C 242 | Manufacture of basic precious and other non-ferrous metals | C | 24 | 242 | | 3 |
| C 2420 | Manufacture of basic precious and other non-ferrous metals | C | 24 | 242 | 2420 | 4 |
| C 243 | Casting of metals | C | 24 | 243 | | 3 |
| C 2431 | Casting of iron and steel | C | 24 | 243 | 2431 | 4 |
| C 2432 | Casting of non-ferrous metals | C | 24 | 243 | 2432 | 4 |
| C 25 | Manufacture of fabricated metal products, except machinery and equipment | C | 25 | | | 2 |
| C 251 | Manufacture of structural metal products, tanks, reservoirs and steam generators | C | 25 | 251 | | 3 |
| C 2511 | Manufacture of structural metal products | C | 25 | 251 | 2511 | 4 |
| C 2512 | Manufacture of tanks, reservoirs and containers of metal | C | 25 | 251 | 2512 | 4 |
| C 2513 | Manufacture of steam generators, except central heating hot water boilers | C | 25 | 251 | 2513 | 4 |
| C 252 | Manufacture of weapons and ammunition | C | 25 | 252 | | 3 |
| C 2520 | Manufacture of weapons and ammunition | C | 25 | 252 | 2520 | 4 |
| C 259 | Manufacture of other fabricated metal products; metalworking service activities | C | 25 | 259 | | 3 |
| C 2591 | Forging, pressing, stamping and roll-forming of metal; powder metallurgy | C | 25 | 259 | 2591 | 4 |
| C 2592 | Treatment and coating of metals; machining | C | 25 | 259 | 2592 | 4 |
| C 2593 | Manufacture of cutlery, hand tools and general hardware | C | 25 | 259 | 2593 | 4 |
| C 2599 | Manufacture of other fabricated metal products n.e.c. | C | 25 | 259 | 2599 | 4 |
| C 26 | Manufacture of computer, electronic and optical products | C | 26 | | | 2 |
| C 261 | Manufacture of electronic components and boards | C | 26 | 261 | | 3 |
| C 2610 | Manufacture of electronic components and boards | C | 26 | 261 | 2610 | 4 |
| C 262 | Manufacture of computers and peripheral equipment | C | 26 | 262 | | 3 |
| C 2620 | Manufacture of computers and peripheral equipment | C | 26 | 262 | 2620 | 4 |
| C 263 | Manufacture of communication equipment | C | 26 | 263 | | 3 |
| C 2630 | Manufacture of communication equipment | C | 26 | 263 | 2630 | 4 |
| C 264 | Manufacture of consumer electronics | C | 26 | 264 | | 3 |
| C 2640 | Manufacture of consumer electronics | C | 26 | 264 | 2640 | 4 |
| C 265 | Manufacture of measuring, testing, navigating and control equipment; watches and clocks | C | 26 | 265 | | 3 |
| C 2651 | Manufacture of measuring, testing, navigating and control equipment | C | 26 | 265 | 2651 | 4 |
| C 2652 | Manufacture of watches and clocks | C | 26 | 265 | 2652 | 4 |
| C 266 | Manufacture of irradiation, electromedical and electrotherapeutic equipment | C | 26 | 266 | | 3 |
| C 2660 | Manufacture of irradiation, electromedical and electrotherapeutic equipment | C | 26 | 266 | 2660 | 4 |
| C 267 | Manufacture of optical instruments and photographic equipment | C | 26 | 267 | | 3 |
| C 2670 | Manufacture of optical instruments and photographic equipment | C | 26 | 267 | 2670 | 4 |
| C 268 | Manufacture of magnetic and optical media | C | 26 | 268 | | 3 |
| C 2680 | Manufacture of magnetic and optical media | C | 26 | 268 | 2680 | 4 |
| C 27 | Manufacture of electrical equipment | C | 27 | | | 2 |
| C 271 | Manufacture of electric motors, generators, transformers and electricity distribution and control apparatus | C | 27 | 271 | | 3 |
| C 2710 | Manufacture of electric motors, generators, transformers and electricity distribution and control apparatus | C | 27 | 271 | 2710 | 4 |
| C 272 | Manufacture of batteries and accumulators | C | 27 | 272 | | 3 |
| C 2720 | Manufacture of batteries and accumulators | C | 27 | 272 | 2720 | 4 |
| C 273 | Manufacture of wiring and wiring devices | C | 27 | 273 | | 3 |
| C 2731 | Manufacture of fibre optic cables | C | 27 | 273 | 2731 | 4 |
| C 2732 | Manufacture of other electronic and electric wires and cables | C | 27 | 273 | 2732 | 4 |
| C 2733 | Manufacture of wiring devices | C | 27 | 273 | 2733 | 4 |
| C 274 | Manufacture of electric lighting equipment | C | 27 | 274 | | 3 |
| C 2740 | Manufacture of electric lighting equipment | C | 27 | 274 | 2740 | 4 |
| C 275 | Manufacture of domestic appliances | C | 27 | 275 | | 3 |
| C 2750 | Manufacture of domestic appliances | C | 27 | 275 | 2750 | 4 |
| C 279 | Manufacture of other electrical equipment | C | 27 | 279 | | 3 |
| C 2790 | Manufacture of other electrical equipment | C | 27 | 279 | 2790 | 4 |
| C 28 | Manufacture of machinery and equipment n.e.c. | C | 28 | | | 2 |
| C 281 | Manufacture of general-purpose machinery | C | 28 | 281 | | 3 |
| C 2811 | Manufacture of engines and turbines, except aircraft, vehicle and cycle engines | C | 28 | 281 | 2811 | 4 |
| C 2812 | Manufacture of fluid power equipment | C | 28 | 281 | 2812 | 4 |
| C 2813 | Manufacture of other pumps, compressors, taps and valves | C | 28 | 281 | 2813 | 4 |
| C 2814 | Manufacture of bearings, gears, gearing and driving elements | C | 28 | 281 | 2814 | 4 |
| C 2815 | Manufacture of ovens, furnaces and furnace burners | C | 28 | 281 | 2815 | 4 |
| C 2816 | Manufacture of lifting and handling equipment | C | 28 | 281 | 2816 | 4 |
| C 2817 | Manufacture of office machinery and equipment (except computers and peripheral equipment) | C | 28 | 281 | 2817 | 4 |
| C 2818 | Manufacture of power-driven hand tools | C | 28 | 281 | 2818 | 4 |
| C 2819 | Manufacture of other general-purpose machinery | C | 28 | 281 | 2819 | 4 |
| C 282 | Manufacture of special-purpose machinery | C | 28 | 282 | | 3 |
| C 2821 | Manufacture of agricultural and forestry machinery | C | 28 | 282 | 2821 | 4 |
| C 2822 | Manufacture of metal-forming machinery and machine tools | C | 28 | 282 | 2822 | 4 |
| C 2823 | Manufacture of machinery for metallurgy | C | 28 | 282 | 2823 | 4 |
| C 2824 | Manufacture of machinery for mining, quarrying and construction | C | 28 | 282 | 2824 | 4 |
| C 2825 | Manufacture of machinery for food, beverage and tobacco processing | C | 28 | 282 | 2825 | 4 |
| C 2826 | Manufacture of machinery for textile, apparel and leather production | C | 28 | 282 | 2826 | 4 |
| C 2829 | Manufacture of other special-purpose machinery | C | 28 | 282 | 2829 | 4 |
| C 29 | Manufacture of motor vehicles, trailers and semi-trailers | C | 29 | | | 2 |
| C 291 | Manufacture of motor vehicles | C | 29 | 291 | | 3 |
| C 2910 | Manufacture of motor vehicles | C | 29 | 291 | 2910 | 4 |
| C 292 | Manufacture of bodies (coachwork) for motor vehicles; manufacture of trailers and semi-trailers | C | 29 | 292 | | 3 |
| C 2920 | Manufacture of bodies (coachwork) for motor vehicles; manufacture of trailers and semi-trailers | C | 29 | 292 | 2920 | 4 |
| C 293 | Manufacture of parts and accessories for motor vehicles | C | 29 | 293 | | 3 |
| C 2930 | Manufacture of parts and accessories for motor vehicles | C | 29 | 293 | 2930 | 4 |
| C 30 | Manufacture of other transport equipment | C | 30 | | | 2 |
| C 301 | Building of ships and boats | C | 30 | 301 | | 3 |
| C 3011 | Building of ships and floating structures | C | 30 | 301 | 3011 | 4 |
| C 3012 | Building of pleasure and sporting boats | C | 30 | 301 | 3012 | 4 |
| C 302 | Manufacture of railway locomotives and rolling stock | C | 30 | 302 | | 3 |
| C 3020 | Manufacture of railway locomotives and rolling stock | C | 30 | 302 | 3020 | 4 |
| C 303 | Manufacture of air and spacecraft and related machinery | C | 30 | 303 | | 3 |
| C 3030 | Manufacture of air and spacecraft and related machinery | C | 30 | 303 | 3030 | 4 |
| C 304 | Manufacture of military fighting vehicles | C | 30 | 304 | | 3 |
| C 3040 | Manufacture of military fighting vehicles | C | 30 | 304 | 3040 | 4 |
| C 309 | Manufacture of transport equipment n.e.c. | C | 30 | 309 | | 3 |
| C 3091 | Manufacture of motorcycles | C | 30 | 309 | 3091 | 4 |
| C 3092 | Manufacture of bicycles and invalid carriages | C | 30 | 309 | 3092 | 4 |
| C 3099 | Manufacture of other transport equipment n.e.c. | C | 30 | 309 | 3099 | 4 |
| C 31 | Manufacture of furniture | C | 31 | | | 2 |
| C 310 | Manufacture of furniture | C | 31 | 310 | | 3 |
| C 3100 | Manufacture of furniture | C | 31 | 310 | 3100 | 4 |
| C 32 | Other manufacturing | C | 32 | | | 2 |
| C 321 | Manufacture of jewellery, bijouterie and related articles | C | 32 | 321 | | 3 |
| C 3211 | Manufacture of jewellery and related articles | C | 32 | 321 | 3211 | 4 |
| C 3212 | Manufacture of imitation jewellery and related articles | C | 32 | 321 | 3212 | 4 |
| C 322 | Manufacture of musical instruments | C | 32 | 322 | | 3 |
| C 3220 | Manufacture of musical instruments | C | 32 | 322 | 3220 | 4 |
| C 323 | Manufacture of sports goods | C | 32 | 323 | | 3 |
| C 3230 | Manufacture of sports goods | C | 32 | 323 | 3230 | 4 |
| C 324 | Manufacture of games and toys | C | 32 | 324 | | 3 |
| C 3240 | Manufacture of games and toys | C | 32 | 324 | 3240 | 4 |
| C 325 | Manufacture of medical and dental instruments and supplies | C | 32 | 325 | | 3 |
| C 3250 | Manufacture of medical and dental instruments and supplies | C | 32 | 325 | 3250 | 4 |
| C 329 | Other manufacturing n.e.c. | C | 32 | 329 | | 3 |
| C 3290 | Other manufacturing n.e.c. | C | 32 | 329 | 3290 | 4 |
| C 33 | Repair and installation of machinery and equipment | C | 33 | | | 2 |
| C 331 | Repair of fabricated metal products, machinery and equipment | C | 33 | 331 | | 3 |
| C 3311 | Repair of fabricated metal products | C | 33 | 331 | 3311 | 4 |
| C 3312 | Repair of machinery | C | 33 | 331 | 3312 | 4 |
| C 3313 | Repair of electronic and optical equipment | C | 33 | 331 | 3313 | 4 |
| C 3314 | Repair of electrical equipment | C | 33 | 331 | 3314 | 4 |
| C 3315 | Repair of transport equipment, except motor vehicles | C | 33 | 331 | 3315 | 4 |
| C 3319 | Repair of other equipment | C | 33 | 331 | 3319 | 4 |
| C 332 | Installation of industrial machinery and equipment | C | 33 | 332 | | 3 |
| C 3320 | Installation of industrial machinery and equipment | C | 33 | 332 | 3320 | 4 |
| D | Electricity, gas, steam and air conditioning supply | D | | | | 1 |
| D 35 | Electricity, gas, steam and air conditioning supply | D | 35 | | | 2 |
| D 351 | Electric power generation, transmission and distribution | D | 35 | 351 | | 3 |
| D 3510 | Electric power generation, transmission and distribution | D | 35 | 351 | 3510 | 4 |
| D 352 | Manufacture of gas; distribution of gaseous fuels through mains | D | 35 | 352 | | 3 |
| D 3520 | Manufacture of gas; distribution of gaseous fuels through mains | D | 35 | 352 | 3520 | 4 |
| D 353 | Steam and air conditioning supply | D | 35 | 353 | | 3 |
| D 3530 | Steam and air conditioning supply | D | 35 | 353 | 3530 | 4 |
| E | Water supply; sewerage, waste management and remediation activities | E | | | | 1 |
| E 36 | Water collection, treatment and supply | E | 36 | | | 2 |
| E 360 | Water collection, treatment and supply | E | 36 | 360 | | 3 |
| E 3600 | Water collection, treatment and supply | E | 36 | 360 | 3600 | 4 |
| E 37 | Sewerage | E | 37 | | | 2 |
| E 370 | Sewerage | E | 37 | 370 | | 3 |
| E 3700 | Sewerage | E | 37 | 370 | 3700 | 4 |
| E 38 | Waste collection, treatment and disposal activities; materials recovery | E | 38 | | | 2 |
| E 381 | Waste collection | E | 38 | 381 | | 3 |
| E 3811 | Collection of non-hazardous waste | E | 38 | 381 | 3811 | 4 |
| E 3812 | Collection of hazardous waste | E | 38 | 381 | 3812 | 4 |
| E 382 | Waste treatment and disposal | E | 38 | 382 | | 3 |
| E 3821 | Treatment and disposal of non-hazardous waste | E | 38 | 382 | 3821 | 4 |
| E 3822 | Treatment and disposal of hazardous waste | E | 38 | 382 | 3822 | 4 |
| E 383 | Materials recovery | E | 38 | 383 | | 3 |
| E 3830 | Materials recovery | E | 38 | 383 | 3830 | 4 |
| E 39 | Remediation activities and other waste management services | E | 39 | | | 2 |
| E 390 | Remediation activities and other waste management services | E | 39 | 390 | | 3 |
| E 3900 | Remediation activities and other waste management services | E | 39 | 390 | 3900 | 4 |
| F | Construction | F | | | | 1 |
| F 41 | Construction of buildings | F | 41 | | | 2 |
| F 410 | Construction of buildings | F | 41 | 410 | | 3 |
| F 4100 | Construction of buildings | F | 41 | 410 | 4100 | 4 |
| F 42 | Civil engineering | F | 42 | | | 2 |
| F 421 | Construction of roads and railways | F | 42 | 421 | | 3 |
| F 4210 | Construction of roads and railways | F | 42 | 421 | 4210 | 4 |
| F 422 | Construction of utility projects | F | 42 | 422 | | 3 |
| F 4220 | Construction of utility projects | F | 42 | 422 | 4220 | 4 |
| F 429 | Construction of other civil engineering projects | F | 42 | 429 | | 3 |
| F 4290 | Construction of other civil engineering projects | F | 42 | 429 | 4290 | 4 |
| F 43 | Specialized construction activities | F | 43 | | | 2 |
| F 431 | Demolition and site preparation | F | 43 | 431 | | 3 |
| F 4311 | Demolition | F | 43 | 431 | 4311 | 4 |
| F 4312 | Site preparation | F | 43 | 431 | 4312 | 4 |
| F 432 | Electrical, plumbing and other construction installation activities | F | 43 | 432 | | 3 |
| F 4321 | Electrical installation | F | 43 | 432 | 4321 | 4 |
| F 4322 | Plumbing, heat and air-conditioning installation | F | 43 | 432 | 4322 | 4 |
| F 4329 | Other construction installation | F | 43 | 432 | 4329 | 4 |
| F 433 | Building completion and finishing | F | 43 | 433 | | 3 |
| F 4330 | Building completion and finishing | F | 43 | 433 | 4330 | 4 |
| F 439 | Other specialized construction activities | F | 43 | 439 | | 3 |
| F 4390 | Other specialized construction activities | F | 43 | 439 | 4390 | 4 |
| G | Wholesale and retail trade; repair of motor vehicles and motorcycles | G | | | | 1 |
| G 45 | Wholesale and retail trade and repair of motor vehicles and motorcycles | G | 45 | | | 2 |
| G 451 | Sale of motor vehicles | G | 45 | 451 | | 3 |
| G 4510 | Sale of motor vehicles | G | 45 | 451 | 4510 | 4 |
| G 452 | Maintenance and repair of motor vehicles | G | 45 | 452 | | 3 |
| G 4520 | Maintenance and repair of motor vehicles | G | 45 | 452 | 4520 | 4 |
| G 453 | Sale of motor vehicle parts and accessories | G | 45 | 453 | | 3 |
| G 4530 | Sale of motor vehicle parts and accessories | G | 45 | 453 | 4530 | 4 |
| G 454 | Sale, maintenance and repair of motorcycles and related parts and accessories | G | 45 | 454 | | 3 |
| G 4540 | Sale, maintenance and repair of motorcycles and related parts and accessories | G | 45 | 454 | 4540 | 4 |
| G 46 | Wholesale trade, except of motor vehicles and motorcycles | G | 46 | | | 2 |
| G 461 | Wholesale on a fee or contract basis | G | 46 | 461 | | 3 |
| G 4610 | Wholesale on a fee or contract basis | G | 46 | 461 | 4610 | 4 |
| G 462 | Wholesale of agricultural raw materials and live animals | G | 46 | 462 | | 3 |
| G 4620 | Wholesale of agricultural raw materials and live animals | G | 46 | 462 | 4620 | 4 |
| G 463 | Wholesale of food, beverages and tobacco | G | 46 | 463 | | 3 |
| G 4630 | Wholesale of food, beverages and tobacco | G | 46 | 463 | 4630 | 4 |
| G 464 | Wholesale of household goods | G | 46 | 464 | | 3 |
| G 4641 | Wholesale of textiles, clothing and footwear | G | 46 | 464 | 4641 | 4 |
| G 4649 | Wholesale of other household goods | G | 46 | 464 | 4649 | 4 |
| G 465 | Wholesale of machinery, equipment and supplies | G | 46 | 465 | | 3 |
| G 4651 | Wholesale of computers, computer peripheral equipment and software | G | 46 | 465 | 4651 | 4 |
| G 4652 | Wholesale of electronic and telecommunications equipment and parts | G | 46 | 465 | 4652 | 4 |
| G 4653 | Wholesale of agricultural machinery, equipment and supplies | G | 46 | 465 | 4653 | 4 |
| G 4659 | Wholesale of other machinery and equipment | G | 46 | 465 | 4659 | 4 |
| G 466 | Other specialized wholesale | G | 46 | 466 | | 3 |
| G 4661 | Wholesale of solid, liquid and gaseous fuels and related products | G | 46 | 466 | 4661 | 4 |
| G 4662 | Wholesale of metals and metal ores | G | 46 | 466 | 4662 | 4 |
| G 4663 | Wholesale of construction materials, hardware, plumbing and heating equipment and supplies | G | 46 | 466 | 4663 | 4 |
| G 4669 | Wholesale of waste and scrap and other products n.e.c. | G | 46 | 466 | 4669 | 4 |
| G 469 | Non-specialized wholesale trade | G | 46 | 469 | | 3 |
| G 4690 | Non-specialized wholesale trade | G | 46 | 469 | 4690 | 4 |
| G 47 | Retail trade, except of motor vehicles and motorcycles | G | 47 | | | 2 |
| G 471 | Retail sale in non-specialized stores | G | 47 | 471 | | 3 |
| G 4711 | Retail sale in non-specialized stores with food, beverages or tobacco predominating | G | 47 | 471 | 4711 | 4 |
| G 4719 | Other retail sale in non-specialized stores | G | 47 | 471 | 4719 | 4 |
| G 472 | Retail sale of food, beverages and tobacco in specialized stores | G | 47 | 472 | | 3 |
| G 4721 | Retail sale of food in specialized stores | G | 47 | 472 | 4721 | 4 |
| G 4722 | Retail sale of beverages in specialized stores | G | 47 | 472 | 4722 | 4 |
| G 4723 | Retail sale of tobacco products in specialized stores | G | 47 | 472 | 4723 | 4 |
| G 473 | Retail sale of automotive fuel in specialized stores | G | 47 | 473 | | 3 |
| G 4730 | Retail sale of automotive fuel in specialized stores | G | 47 | 473 | 4730 | 4 |
| G 474 | Retail sale of information and communications equipment in specialized stores | G | 47 | 474 | | 3 |
| G 4741 | Retail sale of computers, peripheral units, software and telecommunications equipment in specialized stores | G | 47 | 474 | 4741 | 4 |
| G 4742 | Retail sale of audio and video equipment in specialized stores | G | 47 | 474 | 4742 | 4 |
| G 475 | Retail sale of other household equipment in specialized stores | G | 47 | 475 | | 3 |
| G 4751 | Retail sale of textiles in specialized stores | G | 47 | 475 | 4751 | 4 |
| G 4752 | Retail sale of hardware, paints and glass in specialized stores | G | 47 | 475 | 4752 | 4 |
| G 4753 | Retail sale of carpets, rugs, wall and floor coverings in specialized stores | G | 47 | 475 | 4753 | 4 |
| G 4759 | Retail sale of electrical household appliances, furniture, lighting equipment and other household articles in specialized stores | G | 47 | 475 | 4759 | 4 |
| G 476 | Retail sale of cultural and recreation goods in specialized stores | G | 47 | 476 | | 3 |
| G 4761 | Retail sale of books, newspapers and stationary in specialized stores | G | 47 | 476 | 4761 | 4 |
| G 4762 | Retail sale of music and video recordings in specialized stores | G | 47 | 476 | 4762 | 4 |
| G 4763 | Retail sale of sporting equipment in specialized stores | G | 47 | 476 | 4763 | 4 |
| G 4764 | Retail sale of games and toys in specialized stores | G | 47 | 476 | 4764 | 4 |
| G 477 | Retail sale of other goods in specialized stores | G | 47 | 477 | | 3 |
| G 4771 | Retail sale of clothing, footwear and leather articles in specialized stores | G | 47 | 477 | 4771 | 4 |
| G 4772 | Retail sale of pharmaceutical and medical goods, cosmetic and toilet articles in specialized stores | G | 47 | 477 | 4772 | 4 |
| G 4773 | Other retail sale of new goods in specialized stores | G | 47 | 477 | 4773 | 4 |
| G 4774 | Retail sale of second-hand goods | G | 47 | 477 | 4774 | 4 |
| G 478 | Retail sale via stalls and markets | G | 47 | 478 | | 3 |
| G 4781 | Retail sale via stalls and markets of food, beverages and tobacco products | G | 47 | 478 | 4781 | 4 |
| G 4782 | Retail sale via stalls and markets of textiles, clothing and footwear | G | 47 | 478 | 4782 | 4 |
| G 4789 | Retail sale via stalls and markets of other goods | G | 47 | 478 | 4789 | 4 |
| G 479 | Retail trade not in stores, stalls or markets | G | 47 | 479 | | 3 |
| G 4791 | Retail sale via mail order houses or via Internet | G | 47 | 479 | 4791 | 4 |
| G 4799 | Other retail sale not in stores, stalls or markets | G | 47 | 479 | 4799 | 4 |
| H | Transportation and storage | H | | | | 1 |
| H 49 | Land transport and transport via pipelines | H | 49 | | | 2 |
| H 491 | Transport via railways | H | 49 | 491 | | 3 |
| H 4911 | Passenger rail transport, interurban | H | 49 | 491 | 4911 | 4 |
| H 4912 | Freight rail transport | H | 49 | 491 | 4912 | 4 |
| H 492 | Other land transport | H | 49 | 492 | | 3 |
| H 4921 | Urban and suburban passenger land transport | H | 49 | 492 | 4921 | 4 |
| H 4922 | Other passenger land transport | H | 49 | 492 | 4922 | 4 |
| H 4923 | Freight transport by road | H | 49 | 492 | 4923 | 4 |
| H 493 | Transport via pipeline | H | 49 | 493 | | 3 |
| H 4930 | Transport via pipeline | H | 49 | 493 | 4930 | 4 |
| H 50 | Water transport | H | 50 | | | 2 |
| H 501 | Sea and coastal water transport | H | 50 | 501 | | 3 |
| H 5011 | Sea and coastal passenger water transport | H | 50 | 501 | 5011 | 4 |
| H 5012 | Sea and coastal freight water transport | H | 50 | 501 | 5012 | 4 |
| H 502 | Inland water transport | H | 50 | 502 | | 3 |
| H 5021 | Inland passenger water transport | H | 50 | 502 | 5021 | 4 |
| H 5022 | Inland freight water transport | H | 50 | 502 | 5022 | 4 |
| H 51 | Air transport | H | 51 | | | 2 |
| H 511 | Passenger air transport | H | 51 | 511 | | 3 |
| H 5110 | Passenger air transport | H | 51 | 511 | 5110 | 4 |
| H 512 | Freight air transport | H | 51 | 512 | | 3 |
| H 5120 | Freight air transport | H | 51 | 512 | 5120 | 4 |
| H 52 | Warehousing and support activities for transportation | H | 52 | | | 2 |
| H 521 | Warehousing and storage | H | 52 | 521 | | 3 |
| H 5210 | Warehousing and storage | H | 52 | 521 | 5210 | 4 |
| H 522 | Support activities for transportation | H | 52 | 522 | | 3 |
| H 5221 | Service activities incidental to land transportation | H | 52 | 522 | 5221 | 4 |
| H 5222 | Service activities incidental to water transportation | H | 52 | 522 | 5222 | 4 |
| H 5223 | Service activities incidental to air transportation | H | 52 | 522 | 5223 | 4 |
| H 5224 | Cargo handling | H | 52 | 522 | 5224 | 4 |
| H 5229 | Other transportation support activities | H | 52 | 522 | 5229 | 4 |
| H 53 | Postal and courier activities | H | 53 | | | 2 |
| H 531 | Postal activities | H | 53 | 531 | | 3 |
| H 5310 | Postal activities | H | 53 | 531 | 5310 | 4 |
| H 532 | Courier activities | H | 53 | 532 | | 3 |
| H 5320 | Courier activities | H | 53 | 532 | 5320 | 4 |
| I | Accommodation and food service activities | I | | | | 1 |
| I 55 | Accommodation | I | 55 | | | 2 |
| I 551 | Short term accommodation activities | I | 55 | 551 | | 3 |
| I 5510 | Short term accommodation activities | I | 55 | 551 | 5510 | 4 |
| I 552 | Camping grounds, recreational vehicle parks and trailer parks | I | 55 | 552 | | 3 |
| I 5520 | Camping grounds, recreational vehicle parks and trailer parks | I | 55 | 552 | 5520 | 4 |
| I 559 | Other accommodation | I | 55 | 559 | | 3 |
| I 5590 | Other accommodation | I | 55 | 559 | 5590 | 4 |
| I 56 | Food and beverage service activities | I | 56 | | | 2 |
| I 561 | Restaurants and mobile food service activities | I | 56 | 561 | | 3 |
| I 5610 | Restaurants and mobile food service activities | I | 56 | 561 | 5610 | 4 |
| I 562 | Event catering and other food service activities | I | 56 | 562 | | 3 |
| I 5621 | Event catering | I | 56 | 562 | 5621 | 4 |
| I 5629 | Other food service activities | I | 56 | 562 | 5629 | 4 |
| I 563 | Beverage serving activities | I | 56 | 563 | | 3 |
| I 5630 | Beverage serving activities | I | 56 | 563 | 5630 | 4 |
| J | Information and communication | J | | | | 1 |
| J 58 | Publishing activities | J | 58 | | | 2 |
| J 581 | Publishing of books, periodicals and other publishing activities | J | 58 | 581 | | 3 |
| J 5811 | Book publishing | J | 58 | 581 | 5811 | 4 |
| J 5812 | Publishing of directories and mailing lists | J | 58 | 581 | 5812 | 4 |
| J 5813 | Publishing of newspapers, journals and periodicals | J | 58 | 581 | 5813 | 4 |
| J 5819 | Other publishing activities | J | 58 | 581 | 5819 | 4 |
| J 582 | Software publishing | J | 58 | 582 | | 3 |
| J 5820 | Software publishing | J | 58 | 582 | 5820 | 4 |
| J 59 | Motion picture, video and television programme production, sound recording and music publishing activities | J | 59 | | | 2 |
| J 591 | Motion picture, video and television programme activities | J | 59 | 591 | | 3 |
| J 5911 | Motion picture, video and television programme production activities | J | 59 | 591 | 5911 | 4 |
| J 5912 | Motion picture, video and television programme post-production activities | J | 59 | 591 | 5912 | 4 |
| J 5913 | Motion picture, video and television programme distribution activities | J | 59 | 591 | 5913 | 4 |
| J 5914 | Motion picture projection activities | J | 59 | 591 | 5914 | 4 |
| J 592 | Sound recording and music publishing activities | J | 59 | 592 | | 3 |
| J 5920 | Sound recording and music publishing activities | J | 59 | 592 | 5920 | 4 |
| J 60 | Programming and broadcasting activities | J | 60 | | | 2 |
| J 601 | Radio broadcasting | J | 60 | 601 | | 3 |
| J 6010 | Radio broadcasting | J | 60 | 601 | 6010 | 4 |
| J 602 | Television programming and broadcasting activities | J | 60 | 602 | | 3 |
| J 6020 | Television programming and broadcasting activities | J | 60 | 602 | 6020 | 4 |
| J 61 | Telecommunications | J | 61 | | | 2 |
| J 611 | Wired telecommunications activities | J | 61 | 611 | | 3 |
| J 6110 | Wired telecommunications activities | J | 61 | 611 | 6110 | 4 |
| J 612 | Wireless telecommunications activities | J | 61 | 612 | | 3 |
| J 6120 | Wireless telecommunications activities | J | 61 | 612 | 6120 | 4 |
| J 613 | Satellite telecommunications activities | J | 61 | 613 | | 3 |
| J 6130 | Satellite telecommunications activities | J | 61 | 613 | 6130 | 4 |
| J 619 | Other telecommunications activities | J | 61 | 619 | | 3 |
| J 6190 | Other telecommunications activities | J | 61 | 619 | 6190 | 4 |
| J 62 | Computer programming, consultancy and related activities | J | 62 | | | 2 |
| J 620 | Computer programming, consultancy and related activities | J | 62 | 620 | | 3 |
| J 6201 | Computer programming activities | J | 62 | 620 | 6201 | 4 |
| J 6202 | Computer consultancy and computer facilities management activities | J | 62 | 620 | 6202 | 4 |
| J 6209 | Other information technology and computer service activities | J | 62 | 620 | 6209 | 4 |
| J 63 | Information service activities | J | 63 | | | 2 |
| J 631 | Data processing, hosting and related activities; web portals | J | 63 | 631 | | 3 |
| J 6311 | Data processing, hosting and related activities | J | 63 | 631 | 6311 | 4 |
| J 6312 | Web portals | J | 63 | 631 | 6312 | 4 |
| J 639 | Other information service activities | J | 63 | 639 | | 3 |
| J 6391 | News agency activities | J | 63 | 639 | 6391 | 4 |
| J 6399 | Other information service activities n.e.c. | J | 63 | 639 | 6399 | 4 |
| K | Financial and insurance activities | K | | | | 1 |
| K 64 | Financial service activities, except insurance and pension funding | K | 64 | | | 2 |
| K 641 | Monetary intermediation | K | 64 | 641 | | 3 |
| K 6411 | Central banking | K | 64 | 641 | 6411 | 4 |
| K 6419 | Other monetary intermediation | K | 64 | 641 | 6419 | 4 |
| K 642 | Activities of holding companies | K | 64 | 642 | | 3 |
| K 6420 | Activities of holding companies | K | 64 | 642 | 6420 | 4 |
| K 643 | Trusts, funds and similar financial entities | K | 64 | 643 | | 3 |
| K 6430 | Trusts, funds and similar financial entities | K | 64 | 643 | 6430 | 4 |
| K 649 | Other financial service activities, except insurance and pension funding activities | K | 64 | 649 | | 3 |
| K 6491 | Financial leasing | K | 64 | 649 | 6491 | 4 |
| K 6492 | Other credit granting | K | 64 | 649 | 6492 | 4 |
| K 6499 | Other financial service activities, except insurance and pension funding activities, n.e.c. | K | 64 | 649 | 6499 | 4 |
| K 65 | Insurance, reinsurance and pension funding, except compulsory social security | K | 65 | | | 2 |
| K 651 | Insurance | K | 65 | 651 | | 3 |
| K 6511 | Life insurance | K | 65 | 651 | 6511 | 4 |
| K 6512 | Non-life insurance | K | 65 | 651 | 6512 | 4 |
| K 652 | Reinsurance | K | 65 | 652 | | 3 |
| K 6520 | Reinsurance | K | 65 | 652 | 6520 | 4 |
| K 653 | Pension funding | K | 65 | 653 | | 3 |
| K 6530 | Pension funding | K | 65 | 653 | 6530 | 4 |
| K 66 | Activities auxiliary to financial service and insurance activities | K | 66 | | | 2 |
| K 661 | Activities auxiliary to financial service activities, except insurance and pension funding | K | 66 | 661 | | 3 |
| K 6611 | Administration of financial markets | K | 66 | 661 | 6611 | 4 |
| K 6612 | Security and commodity contracts brokerage | K | 66 | 661 | 6612 | 4 |
| K 6619 | Other activities auxiliary to financial service activities | K | 66 | 661 | 6619 | 4 |
| K 662 | Activities auxiliary to insurance and pension funding | K | 66 | 662 | | 3 |
| K 6621 | Risk and damage evaluation | K | 66 | 662 | 6621 | 4 |
| K 6622 | Activities of insurance agents and brokers | K | 66 | 662 | 6622 | 4 |
| K 6629 | Other activities auxiliary to insurance and pension funding | K | 66 | 662 | 6629 | 4 |
| K 663 | Fund management activities | K | 66 | 663 | | 3 |
| K 6630 | Fund management activities | K | 66 | 663 | 6630 | 4 |
| L | Real estate activities | L | | | | 1 |
| L 68 | Real estate activities | L | 68 | | | 2 |
| L 681 | Real estate activities with own or leased property | L | 68 | 681 | | 3 |
| L 6810 | Real estate activities with own or leased property | L | 68 | 681 | 6810 | 4 |
| L 682 | Real estate activities on a fee or contract basis | L | 68 | 682 | | 3 |
| L 6820 | Real estate activities on a fee or contract basis | L | 68 | 682 | 6820 | 4 |
| M | Professional, scientific and technical activities | M | | | | 1 |
| M 69 | Legal and accounting activities | M | 69 | | | 2 |
| M 691 | Legal activities | M | 69 | 691 | | 3 |
| M 6910 | Legal activities | M | 69 | 691 | 6910 | 4 |
| M 692 | Accounting, bookkeeping and auditing activities; tax consultancy | M | 69 | 692 | | 3 |
| M 6920 | Accounting, bookkeeping and auditing activities; tax consultancy | M | 69 | 692 | 6920 | 4 |
| M 70 | Activities of head offices; management consultancy activities | M | 70 | | | 2 |
| M 701 | Activities of head offices | M | 70 | 701 | | 3 |
| M 7010 | Activities of head offices | M | 70 | 701 | 7010 | 4 |
| M 702 | Management consultancy activities | M | 70 | 702 | | 3 |
| M 7020 | Management consultancy activities | M | 70 | 702 | 7020 | 4 |
| M 71 | Architectural and engineering activities; technical testing and analysis | M | 71 | | | 2 |
| M 711 | Architectural and engineering activities and related technical consultancy | M | 71 | 711 | | 3 |
| M 7110 | Architectural and engineering activities and related technical consultancy | M | 71 | 711 | 7110 | 4 |
| M 712 | Technical testing and analysis | M | 71 | 712 | | 3 |
| M 7120 | Technical testing and analysis | M | 71 | 712 | 7120 | 4 |
| M 72 | Scientific research and development | M | 72 | | | 2 |
| M 721 | Research and experimental development on natural sciences and engineering | M | 72 | 721 | | 3 |
| M 7210 | Research and experimental development on natural sciences and engineering | M | 72 | 721 | 7210 | 4 |
| M 722 | Research and experimental development on social sciences and humanities | M | 72 | 722 | | 3 |
| M 7220 | Research and experimental development on social sciences and humanities | M | 72 | 722 | 7220 | 4 |
| M 73 | Advertising and market research | M | 73 | | | 2 |
| M 731 | Advertising | M | 73 | 731 | | 3 |
| M 7310 | Advertising | M | 73 | 731 | 7310 | 4 |
| M 732 | Market research and public opinion polling | M | 73 | 732 | | 3 |
| M 7320 | Market research and public opinion polling | M | 73 | 732 | 7320 | 4 |
| M 74 | Other professional, scientific and technical activities | M | 74 | | | 2 |
| M 741 | Specialized design activities | M | 74 | 741 | | 3 |
| M 7410 | Specialized design activities | M | 74 | 741 | 7410 | 4 |
| M 742 | Photographic activities | M | 74 | 742 | | 3 |
| M 7420 | Photographic activities | M | 74 | 742 | 7420 | 4 |
| M 749 | Other professional, scientific and technical activities n.e.c. | M | 74 | 749 | | 3 |
| M 7490 | Other professional, scientific and technical activities n.e.c. | M | 74 | 749 | 7490 | 4 |
| M 75 | Veterinary activities | M | 75 | | | 2 |
| M 750 | Veterinary activities | M | 75 | 750 | | 3 |
| M 7500 | Veterinary activities | M | 75 | 750 | 7500 | 4 |
| N | Administrative and support service activities | N | | | | 1 |
| N 77 | Rental and leasing activities | N | 77 | | | 2 |
| N 771 | Renting and leasing of motor vehicles | N | 77 | 771 | | 3 |
| N 7710 | Renting and leasing of motor vehicles | N | 77 | 771 | 7710 | 4 |
| N 772 | Renting and leasing of personal and household goods | N | 77 | 772 | | 3 |
| N 7721 | Renting and leasing of recreational and sports goods | N | 77 | 772 | 7721 | 4 |
| N 7722 | Renting of video tapes and disks | N | 77 | 772 | 7722 | 4 |
| N 7729 | Renting and leasing of other personal and household goods | N | 77 | 772 | 7729 | 4 |
| N 773 | Renting and leasing of other machinery, equipment and tangible goods | N | 77 | 773 | | 3 |
| N 7730 | Renting and leasing of other machinery, equipment and tangible goods | N | 77 | 773 | 7730 | 4 |
| N 774 | Leasing of intellectual property and similar products, except copyrighted works | N | 77 | 774 | | 3 |
| N 7740 | Leasing of intellectual property and similar products, except copyrighted works | N | 77 | 774 | 7740 | 4 |
| N 78 | Employment activities | N | 78 | | | 2 |
| N 781 | Activities of employment placement agencies | N | 78 | 781 | | 3 |
| N 7810 | Activities of employment placement agencies | N | 78 | 781 | 7810 | 4 |
| N 782 | Temporary employment agency activities | N | 78 | 782 | | 3 |
| N 7820 | Temporary employment agency activities | N | 78 | 782 | 7820 | 4 |
| N 783 | Other human resources provision | N | 78 | 783 | | 3 |
| N 7830 | Other human resources provision | N | 78 | 783 | 7830 | 4 |
| N 79 | Travel agency, tour operator, reservation service and related activities | N | 79 | | | 2 |
| N 791 | Travel agency and tour operator activities | N | 79 | 791 | | 3 |
| N 7911 | Travel agency activities | N | 79 | 791 | 7911 | 4 |
| N 7912 | Tour operator activities | N | 79 | 791 | 7912 | 4 |
| N 799 | Other reservation service and related activities | N | 79 | 799 | | 3 |
| N 7990 | Other reservation service and related activities | N | 79 | 799 | 7990 | 4 |
| N 80 | Security and investigation activities | N | 80 | | | 2 |
| N 801 | Private security activities | N | 80 | 801 | | 3 |
| N 8010 | Private security activities | N | 80 | 801 | 8010 | 4 |
| N 802 | Security systems service activities | N | 80 | 802 | | 3 |
| N 8020 | Security systems service activities | N | 80 | 802 | 8020 | 4 |
| N 803 | Investigation activities | N | 80 | 803 | | 3 |
| N 8030 | Investigation activities | N | 80 | 803 | 8030 | 4 |
| N 81 | Services to buildings and landscape activities | N | 81 | | | 2 |
| N 811 | Combined facilities support activities | N | 81 | 811 | | 3 |
| N 8110 | Combined facilities support activities | N | 81 | 811 | 8110 | 4 |
| N 812 | Cleaning activities | N | 81 | 812 | | 3 |
| N 8121 | General cleaning of buildings | N | 81 | 812 | 8121 | 4 |
| N 8129 | Other building and industrial cleaning activities | N | 81 | 812 | 8129 | 4 |
| N 813 | Landscape care and maintenance service activities | N | 81 | 813 | | 3 |
| N 8130 | Landscape care and maintenance service activities | N | 81 | 813 | 8130 | 4 |
| N 82 | Office administrative, office support and other business support activities | N | 82 | | | 2 |
| N 821 | Office administrative and support activities | N | 82 | 821 | | 3 |
| N 8211 | Combined office administrative service activities | N | 82 | 821 | 8211 | 4 |
| N 8219 | Photocopying, document preparation and other specialized office support activities | N | 82 | 821 | 8219 | 4 |
| N 822 | Activities of call centres | N | 82 | 822 | | 3 |
| N 8220 | Activities of call centres | N | 82 | 822 | 8220 | 4 |
| N 823 | Organization of conventions and trade shows | N | 82 | 823 | | 3 |
| N 8230 | Organization of conventions and trade shows | N | 82 | 823 | 8230 | 4 |
| N 829 | Business support service activities n.e.c. | N | 82 | 829 | | 3 |
| N 8291 | Activities of collection agencies and credit bureaus | N | 82 | 829 | 8291 | 4 |
| N 8292 | Packaging activities | N | 82 | 829 | 8292 | 4 |
| N 8299 | Other business support service activities n.e.c. | N | 82 | 829 | 8299 | 4 |
| O | Public administration and defence; compulsory social security | O | | | | 1 |
| O 84 | Public administration and defence; compulsory social security | O | 84 | | | 2 |
| O 841 | Administration of the State and the economic and social policy of the community | O | 84 | 841 | | 3 |
| O 8411 | General public administration activities | O | 84 | 841 | 8411 | 4 |
| O 8412 | Regulation of the activities of providing health care, education, cultural services and other social services, excluding social security | O | 84 | 841 | 8412 | 4 |
| O 8413 | Regulation of and contribution to more efficient operation of businesses | O | 84 | 841 | 8413 | 4 |
| O 842 | Provision of services to the community as a whole | O | 84 | 842 | | 3 |
| O 8421 | Foreign affairs | O | 84 | 842 | 8421 | 4 |
| O 8422 | Defence activities | O | 84 | 842 | 8422 | 4 |
| O 8423 | Public order and safety activities | O | 84 | 842 | 8423 | 4 |
| O 843 | Compulsory social security activities | O | 84 | 843 | | 3 |
| O 8430 | Compulsory social security activities | O | 84 | 843 | 8430 | 4 |
| P | Education | P | | | | 1 |
| P 85 | Education | P | 85 | | | 2 |
| P 851 | Pre-primary and primary education | P | 85 | 851 | | 3 |
| P 8510 | Pre-primary and primary education | P | 85 | 851 | 8510 | 4 |
| P 852 | Secondary education | P | 85 | 852 | | 3 |
| P 8521 | General secondary education | P | 85 | 852 | 8521 | 4 |
| P 8522 | Technical and vocational secondary education | P | 85 | 852 | 8522 | 4 |
| P 853 | Higher education | P | 85 | 853 | | 3 |
| P 8530 | Higher education | P | 85 | 853 | 8530 | 4 |
| P 854 | Other education | P | 85 | 854 | | 3 |
| P 8541 | Sports and recreation education | P | 85 | 854 | 8541 | 4 |
| P 8542 | Cultural education | P | 85 | 854 | 8542 | 4 |
| P 8549 | Other education n.e.c. | P | 85 | 854 | 8549 | 4 |
| P 855 | Educational support activities | P | 85 | 855 | | 3 |
| P 8550 | Educational support activities | P | 85 | 855 | 8550 | 4 |
| Q | Human health and social work activities | Q | | | | 1 |
| Q 86 | Human health activities | Q | 86 | | | 2 |
| Q 861 | Hospital activities | Q | 86 | 861 | | 3 |
| Q 8610 | Hospital activities | Q | 86 | 861 | 8610 | 4 |
| Q 862 | Medical and dental practice activities | Q | 86 | 862 | | 3 |
| Q 8620 | Medical and dental practice activities | Q | 86 | 862 | 8620 | 4 |
| Q 869 | Other human health activities | Q | 86 | 869 | | 3 |
| Q 8690 | Other human health activities | Q | 86 | 869 | 8690 | 4 |
| Q 87 | Residential care activities | Q | 87 | | | 2 |
| Q 871 | Residential nursing care facilities | Q | 87 | 871 | | 3 |
| Q 8710 | Residential nursing care facilities | Q | 87 | 871 | 8710 | 4 |
| Q 872 | Residential care activities for mental retardation, mental health and substance abuse | Q | 87 | 872 | | 3 |
| Q 8720 | Residential care activities for mental retardation, mental health and substance abuse | Q | 87 | 872 | 8720 | 4 |
| Q 873 | Residential care activities for the elderly and disabled | Q | 87 | 873 | | 3 |
| Q 8730 | Residential care activities for the elderly and disabled | Q | 87 | 873 | 8730 | 4 |
| Q 879 | Other residential care activities | Q | 87 | 879 | | 3 |
| Q 8790 | Other residential care activities | Q | 87 | 879 | 8790 | 4 |
| Q 88 | Social work activities without accommodation | Q | 88 | | | 2 |
| Q 881 | Social work activities without accommodation for the elderly and disabled | Q | 88 | 881 | | 3 |
| Q 8810 | Social work activities without accommodation for the elderly and disabled | Q | 88 | 881 | 8810 | 4 |
| Q 889 | Other social work activities without accommodation | Q | 88 | 889 | | 3 |
| Q 8890 | Other social work activities without accommodation | Q | 88 | 889 | 8890 | 4 |
| R | Arts, entertainment and recreation | R | | | | 1 |
| R 90 | Creative, arts and entertainment activities | R | 90 | | | 2 |
| R 900 | Creative, arts and entertainment activities | R | 90 | 900 | | 3 |
| R 9000 | Creative, arts and entertainment activities | R | 90 | 900 | 9000 | 4 |
| R 91 | Libraries, archives, museums and other cultural activities | R | 91 | | | 2 |
| R 910 | Libraries, archives, museums and other cultural activities | R | 91 | 910 | | 3 |
| R 9101 | Library and archives activities | R | 91 | 910 | 9101 | 4 |
| R 9102 | Museums activities and operation of historical sites and buildings | R | 91 | 910 | 9102 | 4 |
| R 9103 | Botanical and zoological gardens and nature reserves activities | R | 91 | 910 | 9103 | 4 |
| R 92 | Gambling and betting activities | R | 92 | | | 2 |
| R 920 | Gambling and betting activities | R | 92 | 920 | | 3 |
| R 9200 | Gambling and betting activities | R | 92 | 920 | 9200 | 4 |
| R 93 | Sports activities and amusement and recreation activities | R | 93 | | | 2 |
| R 931 | Sports activities | R | 93 | 931 | | 3 |
| R 9311 | Operation of sports facilities | R | 93 | 931 | 9311 | 4 |
| R 9312 | Activities of sports clubs | R | 93 | 931 | 9312 | 4 |
| R 9319 | Other sports activities | R | 93 | 931 | 9319 | 4 |
| R 932 | Other amusement and recreation activities | R | 93 | 932 | | 3 |
| R 9321 | Activities of amusement parks and theme parks | R | 93 | 932 | 9321 | 4 |
| R 9329 | Other amusement and recreation activities n.e.c. | R | 93 | 932 | 9329 | 4 |
| S | Other service activities | S | | | | 1 |
| S 94 | Activities of membership organizations | S | 94 | | | 2 |
| S 941 | Activities of business, employers and professional membership organizations | S | 94 | 941 | | 3 |
| S 9411 | Activities of business and employers membership organizations | S | 94 | 941 | 9411 | 4 |
| S 9412 | Activities of professional membership organizations | S | 94 | 941 | 9412 | 4 |
| S 942 | Activities of trade unions | S | 94 | 942 | | 3 |
| S 9420 | Activities of trade unions | S | 94 | 942 | 9420 | 4 |
| S 949 | Activities of other membership organizations | S | 94 | 949 | | 3 |
| S 9491 | Activities of religious organizations | S | 94 | 949 | 9491 | 4 |
| S 9492 | Activities of political organizations | S | 94 | 949 | 9492 | 4 |
| S 9499 | Activities of other membership organizations n.e.c. | S | 94 | 949 | 9499 | 4 |
| S 95 | Repair of computers and personal and household goods | S | 95 | | | 2 |
| S 951 | Repair of computers and communication equipment | S | 95 | 951 | | 3 |
| S 9511 | Repair of computers and peripheral equipment | S | 95 | 951 | 9511 | 4 |
| S 9512 | Repair of communication equipment | S | 95 | 951 | 9512 | 4 |
| S 952 | Repair of personal and household goods | S | 95 | 952 | | 3 |
| S 9521 | Repair of consumer electronics | S | 95 | 952 | 9521 | 4 |
| S 9522 | Repair of household appliances and home and garden equipment | S | 95 | 952 | 9522 | 4 |
| S 9523 | Repair of footwear and leather goods | S | 95 | 952 | 9523 | 4 |
| S 9524 | Repair of furniture and home furnishings | S | 95 | 952 | 9524 | 4 |
| S 9529 | Repair of other personal and household goods | S | 95 | 952 | 9529 | 4 |
| S 96 | Other personal service activities | S | 96 | | | 2 |
| S 960 | Other personal service activities | S | 96 | 960 | | 3 |
| S 9601 | Washing and (dry-) cleaning of textile and fur products | S | 96 | 960 | 9601 | 4 |
| S 9602 | Hairdressing and other beauty treatment | S | 96 | 960 | 9602 | 4 |
| S 9603 | Funeral and related activities | S | 96 | 960 | 9603 | 4 |
| S 9609 | Other personal service activities n.e.c. | S | 96 | 960 | 9609 | 4 |
| T | Activities of households as employers; undifferentiated goods- and services-producing activities of households for own use | T | | | | 1 |
| T 97 | Activities of households as employers of domestic personnel | T | 97 | | | 2 |
| T 970 | Activities of households as employers of domestic personnel | T | 97 | 970 | | 3 |
| T 9700 | Activities of households as employers of domestic personnel | T | 97 | 970 | 9700 | 4 |
| T 98 | Undifferentiated goods- and services-producing activities of private households for own use | T | 98 | | | 2 |
| T 981 | Undifferentiated goods-producing activities of private households for own use | T | 98 | 981 | | 3 |
| T 9810 | Undifferentiated goods-producing activities of private households for own use | T | 98 | 981 | 9810 | 4 |
| T 982 | Undifferentiated service-producing activities of private households for own use | T | 98 | 982 | | 3 |
| T 9820 | Undifferentiated service-producing activities of private households for own use | T | 98 | 982 | 9820 | 4 |
| U | Activities of extraterritorial organizations and bodies | U | | | | 1 |
| U 99 | Activities of extraterritorial organizations and bodies | U | 99 | | | 2 |
| U 990 | Activities of extraterritorial organizations and bodies | U | 99 | 990 | | 3 |
| U 9900 | Activities of extraterritorial organizations and bodies | U | 99 | 990 | 9900 | 4 |