| OKVED code | Type | Name of activity type |
|---|
| 25.21 | Core activity | Production of radiators and boilers for central heating |
| 24.33 | Additional activity | Production of profiles by cold forming or bending |
| 25.11 | Additional activity | Manufacture of metal structures, products and their parts |
| All types of activities |
| 25.29 | Additional activity | Manufacture of other tanks, reservoirs and containers |
| 25.30.1 | Additional activity | Manufacture of steam generators and their parts |
| 25.91 | Additional activity | Manufacture of steel drums, cans, buckets and containers of metal |
| 26.51.7 | Additional activity | Manufacturing devices and equipment for automatic regulation or control |
| 27.11.1 | Additional activity | Manufacture of electric motors, generators and transformers |
| 27.12 | Additional activity | Manufacture of electricity distribution and control apparatus |
| 28.21 | Additional activity | Manufacture of furnaces and furnace burners 2815 |
| 28.25.1 | Additional activity | Production of heat exchangers, air-conditioning equipment for industrial refrigeration and freezing equipment, equipment for filtering and treating gas |
| 28.25.12 | Additional activity | Production of equipment for air conditioning |
| 28.29.1 | Additional activity | Machines and plants for drinking water, industrial water and wastewater treatment, production |
| 28.29.7 | Additional activity | Production of non-electrical equipment and tools for soldering, brazing or welding machines and apparatus for thermal spraying |
| 33.12 | Additional activity | Repair of fabricated metal products, machinery and equipment |
| 33.20 | Additional activity | Installation of industrial machinery and equipment |
| 35.30.1 | Additional activity | Cogeneration plant with heat produced by other suppliers for distribution |
| 35.30.11 | Additional activity | Production of steam and hot water (thermal energy), thermal power plants |
| 35.30.14 | Additional activity | Production of steam and hot water (heat power) by boiler |
| 35.30.4 | Additional activity | Heat through district heating plant with no other suppliers for distribution |
| 35.30.5 | Additional activity | Heat distribution without generating |
| 41.10 | Additional activity | Construction of buildings |
| 41.20 | Additional activity | Construction of buildings |
| 42.21 | Additional activity | Construction engineering services for water supply and drainage, gas |
| 42.22 | Additional activity | Construction of utility projects for electricity and telecommunications |
| 43.12 | Additional activity | Site preparation work |
| 43.21 | Additional activity | Building installation |
| 43.22 | Additional activity | Production of sanitary-engineering works, installation of heating systems and air conditioning systems |
| 43.39 | Additional activity | Other construction installation |
| 43.99.1 | Additional activity | Scaffolding construction |
| 43.99.2 | Additional activity | Erection of chimneys and industrial ovens |
| 43.99.4 | Additional activity | Stair company |
| 43.99.5 | Additional activity | installation of structural steel works |
| 43.99.7 | Additional activity | Seal against water and moisture |
| 43.99.9 | Additional activity | Ready-house-and part-finished building manufacturer |
| 46.69.9 | Additional activity | Wholesale trade of other machines, devices and equipment and equipment of common industrial and special purpose |
| 46.74.2 | Additional activity | Wholesale of plumbing and gas, water and heating |
| 47.52.7 | Additional activity | Retail trade of construction materials not included in other categories, in specialized stores |
| 49.41.2 | Additional activity | Transportation of goods by non-specialized vehicles |
| 71.12.1 | Additional activity | Structural engineering firms for overall planning |
| 71.12.11 | Additional activity | Civil engineers and construction offices |
| 71.12.13 | Additional activity | High civil engineers and offices |
| 71.12.2 | Additional activity | Engineering firms for technical planning and engineering design |
| 71.12.45 | Additional activity | Civil engineers and offices |
| 71.12.6 | Additional activity | Activities in the field of technical regulation, standardization, metrology, accreditation, product cataloging |