| OKVED code | Type | Name of activity type |
|---|
| 25.21.2 | Core activity | Manufacture of central heating boilers |
| 24.20 | Additional activity | Production of steel pipes, hollow profiles and fittings |
| 24.33 | Additional activity | Production of profiles by cold forming or bending |
| All types of activities |
| 24.51 | Additional activity | Castings iron |
| 25.11 | Additional activity | Manufacture of metal structures, products and their parts |
| 25.21.1 | Additional activity | Production of radiators |
| 25.29 | Additional activity | Manufacture of other tanks, reservoirs and containers |
| 25.30.1 | Additional activity | Manufacture of steam generators and their parts |
| 25.62 | Additional activity | Treatment and coating of metals |
| 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 |
| 28.14 | Additional activity | Manufacture of other pumps and compressors |
| 28.15.2 | Additional activity | Production of bearing housings and plain bearings, gears, gearing and driving elements |
| 28.21.1 | Additional activity | Manufacture of furnaces and furnace burners 2817 |
| 28.21.2 | Additional activity | Solar systems, manufacturing |
| 28.22.7 | Additional activity | Manufacturing pneumatic elevators and conveyors and other equipment of continuous action, for goods or materials |
| 28.24 | Additional activity | Manufacture of powerdriven hand tools |
| 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 |
| 35.12 | Additional activity | Electricity transmission and technological connection to distribution network |
| 35.30.1 | Additional activity | Cogeneration plant with heat produced by other suppliers for distribution |
| 35.30.14 | Additional activity | Production of steam and hot water (heat power) by boiler |
| 35.30.2 | Additional activity | District heating plant with heat produced by other suppliers for distribution |
| 35.30.3 | Additional activity | Heat produced by cogeneration other suppliers for distribution |
| 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 |
| 36.00.2 | Additional activity | Distribution of water for drinking and industrial needs |
| 41.10 | 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 |
| 43.34.1 | Additional activity | Painting and varnishing trade |
| 43.39 | Additional activity | Other construction installation |
| 43.99 | Additional activity | Other specialized construction activities |
| 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 | Additional activity | Wholesale of other machinery and equipment |
| 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 | Additional activity | Furniture stores |
| 49.41.2 | Additional activity | Transportation of goods by non-specialized vehicles |
| 49.42 | Additional activity | The provision of transport services |
| 68.20.2 | Additional activity | Renting and operating of own or leased commercial properties and non- residential buildings |
| 71.12 | Additional activity | Engineering office |
| 71.12.1 | Additional activity | Structural engineering firms for overall planning |
| 71.12.11 | Additional activity | Civil engineers and construction offices |
| 71.12.12 | Additional activity | Stahl-Gro?handel |
| 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 |
| 82.99 | Additional activity | Other business support services to businesses and individuals not otherwise specified |