| OKVED code | Type | Name of activity type |
|---|
| 77.39 | Core activity | Renting and leasing of air transport equipment |
| 25.11 | Additional activity | Manufacture of metal structures, products and their parts |
| 27.11.1 | Additional activity | Manufacture of electric motors, generators and transformers |
| All types of activities |
| 27.12 | Additional activity | Manufacture of electricity distribution and control apparatus |
| 28.25.1 | Additional activity | Production of heat exchangers, air-conditioning equipment for industrial refrigeration and freezing equipment, equipment for filtering and treating gas |
| 33.12 | Additional activity | Repair of fabricated metal products, machinery and equipment |
| 33.14 | Additional activity | Repair of electrical equipment |
| 33.20 | Additional activity | Installation of industrial machinery and equipment |
| 35.11 | Additional activity | Electric power generation, transmission and distribution |
| 35.11.1 | Additional activity | Production of electricity |
| 35.12 | Additional activity | Electricity transmission and technological connection to distribution network |
| 35.13 | Additional activity | electricity distribution |
| 35.14 | Additional activity | Electricity Trade |
| 35.30 | Additional activity | Production, transmission and distribution of steam and hot water; air conditioning |
| 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 |
| 35.30.13 | Additional activity | Production of steam and hot water (thermal energy) of other power plants and industrial power stations |
| 35.30.14 | Additional activity | Production of steam and hot water (heat power) by boiler |
| 35.30.15 | Additional activity | Manufacture of ice or chilled water (natural water) for cooling |
| 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 |
| 35.30.6 | Additional activity | Commercial steam and hot water (thermal energy) |
| 41.20 | Additional activity | Construction of buildings |
| 42.11 | Additional activity | Construction of roads and motorways |
| 42.21 | Additional activity | Construction engineering services for water supply and drainage, gas |
| 42.22.1 | Additional activity | Construction of long-distance power lines and communication |
| 42.22.2 | Additional activity | Pipeline, road construction, well construction and sewage treatment plant construction 4220 |
| 42.22.3 | Additional activity | Hunting clubs |
| 42.99 | Additional activity | Hydraulic |
| 43.21 | Additional activity | Building installation |
| 43.22 | Additional activity | Production of sanitary-engineering works, installation of heating systems and air conditioning systems |
| 43.99.3 | Additional activity | Works piling and construction works for foundations |
| 43.99.4 | Additional activity | Stair company |
| 43.99.5 | Additional activity | installation of structural steel works |
| 46.69.2 | Additional activity | Wholesale trade of engineering maintenance materials and accessories of machines |
| 46.69.5 | Additional activity | Wholesale trade industrial electrical equipment, machinery, equipment and materials |
| 46.69.9 | Additional activity | Wholesale trade of other machines, devices and equipment and equipment of common industrial and special purpose |
| 68.20 | Additional activity | Renting and operating of own or leased land, buildings and dwellings |
| 68.32 | Additional activity | Management of land, buildings and homes for others |
| 71.11.1 | Additional activity | Engineering activities and related technical consultancy |
| 71.12 | Additional activity | Engineering office |
| 71.12.1 | Additional activity | Structural engineering firms for overall planning |
| 71.12.12 | Additional activity | Stahl-Gro?handel |
| 71.12.45 | Additional activity | Civil engineers and offices |
| 71.20 | Additional activity | Technical testing, analysis and certification |
| 71.20.4 | Additional activity | Testing, research and analysis of complete mechanical and electrical systems, energy audit |
| 71.20.6 | Additional activity | Expertise of project documentation and engineering survey results |
| 71.20.8 | Additional activity | Certification of products, services and organizations |
| 77.32 | Additional activity | Renting and leasing of construction machinery and equipment |
| 77.39.21 | Additional activity | Rental and leasing of engines, turbines and machines |