| OKVED code | Type | Name of activity type |
|---|
| 64.20 | Core activity | Activities of holding companies |
| 25.21.2 | Additional activity | Manufacture of central heating boilers |
| 25.30 | Additional activity | Manufacture of steam generators, except central heating boilers |
| All types of activities |
| 25.30.1 | Additional activity | Manufacture of steam generators and their parts |
| 27.12 | Additional activity | Manufacture of electricity distribution and control apparatus |
| 28.11 | Additional activity | Manufacture of engines and turbines, except aircraft, vehicle and cycle engines |
| 28.11.2 | Additional activity | Turbine Manufacturing |
| 28.11.21 | Additional activity | Production of steam turbines |
| 28.11.22 | Additional activity | Production of hydraulic turbines and water wheels |
| 28.11.23 | Additional activity | Production of gas turbines, excluding turbo-jets and turbo-prop |
| 28.12 | Additional activity | Production of hydraulic and pneumatic power equipment |
| 28.12.1 | Additional activity | Manufacture of hydraulic and pneumatic components and systems |
| 28.12.2 | Additional activity | Manufacture of hydraulic and pneumatic components and systems |
| 28.13 | Additional activity | Manufacture of other pumps and compressors |
| 28.14 | Additional activity | Manufacture of other pumps and compressors |
| 28.21 | Additional activity | Manufacture of furnaces and furnace burners 2815 |
| 28.21.1 | Additional activity | Manufacture of furnaces and furnace burners 2817 |
| 28.25.1 | Additional activity | Production of heat exchangers, air-conditioning equipment for industrial refrigeration and freezing equipment, equipment for filtering and treating gas |
| 28.29 | Additional activity | Production of other machines and equipment of common purpose, not included in other categories |
| 28.29.11 | Additional activity | generators for generating or water gas, acetylene and similar gas generators, units for distillation and purification |
| 33.11 | Additional activity | Repair of fabricated metal products |
| 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 |
| 35.11.4 | Additional activity | Electricity generation from thermal power with other suppliers for distribution |
| 35.12 | Additional activity | Electricity transmission and technological connection to distribution network |
| 35.12.1 | Additional activity | power transmission |
| 35.12.2 | Additional activity | Grid connection to the 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 |
| 35.30.2 | 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) |
| 38.11 | Additional activity | Collection of non-hazardous waste |
| 38.12 | Additional activity | Hazardous waste collection |
| 38.21 | Additional activity | Treatment and disposal of non-hazardous waste |
| 38.22 | Additional activity | Treatment and disposal of hazardous waste |
| 38.32 | Additional activity | Recovery of sorted materials |
| 38.32.1 | Additional activity | Recycling of textile waste and scrap |
| 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 |
| 42.99 | Additional activity | Hydraulic |
| 46.69 | Additional activity | Wholesale of other machinery and equipment |