| OKVED code | Type | Name of activity type |
|---|
| 71.12.12 | Core activity | Stahl-Gro?handel |
| 09.10.9 | Additional activity | All other services in the field of oil and natural gas |
| 25.21.2 | Additional activity | Manufacture of central heating boilers |
| All types of activities |
| 25.30.1 | Additional activity | Manufacture of steam generators and their parts |
| 26.20 | Additional activity | Manufacture of computers and peripheral equipment |
| 27.11 | Additional activity | Manufacture of electric motors, generators and transformers |
| 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 |
| 28.21.1 | Additional activity | Manufacture of furnaces and furnace burners 2817 |
| 28.21.2 | Additional activity | Solar systems, manufacturing |
| 28.41 | Additional activity | Manufacture of metal-working equipment |
| 28.49.4 | Additional activity | Production of dividing heads and other special attachments for machine tools |
| 33.12 | Additional activity | Repair of fabricated metal products, machinery and equipment |
| 33.13 | Additional activity | Repair of electronic and optical 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 |
| 35.11.2 | Additional activity | Electricity generation from renewable energy sources and other energy sources with other suppliers for distribution |
| 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 |
| 35.14 | Additional activity | Electricity Trade |
| 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 |
| 43.21 | Additional activity | Building installation |
| 43.22 | Additional activity | Production of sanitary-engineering works, installation of heating systems and air conditioning systems |
| 43.29 | Additional activity | Gas Heater production |
| 43.99.1 | Additional activity | Scaffolding construction |
| 46.1 | Additional activity | Commercial mediation of all kinds |
| 46.18.99 | Additional activity | Agents of other goods in wholesale trade, not included in other categories |
| 46.19 | Additional activity | Activity of agents in wholesale trade of universal assortment of goods |
| 46.4 | Additional activity | Wholesale of household goods |
| 46.43.2 | Additional activity | Wholesale of electrical household appliances |
| 46.43.3 | Additional activity | Wholesale of consumer electronics |
| 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 |
| 46.7 | Additional activity | Other specialised wholesale |
| 46.74.2 | Additional activity | Wholesale of plumbing and gas, water and heating |
| 46.76 | Additional activity | Wholesale trade of other intermediate products |
| 62.01 | Additional activity | Computer programming, consultancy and related activities |
| 62.02 | Additional activity | Activities and advisory work in the field of computer technology |
| 62.09 | Additional activity | Activities related to the usage of computers and information technology, other |
| 63.11 | Additional activity | Data processing activities, the provision of hosting services and related activities |
| 63.11.1 | Additional activity | Data processing, hosting and related activities |
| 69.10 | Additional activity | Legal activities |
| 69.20.1 | Additional activity | Auditing and tax consulting, bookkeeping |
| 70.22 | Additional activity | Advice on business and management |
| 71.1 | Additional activity | Architectural and engineering activities and related technical consultancy |
| 71.11.1 | Additional activity | Engineering activities and related technical consultancy |
| 71.12 | Additional activity | Engineering office |
| 71.12.13 | Additional activity | High civil engineers and offices |