OPTIMAL ENERGY CEZARY KRUK

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

28.25.Z - Manufacture of industrial refrigeration, ventilation, and air-conditioning equipment

33.12.Z - Repair and maintenance of machinery

33.20.Z - Installation of industrial machinery, equipment, and devices

42.11.Z - Works related to the construction of roads and highways

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

43.11.Z - Demolition and destruction of buildings

43.21.Z - Installation of electrical systems

43.99.Z - Other specialized construction works, not classified elsewhere

46.11.Z - Activity of agents involved in wholesale trade of agricultural products, live animals, raw materials for the textile industry, and semi-finished products

46.18.Z - Activity of agents involved in wholesale trade of other specified goods

46.19.Z - Activity of agents involved in wholesale trade of non-specialized goods

46.21.Z - Wholesale trade of cereals, unprocessed tobacco, seeds, and animal feed

46.71.Z - Wholesale trade of motor vehicles

46.73.Z - Wholesale trade of motorcycles and parts and accessories for them

46.77.Z - Wholesale trade

46.90.Z - Non-specialized wholesale trade

47.99.Z - Retail trade

63.11.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

64.92.Z - Other forms of credit granting

74.90.Z - Other professional, scientific and technical activities, not elsewhere classified

95.22.Z - Repair and maintenance of household appliances and equipment for household and gardening use