JENEK INVEST MARIUSZ JENEK

43.42.Z - Performing other specialized construction works related to the construction of buildings

16.11.Z - Sawmill products production

16.23.Z - Production of other carpentry and joinery products for construction

24.10.Z - Production of pig iron, ferrous alloys, cast iron, and steel, and metal products

24.20.Z - Production of pipes, tubes, closed profiles, and fittings from steel

24.31.Z - Production of cold drawn rods

24.32.Z - Production of cold rolled flat products

24.33.Z - Production of cold-formed products

25.11.Z - Production of metal constructions and their parts

33.12.Z - Repair and maintenance of machinery

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

36.00.Z - Extraction, treatment, and supply of water

41.00.B - Construction work related to the construction of non-residential buildings

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

42.12.Z - Works related to the construction of railways and underground railways

42.13.Z - Works related to the construction of bridges and tunnels

42.21.Z - Works related to the construction of transmission pipelines and distribution networks

42.91.Z - Works related to the construction of water engineering objects

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

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

43.21.Z - Installation of electrical systems

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

43.23.Z - Installation of insulation

43.24.Z - Installation of other building systems

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

43.33.Z - Flooring, wallpapering, and cladding of walls

43.34.Z - Painting and glazing

43.35.Z - Performing other finishing construction works

43.41.Z - Performing roof structures and coverings

43.50.Z - Specialized construction works in the field of civil and water engineering

43.60.Z - Intermediation in specialized construction services

43.91.Z - Masonry works

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

46.64.Z - Wholesale trade of other machines and devices

46.82.Z - Wholesale trade of metals and metal ores

46.83.Z - Wholesale trade of wood, construction materials, and sanitary equipment

46.84.Z - Wholesale trade of metal products and hydraulic and heating equipment and accessories

46.85.A - Wholesale trade of chemical fertilizers and plant protection products

46.85.B - Other wholesale trade of chemical products

46.90.Z - Non-specialized wholesale trade

47.52.Z - Retail sale of small metal products, building materials, paints, and glass

47.55.Z - Retail sale of furniture, lighting equipment, tableware, and other household articles

68.11.Z - Buying and selling real estate on own account

68.31.Z - Real estate brokerage

71.11.Z - Architectural activities

77.32.Z - Rental and leasing of construction machinery and equipment

91.22.Z - Activities related to historical sites and monuments

91.30.Z - Conservation and restoration activities and other supporting activities for cultural heritage