J.M.W. Marcin Witkowski

45.20.Z

33.13.Z - Repair and maintenance of electronic and optical devices

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

43.11.Z - Demolition and destruction of buildings

43.13.Z - Performing excavations and geological-engineering drilling

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

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

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

43.39.Z - Specialized construction works

43.91.Z - Masonry works

46.61.Z - Wholesale trade of agricultural machinery and additional equipment

46.63.Z - Wholesale trade of machines used in mining, construction, and civil and water engineering

46.69.Z - Wholesale trade

46.75.Z - Wholesale trade

47.19.Z - Retail trade

47.89.Z - Retail trade

47.91.Z - Intermediary retail sale, non-specialized

47.99.Z - Retail trade

49.41.Z - Road freight transport

52.21.Z - Support activities for land transport

71.20.B - Inspection and issuing opinions on the technical condition of chimneys and ventilation ducts

81.21.Z - General cleaning of buildings

81.29.Z - Services related to maintaining buildings and landscaping

45.11.Z

45.19.Z

45.31.Z

45.32.Z

45.40.Z