mgr inż. Jacek Stefaniak USŁUGI I DORADZTWO TECHNICZNE

71.12.Z - Engineering activities and related technical consultancy

33.14.Z - Repair and maintenance of electrical devices

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

41.20.Z - Construction work related to the construction of residential and non-residential buildings

42.22.Z - Works related to the construction of telecommunications and electrical lines

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

43.21.Z - Installation of electrical systems

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

43.29.Z - Specialized construction works

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

47.91.Z - Intermediary retail sale, non-specialized

55.90.Z - Other accommodation services

62.01.Z - Activities related to programming, IT consulting, and related activities

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