Jacek Kret conKret

33.14.Z - Repair and maintenance of electrical devices

33.12.Z - Repair and maintenance of machinery

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

33.17.Z - Repair and maintenance of other civil transport equipment

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

43.12.Z - Site preparation for construction

43.21.Z - Installation of electrical systems

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

43.24.Z - Installation of other building systems

43.32.Z - Installation of building carpentry

59.20.Z - Sound recording and music publishing activities

62.10.B - Programming activities

71.12.B - Engineering activities and related technical consultancy

71.20.C - Other technical testing and analysis

72.10.Z - Scientific research and development in natural and technical sciences

74.99.Z - All other professional, scientific and technical activities, not elsewhere classified

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

77.39.Z - Rental and leasing of other machinery, equipment, and tangible assets, not elsewhere classified

86.95.Z - Physiotherapy activities

90.20.C - Activities related to the staging of artistic performances

90.39.Z - Other activities supporting creative activities and activities related to staging artistic performances

93.29.B - Other entertainment and recreational activities, not elsewhere classified

95.10.Z - Repair and maintenance of computers and telecommunications equipment

95.21.Z - Repair and maintenance of electronic equipment for general use

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

95.31.A - Mechanical repair and servicing of motor vehicles, excluding motorcycles

95.31.B - Bodywork and paint repair, and maintenance of motor vehicles, excluding motorcycles

95.32.Z - Repair and maintenance of motorcycles