STOWARZYSZENIE TECHNIKÓW I EKSPERTÓW OSUSZANIA

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

43.39.Z - Specialized construction works

71.12.Z - Engineering activities and related technical consultancy

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

73.20.Z - Market research and public opinion polling

74.90.Z - 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

85.59 - Other non-school forms of education, not classified elsewhere