Johnny Messebau Jan KORNILUK

70.20.Z - Business and management consultancy activities

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

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

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

43.31.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

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

47.79.A - Retail sale of used or antique books

73.20.Z - Market research and public opinion polling

74.91.Z - Patent attorney and marketing activities

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

80.09.Z - Other security activities, not elsewhere classified

82.10.Z - Office administrative support activities, including related services

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

85.59.A - Foreign language education

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms