Keron Marcin Norek

43.21.Z - Installation of electrical systems

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

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

47.91.Z - Intermediary retail sale, non-specialized

47.92.Z - Intermediary retail sale, specialized

58.11.Z - Publishing of books

58.13.Z - Publishing of journals and periodicals

58.19.Z - Other publishing activities, excluding software publishing

60.39.Z - Other content distribution activities

63.10.D - Services related to computing infrastructure, data processing, website management (hosting), and related activities

63.92.Z - Other information-related services

70.20.Z - Business and management consultancy activities

73.11.Z - Advertising agency activities

73.20.Z - Market research and public opinion polling

85.59.A - Foreign language education

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

85.69.Z - Educational support activities, not classified elsewhere