Piotr Nisztor - Wydawnictwo Ścisle Tajne

90.03.Z - Creative activities and activities related to the staging of artistic performances

58.11.Z - Publishing of books

58.12.Z - Publishing of newspapers

58.13.Z - Publishing of journals and periodicals

58.14.Z - Publishing activities

58.19.Z - Other publishing activities, excluding software publishing

59.11.Z - Activities related to the production of films, video recordings, and television programs

59.12.Z - Post-production activities related to films, video recordings, and television programs

59.13.Z - Activities related to the distribution of films and video recordings

59.14.Z - Activities related to the projection of films

59.20.Z - Sound recording and music publishing activities

63.11.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

63.12.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

63.91.Z - Portal and search engine activities

63.99.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

70.21.Z - Head office activities and management consultancy

70.22.Z - Head office activities and management consultancy

72.20.Z - Scientific research and development in social sciences and humanities

73.11.Z - Advertising agency activities

73.12.A - Advertising through mass media

73.12.B - Advertising through mass media

73.12.C - Advertising through mass media

73.12.D - Advertising through mass media

73.20.Z - Market research and public opinion polling