PIOTR SZCZEŚNIAK

70.21.Z - Head office activities and management consultancy

18.13.Z - Service activities related to printing preparation

47.91.Z - Intermediary retail sale, non-specialized

58.11.Z - Publishing of books

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

60.10.Z - Broadcasting of radio programs and distribution of sound recordings

60.20.Z - Broadcasting of general-access and subscription-based television programs and distribution of video recordings

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

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

74.10.Z - Specialized design activities

74.20.Z - Photographic activities

74.30.Z - Translation and interpretation activities

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

82.99.Z - Other business support activities, not elsewhere classified

85.60.Z - Educational support activities