Start-up Mariusz Barczak

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

32.40.Z - Production of games and toys

60.39.Z - Other content distribution activities

62.10.B - Programming activities

72.10.Z - Scientific research and development in natural and technical sciences

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

73.20.Z - Market research and public opinion polling

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

79.90.Z - Other reservation services and related activities (tourism sector)

85.69.Z - Educational support activities, not classified elsewhere

90.11.Z - Literary activities and activities related to composing music

96.99.Z - Other individual services not classified elsewhere