ISN SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

74.90.Z - Other professional, scientific and technical activities not elsewhere classified

58.11.Z - Book publishing

58.14.Z - Publishing of journals and periodicals

63.12.Z - Web portals

70.21.Z - Public relations and communication activities

70.22.Z - Business and other management consultancy activities

72.20.Z - Research and experimental development on social sciences and humanities

73.20.Z - Market research and public opinion polling

82.30.Z - Organisation of conventions and trade shows

85.59.B - Other out-of-school forms of education, not elsewhere classified