3cztery Michał Giersz

70.22.Z - Business and other management consultancy activities

58.21.Z - Publishing of computer games

59.11.Z - Motion picture, video and television programme production activities

59.12.Z - Motion picture, video and television programme post-production activities

59.20.Z - Sound recording and music publishing activities

70.21.Z - Public relations and communication activities

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

82.30.Z - Organisation of conventions and trade shows

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