4Comprehension Grzegorz Piwowarek

62.02.Z - Computer consultancy activities

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

62.01.Z - Computer programming activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service 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