MIROSŁAW PIETRUSEWICZ

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

58.19.Z - Other publishing activities

58.29.Z - Other software publishing

61.90.Z - Other telecommunications activities

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

70.22.Z - Business and other management consultancy activities

71.12.Z - Engineering activities and related technical consultancy

82.30.Z - Organisation of conventions and trade shows