KLAUDIUSZ MACIEJOWSKI

62.03.Z - Computer facilities management activities

33.13.Z - Repair and maintenance of electronic and optical equipment

43.21.Z - Electrical installation

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.09.Z - Other information technology and computer service activities

70.21.Z - Public relations and communication activities

71.20.B - Other technical testing and analysis

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

82.99.Z - Other business support service activities not elsewhere classified

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

85.60.Z - Educational support activities

95.11.Z - Repair and maintenance of computers and peripheral equipment

95.12.Z - Repair and maintenance of (tele)communication equipment

95.21.Z - Repair and maintenance of consumer electronics