TT Smart System Hanna Krajewska

70.22.Z - Business and other management consultancy activities

43.21.Z - Electrical installation

43.99.Z - Other specialised construction activities not elsewhere classified

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

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

95.22.Z - Repair and maintenance of household appliances and home and garden equipment