Grzegorz Szajna

62.01.Z - Computer programming activities

58.21.Z - Publishing of computer games

58.29.Z - Other software publishing

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

63.12.Z - Web portals

63.91.Z - News agency activities

63.99.Z - Other information service activities not elsewhere classified

73.12.C - Intermediation in the sale of the place on advertising aims in electronic media (Internet)

73.12.D - Intermediation in the sale of the place on advertising aims in other media

74.20.Z - Photographic 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

95.24.Z - Repair and maintenance of furniture and home furnishings