Piotr Wybraniec

68.20.Z - Rental and operating of own or leased real estate

47.91.Z - Retail sale via mail order houses or via Internet

58.29.Z - Other software publishing

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

63.11.Z - Data processing, hosting and related activities

63.12.Z - Web portals

70.22.Z - Business and other management consultancy activities

71.12.Z - Engineering activities and related technical consultancy

73.11.Z - Advertising agencies activities

74.10.Z - Specialised design activities

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

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