GNU-tech Krzysztof Raczkowski

62.03.Z - Computer facilities management activities

17.23.Z - Manufacture of paper stationery

17.29.Z - Manufacture of other articles of paper and paperboard

18.20.Z - Reproduction of recorded media

32.12.Z - Manufacture of jewellery and related articles

32.13.Z - Manufacture of imitation jewellery and related articles

47.41.Z - Retail sale of computers, peripheral units and software in specialised stores

47.42.Z - Retail sale of telecommunications equipment in specialised stores

47.78.Z - Other retail sale of new goods in specialised stores

47.79.Z - Retail sale of second-hand goods in specialised stores

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

58.29.Z - Other software publishing

61.10.Z - Wired telecommunications activities

61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities

61.90.Z - Other telecommunications activities

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy 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

72.19.Z - Other research and experimental development on natural sciences and engineering

74.10.Z - Specialised design activities

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

77.40.Z - Leasing of intellectual property and similar products, except copyrighted works

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

90.03.Z - Artistic creation activities

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

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