JSYSTEMS ANDRZEJ KLUSIEWICZ

62.02.Z - Computer consultancy activities

26.20.Z - Manufacture of computers and peripheral equipment

42.22.Z - Works related to construction of telecommunications and electricity lines

46.51.Z - Wholesale of computers, peripheral equipment and software

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

58.21.Z - Publishing of computer games

58.29.Z - Other software publishing

61.10.Z - Wired telecommunications activities

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

62.01.Z - Computer programming activities

62.03.Z - Computer facilities management activities

63.11.Z - Data processing, hosting and related activities

77.33.Z - Rental and leasing of office machinery and equipment, including computers

82.11.Z - Office administrative service activities

82.19.Z - Photocopying, document preparation and other specialised office support activities

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

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