Usługi Informatyczne Marcin Pietrzyk

62.09.Z - Other information technology and computer service activities

33.13.Z - Repair and maintenance of electronic and optical equipment

33.14.Z - Repair and maintenance of electrical equipment

33.20.Z - Installation of industrial machinery and equipment and outfit

43.21.Z - Electrical installation

43.29.Z - Other construction installation

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

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

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

62.03.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

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