`INSTAL` MAREK OKRZEJA

43.21.Z - Electrical installation

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

43.29.Z - Other construction installation

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

46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof

47.99.Z - Other retail sale not in stores, stalls or markets

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

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

63.12.Z - Web portals

63.99.Z - Other information service activities not elsewhere classified

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

80.20.Z - Security systems service activities

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

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