KRZYSZTOF DREWICZ EfTel

62.02.Z - Computer consultancy activities

26.20.Z - Manufacture of computers and peripheral equipment

26.30.Z - Manufacture of(tele)communication equipment

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

43.21.Z - Electrical installation

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

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

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

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

58.19.Z - Other publishing activities

58.29.Z - Other software publishing

61.10.Z - Wired telecommunications activities

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

61.30.Z - Satellite telecommunications activities

61.90.Z - Other telecommunications activities

62.01.Z - Computer programming 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

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Other technical testing and analysis

74.10.Z - Specialised design activities

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

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

80.20.Z - Security systems service activities

82.20.Z - Activities of call centres

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

85.60.Z - Educational support activities

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

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

95.21.Z - Repair and maintenance of consumer electronics